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12 Commits

Author SHA1 Message Date
mlm
5403cc1fbd - Fix for recurring static variable (make it a member of the window group
structure)


git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@1188 18797224-902f-48f8-a5cc-f745e15eee43
1998-05-06 20:16:14 +00:00
mlm
ea8b7ae403 Moving this file for js_ops_BRANCH
git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@1187 18797224-902f-48f8-a5cc-f745e15eee43
1998-05-06 20:13:26 +00:00
mlm
792da6f338 - Replace thread safety fixes that I accidentally didn't check in when the
source tree moved to mozilla.

   - Make timeout globals thread-safe as part of the thread group object
   - Add LM locking to go with JS_BeginRequest stuff


git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@1162 18797224-902f-48f8-a5cc-f745e15eee43
1998-05-05 22:26:12 +00:00
mlm
8f82414d4c Branch libpref for OPS new functionality for upcoming ns->moz renaming
git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@635 18797224-902f-48f8-a5cc-f745e15eee43
1998-04-25 00:10:10 +00:00
mlm
ad93b6b9aa Branch libhook for OPS new functionality for upcoming ns->moz renaming
git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@634 18797224-902f-48f8-a5cc-f745e15eee43
1998-04-25 00:09:11 +00:00
mlm
bf3132f22b Branch libparse for OPS new functionality for upcoming ns->moz renaming
git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@633 18797224-902f-48f8-a5cc-f745e15eee43
1998-04-25 00:07:25 +00:00
mlm
66d0cd3091 Branch libnet for OPS new functionality for upcoming ns->moz renaming
git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@631 18797224-902f-48f8-a5cc-f745e15eee43
1998-04-25 00:06:27 +00:00
mlm
d1186c4663 Branch libmocha for OPS new functionality for upcoming ns->moz renaming
git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@630 18797224-902f-48f8-a5cc-f745e15eee43
1998-04-25 00:01:56 +00:00
mlm
6b1115ec03 Branch layout for OPS new functionality for upcoming ns->moz renaming
git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@629 18797224-902f-48f8-a5cc-f745e15eee43
1998-04-24 23:43:28 +00:00
mlm
92c4bd320a Branch mozilla.mak for OPS new functionality for upcoming ns->moz renaming
git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@628 18797224-902f-48f8-a5cc-f745e15eee43
1998-04-24 23:38:24 +00:00
mlm
f8c60c6777 Branch libevent for OPS new functionality for upcoming ns->moz renaming
git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@627 18797224-902f-48f8-a5cc-f745e15eee43
1998-04-24 23:37:38 +00:00
(no author)
bc0482fed5 This commit was manufactured by cvs2svn to create branch 'js_ops_BRANCH'.
git-svn-id: svn://10.0.0.236/branches/js_ops_BRANCH@595 18797224-902f-48f8-a5cc-f745e15eee43
1998-04-24 07:21:02 +00:00
159 changed files with 44147 additions and 56052 deletions

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*
jscookie.h -- javascript reflection of cookies for filters.
Created: Frederick G.M. Roeber <roeber@netscape.com>, 12-Jul-97.
Adopted: Judson Valeski, 1997
*/
#ifndef _JSCOOKIE_H_
#define _JSCOOKIE_H_
typedef enum {
JSCF_accept,
JSCF_reject,
JSCF_ask,
JSCF_whatever,
JSCF_error
}
JSCFResult;
typedef struct {
char *path_from_header;
char *host_from_header;
char *name_from_header;
char *cookie_from_header;
time_t expires;
char *url;
Bool secure;
Bool domain;
Bool prompt; /* the preference */
NET_CookieBehaviorEnum preference;
}
JSCFCookieData;
extern JSCFResult JSCF_Execute(
MWContext *mwcontext,
const char *script_name,
JSCFCookieData *data,
Bool *data_changed
);
/* runs the garbage collector on the filter context. Probably a good
idea to call on completion of NET_GetURL or something. */
extern void JSCF_Cleanup(void);
#endif /* _JSCOOKIE_H_ */

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*
* Header file for event passing between the mozilla thread and
* the mocha thread
*/
#ifndef libevent_h___
#define libevent_h___
#include "libmocha.h"
#include "prtypes.h"
#ifndef NSPR20
#include "prevent.h"
#else
#include "plevent.h"
#endif
#include "shist.h"
#include "fe_proto.h"
#include "lo_ele.h"
#include "jscookie.h"
NSPR_BEGIN_EXTERN_C
extern PREventQueue * mozilla_event_queue;
typedef struct WindowGroup LMWindowGroup;
/*
* XXX - should we use the same event values as layer events?
*/
/* Event bits stored in the low end of decoder->event_mask. */
#define EVENT_MOUSEDOWN 0x00000001
#define EVENT_MOUSEUP 0x00000002
#define EVENT_MOUSEOVER 0x00000004 /* user is mousing over a link */
#define EVENT_MOUSEOUT 0x00000008 /* user is mousing out of a link */
#define EVENT_MOUSEMOVE 0x00000010
#define EVENT_MOUSEDRAG 0x00000020
#define EVENT_CLICK 0x00000040 /* input element click in progress */
#define EVENT_DBLCLICK 0x00000080
#define EVENT_KEYDOWN 0x00000100
#define EVENT_KEYUP 0x00000200
#define EVENT_KEYPRESS 0x00000400
#define EVENT_DRAGDROP 0x00000800 /* not yet implemented */
#define EVENT_FOCUS 0x00001000 /* input focus event in progress */
#define EVENT_BLUR 0x00002000 /* loss of focus event in progress */
#define EVENT_SELECT 0x00004000 /* input field selection in progress */
#define EVENT_CHANGE 0x00008000 /* field value change in progress */
#define EVENT_RESET 0x00010000 /* form submit in progress */
#define EVENT_SUBMIT 0x00020000 /* form submit in progress */
#define EVENT_SCROLL 0x00040000 /* window is being scrolled */
#define EVENT_LOAD 0x00080000 /* layout parsed a loaded document */
#define EVENT_UNLOAD 0x00100000
#define EVENT_XFER_DONE 0x00200000 /* document has loaded */
#define EVENT_ABORT 0x00400000
#define EVENT_ERROR 0x00800000
#define EVENT_LOCATE 0x01000000
#define EVENT_MOVE 0x02000000
#define EVENT_RESIZE 0x04000000
#define EVENT_FORWARD 0x08000000
#define EVENT_HELP 0x10000000 /* for handling of help events */
#define EVENT_BACK 0x20000000
/* #define EVENT_PRINT 0x20000000 *//* To be removed per joki */
#define STATUS_STOP 0x00000001 /* stop processing */
#define STATUS_IGNORE 0x00000002 /* no new messages */
#define EVENT_ALT_MASK 0x00000001
#define EVENT_CONTROL_MASK 0x00000002
#define EVENT_SHIFT_MASK 0x00000004
#define EVENT_META_MASK 0x00000008
#define ARGTYPE_NULL 0x00000001
#define ARGTYPE_INT32 0x00000002
#define ARGTYPE_BOOL 0x00000004
#define ARGTYPE_STRING 0x00000008
#define SIZE_MAX 0x00000001
#define SIZE_MIN 0X00000002
/*
* When the event has been processed by the backend, there will be
* a front-end callback that gets called. If the event processed
* successfully, the callback will be passed EVENT_OK. If the
* event wasn't successful (i.e. the user canceled it) the return
* status will be EVENT_CANCEL. If something radical happened
* and the front-end should do nothing (i.e. mocha changed the
* underlying context) the status will be EVENT_PANIC and the
* front end should treat the context and element passed to the
* exit routine as bogus
*/
typedef enum {
EVENT_OK,
EVENT_CANCEL,
EVENT_PANIC
} ETEventStatus;
/*
* When a given event gets processed we may need to tell the front
* end about it so that they can update the UI / continue the
* operation. The context, lo_element, lType and whatever
* field are all supplied by the original ET_SendEvent() call.
* See ET_SendEvent() for a description of the values for
* the status parameter
*/
typedef void
(*ETClosureFunc)(MWContext * pContext, LO_Element * lo_element,
int32 lType, void * whatever, ETEventStatus status);
/*
* Someone has initiated a call to LM_EvaluateBuffer(). This function
* gets called back with the result
*/
typedef void
(*ETEvalAckFunc)(void * data, char * result_string, size_t result_length,
char * wysiwyg_url, char * base_href, Bool valid);
/*
* This function is called back after a layer's state has been restored
* in a resize_relayout.
*/
typedef void
(*ETRestoreAckFunc)(void * data, LO_BlockInitializeStruct *param);
/*
* Typedef for a function taking a void pointer and
* returning nothing
*/
typedef void
(*ETVoidPtrFunc)(void * data);
/*
* Typedef for a function taking a void pointer and
* returning a bool
*/
typedef PRBool
(*ETBoolPtrFunc)(void * data);
/*
* Typedef for a function taking a void pointer and
* returning a int32
*/
typedef int32
(*ETIntPtrFunc)(void * data);
/*
* Typedef for a function taking a void pointer and
* returning a char *
*/
typedef char *
(*ETStringPtrFunc)(void * data);
/*
* Struct for passing JS typed variable info through C interface calls
*/
typedef union ArgVal {
int32 intArg;
XP_Bool boolArg;
char * stringArg;
} ArgVal;
typedef struct {
uint8 type; /* arg type as defined at top of file */
ArgVal value;
} JSCompArg;
/*
* Typedef for a function used to verify installed components and
* get back components utility functions.
*/
typedef PRBool
(*ETVerifyComponentFunc)(void **active_callback, void **startup_callback);
/*
* Generic function for JS setting values with native calls.
*/
typedef void
(*ETCompPropSetterFunc)(char *name, void *value);
/*
* Generic function for JS getting values from native calls.
*/
typedef void*
(*ETCompPropGetterFunc)(char *name);
/*
* Generic function for JS calling native methods.
*/
typedef void*
(*ETCompMethodFunc)(int32 argc, JSCompArg *argv);
/* --------------------------------------------------------------------------
* Common prologue for talking between the mocha thread and the mozilla
* thread
*/
typedef struct {
PREvent event; /* the PREvent structure */
MWContext* context; /* context */
int32 doc_id; /* doc id of context when event launched */
PRPackedBool handle_eagerly;
} ETEvent;
/*
* Struct to send back from front end in order to get additional
* event information without having to initialize event object
* until necessary. Yow, there is a lot of junk in here now
* can we make a union out of some of these or are they always
* needed?
*/
typedef struct {
ETEvent ce;
MochaDecoder * decoder;
JSObject * object;
int32 type;
int32 layer_id;
int32 id;
LO_Element * lo_element;
ETClosureFunc fnClosure; /* event sender closure */
void * whatever; /* anything other state */
int32 x,y;
int32 docx,docy;
int32 screenx,screeny;
uint32 which;
uint32 modifiers;
void * data;
uint32 dataSize;
PRPackedBool saved;
PRPackedBool event_handled;
} JSEvent;
/*
* Tell the backend about a new event.
* The event is placed onto an event queue, it is not processed
* immediately. If the event is the type that can be cancelled
* by the backend (i.e. a button click or a submit) the front
* end must wait until the callback routine gets called before
* continuing with the operation. The ETEventStatus will be
* EVENT_OK if the operation is to continue or EVENT_CANCEL
* if it got cancelled.
*
* The processing of the event may cause the document to change
* or even the whole window to close. In those cases the callback
* will still get called in case there is any front-end cleanup
* to do but the ETEventStatus will be set to EVENT_PANIC
*
*/
extern JSBool
ET_SendEvent(MWContext * pContext, LO_Element *pElement, JSEvent *pEvent,
ETClosureFunc fnClosure, void * whatever);
/*
* Tell the backend about a new document load event. We need a
* closure so that libparse/layout knows when its safe to discard
* the old document when they were waiting for onunload events to
* finish processing
*/
extern void
ET_SendLoadEvent(MWContext * pContext, int32 type, ETVoidPtrFunc fnClosure,
NET_StreamClass *stream, int32 layer_id, Bool resize_reload);
/*
* Tell the backend about a new image event. Async. No closure
*/
extern void
ET_SendImageEvent(MWContext * pContext, LO_ImageStruct *image_data,
LM_ImageEvent event);
/*
* Send an interrupt event to the current context
* Remove all pending events for the event queue of the given context.
*/
extern void
ET_InterruptContext(MWContext * pContext);
extern JSBool
ET_ContinueProcessing(MWContext * pContext);
/*
* Tell mocha to destroy the given context's data. The callback
* function gets called when mocha is done with all of its data
* that was associated with the context
*/
extern void
ET_RemoveWindowContext(MWContext * context, ETVoidPtrFunc fn,
void * data);
typedef struct {
uint len, line_no;
char * scope_to;
void * data;
JSVersion version;
JSPrincipals * principals;
JSBool want_result;
JSBool unicode;
} ETEvalStuff;
/*
* Evaluate the mocha code in the given buffer
*/
extern void
ET_EvaluateBuffer(MWContext * context, char * buffer, uint buflen,
uint line_no, char * scope_to, JSBool want_result,
ETEvalAckFunc fn, void * data,
JSVersion ver, struct JSPrincipals *);
extern void
ET_EvaluateScript(MWContext * context, char * buffer, ETEvalStuff * stuff,
ETEvalAckFunc fn);
/*
* Ask Mocha to reflect the given object into JavaScript
*/
extern void
ET_ReflectObject(MWContext * pContext, void * lo_ele, void * tag,
int32 layer_id, uint index, ReflectedObject type);
void
ET_ReflectFormElement(MWContext * pContext, void * form,
LO_FormElementStruct * form_element, PA_Tag * tag);
extern void
ET_ReflectWindow(MWContext * pContext,
PA_Block onLoad, PA_Block onUnload,
PA_Block onFocus, PA_Block onBlur, PA_Block onHelp,
PA_Block onMouseOver, PA_Block onMouseOut, PA_Block onDragDrop,
PA_Block onMove, PA_Block onResize,
PA_Block id, char *all,
Bool bDelete, int newline_count);
/*
* Tell mocha we are processing a form
*/
extern void
ET_SetActiveForm(MWContext * pContext, struct lo_FormData_struct * loElement);
/*
* Tell mocha which layer we are processing
*/
void
ET_SetActiveLayer(MWContext * pContext, int32 layer_id);
/*
** Tell mocha where to send its output
*/
extern void
ET_ClearDecoderStream(MWContext * context, NET_StreamClass * old_stream);
extern void
ET_SetDecoderStream(MWContext * context, NET_StreamClass *stream,
URL_Struct *url_struct, JSBool free_stream_on_close);
/*
** Remember the current nesting URL in the MochaDecoder
*/
extern void
ET_SetNestingUrl(MWContext * context, char * szUrl);
/*
** Remember the current language version in the MochaDecoder
*/
extern void
ET_SetVersion(MWContext * context, JSVersion version);
/*
* Tell mocha to trash the current document. around and around...
*/
extern void
ET_ReleaseDocument(MWContext * pContext, JSBool resize_reload);
/*
* Tell mocha to trash the layer's document.
*/
extern void
ET_DestroyLayer(MWContext * pContext, JSObject *layer_obj);
extern void
ET_MochaStreamComplete(MWContext * context, void * buf, int len,
char * content_type, Bool isUnicode);
extern void
ET_MochaStreamAbort(MWContext * context, int status);
/*
* Called when a layer's contents are changing and we want to create
* a new layer document.
*/
extern void
ET_NewLayerDocument(MWContext *pContext, int32 layer_id);
extern void
ET_DocWriteAck(MWContext *pContext, int status);
extern void
ET_RegisterComponent(char *name, void *active_callback, void *startup_callback);
extern void
ET_RegisterComponentProp(char *comp, char *name, uint8 retType, void *setter,
void *getter);
extern void
ET_RegisterComponentMethod(char *comp, char *name, uint8 retType, void *method,
int32 argc);
/* =============================================================== */
/*
* This event can be sent to both the mozilla thread and the moacha thread
*/
typedef struct {
ETEvent ce;
TimeoutCallbackFunction fnCallback;
void* pClosure;
uint32 ulTime;
void* pTimerId;
} MozillaEvent_Timeout;
/* =============================================================== */
/*
* Busy loop waiting for events to come along
*/
extern void PR_CALLBACK
lm_wait_for_events(void *);
/*
* global mocha event queues. It would be nice to not have these
* exported this globally
*/
extern PREventQueue *lm_InterpretQueue;
extern PREventQueue *lm_PriorityQueue;
/*
* Ways to send events to the front end
*/
extern JSBool
ET_PostMessageBox(MWContext* context, char* szMessage,
JSBool bConfirm);
extern void
ET_PostProgress(MWContext* context, const char* szMessage);
/* --- timeout routines --- */
/*
* Set (or clear) a timeout to go off. The timeout will go off in the
* mozilla thread so we will use the routine ET_FireTimeoutCallBack()
* to get back into our thread to actually run the closure
*/
extern void *
ET_PostSetTimeout(TimeoutCallbackFunction fnCallback,
void * pClosure, uint32 ulTime, int32 doc_id);
extern void
ET_PostClearTimeout(void * stuff);
extern void
ET_FireTimeoutCallBack(void *);
/* --- end of timeout routines --- */
extern void
ET_PostDestroyWindow(MWContext * context);
extern void
ET_PostManipulateForm(MWContext * context, LO_Element * pForm, int32 action);
extern void
ET_PostClearView(MWContext * context);
extern void
ET_PostFreeImageElement(MWContext * context, void * stuff);
extern void
ET_PostFreeImageContext(MWContext *context, IL_GroupContext *img_cx);
extern void
ET_PostFreeAnonImages(MWContext *context, IL_GroupContext *img_cx);
extern void
ET_PostDisplayImage(MWContext *, int, LO_ImageStruct *);
extern void
ET_PostGetUrl(MWContext *, URL_Struct * pUrl);
extern char *
ET_PostPrompt(MWContext* context, const char* szMessage,
const char * szDefault);
extern MWContext *
ET_PostNewWindow(MWContext* context, URL_Struct * pUrl,
char * szName, Chrome * pChrome, LMWindowGroup *grp);
extern void
ET_PostUpdateChrome(MWContext* context, Chrome * pChrome);
extern void
ET_PostQueryChrome(MWContext* context, Chrome * pChrome);
extern void
ET_PostGetScreenSize(MWContext* context, int32 *pX, int32 *pY);
extern void
ET_PostGetAvailScreenRect(MWContext* context, int32 *pX, int32 *pY,
int32 *pLeft, int32 *pTop);
extern void
ET_PostGetColorDepth(MWContext* context, int32 *pPixel, int32 *pPallette);
extern char *
ET_PostGetSelectedText(MWContext* context);
extern void
ET_PostScrollDocTo(MWContext* context, int loc, int32 x, int32 y);
extern void
ET_PostScrollDocBy(MWContext* context, int loc, int32 x, int32 y);
extern void
ET_PostBackCommand(MWContext* context);
extern void
ET_PostForwardCommand(MWContext* context);
extern void
ET_PostHomeCommand(MWContext* context);
extern JSBool
ET_PostFindCommand(MWContext* context, char * szName, JSBool matchCase,
JSBool searchBackward);
extern void
ET_PostPrintCommand(MWContext* context);
extern void
ET_PostOpenFileCommand(MWContext* context);
extern void
ET_MakeHTMLAlert(MWContext * context, const char * szString);
/* respond to events sent to the mocha thread by the mozilla thread */
extern void
ET_PostJsEventAck(MWContext* context, LO_Element * pEle, int type,
ETClosureFunc fnClosure, void * pStuff,
ETEventStatus status);
extern void
ET_PostEvalAck(MWContext * context, int doc_id, void * data,
char * str, size_t len, char * wysiwyg_url,
char * base_href, Bool valid, ETEvalAckFunc fn);
extern void
ET_PostRestoreAck(void *data, LO_BlockInitializeStruct *param,
ETRestoreAckFunc fn);
/* netlib events */
extern char *
ET_net_GetCookie(MWContext* context, int32 doc_id);
extern char *
ET_net_SetCookieString(MWContext* context, char * szCookie, int32 doc_id);
extern NET_StreamClass *
ET_net_CacheConverter(FO_Present_Types format, void * obj,
URL_Struct *pUrl, MWContext * pContext);
extern void
ET_net_FindURLInCache(URL_Struct * pUrl, MWContext * pContext);
extern NET_StreamClass *
ET_net_StreamBuilder(FO_Present_Types format, URL_Struct *pUrl,
MWContext * pContext);
/* layout events */
extern void
ET_lo_ResetForm(MWContext * pContext, LO_Element * ele);
void
ET_fe_SubmitInputElement(MWContext * pContext, LO_Element * ele);
/*
* Synchronously shove the given text down the parser's processing
* queue. If the currently loaded document is not equal to
* doc_id, this message should be ignored since it arrived too
* late for the intended document
*/
extern int
ET_lo_DoDocWrite(JSContext *cx, MWContext * context, NET_StreamClass * stream,
char * str, size_t len, int32 doc_id);
extern void
ET_il_GetImage(const char * str, MWContext * pContext, IL_GroupContext *img_cx,
LO_ImageStruct * image_data, NET_ReloadMethod how);
extern void
ET_il_SetGroupObserver(MWContext * pContext, IL_GroupContext *pImgCX, void *pDpyCX,
JSBool bAddObserver);
extern void
ET_InterruptImgCX(MWContext * pContext);
/*
* Tell layout to trash the current document.
*/
extern void
ET_lo_DiscardDocument(MWContext * pContext);
/*
* Tell layout to prepare a layer for writing.
*/
extern Bool
ET_lo_PrepareLayerForWriting(MWContext *context, int32 layer_id,
const char *referer);
/*
* Return a copy of the current history element. Caller must free
*/
extern History_entry *
ET_shist_GetCurrent(MWContext * pContext);
/*
* Return the current security status.
*/
extern int
ET_GetSecurityStatus(MWContext * pContext);
/*
* Make sure Mocha/Java glue is ready. Returns the same return code as
* LM_InitMoja.
*/
extern int
ET_InitMoja(MWContext * pContext);
/*
* Pack up toys and go home
*/
extern void
ET_FinishMocha(void);
/*
* Used to call a stream completion function in the mozilla
* thread
*/
extern void
ET_moz_CallFunction(ETVoidPtrFunc fn, void * data);
extern void
ET_moz_CallFunctionAsync(ETVoidPtrFunc fn, void * data);
extern PRBool
ET_moz_CallFunctionBool(ETBoolPtrFunc fn, void * data);
extern int32
ET_moz_CallFunctionInt(ETIntPtrFunc fn, void * data);
extern char *
ET_moz_CallFunctionString(ETStringPtrFunc fn, void * data);
extern void
ET_moz_CallAsyncAndSubEventLoop(ETVoidPtrFunc fn, void *data,
MWContext *context);
extern void
ET_moz_Abort(MKStreamAbortFunc fn, void * data, int status);
extern void
ET_moz_SetMochaWriteStream(MochaDecoder * decoder);
extern NET_StreamClass *
ET_moz_DocCacheConverter(MWContext * context, URL_Struct * pUrl,
char * wysiwyg_url, int32 layer_id);
extern PRBool
ET_moz_VerifyComponentFunction(ETVerifyComponentFunc fn, ETBoolPtrFunc *pActive_callback,
ETVoidPtrFunc *pStartup_callback);
extern void
ET_moz_CompSetterFunction(ETCompPropSetterFunc fn, char *name, void *data);
extern void *
ET_moz_CompGetterFunction(ETCompPropGetterFunc fn, char *name);
extern void *
ET_moz_CompMethodFunction(ETCompMethodFunc fn, int32 argc, JSCompArg *argv);
typedef enum {
CL_Move,
CL_MoveX,
CL_MoveY,
CL_Offset,
CL_Resize,
CL_SetBboxWidth,
CL_SetBboxHeight,
CL_SetBboxTop,
CL_SetBboxLeft,
CL_SetBboxBottom,
CL_SetBboxRight,
CL_SetHidden,
CL_MoveInZ,
CL_SetSrc,
CL_SetSrcWidth,
CL_SetZ,
CL_SetBgColor,
CL_SetBackdrop
} ETLayerOp;
extern int
ET_TweakLayer(MWContext * context, CL_Layer * layer, int32 x, int32 y,
void *param_ptr, int32 param_val, ETLayerOp op,
const char *referer, int32 doc_id);
extern void
ET_RestoreLayerState(MWContext *context, int32 layer_id,
LO_BlockInitializeStruct *param, ETRestoreAckFunc fn,
void *data);
extern int32
ET_npl_RefreshPluginList(MWContext* context, XP_Bool refreshInstances);
extern JSCFResult
ET_JSCFExecute(MWContext *context, const char *script_name,
JSCFCookieData *data, Bool *data_changed);
extern JSBool
ET_HandlePref(JSContext * cx, uint argc, jsval * argv, jsval * rval);
extern void
ET_SetPluginWindow(MWContext * pContext, void * app);
NSPR_END_EXTERN_C
#endif /* libevent_h___ */

546
mozilla/include/libmocha.h Normal file
View File

@@ -0,0 +1,546 @@
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*
* Header file for Mocha in the Navigator (libmocha).
*/
#ifndef libmocha_h___
#define libmocha_h___
#include "ntypes.h"
#include "il_types.h"
#include "prtypes.h"
#include "plhash.h"
#include "prthread.h"
#include "jsapi.h"
/* enable JavaScript Debugger support */
#if defined (_WIN32) || defined(XP_UNIX) || defined(powerc) || defined(__powerc) || defined(XP_OS2)
#ifdef JAVA
#define JSDEBUGGER 1
#endif
#endif
NSPR_BEGIN_EXTERN_C
typedef struct JSTimeout JSTimeout;
typedef struct JSPrincipalsList JSPrincipalsList;
typedef struct JSNestingUrl JSNestingUrl;
/*
* There exists one MochaDecoder per top-level MWContext that decodes Mocha,
* either from an HTML page or from a "mocha:[expr]" URL.
*/
typedef struct MochaDecoder {
int32 forw_count; /* forward reference count */
int32 back_count; /* back (up the tree) count */
JSContext *js_context;
MWContext *window_context;
JSObject *window_object;
NET_StreamClass *stream;
int32 stream_owner; /* id of layer that's loading the stream */
URL_Struct *url_struct;
JSTimeout *timeouts;
JSTimeout *saved_timeouts;
uint16 signature_ordinal;
PRPackedBool replace_location;
PRPackedBool resize_reload;
PRPackedBool load_event_sent;
PRPackedBool visited;
PRPackedBool writing_input;
PRPackedBool free_stream_on_close;
PRPackedBool in_window_quota;
PRPackedBool called_win_close;
PRPackedBool principals_compromised;
const char *source_url;
JSNestingUrl *nesting_url;
uint32 error_count;
uint32 event_mask;
int32 active_layer_id;
uint32 active_form_id;
uint32 event_bit;
int32 doc_id;
/*
* Class prototype objects, in alphabetical order. Must be CLEARed (set
* to null) in LM_PutMochaDecoder, HELD (GC roots added) in lm_NewWindow,
* and DROPped (removed as GC roots) in lm_DestroyWindow.
* XXXbe clean up, clear via bzero, using a sub-structure.
*/
JSObject *anchor_prototype;
JSObject *bar_prototype;
JSObject *document_prototype;
JSObject *event_prototype;
JSObject *event_capturer_prototype;
JSObject *event_receiver_prototype;
JSObject *form_prototype;
JSObject *image_prototype;
JSObject *input_prototype;
JSObject *layer_prototype;
JSObject *option_prototype;
JSObject *rect_prototype;
JSObject *url_prototype;
/*
* Window sub-objects. These must also follow the CLEAR/HOLD/DROP
* protocol mentioned above.
*/
JSObject *document;
JSObject *history;
JSObject *location;
JSObject *navigator;
JSObject *components;
JSObject *screen;
JSObject *hardware;
JSObject *crypto;
JSObject *pkcs11;
/*
* Ad-hoc GC roots.
*/
JSObject *event_receiver;
JSObject *opener;
JSVersion firstVersion; /* First JS script tag version. */
/*
* Security info for all of this decoder's scripts, except those
* contained in layers.
*/
JSPrincipals *principals;
JSPrincipalsList*early_access_list;
IL_GroupContext *image_context; /* Image context for anonymous images */
/*
* Table that maintains an id to JS object mapping for reflected
* elements. This is used during resize to reestablish the connection
* between layout elements and their corresponding JS object.
* Form elements are special, since they can't use the same keying
*/
PRHashTable *id_to_object_map;
} MochaDecoder;
/*
* Number of buckets for the id-to-object hash table.
*/
#define LM_ID_TO_OBJ_MAP_SIZE 20
#define LM_FORM_ELEMENT_MAP_SIZE 10
/*
* Types of objects reflected into Mocha
*/
typedef enum {
LM_APPLETS = 0,
LM_FORMS,
LM_LINKS,
LM_NAMEDANCHORS,
LM_EMBEDS,
LM_IMAGES,
LM_FORMELEMENTS,
LM_LAYERS
} ReflectedObject;
/*
* Generates an id-to-object mapping key from the ReflectedObject
* type, the containing layer id and the id of the object itself.
* The key is 4 bits type, 14 bits layer_id and 14 bits id.
*/
#define LM_GET_MAPPING_KEY(obj_type, layer_id, id) \
(void *)(((((uint32)obj_type) << 28) & 0xF0000000UL) | \
((((uint32)layer_id) << 14) & 0x0FFFC000UL) | \
(((uint32)id) & 0x00003FFFUL))
/*
* Public, well-known string constants.
*/
extern char js_language_name[]; /* "JavaScript" */
extern char js_content_type[]; /* "application/x-javascript" */
/*
* Initialize and finalize Mocha-in-the-client.
*/
extern void LM_InitMocha(void);
extern void LM_FinishMocha(void);
/*
* Force mocha on in the given context, even if the user pref is set to
* disable mocha.
*/
extern void LM_ForceJSEnabled(MWContext *cx);
/*
* Initialize and finalize Mocha-Java connection
*/
#define LM_MOJA_UNINITIALIZED 0
#define LM_MOJA_OK 1
#define LM_MOJA_JAVA_FAILED 2
#define LM_MOJA_OUT_OF_MEMORY 3
extern int LM_InitMoja(void);
extern void LM_FinishMoja(void);
extern int LM_IsMojaInitialized(void);
/*
* Enter or leave the big mocha lock. Any thread which wants to
* preserve JavaScript run-to-completion semantics must bracket
* JavaScript evaluation with these calls.
*/
typedef void
(PR_CALLBACK *JSLockReleaseFunc)(void * data);
extern void PR_CALLBACK LM_LockJS(MWContext *mwc);
extern void PR_CALLBACK LM_UnlockJS(MWContext *mwc);
extern JSBool PR_CALLBACK LM_AttemptLockJS(MWContext *mwc,
JSLockReleaseFunc fn, void * data);
extern JSBool PR_CALLBACK LM_ClearAttemptLockJS(MWContext *mwc,
JSLockReleaseFunc fn,
void * data);
extern PRBool PR_CALLBACK
LM_HandOffJSLock(PRThread * oldOwner, PRThread *newOwner);
/*
* For interruption purposes we will sometimes need to know the
* context who is holding the JS lock
*/
extern void LM_JSLockSetContext(MWContext * context);
extern MWContext * LM_JSLockGetContext(MWContext *mwc);
/*
* Enable/disable for Mocha-in-the-client.
*/
#define LM_SwitchMocha(toggle) LM_SetMochaEnabled(toggle)
extern JSBool
LM_GetMochaEnabled(void);
/*
* Get (create if necessary) a MochaDecoder for context, adding a reference
* to its window_object. Put drops the reference, destroying window_object
* when the count reaches zero. These functions should only be called in
* the mocha thread or while holding the JS-lock
*/
extern MochaDecoder *
LM_GetMochaDecoder(MWContext *context);
extern void
LM_PutMochaDecoder(MochaDecoder *decoder);
/*
* Get the source URL for script being loaded by document. This URL will be
* the document's URL for inline script, or the SRC= URL for included script.
* The returned pointer is safe only within the extent of the function that
* calls LM_GetSourceURL().
*/
extern const char *
LM_GetSourceURL(MochaDecoder *decoder);
/*
* Set the current layer and hence the current scope for script evaluation.
*/
extern void
LM_SetActiveLayer(MWContext * context, int32 layer_id);
/*
* Get the current layer and hence the current scope for script evaluation.
*/
extern int32
LM_GetActiveLayer(MWContext * context);
/*
* Evaluate the contents of a SCRIPT tag. You can specify the JSObject
* to use as the base scope. Pass NULL to use the default window_object
*/
extern JSBool
LM_EvaluateBuffer(MochaDecoder *decoder, void *base, size_t length,
uint lineno, char * scope_to, struct JSPrincipals *principals,
JSBool unicode, jsval *result);
/*
* Evaluate an expression entity in an HTML attribute (WIDTH="&{height/2};").
* Returns null on error, otherwise a pointer to the malloc'd string result.
* The caller is responsible for freeing the string result.
*/
extern char *
LM_EvaluateAttribute(MWContext *context, char *expr, uint lineno);
/*
* Remove any MochaDecoder window_context pointer to an MWContext that's
* being destroyed.
*/
extern void
LM_RemoveWindowContext(MWContext *context, History_entry * he);
extern void
LM_DropSavedWindow(MWContext *context, void *window);
/*
* Set and clear the HTML stream and URL for the MochaDecoder
* associated with the given context
*/
extern JSBool
LM_SetDecoderStream(MWContext * context, NET_StreamClass *stream,
URL_Struct *url_struct, JSBool free_stream_on_close);
/*
* Start caching HTML or plain text generated by document.write() where the
* script is running on mc, the document is being generated into decoder's
* window, and url_struct tells about the generator.
*/
extern NET_StreamClass *
LM_WysiwygCacheConverter(MWContext *context, URL_Struct *url_struct,
const char * wysiwyg_url, const char * base_href);
/*
* Skip over the "wysiwyg://docid/" in url_string and return a pointer to the
* real URL hidden after the prefix. If url_string is not of "wysiwyg:" type,
* just return url_string. Never returns null.
*/
extern const char *
LM_StripWysiwygURLPrefix(const char *url_string);
/*
* This function works only on "wysiwyg:" type URLs -- don't call it unless
* you know that NET_URL_Type(url_string) is WYSIWYG_TYPE_URL. It'll return
* null if url_string seems too short, or if it can't find the third slash.
*/
extern const char *
LM_SkipWysiwygURLPrefix(const char *url_string);
/*
* Return a pointer to a malloc'd string of the form "<BASE HREF=...>" where
* the "..." URL is the directory of cx's origin URL. Such a base URL is the
* default base for relative URLs in generated HTML.
*/
extern char *
LM_GetBaseHrefTag(JSContext *cx, JSPrincipals *principals);
/*
* XXX Make these public LO_... typedefs in lo_ele.h/ntypes.h?
*/
struct lo_FormData_struct;
struct lo_NameList_struct;
extern struct lo_FormData_struct *
LO_GetFormDataByID(MWContext *context, int32 layer_id, intn form_id);
extern uint
LO_EnumerateForms(MWContext *context, int32 layer_id);
extern struct LO_ImageStruct_struct *
LO_GetImageByIndex(MWContext *context, int32 layer_id, intn image_id);
extern uint
LO_EnumerateImages(MWContext *context, int32 layer_id);
/*
* Reflect display layers into Mocha.
*/
extern JSObject *
LM_ReflectLayer(MWContext *context, int32 layer_id, int32 parent_layer_id,
PA_Tag *tag);
extern LO_FormElementStruct *
LO_GetFormElementByIndex(struct lo_FormData_struct *form_data, int32 index);
extern uint
LO_EnumerateFormElements(MWContext *context,
struct lo_FormData_struct *form_data);
/*
* Layout helper function to find a named anchor by its index in the
* document.anchors[] array.
*/
extern struct lo_NameList_struct *
LO_GetNamedAnchorByIndex(MWContext *context, int32 layer_id, uint index);
extern uint
LO_EnumerateNamedAnchors(MWContext *context, int32 layer_id);
/*
* Layout Mocha helper function to find an HREF Anchor by its index in the
* document.links[] array.
*/
extern LO_AnchorData *
LO_GetLinkByIndex(MWContext *context, int32 layer_id, uint index);
extern uint
LO_EnumerateLinks(MWContext *context, int32 layer_id);
extern LO_JavaAppStruct *
LO_GetAppletByIndex(MWContext *context, int32 layer_id, uint index);
extern uint
LO_EnumerateApplets(MWContext *context, int32 layer_id);
extern LO_EmbedStruct *
LO_GetEmbedByIndex(MWContext *context, int32 layer_id, uint index);
extern uint
LO_EnumerateEmbeds(MWContext *context, int32 layer_id);
/*
* Get and set a color attribute in the current document state.
*/
extern void
LO_GetDocumentColor(MWContext *context, int type, LO_Color *color);
extern void
LO_SetDocumentColor(MWContext *context, int type, LO_Color *color);
/*
* Layout function to reallocate the lo_FormElementOptionData array pointed at
* by lo_FormElementSelectData's options member to include space for the number
* of options given by selectData->option_cnt.
*/
extern XP_Bool
LO_ResizeSelectOptions(lo_FormElementSelectData *selectData);
/*
* Discard the current document and all its subsidiary objects.
*/
extern void
LM_ReleaseDocument(MWContext *context, JSBool resize_reload);
/*
* Search if a the event is being captured in the frame hierarchy.
*/
extern XP_Bool
LM_EventCaptureCheck(MWContext *context, uint32 current_event);
/*
* Scroll a window to the given point.
*/
extern void LM_SendOnScroll(MWContext *context, int32 x, int32 y);
/*
* Display a help topic.
*/
extern void LM_SendOnHelp(MWContext *context);
/*
* Send a load or abort event for an image to a callback.
*/
typedef enum LM_ImageEvent {
LM_IMGUNBLOCK = 0,
LM_IMGLOAD = 1,
LM_IMGABORT = 2,
LM_IMGERROR = 3,
LM_LASTEVENT = 3
} LM_ImageEvent;
extern void
LM_ProcessImageEvent(MWContext *context, LO_ImageStruct *image_data,
LM_ImageEvent event);
/* This should be called when a named anchor is located. */
extern JSBool
LM_SendOnLocate(MWContext *context, struct lo_NameList_struct *name_rec);
extern JSObject *
LM_ReflectApplet(MWContext *context, LO_JavaAppStruct *applet_data,
PA_Tag * tag, int32 layer_id, uint index);
extern JSObject *
LM_ReflectEmbed(MWContext *context, LO_EmbedStruct *lo_embed,
PA_Tag * tag, int32 layer_id, uint index);
struct lo_FormData_struct;
struct lo_NameList_struct;
extern JSObject *
LM_ReflectForm(MWContext *context, struct lo_FormData_struct *form_data,
PA_Tag * tag, int32 layer_id, uint index);
extern JSObject *
LM_ReflectFormElement(MWContext *context, int32 layer_id, int32 form_id,
int32 element_id, PA_Tag * tag);
extern JSObject *
LM_ReflectLink(MWContext *context, LO_AnchorData *anchor_data, PA_Tag * tag,
int32 layer_id, uint index);
extern JSObject *
LM_ReflectNamedAnchor(MWContext *context, struct lo_NameList_struct *name_rec,
PA_Tag * tag, int32 layer_id, uint index);
extern JSObject *
LM_ReflectImage(MWContext *context, LO_ImageStruct *image_data,
PA_Tag * tag, int32 layer_id, uint index);
extern JSBool
LM_CanDoJS(MWContext *context);
extern JSBool
LM_IsActive(MWContext *context);
/*
* Security.
*/
extern JSPrincipals *
LM_NewJSPrincipals(URL_Struct *archive, char *name, const char *codebase);
extern char *
LM_ExtractFromPrincipalsArchive(JSPrincipals *principals, char *name,
uint *length);
extern JSBool
LM_SetUntransformedSource(JSPrincipals *principals, char *original,
char *transformed);
extern JSPrincipals * PR_CALLBACK
LM_GetJSPrincipalsFromJavaCaller(JSContext *cx, int callerDepth);
/*
* LM_RegisterPrincipals will verify and register a set of principals
* in the decoder, modifying decoder->principals in the process. It
* returns the modified decoder.
*
* The "name" parameter may be NULL if "principals" was created with a name.
*/
extern JSPrincipals *
LM_RegisterPrincipals(MochaDecoder *decoder, JSPrincipals *principals,
char *name, char *src);
/*
* JavaScript Debugger support
*/
#ifdef JSDEBUGGER
extern NET_StreamClass*
LM_StreamBuilder( int format_out,
void *data_obj,
URL_Struct *URL_s,
MWContext *mwcontext );
extern JSBool
LM_GetJSDebugActive(void);
extern void
LM_JamSourceIntoJSDebug( const char *filename,
const char *str,
int32 len,
MWContext *mwcontext );
#endif
NSPR_END_EXTERN_C
#endif /* libmocha_h___ */

View File

@@ -1,44 +0,0 @@
STLPORT = /usr/local/include/stlport
CC = gcc
CFLAGS = -g -ggdb -DDEBUG -DXP_UNIX -Wall -W -Wpointer-arith \
-Wbad-function-cast -Wstrict-prototypes -Wmissing-prototypes \
-Wno-non-virtual-dtor -I$(STLPORT)
objs = hash.o \
icodegenerator.o \
interpreter.o \
js2.o \
jsmath.o \
jstypes.o \
numerics.o \
parser.o \
utilities.o \
world.o \
vmtypes.o \
debugger.o
gc_path = ../../gc/boehm/
libs = gc.a -lstdc++ -lm
%.o : %.cpp
$(CC) -c $(CFLAGS) $< -o $@
js2: $(objs) gc.a
$(CC) -o $@ -ggdb $(objs) $(libs)
gc.a:
(cd $(gc_path) ; ln -f -s Makefile.unix Makefile ; make gc.a)
ln -f -s $(gc_path)gc.a ./gc.a
gctest: gc_allocator.o
$(CC) -o $@ -ggdb $^ $(libs)
clean:
rm -f $(objs)
depend:
gcc -MM *.cpp > dependencies
include dependencies

View File

@@ -1,111 +0,0 @@
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View File

@@ -1,29 +0,0 @@
Microsoft Developer Studio Workspace File, Format Version 6.00
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View File

@@ -1,129 +0,0 @@
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <new>
using namespace std;
struct Arena {
const char *name;
Arena(const char *name): name(name) {}
};
void *operator new(size_t size, Arena &arena);
void operator delete(void *p);
void *operator new(size_t size, Arena &arena)
{
void *p = malloc(size);
printf("Allocating %d bytes at %p using arena \"%s\"\n", size, p, arena.name);
return p;
}
#ifndef __MWERKS__
void operator delete(void *p, Arena &arena)
{
printf("Deleting object at %p using arena \"%s\"\n", p, arena.name);
}
#endif
void operator delete(void *p)
{
printf("Deleting object at %p\n", p);
}
struct C {
int n;
C(int n, bool bad = false);
~C();
};
struct Exception {
int num;
explicit Exception(int n): num(n) {}
};
C::C(int n, bool bad): n(n)
{
printf("Constructing C #%d at %p\n", n, this);
if (bad) {
printf("Throwing %d; constructor aborted\n", n);
throw Exception(n);
}
}
C::~C()
{
printf("Destroying C #%d at %p\n", n, this);
}
static void constructorTest1(int n, bool bad)
{
try {
printf("Calling C(%d,%d)\n", n, (int)bad);
{
C c(n, bad);
printf("We have C #%d\n", c.n);
}
printf("C is out of scope\n");
} catch (Exception &e) {
printf("Caught exception %d\n", e.num);
}
printf("\n");
}
static void constructorTest2(int n, bool bad)
{
try {
printf("Calling new C(%d,%d)\n", n, (int)bad);
{
C *c = new C(n, bad);
printf("We have C #%d\n", c->n);
delete c;
}
printf("C is out of scope\n");
} catch (Exception &e) {
printf("Caught exception %d\n", e.num);
}
printf("\n");
}
static void constructorTest3(int n, bool bad)
{
try {
printf("Calling new(arena) C(%d,%d)\n", n, (int)bad);
{
Arena arena("My arena");
C *c = new(arena) C(n, bad);
printf("We have C #%d\n", c->n);
}
printf("C is out of scope\n");
} catch (Exception &e) {
printf("Caught exception %d\n", e.num);
}
printf("\n");
}
int main()
{
printf("Beginning constructor tests\n\n");
constructorTest1(1, false);
constructorTest1(2, true);
constructorTest2(3, false);
constructorTest2(4, true);
constructorTest3(5, false);
constructorTest3(6, true);
printf("Ending constructor tests\n");
return 0;
}

View File

@@ -1,191 +0,0 @@
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef cpucfg_h
#define cpucfg_h
#define JS_HAVE_LONG_LONG
#ifdef XP_MAC
#undef IS_LITTLE_ENDIAN
#define IS_BIG_ENDIAN 1
#define JS_BYTES_PER_BYTE 1L
#define JS_BYTES_PER_SHORT 2L
#define JS_BYTES_PER_INT 4L
#define JS_BYTES_PER_INT64 8L
#define JS_BYTES_PER_LONG 4L
#define JS_BYTES_PER_FLOAT 4L
#define JS_BYTES_PER_DOUBLE 8L
#define JS_BYTES_PER_WORD 4L
#define JS_BYTES_PER_DWORD 8L
#define JS_BITS_PER_BYTE 8L
#define JS_BITS_PER_SHORT 16L
#define JS_BITS_PER_INT 32L
#define JS_BITS_PER_INT64 64L
#define JS_BITS_PER_LONG 32L
#define JS_BITS_PER_FLOAT 32L
#define JS_BITS_PER_DOUBLE 64L
#define JS_BITS_PER_WORD 32L
#define JS_BITS_PER_BYTE_LOG2 3L
#define JS_BITS_PER_SHORT_LOG2 4L
#define JS_BITS_PER_INT_LOG2 5L
#define JS_BITS_PER_INT64_LOG2 6L
#define JS_BITS_PER_LONG_LOG2 5L
#define JS_BITS_PER_FLOAT_LOG2 5L
#define JS_BITS_PER_DOUBLE_LOG2 6L
#define JS_BITS_PER_WORD_LOG2 5L
#define JS_ALIGN_OF_SHORT 2L
#define JS_ALIGN_OF_INT 4L
#define JS_ALIGN_OF_LONG 4L
#define JS_ALIGN_OF_INT64 2L
#define JS_ALIGN_OF_FLOAT 4L
#define JS_ALIGN_OF_DOUBLE 4L
#define JS_ALIGN_OF_POINTER 4L
#define JS_ALIGN_OF_WORD 4L
#define JS_BYTES_PER_WORD_LOG2 2L
#define JS_BYTES_PER_DWORD_LOG2 3L
#define PR_WORDS_PER_DWORD_LOG2 1L
#elif defined(XP_PC)
#ifdef _WIN32
#define IS_LITTLE_ENDIAN 1
#undef IS_BIG_ENDIAN
#define JS_BYTES_PER_BYTE 1L
#define JS_BYTES_PER_SHORT 2L
#define JS_BYTES_PER_INT 4L
#define JS_BYTES_PER_INT64 8L
#define JS_BYTES_PER_LONG 4L
#define JS_BYTES_PER_FLOAT 4L
#define JS_BYTES_PER_DOUBLE 8L
#define JS_BYTES_PER_WORD 4L
#define JS_BYTES_PER_DWORD 8L
#define JS_BITS_PER_BYTE 8L
#define JS_BITS_PER_SHORT 16L
#define JS_BITS_PER_INT 32L
#define JS_BITS_PER_INT64 64L
#define JS_BITS_PER_LONG 32L
#define JS_BITS_PER_FLOAT 32L
#define JS_BITS_PER_DOUBLE 64L
#define JS_BITS_PER_WORD 32L
#define JS_BITS_PER_BYTE_LOG2 3L
#define JS_BITS_PER_SHORT_LOG2 4L
#define JS_BITS_PER_INT_LOG2 5L
#define JS_BITS_PER_INT64_LOG2 6L
#define JS_BITS_PER_LONG_LOG2 5L
#define JS_BITS_PER_FLOAT_LOG2 5L
#define JS_BITS_PER_DOUBLE_LOG2 6L
#define JS_BITS_PER_WORD_LOG2 5L
#define JS_ALIGN_OF_SHORT 2L
#define JS_ALIGN_OF_INT 4L
#define JS_ALIGN_OF_LONG 4L
#define JS_ALIGN_OF_INT64 8L
#define JS_ALIGN_OF_FLOAT 4L
#define JS_ALIGN_OF_DOUBLE 4L
#define JS_ALIGN_OF_POINTER 4L
#define JS_ALIGN_OF_WORD 4L
#define JS_BYTES_PER_WORD_LOG2 2L
#define JS_BYTES_PER_DWORD_LOG2 3L
#define PR_WORDS_PER_DWORD_LOG2 1L
#endif /* _WIN32 */
#if defined(_WINDOWS) && !defined(_WIN32) /* WIN16 */
#define IS_LITTLE_ENDIAN 1
#undef IS_BIG_ENDIAN
#define JS_BYTES_PER_BYTE 1L
#define JS_BYTES_PER_SHORT 2L
#define JS_BYTES_PER_INT 2L
#define JS_BYTES_PER_INT64 8L
#define JS_BYTES_PER_LONG 4L
#define JS_BYTES_PER_FLOAT 4L
#define JS_BYTES_PER_DOUBLE 8L
#define JS_BYTES_PER_WORD 4L
#define JS_BYTES_PER_DWORD 8L
#define JS_BITS_PER_BYTE 8L
#define JS_BITS_PER_SHORT 16L
#define JS_BITS_PER_INT 16L
#define JS_BITS_PER_INT64 64L
#define JS_BITS_PER_LONG 32L
#define JS_BITS_PER_FLOAT 32L
#define JS_BITS_PER_DOUBLE 64L
#define JS_BITS_PER_WORD 32L
#define JS_BITS_PER_BYTE_LOG2 3L
#define JS_BITS_PER_SHORT_LOG2 4L
#define JS_BITS_PER_INT_LOG2 4L
#define JS_BITS_PER_INT64_LOG2 6L
#define JS_BITS_PER_LONG_LOG2 5L
#define JS_BITS_PER_FLOAT_LOG2 5L
#define JS_BITS_PER_DOUBLE_LOG2 6L
#define JS_BITS_PER_WORD_LOG2 5L
#define JS_ALIGN_OF_SHORT 2L
#define JS_ALIGN_OF_INT 2L
#define JS_ALIGN_OF_LONG 2L
#define JS_ALIGN_OF_INT64 2L
#define JS_ALIGN_OF_FLOAT 2L
#define JS_ALIGN_OF_DOUBLE 2L
#define JS_ALIGN_OF_POINTER 2L
#define JS_ALIGN_OF_WORD 2L
#define JS_BYTES_PER_WORD_LOG2 2L
#define JS_BYTES_PER_DWORD_LOG2 3L
#define PR_WORDS_PER_DWORD_LOG2 1L
#endif /* defined(_WINDOWS) && !defined(_WIN32) */
#elif defined(XP_UNIX) || defined(XP_BEOS)
#error "This file is supposed to be auto-generated on UNIX platforms, but the"
#error "static version for Mac and Windows platforms is being used."
#error "Something's probably wrong with paths/headers/dependencies/Makefiles."
#else
#error "Must define one of XP_MAC, XP_PC, or XP_UNIX"
#endif
#endif

View File

@@ -1,466 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#include "world.h"
#include "debugger.h"
#include <string>
#include <ctype.h>
#include <assert.h>
namespace JavaScript {
namespace Debugger {
using namespace Interpreter;
/* keep in sync with list in debugger.h */
static const char *shell_cmds[][3] = {
{"assemble", "", 0},
{"ambiguous", "", "Test command for ambiguous command detection"},
{"ambiguous2", "", "Test command for ambiguous command detection"},
{"continue", "", "Continue execution until complete."},
{"dissassemble", "[start_pc] [end_pc]", "Dissassemble entire module, or subset of module."},
{"exit", "", 0},
{"help", "", "Display this message."},
{"istep", "", "Execute the current opcode and stop."},
{"let", "", "Set a debugger environment variable."},
{"print", "", 0},
{"register", "", "(nyi) Show the value of a single register or all registers, or set the value of a single register."},
{"step", "", "Execute the current JS statement and stop."},
{0, 0} /* sentry */
};
enum ShellVariable {
TRACE_SOURCE,
TRACE_ICODE,
VARIABLE_COUNT
};
static const char *shell_vars[][3] = {
{"tracesource", "", "(bool) Show JS source while executing."},
{"traceicode", " ", "(bool) Show opcodes while executing."},
{0, 0} /* sentry */
};
/* return true if str2 starts with/is str1
* XXX ignore case */
static bool
startsWith (const String &str1, const String &str2)
{
uint n;
size_t m = str1.size();
if (m > str2.size())
return false;
for (n = 0; n < m; ++n)
if (str1[n] != str2[n])
return false;
return true;
}
/**
* locate the best match for |partial| in the command list |list|.
* if no matches are found, return |length|, if multiple matches are found,
* return |length| plus the number of ambiguous matches
*/
static uint32
matchElement (const String &partial, const char *list[][3], size_t length)
{
uint32 ambig_matches = 0;
uint32 match = length;
for (uint32 i = 0; i < length ; ++i)
{
String possibleMatch (widenCString(list[i][0]));
if (startsWith(partial, possibleMatch))
{
if (partial.size() == possibleMatch.size())
{
/* exact match */
ambig_matches = 0;
return i;
}
else if (match == COMMAND_COUNT) /* no match yet */
match = i;
else
++ambig_matches; /* something already matched,
* ambiguous command */
}
}
if (ambig_matches == 0)
return match;
else
return length + ambig_matches;
}
static void
showHelp(Formatter &out)
{
int i;
out << "JavaScript 2.0 Debugger Help...\n\n";
for (i = 0; shell_cmds[i][0] != 0; i++)
{
out << "Command : " << shell_cmds[i][0] << " " <<
shell_cmds[i][1] << "\n";
if (shell_cmds[i][2])
out << "Help : " << shell_cmds[i][2] << "\n";
else
out << "Help : (probably) Not Implemented.\n";
}
}
static uint32
getClosestSourcePosForPC (Context *cx, InstructionIterator pc)
{
ICodeModule *iCode = cx->getICode();
if (iCode->mInstructionMap->begin() == iCode->mInstructionMap->end())
return NotABanana;
/*NOT_REACHED ("Instruction map is empty, waah.");*/
InstructionMap::iterator pos_iter =
iCode->mInstructionMap->upper_bound (pc - iCode->its_iCode->begin());
if (pos_iter != iCode->mInstructionMap->begin())
--pos_iter;
return pos_iter->second;
}
void
Shell::showSourceAtPC (Context *cx, InstructionIterator pc)
{
if (!mResolveFileCallback)
{
mErr << "Source not available (Debugger was improperly initialized.)\n";
return;
}
ICodeModule *iCode = cx->getICode();
String fn = iCode->getFileName();
const Reader *reader = mResolveFileCallback(fn);
if (!reader)
{
mErr << "Source not available.\n";
return;
}
uint32 pos = getClosestSourcePosForPC(cx, pc);
if (pos == NotABanana)
{
mErr << "Map is empty, cannot display source.\n";
return;
}
uint32 lineNum = reader->posToLineNum (pos);
const char16 *lineBegin, *lineEnd;
uint32 lineStartPos = reader->getLine (lineNum, lineBegin, lineEnd);
String sourceLine (lineBegin, lineEnd);
mOut << fn << ":" << lineNum << " " << sourceLine << "\n";
uint padding = fn.length() + (uint32)(lineNum / 10) + 3;
uint i;
for (i = 0; i < padding; i++)
mOut << " ";
padding = (pos - lineStartPos);
for (i = 0; i < padding; i++)
mOut << ".";
mOut << "^\n";
}
void
Shell::showOpAtPC(Context* cx, InstructionIterator pc)
{
ICodeModule *iCode = cx->getICode();
if ((pc < iCode->its_iCode->begin()) ||
(pc >= iCode->its_iCode->end()))
{
mErr << "PC Out Of Range.";
return;
}
JSValues &registers = cx->getRegisters();
printFormat(mOut, "trace [%02u:%04u]: ",
iCode->mID, (pc - iCode->its_iCode->begin()));
Instruction* i = *pc;
stdOut << *i;
if (i->op() != BRANCH && i->count() > 0) {
mOut << " [";
i->printOperands(stdOut, registers);
mOut << "]\n";
} else {
mOut << '\n';
}
}
void
Shell::listen(Context* cx, Context::Event event)
{
InstructionIterator pc = cx->getPC();
if (mTraceSource)
showSourceAtPC (cx, pc);
if (mTraceICode)
showOpAtPC (cx, pc);
if (!(mStopMask & event))
return;
if ((mLastCommand == STEP) && (mLastICodeID == cx->getICode()->mID) &&
(mLastSourcePos == getClosestSourcePosForPC (cx, cx->getPC())))
/* we're in source-step mode, and the source position hasn't
* changed yet */
return;
if (!mTraceSource && !mTraceICode)
showSourceAtPC (cx, pc);
static String lastLine(widenCString("help\n"));
String line;
LineReader reader(mIn);
do {
stdOut << "jsd";
if (mLastCommand != COMMAND_COUNT)
stdOut << " (" << shell_cmds[mLastCommand][0] << ") ";
stdOut << "> ";
reader.readLine(line);
if (line[0] == uni::lf)
line = lastLine;
else
lastLine = line;
} while (doCommand(cx, line));
}
/**
* lex and execute the debugger command in |source|, return true if the
* command does not require the script being debugged to continue (eg, ask
* for more debugger input.)
*/
bool
Shell::doCommand (Interpreter::Context *cx, const String &source)
{
Lexer lex (mWorld, source, widenCString("debugger console"), 0);
const String *cmd;
uint32 match;
bool rv = true;
const Token &t = lex.get(true);
if (t.hasKind(Token::identifier))
cmd = &(t.getIdentifier());
else
{
mErr << "you idiot.\n";
return true;
}
match = matchElement (*cmd, shell_cmds, (size_t)COMMAND_COUNT);
if (match <= (uint32)COMMAND_COUNT)
{
switch ((ShellCommand)match)
{
case COMMAND_COUNT:
mErr << "Unknown command '" << *cmd << "'.\n";
break;
case AMBIGUOUS:
case AMBIGUOUS2:
mErr << "I pity the foogoo.\n";
break;
case CONTINUE:
mStopMask &= (Context::EV_ALL ^ Context::EV_STEP);
rv = false;
break;
case DISSASSEMBLE:
mOut << *cx->getICode();
break;
case HELP:
showHelp (mOut);
break;
case PRINT:
doPrint (cx, lex);
break;
case STEP:
mStopMask |= Context::EV_STEP;
rv = false;
break;
case LET:
doSetVariable (lex);
break;
default:
mErr << "Input '" << *cmd << "' matched unimplemented " <<
"command '" << shell_cmds[match][0] << "'.\n";
break;
}
mLastSourcePos = getClosestSourcePosForPC (cx, cx->getPC());
mLastICodeID = cx->getICode()->mID;
mLastCommand = (ShellCommand)match;
} else
mErr << "Ambiguous command '" << *cmd << "', " <<
(match - (uint32)COMMAND_COUNT + 1) << " similar commands.\n";
return rv;
}
void
Shell::doSetVariable (Lexer &lex)
{
uint32 match;
const String *varname;
const Token *t = &(lex.get(true));
if (t->hasKind(Token::identifier))
varname = &(t->getIdentifier());
else
{
mErr << "invalid variable name.\n";
return;
}
match = matchElement (*varname, shell_vars, (size_t)VARIABLE_COUNT);
if (match <= (uint32)VARIABLE_COUNT)
switch ((ShellVariable)match)
{
case VARIABLE_COUNT:
mErr << "Unknown variable '" << *varname << "'.\n";
break;
case TRACE_SOURCE:
t = &(lex.get(true));
if (t->hasKind(Token::assignment))
t = &(lex.get(true)); /* optional = */
if (t->hasKind(Token::True))
mTraceSource = true;
else if (t->hasKind(Token::False))
mTraceSource = false;
else
goto badval;
break;
case TRACE_ICODE:
t = &(lex.get(true));
if (t->hasKind(Token::assignment))
t = &(lex.get(true)); /* optional = */
if (t->hasKind(Token::True))
mTraceICode = true;
else if (t->hasKind(Token::False))
mTraceICode = false;
else
goto badval;
break;
default:
mErr << "Variable '" << *varname <<
"' matched unimplemented variable '" <<
shell_vars[match][0] << "'.\n";
}
else
mErr << "Ambiguous variable '" << *varname << "', " <<
(match - (uint32)COMMAND_COUNT + 1) << " similar variables.\n";
return;
badval:
mErr << "Invalid value for variable '" <<
shell_vars[(ShellVariable)match][0] << "'\n";
}
void
Shell::doPrint (Context *, Lexer &lex)
{
const Token *t = &(lex.get(true));
if (!(t->hasKind(Token::identifier)))
{
mErr << "Invalid register name.\n";
return;
}
/*
const StringAtom *name = &(t->getIdentifier());
VariableMap::iterator i = ((cx->getICode())->itsVariables)->find(*name);
// if (i)
mOut << (*i).first << " = " << (*i).second << "\n";
// else
// mOut << "No " << *name << " defined.\n";
*/
}
} /* namespace Debugger */
} /* namespace JavaScript */

View File

@@ -1,163 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/* this is all vapor, don't take it to serious yet */
#ifndef debugger_h
#define debugger_h
#include "utilities.h"
#include "interpreter.h"
#include <stdio.h>
namespace JavaScript {
namespace Debugger {
using namespace Interpreter;
class Shell;
typedef const Reader *ResolveFileCallback (const String &fileName);
typedef bool DebuggerCommandCallback (Shell &debugger, const Lexer &lex);
class Breakpoint {
public:
/* representation of a breakpoint */
void set();
void clear();
bool getState();
InstructionIterator getPC();
};
struct DebuggerCommand
{
DebuggerCommand(String aName, String aParamDesc, String aShortHelp,
String aLongHelp = widenCString("No more help available."),
DebuggerCommandCallback *aCommandFunction = 0)
: mName(aName), mParamDesc(aParamDesc), mShortHelp(aShortHelp),
mLongHelp(aLongHelp), mCommandFunction(aCommandFunction) {}
String mName;
String mParamDesc;
String mShortHelp;
String mLongHelp;
DebuggerCommandCallback *mCommandFunction;
};
/* keep in sync with list in debugger.cpp */
enum ShellCommand {
ASSEMBLE,
AMBIGUOUS,
AMBIGUOUS2,
CONTINUE,
DISSASSEMBLE,
EXIT,
HELP,
ISTEP,
LET,
PRINT,
REGISTER,
STEP,
COMMAND_COUNT
};
class Shell : public Context::Listener {
public:
Shell (World &aWorld, FILE *aIn, Formatter &aOut, Formatter &aErr,
ResolveFileCallback *aCallback = 0) :
mWorld(aWorld), mIn(aIn), mOut(aOut), mErr(aErr),
mResolveFileCallback(aCallback), mStopMask(Context::EV_DEBUG),
mTraceSource(false), mTraceICode(false), mLastSourcePos(0),
mLastICodeID(NotABanana), mLastCommand(COMMAND_COUNT)
{
}
~Shell ()
{
}
ResolveFileCallback
*setResolveFileCallback (ResolveFileCallback *aCallback)
{
ResolveFileCallback *rv = mResolveFileCallback;
mResolveFileCallback = aCallback;
return rv;
}
void listen(Context *context, Context::Event event);
/**
* install on a context
*/
bool attachToContext (Context *aContext)
{
aContext->addListener (this);
return true;
}
/**
* detach an icdebugger from a context
*/
bool detachFromContext (Context *aContext)
{
aContext->removeListener (this);
return true;
}
FILE *getIStream() { return mIn; }
Formatter &getOStream() { return mOut; }
Formatter &getEStream() { return mErr; }
private:
bool doCommand (Context *cx, const String &aSource);
void doSetVariable (Lexer &lex);
void doPrint (Context *cx, Lexer &lex);
void showOpAtPC(Context* cx, InstructionIterator pc);
void showSourceAtPC(Context* cx, InstructionIterator pc);
World &mWorld;
FILE *mIn;
Formatter &mOut, &mErr;
ResolveFileCallback *mResolveFileCallback;
uint32 mStopMask;
bool mTraceSource, mTraceICode;
uint32 mLastSourcePos, mLastICodeID;
ShellCommand mLastCommand;
};
} /* namespace Debugger */
} /* namespace JavaScript */
#endif /* debugger_h */

View File

@@ -1,26 +0,0 @@
debugger.o: debugger.cpp world.h utilities.h systemtypes.h hash.h \
parser.h debugger.h interpreter.h jstypes.h gc_allocator.h vmtypes.h \
numerics.h jsclasses.h icode.h icodegenerator.h
gc_allocator.o: gc_allocator.cpp gc_allocator.h gc_container.h
hash.o: hash.cpp hash.h utilities.h systemtypes.h
icodegenerator.o: icodegenerator.cpp numerics.h utilities.h \
systemtypes.h world.h hash.h parser.h vmtypes.h jstypes.h \
gc_allocator.h jsclasses.h icode.h icodegenerator.h interpreter.h
interpreter.o: interpreter.cpp interpreter.h utilities.h systemtypes.h \
jstypes.h gc_allocator.h vmtypes.h numerics.h jsclasses.h world.h \
hash.h parser.h icode.h icodegenerator.h jsmath.h
js2.o: js2.cpp world.h utilities.h systemtypes.h hash.h parser.h \
interpreter.h jstypes.h gc_allocator.h vmtypes.h numerics.h \
jsclasses.h icode.h icodegenerator.h debugger.h
jsmath.o: jsmath.cpp jsmath.h jstypes.h utilities.h systemtypes.h \
gc_allocator.h
jstypes.o: jstypes.cpp jstypes.h utilities.h systemtypes.h \
gc_allocator.h jsclasses.h numerics.h icodegenerator.h parser.h \
vmtypes.h world.h hash.h icode.h
numerics.o: numerics.cpp numerics.h utilities.h systemtypes.h
parser.o: parser.cpp numerics.h utilities.h systemtypes.h parser.h \
world.h hash.h
utilities.o: utilities.cpp utilities.h systemtypes.h
vmtypes.o: vmtypes.cpp utilities.h systemtypes.h vmtypes.h numerics.h \
jstypes.h gc_allocator.h jsclasses.h world.h hash.h parser.h icode.h
world.o: world.cpp world.h utilities.h systemtypes.h hash.h parser.h

View File

@@ -1,150 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 2000 Netscape Communications Corporation. All
// Rights Reserved.
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include "gc_allocator.h"
#include "gc_container.h"
/*
namespace JavaScript {
template <class T>
typename gc_allocator<T>::pointer
gc_allocator<T>::allocate(gc_allocator<T>::size_type n, const void*)
{
return static_cast<pointer>(GC_malloc(n*sizeof(T)));
}
template <class T>
void gc_allocator<T>::deallocate(gc_allocator<T>::pointer ptr, gc_allocator<T>::size_type)
{
// this can really be a NO-OP with the GC.
// ::GC_free(static_cast<void*>(ptr));
}
}
*/
// test driver for standalone GC development.
namespace JS = JavaScript;
template <class T>
void* operator new(std::size_t, const JS::gc_allocator<T>& alloc)
{
return alloc.allocate(1);
}
/**
* Define a C++ class that is garbage collectable, and wants to have its destructor
* called when it is finalized.
*/
class A {
public:
typedef JS::gc_traits_finalizable<A> traits;
typedef JS::gc_allocator<A, traits> allocator;
friend struct traits;
static int instances;
void* operator new(std::size_t)
{
return allocator::allocate(1);
}
A()
{
++instances;
std::cout << "A::A() here." << std::endl;
}
protected:
~A()
{
--instances;
std::cout << "A::~A() here." << std::endl;
}
private:
// void operator delete(void*) {}
};
int A::instances = 0;
int main(int /* argc */, char* /* argv[] */)
{
using namespace std;
using namespace JS;
cout << "testing the GC allocator." << endl;
#ifdef XP_MAC
// allocate a string, using the GC, and owned by an auto_ptr, that knows how to correctly destroy the string.
typedef gc_container<char>::string char_string;
typedef gc_allocator<char_string> char_string_alloc;
auto_ptr<char_string, char_string_alloc> ptr(new(char_string_alloc()) char_string("This is a garbage collectable string."));
const char_string& str = *ptr;
cout << str << endl;
#endif
// question, how can we partially evaluate a template?
// can we say, typedef template <class T> vector<typename T>.
// typedef vector<int, gc_allocator<int> > int_vector;
typedef gc_container<int>::vector int_vector;
// generate 1000 random values.
int_vector values;
for (int i = 0; i < 1000; ++i) {
int value = rand() % 32767;
values.push_back(value);
// allocate a random amount of garbage.
if (!GC_malloc(static_cast<size_t>(value)))
cerr << "GC_malloc failed." << endl;
// allocate an object that has a finalizer to call its destructor.
A* a = new A();
}
// run a collection.
// gc_allocator<void>::collect();
GC_gcollect();
// print out instance count.
cout << "A::instances = " << A::instances << endl;
// sort the values.
sort(values.begin(), values.end());
// print the values.
int_vector::iterator iter = values.begin(), last = values.end();
cout << *iter++;
while (iter < last)
cout << ' ' << *iter++;
cout << endl;
#ifdef XP_MAC
// finally, print the string again.
cout << str << endl;
#endif
return 0;
}

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@@ -1,178 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 2000 Netscape Communications Corporation. All
// Rights Reserved.
#ifndef gc_allocator_h
#define gc_allocator_h
#include <memory>
#ifndef _WIN32 // Microsoft VC6 bug: standard identifiers should be in std namespace
using std::size_t;
using std::ptrdiff_t;
#endif
namespace JavaScript {
extern "C" {
void* GC_malloc(size_t bytes);
void* GC_malloc_atomic(size_t bytes);
void GC_free(void* ptr);
void GC_gcollect(void);
typedef void (*GC_finalization_proc) (void* obj, void* client_data);
void GC_register_finalizer(void* obj, GC_finalization_proc proc, void* client_data,
GC_finalization_proc *old_proc, void* *old_client_data);
}
#if 0 && !defined(XP_MAC)
// for platforms where GC doesn't exist yet.
inline void* GC_malloc(size_t bytes) { return ::operator new(bytes); }
inline void* GC_malloc_atomic(size_t bytes) { return ::operator new(bytes); }
inline void GC_free(void* ptr) { operator delete(ptr); }
inline void GC_gcollect() {}
inline void GC_register_finalizer(void* obj, GC_finalization_proc proc, void* client_data,
GC_finalization_proc *old_proc, void* *old_client_data) {}
#endif
/**
* General case: memory for type must be allocated as a conservatively
* scanned block of memory.
*/
template <class T> struct gc_traits {
static T* allocate(size_t n) { return static_cast<T*>(GC_malloc(n * sizeof(T))); }
};
/**
* Specializations for blocks of atomic types: the macro define_atomic_type(_type)
* specializes gc_traits<T> for types that need not be scanned by the
* GC. Implementors are free to define other types as atomic, if they are
* guaranteed not to contain pointers.
*/
#define define_atomic_type(_type) \
template <> struct gc_traits<_type> { \
static _type* allocate(size_t n) \
{ \
return static_cast<_type*>(GC_malloc_atomic(n * sizeof(_type))); \
} \
};
define_atomic_type(char)
define_atomic_type(unsigned char)
define_atomic_type(short)
define_atomic_type(unsigned short)
define_atomic_type(int)
define_atomic_type(unsigned int)
define_atomic_type(long)
define_atomic_type(unsigned long)
define_atomic_type(float)
define_atomic_type(double)
#undef define_atomic_type
/**
* Traits for classes that need to have their destructor called
* when reclaimed by the garbage collector.
*/
template <class T> struct gc_traits_finalizable {
static void finalizer(void* obj, void* client_data)
{
T* t = static_cast<T*>(obj);
size_t n = reinterpret_cast<size_t>(client_data);
for (size_t i = 0; i < n; ++i)
t[i].~T();
}
static T* allocate(size_t n)
{
T* t = gc_traits<T>::allocate(n);
GC_finalization_proc old_proc; void* old_client_data;
GC_register_finalizer(t, &finalizer, reinterpret_cast<void*>(n), &old_proc, &old_client_data);
return t;
}
};
/**
* An allocator that can be used to allocate objects in the garbage collected heap.
*/
template <class T, class traits = gc_traits<T> > class gc_allocator {
public:
typedef T value_type;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef T *pointer;
typedef const T *const_pointer;
typedef T &reference;
typedef const T &const_reference;
gc_allocator() {}
template<typename U, typename UTraits> gc_allocator(const gc_allocator<U, UTraits>&) {}
// ~gc_allocator() {}
static pointer address(reference r) { return &r; }
static const_pointer address(const_reference r) { return &r; }
static pointer allocate(size_type n, const void* /* hint */ = 0) { return traits::allocate(n); }
static void deallocate(pointer, size_type) {}
static void construct(pointer p, const T &val) { new(p) T(val);}
static void destroy(pointer p) { p->~T(); }
#if defined(__GNUC__) || defined(_WIN32)
static size_type max_size() { return size_type(-1) / sizeof(T); }
#else
static size_type max_size() { return std::numeric_limits<size_type>::max() / sizeof(T); }
#endif
template<class U> struct rebind { typedef gc_allocator<U> other; };
#ifdef _WIN32
// raw byte allocator used on some platforms (grrr).
typedef char _Char[1];
static char* _Charalloc(size_type n) { return (char*) rebind<_Char>::other::allocate(n); }
// funky operator required for calling basic_string<T> constructor (grrr).
template<typename U, typename UTraits> int operator==(const gc_allocator<U, UTraits>&) { return 0; }
#endif
// void* deallocate used on some platforms (grrr).
static void deallocate(void*, size_type) {}
static void collect() { GC_gcollect(); }
};
/**
* Generic base class for objects allocated using a gc_allocator. How they are allocated
* can be controlled by specializing gc_traits for the specific class.
*/
template <typename T> class gc_object {
public:
void* operator new(size_t) { return gc_allocator<T>::allocate(1, 0); }
void operator delete(void* /* ptr */) {}
};
/**
* Simpler base class for classes that have no need to specialize allocation behavior.
*/
class gc_base {
public:
void* operator new(size_t n) { return GC_malloc(n); }
void operator delete(void*) {}
};
}
#endif /* gc_allocator_h */

View File

@@ -1,71 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 2000 Netscape Communications Corporation. All
// Rights Reserved.
#ifndef gc_container_h
#define gc_container_h
#include "gc_allocator.h"
#include <list>
#include <vector>
#include <string>
#define LIST std::list
#define VECTOR std::vector
#if defined(__GNUC__)
// grr, what kind of standard is this?
#define STRING basic_string
#define CHAR_TRAITS string_char_traits
#else
#define STRING std::basic_string
#define CHAR_TRAITS std::char_traits
#endif
namespace JavaScript {
/**
* Rebind some of the basic container types to use a GC_allocator.
* What I really want is something more general, something like:
* template <typename Container, typename T> class gc_rebind {
* typedef typename Container<T, gc_allocator<T> > other;
* };
* But I can't figure out how to do that with C++ templates.
*/
template <class T> struct gc_container {
typedef typename LIST<T, gc_allocator<T> > list;
typedef typename VECTOR<T, gc_allocator<T> > vector;
typedef typename STRING<T, CHAR_TRAITS<T>, gc_allocator<T> > string;
};
/**
* But, it's pretty easy to do with macros:
*/
#define GC_CONTAINER(container, type) container<T, gc_allocator<T> >
/*
// this gives an "unimplemented C++ feature" error using CWPro5.
// maybe someday.
template <template<class, class> typename Container, typename T>
struct gc_rebind {
typedef typename Container<T, gc_allocator<T> > container;
};
*/
}
#endif /* gc_container_h */

View File

@@ -1,173 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 1998 Netscape Communications Corporation. All
// Rights Reserved.
#include "hash.h"
#include <new>
namespace JS = JavaScript;
//
// Hash Codes
//
// General-purpose null-terminated C string hash function
JS::HashNumber JS::hashString(const char *s)
{
HashNumber h = 0;
uchar ch;
while ((ch = (uchar)*s++) != 0)
h = (h >> 28) ^ (h << 4) ^ ch;
return h;
}
// General-purpose String hash function
JS::HashNumber JS::hashString(const String &s)
{
HashNumber h = 0;
String::const_iterator p = s.begin();
String::size_type n = s.size();
if (n < 16)
// Hash every character in a short string.
while (n--)
h = (h >> 28) ^ (h << 4) ^ *p++;
else
// Sample a la java.lang.String.hash().
for (String::size_type m = n / 8; n >= m; p += m, n -= m)
h = (h >> 28) ^ (h << 4) ^ *p;
return h;
}
//
// Hash Tables
//
const uint minLgNBuckets = 4;
JS::GenericHashTableIterator::GenericHashTableIterator(GenericHashTable &ht):
ht(ht), entry(0), nextBucket(ht.buckets)
{
DEBUG_ONLY(++ht.nReferences);
operator++();
}
JS::GenericHashTableIterator &
JS::GenericHashTableIterator::operator++()
{
GenericHashEntry *e = entry;
if (e) {
backpointer = &e->next;
e = e->next;
}
if (!e) {
GenericHashEntry **const bucketsEnd = ht.bucketsEnd;
GenericHashEntry **bucket = nextBucket;
while (bucket != bucketsEnd) {
e = *bucket++;
if (e) {
backpointer = bucket-1;
break;
}
}
nextBucket = bucket;
}
entry = e;
return *this;
}
JS::GenericHashTable::GenericHashTable(uint32 nEntriesDefault):
nEntries(0)
{
DEBUG_ONLY(nReferences = 0);
uint lgNBuckets = ceilingLog2(nEntriesDefault);
if (lgNBuckets < minLgNBuckets)
lgNBuckets = minLgNBuckets;
defaultLgNBuckets = lgNBuckets;
recomputeMinMaxNEntries(lgNBuckets);
uint32 nBuckets = JS_BIT(lgNBuckets);
buckets = new GenericHashEntry*[nBuckets];
// No exceptions after this point unless buckets is deleted.
bucketsEnd = buckets + nBuckets;
zero(buckets, bucketsEnd);
}
// Initialize shift, minNEntries, and maxNEntries based on the lg2 of the
// number of buckets.
void JS::GenericHashTable::recomputeMinMaxNEntries(uint lgNBuckets)
{
uint32 nBuckets = JS_BIT(lgNBuckets);
shift = 32 - lgNBuckets;
maxNEntries = nBuckets; // Maximum ratio is 100%
minNEntries = lgNBuckets <= defaultLgNBuckets ? 0 : 3*(nBuckets>>3); // Minimum ratio is 37.5%
}
// Rehash the table. This method cannot throw out-of-memory exceptions, so it is
// safe to call from a destructor.
void JS::GenericHashTable::rehash()
{
uint32 newLgNBuckets = ceilingLog2(nEntries);
if (newLgNBuckets < defaultLgNBuckets)
newLgNBuckets = defaultLgNBuckets;
uint32 newNBuckets = JS_BIT(newLgNBuckets);
try {
GenericHashEntry **newBuckets = new GenericHashEntry*[newNBuckets];
// No exceptions after this point.
GenericHashEntry **newBucketsEnd = newBuckets + newNBuckets;
zero(newBuckets, newBucketsEnd);
recomputeMinMaxNEntries(newLgNBuckets);
GenericHashEntry **be = bucketsEnd;
for (GenericHashEntry **b = buckets; b != be; b++) {
GenericHashEntry *e = *b;
while (e) {
GenericHashEntry *next = e->next;
// Place e in the new set of buckets.
GenericHashEntry **nb = newBuckets + (e->keyHash*goldenRatio >> shift);
e->next = *nb;
*nb = e;
e = next;
}
}
delete[] buckets;
buckets = newBuckets;
bucketsEnd = newBucketsEnd;
} catch (std::bad_alloc) {
// Out of memory. Ignore the error and just relax the resizing boundaries.
if (buckets + JS_BIT(newLgNBuckets) > bucketsEnd)
maxNEntries >>= 1;
else
minNEntries <<= 1;
}
}

View File

@@ -1,373 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 1998 Netscape Communications Corporation. All
// Rights Reserved.
#ifndef hash_h
#define hash_h
#include "utilities.h"
namespace JavaScript {
//
// Hash Codes
//
typedef uint32 HashNumber;
HashNumber hashString(const char *s);
HashNumber hashString(const String &s);
template<class Key>
struct Hash {
HashNumber operator()(Key key) const;
};
template<class Key>
inline HashNumber Hash<Key>::operator()(Key key) const
{
return hashString(key);
}
const HashNumber goldenRatio = 0x9E3779B9U;
//
// Private
//
// Base class for user-defined hash entries.
// private
class GenericHashEntry {
public:
GenericHashEntry *next; // Link to next entry in the same bucket
const HashNumber keyHash; // This entry's hash value
protected:
explicit GenericHashEntry(HashNumber keyHash): next(0), keyHash(keyHash) {}
friend class GenericHashTable;
};
// private
class GenericHashTableIterator;
class GenericHashTable {
protected:
GenericHashEntry **buckets; // Vector of hash buckets
GenericHashEntry **bucketsEnd; // Pointer past end of vector of hash buckets
uint defaultLgNBuckets; // lg2 of minimum number of buckets for which to size the table
uint32 nEntries; // Number of entries in table
uint32 minNEntries; // Minimum number of entries without rehashing
uint32 maxNEntries; // Maximum number of entries without rehashing
uint32 shift; // 32 - lg2(number of buckets)
#ifdef DEBUG
public:
uint32 nReferences; // Number of iterators and references currently pointing to this hash table
#endif
public:
explicit GenericHashTable(uint32 nEntriesDefault);
~GenericHashTable() {
#ifndef _WIN32
ASSERT(nReferences == 0);
#endif
delete[] buckets;
}
void recomputeMinMaxNEntries(uint lgNBuckets);
void rehash();
void maybeGrow() {if (nEntries > maxNEntries) rehash();}
void maybeShrink() {if (nEntries < minNEntries) rehash();}
friend class GenericHashTableIterator;
typedef GenericHashTableIterator Iterator;
};
// This ought to be GenericHashTable::Iterator, but this doesn't work due to a
// Microsoft VC6 bug.
class GenericHashTableIterator {
protected:
GenericHashTable &ht; // Hash table being iterated
GenericHashEntry *entry; // Current entry; nil if done
GenericHashEntry **backpointer; // Pointer to pointer to current entry
GenericHashEntry **nextBucket; // Next bucket; pointer past end of vector of hash buckets if done
public:
explicit GenericHashTableIterator(GenericHashTable &ht);
~GenericHashTableIterator() {ht.maybeShrink(); DEBUG_ONLY(--ht.nReferences);}
operator bool() const {return entry != 0;} // Return true if there are entries left.
GenericHashTableIterator &operator++();
};
//
// Hash Tables
//
template<class Data, class Key, class H = Hash<Key> >
class HashTable: private GenericHashTable {
H hasher; // Hash function
struct Entry: public GenericHashEntry {
Data data;
Entry(HashNumber keyHash, Key key): GenericHashEntry(keyHash), data(key) {}
template<class Value>
Entry(HashNumber keyHash, Key key, Value value): GenericHashEntry(keyHash), data(key, value) {}
};
public:
class Reference {
#ifdef _WIN32 // Microsoft VC6 bug: friend declarations to inner classes don't work
public:
#endif
Entry *entry; // Current entry; nil if done
GenericHashEntry **backpointer; // Pointer to pointer to current entry
const HashNumber keyHash; // This entry's key's hash value
#ifdef DEBUG
GenericHashTable *ht; // Hash table to which this Reference points
#endif
public:
#ifndef _WIN32
Reference(HashTable &ht, Key key); // Search for an entry with the given key.
#else // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
Reference(HashTable &ht, Key key): keyHash(ht.hasher(key)) {
#ifdef DEBUG
Reference::ht = &ht;
++ht.nReferences;
#endif
HashNumber kh = keyHash;
HashNumber h = kh*goldenRatio >> ht.shift;
GenericHashEntry **bp = ht.buckets + h;
Entry *e;
while ((e = static_cast<Entry *>(*bp)) != 0 && !(e->keyHash == kh && e->data == key))
bp = &e->next;
entry = e;
backpointer = bp;
}
#endif
private:
Reference(const Reference&); // No copy constructor
void operator=(const Reference&); // No assignment operator
public:
#if defined(DEBUG) && !defined(_WIN32)
~Reference() {if (ht) --ht->nReferences;}
#endif
operator bool() const {return entry != 0;} // Return true if an entry was found.
Data &operator*() const {ASSERT(entry); return entry->data;} // Return the data of the entry that was found.
friend class HashTable;
};
class Iterator: public GenericHashTableIterator {
public:
explicit Iterator(HashTable &ht): GenericHashTableIterator(ht) {}
private:
Iterator(const Iterator&); // No copy constructor
void operator=(const Iterator&); // No assignment operator
public:
// Go to next entry.
Iterator &operator++() {return *static_cast<Iterator*>(&GenericHashTableIterator::operator++());}
Data &operator*() const {ASSERT(entry); return static_cast<Entry *>(entry)->data;} // Return current entry's data.
void erase();
};
HashTable(uint32 nEntriesDefault = 0, const H &hasher = H()): GenericHashTable(nEntriesDefault), hasher(hasher) {}
~HashTable();
template<class Value> Data &insert(Reference &r, Key key, Value value);
Data &insert(Reference &r, Key key);
Data &insert(Key key);
void erase(Reference &r);
void erase(Key key);
Data *operator[](Key key);
friend class Reference;
friend class Iterator;
#ifndef _WIN32
template<class Value> Data &insert(Key key, Value value);
#else // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
template<class Value> Data &insert(Key key, Value value) {
Reference r(*this, key);
if (r)
return *r = value;
else
return insert(r, key, value);
}
#endif
};
//
// Implementation
//
template<class Data, class Key, class H>
HashTable<Data, Key, H>::~HashTable()
{
GenericHashEntry **be = bucketsEnd;
for (GenericHashEntry **b = buckets; b != be; b++) {
Entry *e = static_cast<Entry *>(*b);
while (e) {
Entry *next = static_cast<Entry *>(e->next);
delete e;
e = next;
}
}
}
#ifndef _WIN32
template<class Data, class Key, class H>
HashTable<Data, Key, H>::Reference::Reference(HashTable &ht, Key key):
keyHash(ht.hasher(key))
{
#ifdef DEBUG
Reference::ht = &ht;
++ht.nReferences;
#endif
HashNumber kh = keyHash;
HashNumber h = kh*goldenRatio >> ht.shift;
GenericHashEntry **bp = ht.buckets + h;
Entry *e;
while ((e = static_cast<Entry *>(*bp)) != 0 && !(e->keyHash == kh && e->data == key))
bp = &e->next;
entry = e;
backpointer = bp;
}
// Insert the given key/value pair into the hash table. Reference must
// be the result of an unsuccessful search for that key in the table.
// The reference is not valid after this method is called.
// Return a reference to the new entry's value.
template<class Data, class Key, class H> template<class Value>
inline Data &HashTable<Data, Key, H>::insert(Reference &r, Key key, Value value)
{
ASSERT(r.ht == this && !r.entry);
Entry *e = new Entry(r.keyHash, key, value);
*r.backpointer = e;
++nEntries;
maybeGrow();
#ifdef DEBUG
--r.ht->nReferences;
r.ht = 0;
#endif
return e->data;
}
#endif
// Same as above but without a Value argument.
template<class Data, class Key, class H>
inline Data &HashTable<Data, Key, H>::insert(Reference &r, Key key)
{
ASSERT(r.ht == this && !r.entry);
Entry *e = new Entry(r.keyHash, key);
*r.backpointer = e;
++nEntries;
maybeGrow();
#ifdef DEBUG
--r.ht->nReferences;
r.ht = 0;
#endif
return e->data;
}
// Insert the given key/value pair into the hash table. If an entry with a
// matching key already exists, replace that entry's value.
// Return a reference to the new entry's value.
#ifndef _WIN32 // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
template<class Data, class Key, class H> template<class Value>
Data &HashTable<Data, Key, H>::insert(Key key, Value value)
{
Reference r(*this, key);
if (r)
return *r = value;
else
return insert(r, key, value);
}
#endif
// Same as above but without a Value argument.
template<class Data, class Key, class H>
Data &HashTable<Data, Key, H>::insert(Key key)
{
Reference r(*this, key);
if (r)
return *r;
else
return insert(r, key);
}
// Reference r must point to an existing entry. Delete that entry.
// The reference is not valid after this method is called.
template<class Data, class Key, class H>
inline void HashTable<Data, Key, H>::erase(Reference &r)
{
Entry *e = r.entry;
ASSERT(r.ht == this && e);
*r.backpointer = e->next;
--nEntries;
delete e;
#ifdef DEBUG
--r.ht->nReferences;
r.ht = 0;
#endif
maybeShrink();
}
// Remove the hash table entry, if any, matching the given key.
template<class Data, class Key, class H>
void HashTable<Data, Key, H>::erase(Key key)
{
Reference r(*this, key);
if (r)
erase(r);
}
// Return a pointer to the value of the hash table entry matching the given key.
// Return nil if no entry matches.
template<class Data, class Key, class H>
Data *HashTable<Data, Key, H>::operator[](Key key)
{
Reference r(*this, key);
if (r)
return &*r;
else
return 0;
}
}
#endif

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@@ -1,306 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef icodegenerator_h
#define icodegenerator_h
#include <vector>
#include <stack>
#include "utilities.h"
#include "parser.h"
#include "vmtypes.h"
#include "jsclasses.h"
namespace JavaScript {
namespace ICG {
using namespace VM;
using namespace JSTypes;
using namespace JSClasses;
typedef std::map<String, TypedRegister, std::less<String> > VariableList;
typedef std::map<uint32, uint32, std::less<uint32> > InstructionMap;
class ICodeModule {
public:
ICodeModule(InstructionStream *iCode, VariableList *variables,
uint32 maxRegister, uint32 maxParameter,
InstructionMap *instructionMap) :
its_iCode(iCode), itsVariables(variables),
itsParameterCount(maxParameter), itsMaxRegister(maxRegister),
mID(++sMaxID), mInstructionMap(instructionMap) { }
~ICodeModule()
{
delete its_iCode;
delete itsVariables;
delete mInstructionMap;
}
Formatter& print(Formatter& f);
void setFileName (String aFileName) { mFileName = aFileName; }
String getFileName () { return mFileName; }
InstructionStream *its_iCode;
VariableList *itsVariables;
uint32 itsParameterCount;
uint32 itsMaxRegister;
uint32 mID;
InstructionMap *mInstructionMap;
String mFileName;
static uint32 sMaxID;
};
typedef std::vector<const StringAtom *> LabelSet;
class LabelEntry {
public:
LabelEntry(LabelSet *labelSet, Label *breakLabel)
: labelSet(labelSet), breakLabel(breakLabel), continueLabel(NULL) { }
LabelEntry(LabelSet *labelSet, Label *breakLabel, Label *continueLabel)
: labelSet(labelSet), breakLabel(breakLabel), continueLabel(continueLabel) { }
bool containsLabel(const StringAtom *label);
LabelSet *labelSet;
Label *breakLabel;
Label *continueLabel;
};
typedef std::vector<LabelEntry *> LabelStack;
Formatter& operator<<(Formatter &f, ICodeModule &i);
/****************************************************************/
// An ICodeGenerator provides the interface between the parser and the
// interpreter. The parser constructs one of these for each
// function/script, adds statements and expressions to it and then
// converts it into an ICodeModule, ready for execution.
class ICodeGenerator {
public:
typedef enum { kNoFlags = 0, kIsTopLevel = 0x01, kIsStaticMethod = 0x02, kIsWithinWith = 0x04 } ICodeGeneratorFlags;
private:
InstructionStream *iCode;
bool iCodeOwner;
LabelList labels;
Register mTopRegister; // highest (currently) alloacated register
uint32 mParameterCount; // number of parameters declared for the function
// these must come before any variables declared.
TypedRegister mExceptionRegister; // reserved to carry the exception object.
VariableList *variableList; // name|register pair for each variable
World *mWorld; // used to register strings
JSScope *mGlobal; // the scope for compiling within
LabelStack mLabelStack; // stack of LabelEntry objects, one per nested looping construct
// maps source position to instruction index
InstructionMap *mInstructionMap;
JSClass *mClass; // enclosing class when generating code for methods
ICodeGeneratorFlags mFlags; // assorted flags
std::vector<bool> mPermanentRegister;
Register getTempRegister()
{
while (mTopRegister < mPermanentRegister.size())
if (!mPermanentRegister[mTopRegister])
return mTopRegister++;
else
++mTopRegister;
mPermanentRegister.resize(mTopRegister + 1);
mPermanentRegister[mTopRegister] = false;
return mTopRegister++;
}
void resetTopRegister() { mTopRegister = mParameterCount; }
void resetStatement() { resetTopRegister(); }
TypedRegister allocateRegister(const StringAtom& name, JSType *type);
void setRegisterForVariable(const StringAtom& name, TypedRegister r) { (*variableList)[name] = r; }
JSType *findType(const StringAtom& typeName);
void setLabel(Label *label);
void jsr(Label *label) { iCode->push_back(new Jsr(label)); }
void rts() { iCode->push_back(new Rts()); }
void branch(Label *label);
GenericBranch *branchTrue(Label *label, TypedRegister condition);
GenericBranch *branchFalse(Label *label, TypedRegister condition);
void beginTry(Label *catchLabel, Label *finallyLabel)
{ iCode->push_back(new Tryin(catchLabel, finallyLabel)); }
void endTry() { iCode->push_back(new Tryout()); }
void beginWith(TypedRegister obj) { iCode->push_back(new Within(obj)); }
void endWith() { iCode->push_back(new Without()); }
void startStatement(uint32 pos) { (*mInstructionMap)[iCode->size()] = pos; }
ICodeOp mapExprNodeToICodeOp(ExprNode::Kind kind);
bool isTopLevel() { return (mFlags & kIsTopLevel) != 0; }
bool isWithinWith() { return (mFlags & kIsWithinWith) != 0; }
bool isStaticMethod() { return (mFlags & kIsStaticMethod) != 0; }
void setFlag(uint32 flag, bool v) { mFlags = (ICodeGeneratorFlags)((v) ? mFlags | flag : mFlags & ~flag); }
typedef enum {Var, Property, Slot, Static, Constructor, Name, Method} LValueKind;
LValueKind resolveIdentifier(const StringAtom &name, TypedRegister &v, uint32 &slotIndex);
TypedRegister handleIdentifier(IdentifierExprNode *p, ExprNode::Kind use, ICodeOp xcrementOp, TypedRegister ret, RegisterList *args);
TypedRegister handleDot(BinaryExprNode *b, ExprNode::Kind use, ICodeOp xcrementOp, TypedRegister ret, RegisterList *args);
ICodeModule *genFunction(FunctionStmtNode *f, bool isConstructor, JSClass *superClass);
public:
ICodeGenerator(World *world, JSScope *global, JSClass *aClass = NULL, ICodeGeneratorFlags flags = kIsTopLevel);
~ICodeGenerator()
{
if (iCodeOwner) {
delete iCode;
delete mInstructionMap;
}
}
ICodeModule *complete();
TypedRegister genExpr(ExprNode *p,
bool needBoolValueInBranch = false,
Label *trueBranch = NULL,
Label *falseBranch = NULL);
TypedRegister genStmt(StmtNode *p, LabelSet *currentLabelSet = NULL);
void returnStmt(TypedRegister r);
void returnStmt();
void throwStmt(TypedRegister r) { iCode->push_back(new Throw(r)); }
void debuggerStmt() { iCode->push_back(new Debugger()); }
TypedRegister allocateVariable(const StringAtom& name);
TypedRegister allocateVariable(const StringAtom& name, const StringAtom& typeName);
TypedRegister findVariable(const StringAtom& name)
{
VariableList::iterator i = variableList->find(name);
return (i == variableList->end()) ? TypedRegister(NotARegister, &None_Type) : (*i).second;
}
TypedRegister allocateParameter(const StringAtom& name) { mParameterCount++; return allocateRegister(name, &Any_Type); }
TypedRegister allocateParameter(const StringAtom& name, const StringAtom& typeName)
{ mParameterCount++; return allocateRegister(name, findType(typeName)); }
TypedRegister allocateParameter(const StringAtom& name, JSType *type)
{ mParameterCount++; return allocateRegister(name, type); }
Formatter& print(Formatter& f);
TypedRegister op(ICodeOp op, TypedRegister source);
TypedRegister op(ICodeOp op, TypedRegister source1, TypedRegister source2);
TypedRegister binaryOp(ICodeOp op, TypedRegister source1, TypedRegister source2);
TypedRegister call(TypedRegister base, TypedRegister target, RegisterList *args);
TypedRegister getMethod(TypedRegister thisArg, uint32 slotIndex);
void move(TypedRegister destination, TypedRegister source);
TypedRegister logicalNot(TypedRegister source);
TypedRegister test(TypedRegister source);
TypedRegister loadBoolean(bool value);
TypedRegister loadImmediate(double value);
TypedRegister loadString(const String &value);
TypedRegister loadString(const StringAtom &name);
TypedRegister newObject(TypedRegister constructor);
TypedRegister newArray();
TypedRegister newFunction(ICodeModule *icm);
TypedRegister newClass(JSClass *clazz);
TypedRegister cast(TypedRegister arg, JSType *toType);
TypedRegister super();
TypedRegister loadName(const StringAtom &name, JSType *t = &Any_Type);
void saveName(const StringAtom &name, TypedRegister value);
TypedRegister nameXcr(const StringAtom &name, ICodeOp op);
TypedRegister deleteProperty(TypedRegister base, const StringAtom &name);
TypedRegister getProperty(TypedRegister base, const StringAtom &name);
void setProperty(TypedRegister base, const StringAtom &name, TypedRegister value);
TypedRegister propertyXcr(TypedRegister base, const StringAtom &name, ICodeOp op);
TypedRegister getStatic(JSClass *base, const String &name);
void setStatic(JSClass *base, const StringAtom &name, TypedRegister value);
TypedRegister staticXcr(JSClass *base, const StringAtom &name, ICodeOp op);
TypedRegister getElement(TypedRegister base, TypedRegister index);
void setElement(TypedRegister base, TypedRegister index, TypedRegister value);
TypedRegister elementXcr(TypedRegister base, TypedRegister index, ICodeOp op);
TypedRegister getSlot(TypedRegister base, uint32 slot);
void setSlot(TypedRegister base, uint32 slot, TypedRegister value);
TypedRegister slotXcr(TypedRegister base, uint32 slot, ICodeOp op);
TypedRegister varXcr(TypedRegister var, ICodeOp op);
InstructionStream *getICode() { return iCode; }
Label *getLabel();
};
Formatter& operator<<(Formatter &f, ICodeGenerator &i);
Formatter& operator<<(Formatter &f, ICodeModule &i);
/*
std::ostream &operator<<(std::ostream &s, ICodeGenerator &i);
std::ostream &operator<<(std::ostream &s, StringAtom &str);
*/
} /* namespace IGC */
} /* namespace JavaScript */
#endif /* icodegenerator_h */

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@@ -1,113 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 2000 Netscape Communications Corporation. All
// Rights Reserved.
#ifndef interpreter_h
#define interpreter_h
#include "utilities.h"
#include "jstypes.h"
#include "vmtypes.h"
#include "icodegenerator.h"
#include "gc_allocator.h"
namespace JavaScript {
namespace Interpreter {
using namespace ICG;
using namespace JSTypes;
struct Activation;
struct Linkage;
class Context : public gc_base {
void initContext();
public:
explicit Context(World& world, JSScope* aGlobal)
: mWorld(world), mGlobal(aGlobal), mLinkage(0), mActivation(0), mHasOperatorsPackageLoaded(false) { initContext(); }
World& getWorld() { return mWorld; }
JSScope* getGlobalObject() { return mGlobal; }
InstructionIterator getPC() { return mPC; }
JSValues& getRegisters();
ICodeModule* getICode();
enum Event {
EV_NONE = 0x0000,
EV_STEP = 0x0001,
EV_THROW = 0x0002,
EV_DEBUG = 0x0004,
EV_ALL = 0xffff
};
class Listener {
public:
virtual void listen(Context *context, Event event) = 0;
};
void addListener(Listener* listener);
void removeListener(Listener* listener);
class Frame {
public:
virtual Frame* getNext() = 0;
virtual void getState(InstructionIterator& pc, JSValues*& registers,
ICodeModule*& iCode) = 0;
};
Frame* getFrames();
JSValue interpret(ICodeModule* iCode, const JSValues& args);
void doCall(JSFunction *target, Instruction *pc);
ICodeModule* compile(const String &source);
ICodeModule* genCode(StmtNode *p, const String &fileName);
JSValue readEvalFile(FILE* in, const String& fileName);
void addBinaryOperator(BinaryOperator::BinaryOp op, BinaryOperator *fn) { mBinaryOperators[op].push_back(fn); }
const JSValue findBinaryOverride(JSValue &operand1, JSValue &operand2, BinaryOperator::BinaryOp op);
bool hasOperatorsPackageLoaded() { return mHasOperatorsPackageLoaded; }
private:
void broadcast(Event event);
void initOperatorsPackage();
private:
World& mWorld;
JSScope* mGlobal;
Linkage* mLinkage;
typedef std::vector<Listener*, gc_allocator<Listener*> > ListenerList;
typedef ListenerList::iterator ListenerIterator;
ListenerList mListeners;
Activation* mActivation;
bool mHasOperatorsPackageLoaded;
InstructionIterator mPC;
BinaryOperatorList mBinaryOperators[BinaryOperator::BinaryOperatorCount];
}; /* class Context */
} /* namespace Interpreter */
} /* namespace JavaScript */
#endif /* interpreter_h */

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@@ -1,33 +0,0 @@
class ArithmeticNode extends BinaryNode {
ArithmeticNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
{
super(aOp, aLeft, aRight);
}
JSValue eval(Environment theEnv)
{
JSValue lV = left.eval(theEnv);
JSValue rV = right.eval(theEnv);
if (op == "+")
return lV.add(theEnv, rV);
else
if (op == "-")
return lV.subtract(theEnv, rV);
else
if (op == "*")
return lV.multiply(theEnv, rV);
else
if (op == "/")
return lV.divide(theEnv, rV);
else
if (op == "%")
return lV.remainder(theEnv, rV);
else {
System.out.println("missing arithmetic op " + op);
return null;
}
}
}

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@@ -1,16 +0,0 @@
class AssignmentNode extends BinaryNode {
AssignmentNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
{
super(aOp, aLeft, aRight);
}
JSValue eval(Environment theEnv)
{
JSReference lV = left.evalLHS(theEnv);
JSValue rV = right.eval(theEnv);
return lV.base.putProp(theEnv, lV.id, rV);
}
}

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@@ -1,72 +0,0 @@
class BinaryNode extends ExpressionNode {
BinaryNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
{
left = aLeft;
right = aRight;
op = aOp;
}
JSReference evalLHS(Environment theEnv)
{
if (op == ".") {
JSValue lV = left.eval(theEnv);
JSString id;
if (right instanceof JSIdentifier)
id = (JSString)right;
else
id = right.eval(theEnv).toJSString(theEnv);
return new JSReference(lV, id);
}
else
throw new RuntimeException("bad lValue operator " + op);
}
JSValue eval(Environment theEnv)
{
JSValue lV = left.eval(theEnv);
JSValue rV = right.eval(theEnv);
if (op == ".")
return lV.getProp(theEnv, rV.toJSString(theEnv));
else
if (op == "()")
return lV.call(theEnv, rV);
else
if (op == ",")
return JSValueList.buildList(lV, rV);
else {
System.out.println("missing binary op " + op);
return null;
}
}
String print(String indent)
{
StringBuffer result = new StringBuffer(indent);
result.append(getClass().toString());
result.append(" ");
result.append(op);
result.append("\n");
indent += " ";
if (left == null) {
result.append(indent);
result.append("null\n");
}
else
result.append(left.print(indent));
if (right == null) {
result.append(indent);
result.append("null\n");
}
else
result.append(right.print(indent));
return result.toString();
}
protected ExpressionNode left;
protected ExpressionNode right;
protected String op;
}

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@@ -1,36 +0,0 @@
class BitwiseNode extends BinaryNode {
BitwiseNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
{
super(aOp, aLeft, aRight);
}
JSValue eval(Environment theEnv)
{
JSInteger lV = left.eval(theEnv).toJSInteger(theEnv);
JSValue rV = right.eval(theEnv);
if (op == "&")
return lV.and(theEnv, rV);
else
if (op == "|")
return lV.or(theEnv, rV);
else
if (op == "^")
return lV.xor(theEnv, rV);
else
if (op == "<<")
return lV.shr(theEnv, rV);
else
if (op == ">>")
return lV.shl(theEnv, rV);
else
if (op == ">>>")
return lV.ushl(theEnv, rV);
else {
System.out.println("missing bitwise op " + op);
return null;
}
}
}

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@@ -1,24 +0,0 @@
import java.io.*;
class Brenda {
public static void main(String[] args) {
try {
JSLexer lexer = new JSLexer((args != null) ? new DataInputStream(new FileInputStream(args[0])) : new DataInputStream(System.in));
JSParser parser = new JSParser(lexer);
ControlNodeGroup tree = new ControlNodeGroup();
parser.statements(0, tree);
System.out.println(ControlNode.printAll());
Environment theEnv = new Environment();
ControlNode c = tree.getHead();
while (c != null) c = c.eval(theEnv);
System.out.println("After eval :\n" + theEnv.print());
} catch(Exception e) {
System.err.println("exception: "+e);
}
}
}

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@@ -1,59 +0,0 @@
class ConditionalNode extends ControlNode {
ConditionalNode(ExpressionNode aCondition)
{
super(aCondition);
}
ConditionalNode(ExpressionNode aCondition, ControlNode aTrueCode)
{
super(aCondition);
trueCode = aTrueCode;
}
ConditionalNode(ExpressionNode aCondition, ControlNode aTrueCode, ControlNode aFalseCode)
{
super(aCondition);
trueCode = aTrueCode;
setNext(aFalseCode);
}
void moveNextToTrue()
{
trueCode = next;
setNext(null);
}
ControlNode eval(Environment theEnv)
{
JSBoolean b = expr.eval(theEnv).toJSBoolean(theEnv);
if (b.isTrue())
return trueCode;
else
return next;
}
String print()
{
StringBuffer result = new StringBuffer("ConditionalNode ");
result.append(index);
result.append("\nexpr:\n");
if (expr == null)
result.append("expr = null\n");
else
result.append(expr.print(""));
result.append("true branch:\n");
if (trueCode == null)
result.append("true branch = null\n");
else
result.append("true branch->" + trueCode.index + "\n");
result.append("false branch:\n");
if (next == null)
result.append("false branch = null\n");
else
result.append("false branch->" + next.index + "\n");
return result.toString();
}
protected ControlNode trueCode;
}

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@@ -1,67 +0,0 @@
import java.util.Vector;
class ControlNode {
private static Vector gList = new Vector();
static String printAll()
{
StringBuffer result = new StringBuffer();
for (int i = 0; i < gList.size(); i++) {
result.append(((ControlNode)(gList.elementAt(i))).print());
}
return result.toString();
}
ControlNode(ExpressionNode anExpr)
{
expr = anExpr;
index = gList.size();
gList.addElement(this);
}
ExpressionNode getExpression()
{
return expr;
}
void setNext(ControlNode aNext)
{
next = aNext;
}
ControlNode eval(Environment theEnv)
{
if (expr != null) theEnv.resultValue = expr.eval(theEnv);
return next;
}
String print()
{
StringBuffer result = new StringBuffer(getClass().toString().substring(6));
result.append(" #");
result.append(index);
result.append("\nexpr: \n");
if (expr == null)
result.append("expr = null\n");
else
result.append(expr.print(""));
result.append("next: ");
if (next == null)
result.append("next = null\n");
else
result.append("next->" + next.index + "\n");
return result.toString();
}
protected ExpressionNode expr;
protected ControlNode next;
protected int index;
}

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@@ -1,153 +0,0 @@
import java.util.Vector;
class ControlNodeGroup {
ControlNodeGroup()
{
}
ControlNodeGroup(ControlNode aHead)
{
head = aHead;
}
void add(ControlNodeGroup aGroup)
{
if (head == null) {
head = aGroup.head;
}
else {
fixTails(aGroup.getHead());
}
addTails(aGroup);
}
void add(ControlNode aNode)
{
fixTails(aNode);
addTail(aNode);
if (head == null) head = aNode;
}
void addBreak(ControlNode aNode)
{
fixTails(aNode);
addBreakTail(aNode);
if (head == null) head = aNode;
}
void addContinue(ControlNode aNode)
{
fixTails(aNode);
addContinueTail(aNode);
if (head == null) head = aNode;
}
void fixTails(ControlNode butt)
{
int count = tails.size();
for (int i = 0; i < count; i++)
{
ControlNode aNode = (ControlNode)(tails.elementAt(i));
aNode.setNext(butt);
}
tails.removeAllElements();
}
void fixContinues(ControlNode butt, String label)
{
int count = continueTails.size();
int i = 0;
while (i < count) {
ControlNode c = (ControlNode)(continueTails.elementAt(i));
ExpressionNode e = c.getExpression();
String tgt = (e == null) ? null : ((JSIdentifier)e).s;
if ((tgt == null) || tgt.equals(label)) {
c.setNext(butt);
continueTails.removeElementAt(i);
count--;
}
else
i++;
}
}
void setHead(ControlNode aHead)
{
head = aHead;
}
ControlNode getHead()
{
return head;
}
void addTail(ControlNode aTail)
{
tails.addElement(aTail);
}
void addBreakTail(ControlNode aTail)
{
breakTails.addElement(aTail);
}
void addContinueTail(ControlNode aTail)
{
continueTails.addElement(aTail);
}
void removeTail(ControlNode aTail)
{
tails.removeElement(aTail);
}
void addTails(ControlNodeGroup aGroup)
{
int count = aGroup.tails.size();
for (int i = 0; i < count; i++)
{
tails.addElement(aGroup.tails.elementAt(i));
}
aGroup.tails.removeAllElements();
count = aGroup.breakTails.size();
for (int i = 0; i < count; i++)
{
breakTails.addElement(aGroup.breakTails.elementAt(i));
}
aGroup.breakTails.removeAllElements();
count = aGroup.continueTails.size();
for (int i = 0; i < count; i++)
{
continueTails.addElement(aGroup.continueTails.elementAt(i));
}
aGroup.continueTails.removeAllElements();
}
void shiftBreakTails(String label)
{
int count = breakTails.size();
int i = 0;
while (i < count) {
ControlNode c = (ControlNode)(breakTails.elementAt(i));
ExpressionNode e = c.getExpression();
String tgt = (e == null) ? null : ((JSIdentifier)e).s;
if ((tgt == null) || tgt.equals(label)) {
tails.addElement(c);
breakTails.removeElementAt(i);
count--;
}
else
i++;
}
}
ControlNode head;
Vector tails = new Vector();
Vector breakTails = new Vector();
Vector continueTails = new Vector();
}

View File

@@ -1,30 +0,0 @@
import java.util.Hashtable;
class Environment {
JSScope scope = new JSScope("globals");
JSScope globalScope = scope;
void enterNewScope(JSScope newScope)
{
newScope.parent = scope;
scope = newScope;
}
void leaveScope()
{
scope = scope.parent;
}
String print()
{
StringBuffer result = new StringBuffer("Globals contents :\n");
result.append(scope.toString());
return result.toString();
}
JSValue resultValue;
}

View File

@@ -1,24 +0,0 @@
class ExpressionNode {
ExpressionNode()
{
}
String print(String indent)
{
return indent + "ExpressionNode(" + getClass().toString() + ")\n";
}
JSReference evalLHS(Environment theEnv)
{
System.out.println("Unimplemented evalLHS for " + print(""));
return null;
}
JSValue eval(Environment theEnv)
{
System.out.println("Unimplemented eval for " + print(""));
return null;
}
}

View File

@@ -1,36 +0,0 @@
class FunctionNode extends ExpressionNode {
FunctionNode(JSIdentifier aName, ControlNodeGroup aBody, ExpressionNode parameterList)
{
fn = new NativeFunction(aBody.getHead());
name = aName;
if (parameterList != null) {
if (parameterList instanceof BinaryNode)
buildParameterVector((BinaryNode)parameterList);
else
fn.parameters.addElement(parameterList);
}
}
void buildParameterVector(BinaryNode x)
{
if (x.left instanceof BinaryNode) {
buildParameterVector((BinaryNode)(x.left));
fn.parameters.addElement(x.right);
}
else {
fn.parameters.addElement(x.left);
fn.parameters.addElement(x.right);
}
}
JSValue eval(Environment theEnv)
{
theEnv.scope.putProp(theEnv, name, fn);
return fn;
}
JSString name;
NativeFunction fn;
}

View File

@@ -1,52 +0,0 @@
class JSBoolean extends JSValue {
static JSBoolean JSTrue = new JSBoolean(true);
static JSBoolean JSFalse = new JSBoolean(false);
private JSBoolean(boolean p)
{
b = p;
}
JSValue eval(Environment theEnv)
{
return this;
}
boolean isTrue()
{
return b;
}
boolean isFalse()
{
return !b;
}
JSValue bang(Environment theEnv) {
return (b) ? JSFalse : JSTrue;
}
JSValue typeof(Environment theEnv) {
return new JSString("boolean");
}
JSBoolean toJSBoolean(Environment theEnv) {
return this;
}
JSValue toPrimitive(Environment theEnv, String hint) {
return this;
}
JSString toJSString(Environment theEnv) {
return (b) ? new JSString("true") : new JSString("false");
}
JSDouble toJSDouble(Environment theEnv) {
return (b) ? new JSDouble(1) : new JSDouble(0);
}
boolean b;
}

View File

@@ -1,111 +0,0 @@
class JSDouble extends JSNumber {
JSDouble(double p)
{
d = p;
}
JSDouble(String s)
{
d = new Double(s).doubleValue();
}
String print(String indent)
{
return indent + "JSDouble " + d + "\n";
}
public String toString()
{
return Double.toString(d);
}
JSValue eval(Environment theEnv)
{
return this;
}
JSValue plus(Environment theEnv) {
return this;
}
JSValue minus(Environment theEnv) {
return new JSDouble(-d);
}
JSValue add(Environment theEnv, JSValue rV) {
if (rV instanceof JSString)
return toJSString(theEnv).add(theEnv, rV);
else
return new JSDouble(d + rV.toJSDouble(theEnv).d);
}
JSValue subtract(Environment theEnv, JSValue rV) {
return new JSDouble(d - rV.toJSDouble(theEnv).d);
}
JSValue multiply(Environment theEnv, JSValue rV) {
return new JSDouble(d * rV.toJSDouble(theEnv).d);
}
JSValue divide(Environment theEnv, JSValue rV) {
return new JSDouble(d / rV.toJSDouble(theEnv).d);
}
JSValue remainder(Environment theEnv, JSValue rV) {
return new JSDouble(d % rV.toJSDouble(theEnv).d);
}
JSValue gt(Environment theEnv, JSValue rV) {
return (d > rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
}
JSValue ge(Environment theEnv, JSValue rV) {
return (d >= rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
}
JSValue lt(Environment theEnv, JSValue rV) {
return (d < rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
}
JSValue le(Environment theEnv, JSValue rV) {
return (d <= rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
}
JSValue eq(Environment theEnv, JSValue rV) {
return (d == rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
}
JSValue ne(Environment theEnv, JSValue rV) {
return (d != rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
}
JSDouble toJSDouble(Environment theEnv) {
return this;
}
JSValue toPrimitive(Environment theEnv, String hint) {
return this;
}
JSInteger toJSInteger(Environment theEnv) {
return new JSInteger((int)d);
}
JSBoolean toJSBoolean(Environment theEnv) {
return ((d == d) && (d != 0.0)) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
}
JSString toJSString(Environment theEnv) {
return new JSString(Double.toString(d));
}
JSObject toJSObject(Environment theEnv) {
return new NativeNumber(d);
}
double d;
}

View File

@@ -1,22 +0,0 @@
class JSException extends RuntimeException {
JSException(JSValue x)
{
value = x;
}
JSValue getValue()
{
return value;
}
public String toString()
{
return value.toJSString(null).s;
}
JSValue value;
}

File diff suppressed because it is too large Load Diff

View File

@@ -1,23 +0,0 @@
class JSIdentifier extends JSString {
JSIdentifier(String s)
{
super(s);
}
String print(String indent)
{
return indent + "JSIdentifier : " + s + "\n";
}
JSValue eval(Environment theEnv)
{
return theEnv.scope.getProp(theEnv, this);
}
JSReference evalLHS(Environment theEnv)
{
return new JSReference(theEnv.scope, this);
}
}

View File

@@ -1,68 +0,0 @@
class JSInteger extends JSNumber {
JSInteger(String s)
{
i = new Integer(s).intValue();
}
JSInteger(int p)
{
i = p;
}
JSValue eval(Environment theEnv)
{
return this;
}
JSBoolean toJSBoolean(Environment theEnv) {
return (i != 0) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
}
JSDouble toJSDouble(Environment theEnv) {
return new JSDouble(i);
}
JSInteger toJSInteger(Environment theEnv) {
return this;
}
JSValue toPrimitive(Environment theEnv, String hint) {
return this;
}
JSString toJSString(Environment theEnv) {
return new JSString(Integer.toString(i));
}
JSValue twiddle(Environment theEnv) {
return new JSInteger(~i);
}
JSValue and(Environment theEnv, JSValue rV) {
return new JSInteger(i & rV.toJSInteger(theEnv).i);
}
JSValue or(Environment theEnv, JSValue rV) {
return new JSInteger(i | rV.toJSInteger(theEnv).i);
}
JSValue xor(Environment theEnv, JSValue rV) {
return new JSInteger(i ^ rV.toJSInteger(theEnv).i);
}
JSValue shl(Environment theEnv, JSValue rV) {
return new JSInteger(i >> rV.toJSInteger(theEnv).i);
}
JSValue shr(Environment theEnv, JSValue rV) {
return new JSInteger(i << rV.toJSInteger(theEnv).i);
}
JSValue ushl(Environment theEnv, JSValue rV) {
return new JSInteger(i >>> rV.toJSInteger(theEnv).i);
}
int i;
}

View File

@@ -1,41 +0,0 @@
class JSName extends ExpressionNode {
JSName(JSIdentifier anID, int aScope)
{
id = anID;
scope = aScope; // this is the scope that the name was used in
}
String print(String indent)
{
return indent + "JSName : " + id.s + ", scope : " + scope + "\n";
}
JSReference evalLHS(Environment theEnv)
{
JSScope scope = theEnv.scope;
while (scope != null) {
if (scope.hasProp(theEnv, id))
return new JSReference(scope, id);
else
scope = scope.parent;
}
return new JSReference(theEnv.globalScope, id);
}
JSValue eval(Environment theEnv)
{
JSScope scope = theEnv.scope;
while (scope != null) {
if (scope.hasProp(theEnv, id))
return scope.getProp(theEnv, id);
else
scope = scope.parent;
}
throw new JSException(new JSString(id.s + " undefined"));
}
JSIdentifier id;
int scope;
}

View File

@@ -1,8 +0,0 @@
abstract class JSNumber extends JSValue {
JSValue typeof(Environment theEnv) {
return new JSString("number");
}
}

View File

@@ -1,84 +0,0 @@
import java.util.Hashtable;
class JSObject extends JSValue {
static JSObject objectPrototype = new JSObject("Object");
static JSObject JSUndefined = new JSObject("undefined");
JSObject(String aClass)
{
oClass = aClass;
prototype = objectPrototype;
}
void setPrototype(JSObject aPrototype)
{
prototype = aPrototype;
}
String print(String indent)
{
return indent + "JSObject : " + oClass + "\n";
}
public String toString() {
return oClass + contents.toString();
}
JSValue eval(Environment theEnv)
{
return this;
}
JSValue typeof(Environment theEnv) {
if (this == JSUndefined)
return new JSString("undefined");
else
return new JSString("object");
}
JSBoolean toJSBoolean(Environment theEnv) {
return JSBoolean.JSTrue;
}
JSDouble toJSDouble(Environment theEnv) {
return toPrimitive(theEnv, "Number").toJSDouble(theEnv);
}
JSValue getProp(Environment theEnv, JSString id)
{
Object v = contents.get(id.s);
if (v == null)
if (prototype == null)
return JSUndefined;
else
return prototype.getProp(theEnv, id);
else
return (JSValue)v;
}
boolean hasProp(Environment theEnv, JSString id)
{
Object v = contents.get(id.s);
if (v == null)
if (prototype == null)
return false;
else
return prototype.hasProp(theEnv, id);
else
return true;
}
JSValue putProp(Environment theEnv, JSString id, JSValue rV) {
contents.put(id.s, rV);
return rV;
}
Hashtable contents = new Hashtable();
String oClass;
JSObject prototype;
}

View File

@@ -1,12 +0,0 @@
class JSReference {
JSReference(JSValue aBase, JSString aID)
{
base = aBase;
id = aID;
}
JSValue base;
JSString id;
}

View File

@@ -1,10 +0,0 @@
class JSScope extends JSObject {
JSScope(String s)
{
super(s);
}
JSScope parent;
}

View File

@@ -1,83 +0,0 @@
class JSString extends JSValue {
JSString(String p)
{
s = p;
}
JSValue eval(Environment theEnv)
{
return this;
}
JSValue typeof(Environment theEnv) {
return new JSString("string");
}
JSValue add(Environment theEnv, JSValue rV)
{
return new JSString(s + rV.toJSString(theEnv).s);
}
JSValue gt(Environment theEnv, JSValue rV) {
if (rV instanceof JSString)
return (s.compareTo(rV.toJSString(theEnv).s) == 1) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
else
return toJSDouble(theEnv).gt(theEnv, rV);
}
JSValue ge(Environment theEnv, JSValue rV) {
if (rV instanceof JSString)
return (s.compareTo(rV.toJSString(theEnv).s) != -1) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
else
return toJSDouble(theEnv).ge(theEnv, rV);
}
JSValue lt(Environment theEnv, JSValue rV) {
if (rV instanceof JSString)
return (s.compareTo(rV.toJSString(theEnv).s) == -1) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
else
return toJSDouble(theEnv).lt(theEnv, rV);
}
JSValue le(Environment theEnv, JSValue rV) {
if (rV instanceof JSString)
return (s.compareTo(rV.toJSString(theEnv).s) != 1) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
else
return toJSDouble(theEnv).le(theEnv, rV);
}
JSValue eq(Environment theEnv, JSValue rV) {
if (rV instanceof JSString)
return (s.compareTo(rV.toJSString(theEnv).s) == 0) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
else
return toJSDouble(theEnv).eq(theEnv, rV);
}
JSValue ne(Environment theEnv, JSValue rV) {
if (rV instanceof JSString)
return (s.compareTo(rV.toJSString(theEnv).s) != 0) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
else
return toJSDouble(theEnv).ne(theEnv, rV);
}
JSDouble toJSDouble(Environment theEnv) {
return new JSDouble(s); // XXX Way More To Do, see Rhino ScriptRuntime.java
}
JSString toJSString(Environment theEnv) {
return this;
}
JSValue toPrimitive(Environment theEnv, String hint) {
return this;
}
String print(String indent)
{
return indent + "JSString : " + s + "\n";
}
protected String s;
}

View File

@@ -1,222 +0,0 @@
class JSValue extends ExpressionNode {
String print(String indent)
{
return indent + "JSValue\n";
}
JSReference evalLHS(Environment theEnv)
{
throw new RuntimeException("EvalLHS on non-lvalue");
}
JSValue eval(Environment theEnv)
{
throw new RuntimeException("Eval on JSValue");
}
JSValue unimplemented(String op)
{
throw new RuntimeException("unimplemented " + op + " called");
}
JSValue gt(Environment theEnv, JSValue rV) {
JSValue lV = toPrimitive(theEnv, "Number");
rV = rV.toPrimitive(theEnv, "Number");
if ((lV instanceof JSString) && (rV instanceof JSString))
return lV.gt(theEnv, rV);
else
return lV.toJSDouble(theEnv).gt(theEnv, rV.toJSDouble(theEnv));
}
JSValue ge(Environment theEnv, JSValue rV) {
JSValue lV = toPrimitive(theEnv, "Number");
rV = rV.toPrimitive(theEnv, "Number");
if ((lV instanceof JSString) && (rV instanceof JSString))
return lV.ge(theEnv, rV);
else
return lV.toJSDouble(theEnv).ge(theEnv, rV.toJSDouble(theEnv));
}
JSValue lt(Environment theEnv, JSValue rV) {
JSValue lV = toPrimitive(theEnv, "Number");
rV = rV.toPrimitive(theEnv, "Number");
if ((lV instanceof JSString) && (rV instanceof JSString))
return lV.lt(theEnv, rV);
else
return lV.toJSDouble(theEnv).lt(theEnv, rV.toJSDouble(theEnv));
}
JSValue le(Environment theEnv, JSValue rV) {
JSValue lV = toPrimitive(theEnv, "Number");
rV = rV.toPrimitive(theEnv, "Number");
if ((lV instanceof JSString) && (rV instanceof JSString))
return lV.le(theEnv, rV);
else
return lV.toJSDouble(theEnv).le(theEnv, rV.toJSDouble(theEnv));
}
JSValue eq(Environment theEnv, JSValue rV) {
JSValue lV = toPrimitive(theEnv, "Number");
rV = rV.toPrimitive(theEnv, "Number");
if ((lV instanceof JSString) && (rV instanceof JSString))
return lV.eq(theEnv, rV);
else
return lV.toJSDouble(theEnv).eq(theEnv, rV.toJSDouble(theEnv));
}
JSValue ne(Environment theEnv, JSValue rV) {
JSValue lV = toPrimitive(theEnv, "Number");
rV = rV.toPrimitive(theEnv, "Number");
if ((lV instanceof JSString) && (rV instanceof JSString))
return lV.ne(theEnv, rV);
else
return lV.toJSDouble(theEnv).ne(theEnv, rV.toJSDouble(theEnv));
}
JSValue plus(Environment theEnv) {
return toJSDouble(theEnv).plus(theEnv);
}
JSValue minus(Environment theEnv) {
return toJSDouble(theEnv).minus(theEnv);
}
JSValue twiddle(Environment theEnv) {
return toJSInteger(theEnv).twiddle(theEnv);
}
JSValue bang(Environment theEnv) {
return toJSBoolean(theEnv).bang(theEnv);
}
JSValue typeof(Environment theEnv) {
return unimplemented("typeof");
}
JSValue add(Environment theEnv, JSValue rV) {
JSValue lV = toPrimitive(theEnv, "");
rV = rV.toPrimitive(theEnv, "");
if ((lV instanceof JSString) || (rV instanceof JSString))
return lV.add(theEnv, rV);
else
return lV.toJSDouble(theEnv).add(theEnv, rV);
}
JSValue subtract(Environment theEnv, JSValue rV) {
return toJSDouble(theEnv).subtract(theEnv, rV.toJSDouble(theEnv));
}
JSValue multiply(Environment theEnv, JSValue rV) {
return toJSDouble(theEnv).multiply(theEnv, rV.toJSDouble(theEnv));
}
JSValue divide(Environment theEnv, JSValue rV) {
return toJSDouble(theEnv).divide(theEnv, rV.toJSDouble(theEnv));
}
JSValue remainder(Environment theEnv, JSValue rV) {
return toJSDouble(theEnv).remainder(theEnv, rV.toJSDouble(theEnv));
}
JSValue and(Environment theEnv, JSValue rV) {
return toJSInteger(theEnv).and(theEnv, rV.toJSInteger(theEnv));
}
JSValue or(Environment theEnv, JSValue rV) {
return toJSInteger(theEnv).or(theEnv, rV.toJSInteger(theEnv));
}
JSValue xor(Environment theEnv, JSValue rV) {
return toJSInteger(theEnv).xor(theEnv, rV.toJSInteger(theEnv));
}
JSValue shl(Environment theEnv, JSValue rV) {
return toJSInteger(theEnv).shl(theEnv, rV.toJSInteger(theEnv));
}
JSValue shr(Environment theEnv, JSValue rV) {
return toJSInteger(theEnv).shr(theEnv, rV.toJSInteger(theEnv));
}
JSValue ushl(Environment theEnv, JSValue rV) {
return toJSInteger(theEnv).ushl(theEnv, rV.toJSInteger(theEnv));
}
JSValue getProp(Environment theEnv, JSString id) {
return toJSObject(theEnv).getProp(theEnv, id);
}
boolean hasProp(Environment theEnv, JSString id) {
return toJSObject(theEnv).hasProp(theEnv, id);
}
JSValue putProp(Environment theEnv, JSString id, JSValue rV) {
return toJSObject(theEnv).putProp(theEnv, id, rV);
}
JSValue call(Environment theEnv, JSValue rV) {
throw new JSException(new JSString("[[call]] not implemented"));
}
JSValue defaultValue(Environment theEnv, String hint) {
/*
When the [[DefaultValue]] method of O is called with hint String, the following steps are taken:
1. Call the [[Get]] method of object O with argument "toString".
2. If Result(1) is not an object, go to step 5.
3. Call the [[Call]] method of Result(1), with O as the this value and an empty argument list.
4. If Result(3) is a primitive value, return Result(3).
5. Call the [[Get]] method of object O with argument "valueOf".
6. If Result(5) is not an object, go to step 9.
7. Call the [[Call]] method of Result(5), with O as the this value and an empty argument list.
8. If Result(7) is a primitive value, return Result(7).
9. Generate a runtime error.
*/
JSValue v = null;
if (hint.equals("String")) {
v = getProp(theEnv, new JSString("toString"));
if (v instanceof JSObject) {
// invoke 'v.Call' with 'this' as the JS this
}
else {
v = getProp(theEnv, new JSString("valueOf"));
if (v instanceof JSObject) {
}
else
throw new JSException(new JSString("No default value"));
}
}
else { // hint.equals("Number")
/*
When the [[DefaultValue]] method of O is called with hint Number, the following steps are taken:
1. Call the [[Get]] method of object O with argument "valueOf".
2. If Result(1) is not an object, go to step 5.
3. Call the [[Call]] method of Result(1), with O as the this value and an empty argument list.
4. If Result(3) is a primitive value, return Result(3).
5. Call the [[Get]] method of object O with argument "toString".
6. If Result(5) is not an object, go to step 9.
7. Call the [[Call]] method of Result(5), with O as the this value and an empty argument list.
8. If Result(7) is a primitive value, return Result(7).
9. Generate a runtime error.
*/
}
return null;
}
JSValue toPrimitive(Environment theEnv, String hint) {
JSValue result = defaultValue(theEnv, hint);
if (result instanceof JSObject)
throw new JSException(new JSString("default value returned object"));
else
return result;
}
JSObject toJSObject(Environment theEnv) { unimplemented("toJSObjet"); return null; }
JSDouble toJSDouble(Environment theEnv) { unimplemented("toJSDouble"); return null; }
JSInteger toJSInteger(Environment theEnv) { unimplemented("toJSInteger"); return null; }
JSString toJSString(Environment theEnv) { unimplemented("toJSString"); return null; }
JSBoolean toJSBoolean(Environment theEnv) { unimplemented("toJSBoolean"); return null; }
}

View File

@@ -1,40 +0,0 @@
import java.util.Vector;
class JSValueList extends JSValue {
static JSValueList buildList(JSValue left, JSValue right)
{
JSValueList theList;
if (left instanceof JSValueList) {
theList = (JSValueList)left;
theList.add(right);
}
else
if (right instanceof JSValueList) {
theList = (JSValueList)right;
theList.add(left);
}
else {
theList = new JSValueList();
theList.add(left);
theList.add(right);
}
return theList;
}
void add(JSValue v)
{
if (v instanceof JSValueList) {
JSValueList vl = (JSValueList)v;
for (int i = 0; i < vl.contents.size(); i++)
contents.addElement((JSValue)(vl.contents.elementAt(i)));
}
else
contents.addElement(v);
}
Vector contents = new Vector();
}

View File

@@ -1,39 +0,0 @@
class LogicalNode extends BinaryNode {
LogicalNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
{
super(aOp, aLeft, aRight);
}
JSValue eval(Environment theEnv)
{
JSBoolean b = left.eval(theEnv).toJSBoolean(theEnv);
if (op == "&&") {
if (b.isFalse())
return b;
else {
b = right.eval(theEnv).toJSBoolean(theEnv);
if (b.isFalse())
return b;
else
return JSBoolean.JSTrue;
}
}
if (op == "||") {
if (b.isTrue())
return b;
else {
b = right.eval(theEnv).toJSBoolean(theEnv);
if (b.isTrue())
return b;
else
return JSBoolean.JSFalse;
}
}
else {
System.out.println("missing logical op " + op);
return null;
}
}
}

View File

@@ -1,35 +0,0 @@
import java.util.Vector;
class NativeFunction extends JSObject {
NativeFunction(ControlNode aBody)
{
super("Function");
body = aBody;
}
JSValue call(Environment theEnv, JSValue rV)
{
JSScope args = new JSScope("Arguments");
theEnv.enterNewScope(args);
for (int i = 0; i < parameters.size(); i++) {
if (rV instanceof JSValueList)
args.putProp(theEnv, (JSString)(parameters.elementAt(i)), (JSValue) ( ((JSValueList)rV).contents.elementAt(i)) );
else
args.putProp(theEnv, (JSString)(parameters.elementAt(i)), rV );
}
ControlNode c = body;
while (c != null) c = c.eval(theEnv);
theEnv.leaveScope();
return theEnv.resultValue;
}
ControlNode body;
Vector parameters = new Vector();
}

View File

@@ -1,18 +0,0 @@
class NativeNumber extends JSObject {
NativeNumber(double p) {
super("Number");
d = p;
}
JSValue defaultValue(Environment theEnv, String hint) {
if (hint.equals("String"))
return new JSString(Double.toString(d));
else
return new JSDouble(d);
}
double d;
}

View File

@@ -1,35 +0,0 @@
class RelationalNode extends BinaryNode {
RelationalNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
{
super(aOp, aLeft, aRight);
}
JSValue eval(Environment theEnv)
{
JSValue lV = left.eval(theEnv);
JSValue rV = right.eval(theEnv);
if (op == ">")
return lV.gt(theEnv, rV);
else
if (op == ">=")
return lV.ge(theEnv, rV);
else
if (op == "<")
return lV.lt(theEnv, rV);
else
if (op == "<=")
return lV.le(theEnv, rV);
else
if (op == "==")
return lV.eq(theEnv, rV);
else
if (op == "!=")
return lV.ne(theEnv, rV);
else {
System.out.println("missing relational op");
return null;
}
}
}

View File

@@ -1,43 +0,0 @@
import java.util.Vector;
class SwitchNode extends ControlNode {
SwitchNode(ExpressionNode e)
{
super(e);
}
void addCase(ExpressionNode e, ControlNode c)
{
if (e == null)
defaultCode = c;
else {
caseExpr.addElement(e);
caseCode.addElement(c);
}
}
ControlNode eval(Environment theEnv)
{
JSValue v = expr.eval(theEnv);
int count = caseExpr.size();
for (int i = 0; i < count; i++) {
ExpressionNode e = (ExpressionNode)(caseExpr.elementAt(i));
JSBoolean b = v.eq(theEnv, e.eval(theEnv)).toJSBoolean(theEnv);
if (b.isTrue())
return (ControlNode)(caseCode.elementAt(i));
}
if (defaultCode != null)
return defaultCode;
else
return next;
}
Vector caseExpr = new Vector();
Vector caseCode = new Vector();
ControlNode defaultCode;
}

View File

@@ -1,13 +0,0 @@
class ThrowNode extends ControlNode {
ThrowNode(ExpressionNode e)
{
super(e);
}
ControlNode eval(Environment theEnv)
{
throw new JSException(expr.eval(theEnv));
}
}

View File

@@ -1,47 +0,0 @@
import java.util.Vector;
class TryNode extends ControlNode {
TryNode(ControlNode tryCode)
{
super(null);
tryBody = tryCode;
}
void addFinally(ControlNode finallyCode)
{
finallyBody = finallyCode;
}
void addCatchClause(ExpressionNode e, ControlNode c)
{
catchExpr.addElement(e);
catchCode.addElement(c);
}
ControlNode eval(Environment theEnv)
{
try {
ControlNode c = tryBody;
while (c != null) c = c.eval(theEnv);
}
catch (JSException x) {
int count = catchExpr.size();
for (int i = 0; i < count; i++) {
ExpressionNode e = (ExpressionNode)(catchExpr.elementAt(i));
String id = ((JSObject)e).oClass;
theEnv.scope.contents.put(id, x.getValue()); // XXX YAARGH !!!
return (ControlNode)(catchCode.elementAt(i));
}
}
return next;
}
Vector catchExpr = new Vector();
Vector catchCode = new Vector();
ControlNode tryBody;
ControlNode finallyBody;
}

View File

@@ -1,62 +0,0 @@
class UnaryNode extends ExpressionNode {
UnaryNode(String aOp, ExpressionNode aChild)
{
child = aChild;
op = aOp;
}
String print(String indent)
{
StringBuffer result = new StringBuffer(indent);
result.append("UnaryNode ");
result.append(op);
result.append("\n");
indent += " ";
if (child == null) {
result.append(indent);
result.append("null\n");
}
else
result.append(child.print(indent));
return result.toString();
}
JSValue eval(Environment theEnv)
{
JSValue cV = child.eval(theEnv);
if (op == "+")
return cV.plus(theEnv);
else
if (op == "-")
return cV.minus(theEnv);
else
if (op == "~")
return cV.twiddle(theEnv);
else
if (op == "!")
return cV.bang(theEnv);
else
if (op == "typeof")
return cV.typeof(theEnv);
else {
System.out.println("missing unary op " + op);
return null;
}
}
String getOperator()
{
return op;
}
ExpressionNode getChild()
{
return child;
}
protected ExpressionNode child;
protected String op;
}

View File

@@ -1,343 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 1998 Netscape Communications Corporation. All
// Rights Reserved.
//
// JS2 shell.
//
#if 1
#define DEBUGGER_FOO
#define INTERPRET_INPUT
#else
#undef DEBUGGER_FOO
#undef INTERPRET_INPUT
#endif
#include <assert.h>
#include "world.h"
#include "interpreter.h"
#include "icodegenerator.h"
#ifdef DEBUGGER_FOO
#include "debugger.h"
#endif
#if defined(XP_MAC) && !defined(XP_MAC_MPW)
#include <SIOUX.h>
#include <MacTypes.h>
static char *mac_argv[] = {"js2", 0};
static void initConsole(StringPtr consoleName,
const char* startupMessage,
int &argc, char **&argv)
{
SIOUXSettings.autocloseonquit = false;
SIOUXSettings.asktosaveonclose = false;
SIOUXSetTitle(consoleName);
// Set up a buffer for stderr (otherwise it's a pig).
static char buffer[BUFSIZ];
setvbuf(stderr, buffer, _IOLBF, BUFSIZ);
JavaScript::stdOut << startupMessage;
argc = 1;
argv = mac_argv;
}
#endif
namespace JavaScript {
namespace Shell {
using namespace ICG;
using namespace JSTypes;
using namespace Interpreter;
// Interactively read a line from the input stream in and put it into
// s. Return false if reached the end of input before reading anything.
static bool promptLine(LineReader &inReader, string &s, const char *prompt)
{
if (prompt) {
stdOut << prompt;
#ifdef XP_MAC_MPW
// Print a CR after the prompt because MPW grabs the entire
// line when entering an interactive command.
stdOut << '\n';
#endif
}
return inReader.readLine(s) != 0;
}
World world;
/* "filename" of the console */
const String ConsoleName = widenCString("<console>");
const bool showTokens = false;
#ifdef DEBUGGER_FOO
Reader *sourceReader; /* Reader for console file */
static
const Reader *ResolveFile (const String& fileName)
{
if (fileName == ConsoleName)
return sourceReader;
else
{
stdErr << "Could not locate source for file '" << fileName << "'\n";
return 0;
}
}
JavaScript::Debugger::Shell jsd(world, stdin, JavaScript::stdOut,
JavaScript::stdOut, &ResolveFile);
#endif
static JSValue print(Context *cx, const JSValues &argv)
{
size_t n = argv.size();
if (n > 1) { // the 'this' parameter is un-interesting
stdOut << argv[1];
for (size_t i = 2; i < n; ++i)
stdOut << ' ' << argv[i];
}
stdOut << "\n";
return kUndefinedValue;
}
static JSValue dump(Context *cx, const JSValues &argv)
{
size_t n = argv.size();
if (n > 1) { // the 'this' parameter is un-interesting
if (argv[1].isFunction()) {
JSFunction *f = static_cast<JSFunction *>(argv[1].function);
if (f->isNative())
stdOut << "Native function";
else
stdOut << *f->getICode();
}
else
stdOut << "Not a function";
}
stdOut << "\n";
return kUndefinedValue;
}
inline char narrow(char16 ch) { return char(ch); }
static JSValue load(Context *cx, const JSValues &argv)
{
JSValue result;
size_t n = argv.size();
if (n > 1) {
for (size_t i = 1; i < n; ++i) {
JSValue val = argv[i].toString();
if (val.isString()) {
String fileName(*val.string);
std::string str(fileName.length(), char());
std::transform(fileName.begin(), fileName.end(), str.begin(), narrow);
FILE* f = fopen(str.c_str(), "r");
if (f) {
result = cx->readEvalFile(f, fileName);
fclose(f);
}
}
}
}
return result;
}
#if 0 // need a XP version of this, rip off from Monkey?
#include <sys/timeb.h>
static JSValue time(Context *cx, const JSValues &argv)
{
struct _timeb timebuffer;
_ftime(&timebuffer);
return JSValue((double)timebuffer.time * 1000 + timebuffer.millitm);
}
#endif
static void readEvalPrint(FILE *in, World &world)
{
JSScope global;
Context cx(world, &global);
#ifdef DEBUGGER_FOO
jsd.attachToContext (&cx);
#endif
global.defineNativeFunction(world.identifiers["print"], print);
global.defineNativeFunction(world.identifiers["dump"], dump);
global.defineNativeFunction(world.identifiers["load"], load);
// global.defineNativeFunction(world.identifiers["time"], time);
String buffer;
string line;
LineReader inReader(in);
while (promptLine(inReader, line, buffer.empty() ? "js> " : "> ")) {
appendChars(buffer, line.data(), line.size());
try {
Arena a;
Parser p(world, a, buffer, ConsoleName);
if (showTokens) {
Lexer &l = p.lexer;
while (true) {
const Token &t = l.get(true);
if (t.hasKind(Token::end))
break;
stdOut << ' ';
t.print(stdOut, true);
}
stdOut << '\n';
} else {
StmtNode *parsedStatements = p.parseProgram();
ASSERT(p.lexer.peek(true).hasKind(Token::end));
{
PrettyPrinter f(stdOut, 30);
{
PrettyPrinter::Block b(f, 2);
f << "Program =";
f.linearBreak(1);
StmtNode::printStatements(f, parsedStatements);
}
f.end();
}
stdOut << '\n';
#ifdef INTERPRET_INPUT
#ifdef DEBUGGER_FOO
sourceReader = &(p.lexer.reader);
#endif
// Generate code for parsedStatements, which is a linked
// list of zero or more statements
ICodeModule* icm = cx.genCode(parsedStatements, ConsoleName);
if (icm) {
stdOut << *icm;
JSValue result = cx.interpret(icm, JSValues());
stdOut << "result = " << result << "\n";
delete icm;
}
#endif
}
clear(buffer);
} catch (Exception &e) {
/* If we got a syntax error on the end of input,
* then wait for a continuation
* of input rather than printing the error message. */
if (!(e.hasKind(Exception::syntaxError) &&
e.lineNum && e.pos == buffer.size() &&
e.sourceFile == ConsoleName)) {
stdOut << '\n' << e.fullMessage();
clear(buffer);
}
}
}
stdOut << '\n';
}
/**
* Poor man's instruction tracing facility.
*/
class Tracer : public Context::Listener {
typedef InstructionStream::difference_type InstructionOffset;
void listen(Context* context, Context::Event event)
{
if (event & Context::EV_STEP) {
ICodeModule *iCode = context->getICode();
JSValues &registers = context->getRegisters();
InstructionIterator pc = context->getPC();
InstructionOffset offset = (pc - iCode->its_iCode->begin());
printFormat(stdOut, "trace [%02u:%04u]: ",
iCode->mID, offset);
Instruction* i = *pc;
stdOut << *i;
if (i->op() != BRANCH && i->count() > 0) {
stdOut << " [";
i->printOperands(stdOut, registers);
stdOut << "]\n";
} else {
stdOut << '\n';
}
}
}
};
char * tests[] = {
"function fact(n) { if (n > 1) return n * fact(n-1); else return 1; } print(fact(6), \" should be 720\"); return;" ,
"a = { f1: 1, f2: 2}; print(a.f2++, \" should be 2\"); print(a.f2 <<= 1, \" should be 6\"); return;" ,
"class A { static var b = 3; static function s() { return b++; }function x() { return \"Ax\"; } function y() { return \"Ay\"; } } var a:A = new A; print(a.s(), \" should be 3\"); print(A.b, \" should be 4\"); return;",
"class B extends A { function x() { return \"Bx\"; } } var b:B = new B; print(b.x(), \" should be Bx\"); print(b.y(), \" should be Ay\"); return;"
};
static void testCompile()
{
JSScope glob;
Context cx(world, &glob);
glob.defineNativeFunction(world.identifiers["print"], print);
for (uint i = 0; i < sizeof(tests) / sizeof(char *); i++) {
String testScript = widenCString(tests[i]);
Arena a;
Parser p(world, a, testScript, widenCString("testCompile"));
StmtNode *parsedStatements = p.parseProgram();
ICodeGenerator icg(&world, &glob);
StmtNode *s = parsedStatements;
while (s) {
icg.genStmt(s);
s = s->next;
}
cx.interpret(icg.complete(), JSValues());
}
}
} /* namespace Shell */
} /* namespace JavaScript */
#if defined(XP_MAC) && !defined(XP_MAC_MPW)
int main(int argc, char **argv)
{
initConsole("\pJavaScript Shell", "Welcome to the js2 shell.\n", argc, argv);
#else
int main(int , char **)
{
#endif
using namespace JavaScript;
using namespace Shell;
#if 1
testCompile();
#endif
readEvalPrint(stdin, world);
return 0;
// return ProcessArgs(argv + 1, argc - 1);
}

View File

@@ -1,316 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsclasses_h
#define jsclasses_h
#include "jstypes.h"
namespace JavaScript {
namespace JSClasses {
using JSTypes::JSValue;
using JSTypes::JSObject;
using JSTypes::JSType;
using JSTypes::JSScope;
using JSTypes::JSFunction;
using ICG::ICodeModule;
struct JSSlot {
typedef enum { kNoFlag = 0, kIsConstructor = 0x01 } SlotFlags; // <-- readonly, enumerable etc
JSType* mType;
uint32 mIndex;
SlotFlags mFlags;
JSSlot() : mType(0), mFlags(kNoFlag)
{
}
bool isConstructor() const { return (mFlags & kIsConstructor) != 0; }
};
#if defined(XP_MAC)
// copied from default template parameters in map.
typedef gc_allocator<std::pair<const String, JSSlot> > gc_slot_allocator;
#elif defined(XP_UNIX)
typedef JSTypes::gc_map_allocator gc_slot_allocator;
#elif defined(_WIN32)
typedef gc_allocator<JSSlot> gc_slot_allocator;
#endif
typedef std::map<String, JSSlot, std::less<const String>, gc_slot_allocator> JSSlots;
typedef std::pair<String, JSFunction*> MethodEntry;
typedef std::vector<MethodEntry> JSMethods;
/**
* Represents a class in the JavaScript 2 (ECMA 4) language.
* Since a class defines a scope, and is defined in a scope,
* a new scope is created whose parent scope is the scope of
* class definition.
*/
class JSClass : public JSType {
protected:
JSScope* mScope;
uint32 mSlotCount;
JSSlots mSlots;
uint32 mStaticCount;
JSSlots mStaticSlots;
JSValue* mStaticData;
JSMethods mMethods;
public:
JSClass(JSScope* scope, const String& name, JSClass* superClass = 0)
: JSType(name, superClass),
mScope(new JSScope(scope)),
mSlotCount(superClass ? superClass->mSlotCount : 0),
mStaticCount(0),
mStaticData(0)
{
if (superClass) {
// inherit superclass methods
JSMethods::iterator end = superClass->mMethods.end();
for (JSMethods::iterator i = superClass->mMethods.begin(); i != end; i++)
mMethods.push_back(*i);
}
}
JSClass* getSuperClass()
{
return static_cast<JSClass*>(mBaseType);
}
JSScope* getScope()
{
return mScope;
}
const JSSlot& defineSlot(const String& name, JSType* type)
{
JSSlot& slot = mSlots[name];
ASSERT(slot.mType == 0);
slot.mType = type;
slot.mIndex = mSlotCount++; // starts at 0.
return slot;
}
const JSSlot& getSlot(const String& name)
{
return mSlots[name];
}
bool hasSlot(const String& name)
{
return (mSlots.find(name) != mSlots.end());
}
JSSlots& getSlots()
{
return mSlots;
}
uint32 getSlotCount()
{
return mSlotCount;
}
/**
* Define a static/class variable.
*/
const JSSlot& defineStatic(const String& name, JSType* type)
{
JSSlot& slot = mStaticSlots[name];
ASSERT(slot.mType == 0);
slot.mType = type;
slot.mIndex = mStaticCount++;
return slot;
}
const JSSlot& defineConstructor(const String& name)
{
JSSlot& slot = mStaticSlots[name];
ASSERT(slot.mType == 0);
slot.mType = &JSTypes::Function_Type;
slot.mIndex = mStaticCount++;
slot.mFlags = JSSlot::kIsConstructor;
return slot;
}
const JSSlot& getStatic(const String& name)
{
return mStaticSlots[name];
}
bool hasStatic(const String& name, JSType*& type, bool &isConstructor)
{
JSSlots::const_iterator i = mStaticSlots.find(name);
if (i != mStaticSlots.end()) {
type = i->second.mType;
isConstructor = i->second.isConstructor();
return true;
}
return false;
}
bool hasStatic(const String& name)
{
return (mStaticSlots.find(name) != mStaticSlots.end());
}
bool complete()
{
mStaticData = new JSValue[mStaticCount];
return (mStaticData != 0);
}
JSValue& operator[] (uint32 index)
{
return mStaticData[index];
}
virtual void printProperties(Formatter& f)
{
f << "Properties:\n";
JSObject::printProperties(f);
f << "Statics:\n";
printStatics(f);
}
void printStatics(Formatter& f)
{
JSClass* superClass = getSuperClass();
if (superClass) superClass->printStatics(f);
for (JSSlots::iterator i = mStaticSlots.begin(), end = mStaticSlots.end(); i != end; ++i) {
f << i->first << " : " << mStaticData[i->second.mIndex] << "\n";
}
}
void defineMethod(const String& name, JSFunction *f)
{
uint32 slot;
if (hasMethod(name, slot))
mMethods[slot] = MethodEntry(name, f);
else
mMethods.push_back(MethodEntry(name, f));
}
bool hasMethod(const String& name, uint32& index)
{
JSMethods::iterator end = mMethods.end();
for (JSMethods::iterator i = mMethods.begin(); i != end; i++) {
if (i->first == name) {
index = i - mMethods.begin();
return true;
}
}
return false;
}
JSFunction* getMethod(uint32 index)
{
return mMethods[index].second;
}
};
/**
* Represents an instance of a JSClass.
*/
class JSInstance : public JSObject {
protected:
JSValue mSlots[1];
public:
void* operator new(size_t n, JSClass* thisClass)
{
uint32 slotCount = thisClass->getSlotCount();
if (slotCount > 0) n += sizeof(JSValue) * (slotCount - 1);
return gc_base::operator new(n);
}
#if !defined(XP_MAC)
void operator delete(void* /*ptr*/, JSClass* /*thisClass*/) {}
#endif
JSInstance(JSClass* thisClass)
{
mType = thisClass;
// initialize extra slots with undefined.
uint32 slotCount = thisClass->getSlotCount();
if (slotCount > 0) {
std::uninitialized_fill(&mSlots[1], &mSlots[1] + (slotCount - 1),
JSTypes::kUndefinedValue);
}
// for grins, use the prototype link to access methods.
setPrototype(thisClass->getScope());
}
JSFunction* getMethod(uint32 index)
{
return getClass()->getMethod(index);
}
JSClass* getClass()
{
return static_cast<JSClass*>(mType);
}
JSValue& operator[] (uint32 index)
{
return mSlots[index];
}
virtual void printProperties(Formatter& f)
{
f << "Properties:\n";
JSObject::printProperties(f);
f << "Slots:\n";
printSlots(f, getClass());
}
private:
void printSlots(Formatter& f, JSClass* thisClass)
{
JSClass* superClass = thisClass->getSuperClass();
if (superClass) printSlots(f, superClass);
JSSlots& slots = thisClass->getSlots();
for (JSSlots::iterator i = slots.begin(), end = slots.end(); i != end; ++i) {
f << i->first << " : " << mSlots[i->second.mIndex] << "\n";
}
}
};
} /* namespace JSClasses */
} /* namespace JavaScript */
#endif /* jsclasses_h */

View File

@@ -1,208 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#include <math.h>
#include "jsmath.h"
namespace JavaScript {
namespace JSMathClass {
using namespace JSTypes;
#ifndef M_E
#define M_E 2.7182818284590452354
#endif
#ifndef M_LOG2E
#define M_LOG2E 1.4426950408889634074
#endif
#ifndef M_LOG10E
#define M_LOG10E 0.43429448190325182765
#endif
#ifndef M_LN2
#define M_LN2 0.69314718055994530942
#endif
#ifndef M_LN10
#define M_LN10 2.30258509299404568402
#endif
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#ifndef M_SQRT2
#define M_SQRT2 1.41421356237309504880
#endif
#ifndef M_SQRT1_2
#define M_SQRT1_2 0.70710678118654752440
#endif
/*
Concept copied from SpiderMonkey -
fd_XXX needs to be defined either as a call to the fdlibm routine
or the native C library routine depending on the platform
*/
#define JS_USE_FDLIBM_MATH 0
#if !JS_USE_FDLIBM_MATH
/*
* Use system provided math routines.
*/
#define fd_acos acos
#define fd_asin asin
#define fd_atan atan
#define fd_atan2 atan2
#define fd_ceil ceil
#define fd_copysign copysign
#define fd_cos cos
#define fd_exp exp
#define fd_fabs fabs
#define fd_floor floor
#define fd_fmod fmod
#define fd_log log
#define fd_pow pow
#define fd_sin sin
#define fd_sqrt sqrt
#define fd_tan tan
#endif
JSValue math_abs(Context *cx, const JSValues& argv)
{
if (argv.size() > 0) {
JSValue num = argv[1].toNumber();
if (num.isNaN()) return num;
if (num.isNegativeZero()) return kPositiveZero;
if (num.isNegativeInfinity()) return kPositiveInfinity;
if (num.f64 < 0) return JSValue(-num.f64);
return num;
}
return kUndefinedValue;
}
JSValue math_acos(Context *cx, const JSValues& argv)
{
if (argv.size() > 0) {
JSValue num = argv[1].toNumber();
return JSValue(fd_acos(num.f64));
}
return kUndefinedValue;
}
JSValue math_asin(Context *cx, const JSValues& argv)
{
if (argv.size() > 0) {
JSValue num = argv[1].toNumber();
return JSValue(fd_asin(num.f64));
}
return kUndefinedValue;
}
JSValue math_atan(Context *cx, const JSValues& argv)
{
if (argv.size() > 0) {
JSValue num = argv[1].toNumber();
return JSValue(fd_atan(num.f64));
}
return kUndefinedValue;
}
JSValue math_atan2(Context *cx, const JSValues& argv)
{
if (argv.size() > 1) {
JSValue num1 = argv[1].toNumber();
JSValue num2 = argv[1].toNumber();
return JSValue(fd_atan2(num1.f64, num2.f64));
}
return kUndefinedValue;
}
JSValue math_ceil(Context *cx, const JSValues& argv)
{
if (argv.size() > 0) {
JSValue num = argv[1].toNumber();
return JSValue(fd_ceil(num.f64));
}
return kUndefinedValue;
}
struct MathFunctionEntry {
char *name;
JSNativeFunction::JSCode fn;
} MathFunctions[] = {
{ "abs", math_abs },
{ "acos", math_acos },
{ "asin", math_asin },
{ "atan", math_atan },
{ "atan2", math_atan2 },
{ "ceil", math_acos },
{ "acos", math_acos },
{ "acos", math_acos }
};
struct MathConstantEntry {
char *name;
double value;
} MathConstants[] = {
{ "E", M_E },
{ "LOG2E", M_LOG2E },
{ "LOG10E", M_LOG10E },
{ "LN2", M_LN2 },
{ "LN10", M_LN10 },
{ "PI", M_PI },
{ "SQRT2", M_SQRT2 },
{ "SQRT1_2", M_SQRT1_2 }
};
// There is no constructor for Math, we simply initialize
// the properties of the Math object
void JSMath::initMathObject(JSScope *g)
{
int i;
JSMath *m = new JSMath();
m->setClass(new JSString("Math"));
for (i = 0; i < sizeof(MathFunctions) / sizeof(MathFunctionEntry); i++)
m->setProperty(widenCString(MathFunctions[i].name), JSValue(new JSNativeFunction(MathFunctions[i].fn) ) );
for (i = 0; i < sizeof(MathConstants) / sizeof(MathConstantEntry); i++)
m->setProperty(widenCString(MathConstants[i].name), JSValue(MathConstants[i].value) );
g->setProperty(widenCString("Math"), JSValue(m));
}
} /* JSMathClass */
} /* JavaScript */

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@@ -1,58 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsmath_h
#define jsmath_h
#include "jstypes.h"
namespace JavaScript {
namespace JSMathClass {
using JSTypes::JSObject;
using JSTypes::JSString;
using JSTypes::JSScope;
class JSMath : public JSObject {
private:
JSMath() { }
public:
static void initMathObject(JSScope *g);
};
} /* JSMathClass */
} /* JavaScript */
#endif jsmath_h

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@@ -1,775 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#include "jstypes.h"
#include "jsclasses.h"
#include "numerics.h"
#include "icodegenerator.h"
#include "interpreter.h"
namespace JavaScript {
namespace JSTypes {
using namespace JSClasses;
using namespace Interpreter;
/********** Object Object Stuff **************************/
JSValue object_toString(Context *cx, const JSValues& argv)
{
if (argv.size() > 0) {
JSString *s = new JSString("[object ");
JSValue theThis = argv[0];
ASSERT(theThis.isObject());
s->append(theThis.object->getClass());
s->append("]");
return JSValue(s);
}
return kUndefinedValue;
}
JSValue objectConstructor(Context *cx, const JSValues& argv)
{
ASSERT(argv.size() > 0);
JSValue theThis = argv[0];
// the prototype and class have been established already
return theThis;
}
struct ObjectFunctionEntry {
char *name;
JSNativeFunction::JSCode fn;
} ObjectFunctions[] = {
{ "toString", object_toString },
};
JSObject *JSObject::objectPrototypeObject = JSObject::initJSObject();
String JSObject::ObjectString = widenCString("Object");
// This establishes the ur-prototype, there's a timing issue
// here - the JSObject static initializers have to run before
// any other JSObject objects are constructed.
JSObject *JSObject::initJSObject()
{
JSObject *result = new JSObject();
for (int i = 0; i < sizeof(ObjectFunctions) / sizeof(ObjectFunctionEntry); i++)
result->setProperty(widenCString(ObjectFunctions[i].name), JSValue(new JSNativeFunction(ObjectFunctions[i].fn) ) );
return result;
}
// Install the 'Object' constructor into the scope, mostly irrelevant since making
// a new JSObject does all the work of setting the prototype and [[class]] values.
void JSObject::initObjectObject(JSScope *g)
{
JSNativeFunction *objCon = new JSNativeFunction(objectConstructor);
objCon->setProperty(widenCString("prototype"), JSValue(objectPrototypeObject));
g->setProperty(ObjectString, JSValue(objCon));
}
/********** Function Object Stuff **************************/
// An empty function that returns undefined
JSValue functionPrototypeFunction(Context *cx, const JSValues& argv)
{
return kUndefinedValue;
}
JSValue function_constructor(Context *cx, const JSValues& argv)
{
// build a function from the arguments into the this.
ASSERT(argv.size() > 0);
JSValue theThis = argv[0];
ASSERT(theThis.isObject());
if (argv.size() == 2) {
JSValue s = JSValue::valueToString(argv[1]);
theThis = new JSFunction(cx->compile((String)(*s.string)));
}
return theThis;
}
JSValue function_toString(Context *cx, const JSValues& argv)
{
return JSValue(new JSString("function XXX() { }" ));
}
JSValue function_apply(Context *cx, const JSValues& argv)
{
// XXX
return kUndefinedValue;
}
JSValue function_call(Context *cx, const JSValues& argv)
{
// XXX
return kUndefinedValue;
}
String JSFunction::FunctionString = widenCString("Function");
JSObject *JSFunction::functionPrototypeObject = NULL; // the 'original Function prototype object'
struct FunctionFunctionEntry {
char *name;
JSNativeFunction::JSCode fn;
} FunctionFunctions[] = {
{ "constructor", function_constructor },
{ "toString", function_toString },
{ "apply", function_apply },
{ "call", function_call },
};
void JSFunction::initFunctionObject(JSScope *g)
{
// first build the Function Prototype Object
functionPrototypeObject = new JSNativeFunction(functionPrototypeFunction);
for (int i = 0; i < sizeof(FunctionFunctions) / sizeof(FunctionFunctionEntry); i++)
functionPrototypeObject->setProperty(widenCString(FunctionFunctions[i].name), JSValue(new JSNativeFunction(FunctionFunctions[i].fn) ) );
// now the Function Constructor Object
JSNativeFunction *functionConstructorObject = new JSNativeFunction(function_constructor);
functionConstructorObject->setPrototype(functionPrototypeObject);
functionConstructorObject->setProperty(widenCString("length"), JSValue((int32)1));
functionConstructorObject->setProperty(widenCString("prototype"), JSValue(functionPrototypeObject));
// This is interesting - had to use defineVariable here to specify a type because
// when left as Any_Type (via setProperty), the Function predefined type interacted
// badly with this value. (I think setProperty perhaps should have reset the entry
// in mTypes) (?)
g->defineVariable(FunctionString, &Function_Type, JSValue(functionConstructorObject));
}
/**************************************************************************************/
JSType Any_Type = JSType(widenCString("any"), NULL);
JSType Integer_Type = JSType(widenCString("Integer"), &Any_Type);
JSType Number_Type = JSType(widenCString("Number"), &Integer_Type);
JSType Character_Type = JSType(widenCString("Character"), &Any_Type);
JSType String_Type = JSType(widenCString("String"), &Character_Type);
JSType Function_Type = JSType(widenCString("Function"), &Any_Type);
JSType Array_Type = JSType(widenCString("Array"), &Any_Type);
JSType Type_Type = JSType(widenCString("Type"), &Any_Type);
JSType Boolean_Type = JSType(widenCString("Boolean"), &Any_Type);
JSType Null_Type = JSType(widenCString("Null"), &Any_Type);
JSType Void_Type = JSType(widenCString("void"), &Any_Type);
JSType None_Type = JSType(widenCString("none"), &Any_Type);
#ifdef IS_LITTLE_ENDIAN
#define JSDOUBLE_HI32(x) (((uint32 *)&(x))[1])
#define JSDOUBLE_LO32(x) (((uint32 *)&(x))[0])
#else
#define JSDOUBLE_HI32(x) (((uint32 *)&(x))[0])
#define JSDOUBLE_LO32(x) (((uint32 *)&(x))[1])
#endif
#define JSDOUBLE_HI32_SIGNBIT 0x80000000
#define JSDOUBLE_HI32_EXPMASK 0x7ff00000
#define JSDOUBLE_HI32_MANTMASK 0x000fffff
#define JSDOUBLE_IS_NaN(x) \
((JSDOUBLE_HI32(x) & JSDOUBLE_HI32_EXPMASK) == JSDOUBLE_HI32_EXPMASK && \
(JSDOUBLE_LO32(x) || (JSDOUBLE_HI32(x) & JSDOUBLE_HI32_MANTMASK)))
#define JSDOUBLE_IS_INFINITE(x) \
((JSDOUBLE_HI32(x) & ~JSDOUBLE_HI32_SIGNBIT) == JSDOUBLE_HI32_EXPMASK && \
!JSDOUBLE_LO32(x))
#define JSDOUBLE_IS_FINITE(x) \
((JSDOUBLE_HI32(x) & JSDOUBLE_HI32_EXPMASK) != JSDOUBLE_HI32_EXPMASK)
#define JSDOUBLE_IS_NEGZERO(d) (JSDOUBLE_HI32(d) == JSDOUBLE_HI32_SIGNBIT && \
JSDOUBLE_LO32(d) == 0)
// the canonical undefined value, etc.
const JSValue kUndefinedValue;
const JSValue kNaNValue = JSValue(nan);
const JSValue kTrueValue = JSValue(true);
const JSValue kFalseValue = JSValue(false);
const JSValue kNullValue = JSValue((JSObject*)NULL);
const JSValue kNegativeZero = JSValue(-0.0);
const JSValue kPositiveZero = JSValue(0.0);
const JSValue kNegativeInfinity = JSValue(negativeInfinity);
const JSValue kPositiveInfinity = JSValue(positiveInfinity);
const JSType *JSValue::getType() const
{
switch (tag) {
case JSValue::i32_tag:
return &Integer_Type;
case JSValue::u32_tag:
return &Integer_Type;
case JSValue::integer_tag:
return &Integer_Type;
case JSValue::f64_tag:
return &Number_Type;
case JSValue::object_tag:
{
//
// XXX why isn't there a class for Object? XXX
//
JSClass *clazz = dynamic_cast<JSClass *>(object->getType());
if (clazz)
return clazz;
else
return &Any_Type;
}
case JSValue::array_tag:
return &Array_Type;
case JSValue::function_tag:
return &Function_Type;
case JSValue::string_tag:
return &String_Type;
case JSValue::boolean_tag:
return &Boolean_Type;
case JSValue::undefined_tag:
return &Void_Type;
case JSValue::type_tag:
return &Type_Type;
default:
NOT_REACHED("Bad tag");
return &None_Type;
}
}
bool JSValue::isNaN() const
{
ASSERT(isNumber());
switch (tag) {
case i32_tag:
case u32_tag:
return false;
case integer_tag:
case f64_tag:
return JSDOUBLE_IS_NaN(f64);
default:
NOT_REACHED("Broken compiler?");
return true;
}
}
bool JSValue::isNegativeInfinity() const
{
ASSERT(isNumber());
switch (tag) {
case i32_tag:
case u32_tag:
return false;
case integer_tag:
case f64_tag:
return (f64 < 0) && JSDOUBLE_IS_INFINITE(f64);
default:
NOT_REACHED("Broken compiler?");
return true;
}
}
bool JSValue::isPositiveInfinity() const
{
ASSERT(isNumber());
switch (tag) {
case i32_tag:
case u32_tag:
return false;
case integer_tag:
case f64_tag:
return (f64 > 0) && JSDOUBLE_IS_INFINITE(f64);
default:
NOT_REACHED("Broken compiler?");
return true;
}
}
bool JSValue::isNegativeZero() const
{
ASSERT(isNumber());
switch (tag) {
case i32_tag:
case u32_tag:
return false;
case integer_tag:
case f64_tag:
return JSDOUBLE_IS_NEGZERO(f64);
default:
NOT_REACHED("Broken compiler?");
return true;
}
}
bool JSValue::isPositiveZero() const
{
ASSERT(isNumber());
switch (tag) {
case i32_tag:
return (i32 == 0);
case u32_tag:
return (u32 == 0);
case integer_tag:
case f64_tag:
return (f64 == 0.0) && !JSDOUBLE_IS_NEGZERO(f64);
default:
NOT_REACHED("Broken compiler?");
return true;
}
}
int JSValue::operator==(const JSValue& value) const
{
if (this->tag == value.tag) {
#define CASE(T) case T##_tag: return (this->T == value.T)
switch (tag) {
CASE(i8); CASE(u8);
CASE(i16); CASE(u16);
CASE(i32); CASE(u32); CASE(f32);
CASE(i64); CASE(u64); CASE(f64);
CASE(object); CASE(array); CASE(function); CASE(string);
CASE(type); CASE(boolean);
#undef CASE
case integer_tag : return (this->f64 == value.f64);
// question: are all undefined values equal to one another?
case undefined_tag: return 1;
}
}
return 0;
}
Formatter& operator<<(Formatter& f, JSObject& obj)
{
obj.printProperties(f);
return f;
}
void JSObject::printProperties(Formatter& f)
{
for (JSProperties::const_iterator i = mProperties.begin(); i != mProperties.end(); i++) {
f << (*i).first << " : " << (*i).second;
f << "\n";
}
}
Formatter& operator<<(Formatter& f, const JSValue& value)
{
switch (value.tag) {
case JSValue::i32_tag:
f << float64(value.i32);
break;
case JSValue::u32_tag:
f << float64(value.u32);
break;
case JSValue::integer_tag:
case JSValue::f64_tag:
f << value.f64;
break;
case JSValue::object_tag:
printFormat(f, "Object @ 0x%08X\n", value.object);
f << *value.object;
break;
case JSValue::array_tag:
printFormat(f, "Array @ 0x%08X", value.object);
break;
case JSValue::function_tag:
printFormat(f, "Function @ 0x%08X", value.object);
break;
case JSValue::string_tag:
f << *value.string;
break;
case JSValue::boolean_tag:
f << ((value.boolean) ? "true" : "false");
break;
case JSValue::undefined_tag:
f << "undefined";
break;
case JSValue::type_tag:
printFormat(f, "Type @ 0x%08X\n", value.type);
f << *value.type;
break;
default:
NOT_REACHED("Bad tag");
}
return f;
}
JSValue JSValue::toPrimitive(ECMA_type /*hint*/) const
{
JSObject *obj;
switch (tag) {
case i32_tag:
case u32_tag:
case integer_tag:
case f64_tag:
case string_tag:
case boolean_tag:
case undefined_tag:
return *this;
case object_tag:
obj = object;
break;
case array_tag:
obj = array;
break;
case function_tag:
obj = function;
break;
default:
NOT_REACHED("Bad tag");
return kUndefinedValue;
}
const JSValue &toString = obj->getProperty(widenCString("toString"));
if (toString.isObject()) {
if (toString.isFunction()) {
}
else // right? The spec doesn't say
throw new JSException("Runtime error from toPrimitive"); // XXX
}
const JSValue &valueOf = obj->getProperty(widenCString("valueOf"));
if (!valueOf.isObject())
throw new JSException("Runtime error from toPrimitive"); // XXX
return kUndefinedValue;
}
JSValue JSValue::valueToString(const JSValue& value) // can assume value is not a string
{
const char* chrp;
char buf[dtosStandardBufferSize];
switch (value.tag) {
case i32_tag:
chrp = doubleToStr(buf, dtosStandardBufferSize, value.i32, dtosStandard, 0);
break;
case u32_tag:
chrp = doubleToStr(buf, dtosStandardBufferSize, value.u32, dtosStandard, 0);
break;
case integer_tag:
case f64_tag:
chrp = doubleToStr(buf, dtosStandardBufferSize, value.f64, dtosStandard, 0);
break;
case object_tag:
chrp = "object";
break;
case array_tag:
chrp = "array";
break;
case function_tag:
chrp = "function";
break;
case string_tag:
return value;
case boolean_tag:
chrp = (value.boolean) ? "true" : "false";
break;
case undefined_tag:
chrp = "undefined";
break;
default:
NOT_REACHED("Bad tag");
}
return JSValue(new JSString(chrp));
}
JSValue JSValue::valueToNumber(const JSValue& value) // can assume value is not a number
{
switch (value.tag) {
case i32_tag:
return JSValue((float64)value.i32);
case u32_tag:
return JSValue((float64)value.u32);
case integer_tag:
case f64_tag:
return value;
case string_tag:
{
JSString* str = value.string;
const char16 *numEnd;
double d = stringToDouble(str->begin(), str->end(), numEnd);
return JSValue(d);
}
case object_tag:
case array_tag:
case function_tag:
// XXX more needed :
// toNumber(toPrimitive(hint Number))
return kUndefinedValue;
case boolean_tag:
return JSValue((value.boolean) ? 1.0 : 0.0);
case undefined_tag:
return kNaNValue;
default:
NOT_REACHED("Bad tag");
return kUndefinedValue;
}
}
JSValue JSValue::valueToInteger(const JSValue& value)
{
JSValue result = valueToNumber(value);
ASSERT(result.tag == f64_tag);
result.tag = i64_tag;
bool neg = (result.f64 < 0);
result.f64 = floor((neg) ? -result.f64 : result.f64);
result.f64 = (neg) ? -result.f64 : result.f64;
return result;
}
JSValue JSValue::valueToBoolean(const JSValue& value)
{
switch (value.tag) {
case i32_tag:
return JSValue(value.i32 != 0);
case u32_tag:
return JSValue(value.u32 != 0);
case integer_tag:
case f64_tag:
return JSValue(!(value.f64 == 0.0) || JSDOUBLE_IS_NaN(value.f64));
case string_tag:
return JSValue(value.string->length() != 0);
case boolean_tag:
return value;
case object_tag:
case array_tag:
case function_tag:
return kTrueValue;
case undefined_tag:
return kFalseValue;
default:
NOT_REACHED("Bad tag");
return kUndefinedValue;
}
}
static const double two32 = 4294967296.0;
static const double two31 = 2147483648.0;
JSValue JSValue::valueToInt32(const JSValue& value)
{
double d;
switch (value.tag) {
case i32_tag:
return value;
case u32_tag:
d = value.u32;
break;
case integer_tag:
case f64_tag:
d = value.f64;
break;
case string_tag:
{
JSString* str = value.string;
const char16 *numEnd;
d = stringToDouble(str->begin(), str->end(), numEnd);
}
break;
case boolean_tag:
return JSValue((int32)((value.boolean) ? 1 : 0));
case object_tag:
case array_tag:
case undefined_tag:
// toNumber(toPrimitive(hint Number))
return kUndefinedValue;
default:
NOT_REACHED("Bad tag");
return kUndefinedValue;
}
if ((d == 0.0) || !JSDOUBLE_IS_FINITE(d) )
return JSValue((int32)0);
d = fmod(d, two32);
d = (d >= 0) ? d : d + two32;
if (d >= two31)
return JSValue((int32)(d - two32));
else
return JSValue((int32)d);
}
JSValue JSValue::valueToUInt32(const JSValue& value)
{
double d;
switch (value.tag) {
case i32_tag:
return JSValue((uint32)value.i32);
case u32_tag:
return value;
case f64_tag:
d = value.f64;
break;
case string_tag:
{
JSString* str = value.string;
const char16 *numEnd;
d = stringToDouble(str->begin(), str->end(), numEnd);
}
break;
case boolean_tag:
return JSValue((uint32)((value.boolean) ? 1 : 0));
case object_tag:
case array_tag:
case undefined_tag:
// toNumber(toPrimitive(hint Number))
return kUndefinedValue;
default:
NOT_REACHED("Bad tag");
return kUndefinedValue;
}
if ((d == 0.0) || !JSDOUBLE_IS_FINITE(d))
return JSValue((uint32)0);
bool neg = (d < 0);
d = floor(neg ? -d : d);
d = neg ? -d : d;
d = fmod(d, two32);
d = (d >= 0) ? d : d + two32;
return JSValue((uint32)d);
}
JSValue JSValue::convert(JSType *toType)
{
if (toType == &Any_Type) // yuck, something wrong with this
// maybe the base types should be
// a family of classes, not just instances
// of JSType ???
return *this;
else if (toType == &Integer_Type)
return valueToInteger(*this);
else {
JSClass *toClass = dynamic_cast<JSClass *>(toType);
if (toClass) {
if (tag == object_tag) {
JSClass *fromClass = dynamic_cast<JSClass *>(object->getType());
if (fromClass) {
while (fromClass != toClass) {
fromClass = fromClass->getSuperClass();
if (fromClass == NULL)
throw new JSException("Can't cast to unrelated class");
}
return *this;
}
else
throw new JSException("Can't cast a generic object to a class");
}
else
throw new JSException("Can't cast a non-object to a class");
}
}
return kUndefinedValue;
}
JSFunction::~JSFunction()
{
delete mICode;
}
JSString::JSString(const String& str)
{
size_t n = str.size();
resize(n);
traits_type::copy(begin(), str.begin(), n);
}
JSString::JSString(const String* str)
{
size_t n = str->size();
resize(n);
traits_type::copy(begin(), str->begin(), n);
}
JSString::JSString(const char* str)
{
size_t n = ::strlen(str);
resize(n);
std::transform(str, str + n, begin(), JavaScript::widen);
}
void JSString::append(const char* str)
{
size_t n = ::strlen(str);
size_t oldSize = size();
resize(oldSize + n);
std::transform(str, str + n, begin() + oldSize, JavaScript::widen);
}
void JSString::append(const JSStringBase* str)
{
size_t n = str->size();
size_t oldSize = size();
resize(oldSize + n);
traits_type::copy(begin() + oldSize, str->begin(), n);
}
JSString::operator String()
{
return String(begin(), size());
}
// # of sub-type relationship between this type and the other type
// (== MAX_INT if other is not a base type)
int32 JSType::distance(const JSType *other) const
{
if (other == this)
return 0;
if (mBaseType == NULL)
return NoRelation;
int32 baseDistance = mBaseType->distance(other);
if (baseDistance != NoRelation)
++baseDistance;
return baseDistance;
}
} /* namespace JSTypes */
} /* namespace JavaScript */

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@@ -1,579 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jstypes_h
#define jstypes_h
#include "utilities.h"
#include "gc_allocator.h"
#include <vector>
#include <map>
#include <stack>
/* forward declare classes from JavaScript::ICG */
namespace JavaScript {
namespace ICG {
class ICodeModule;
} /* namespace ICG */
namespace Interpreter {
class Context;
} /* namespace Interpreter */
} /* namespace JavaScript */
namespace JavaScript {
namespace JSTypes {
using ICG::ICodeModule;
using Interpreter::Context;
class JSObject;
class JSArray;
class JSFunction;
class JSScope;
class JSString;
class JSType;
class Context;
/**
* All JavaScript data types.
*/
struct JSValue {
union {
int8 i8;
uint8 u8;
int16 i16;
uint16 u16;
int32 i32;
uint32 u32;
int64 i64;
uint64 u64;
float32 f32;
float64 f64;
JSObject* object;
JSArray* array;
JSFunction *function;
JSString *string;
JSType *type;
bool boolean;
};
/* These are the ECMA types, for use in 'toPrimitive' calls */
enum ECMA_type {
Undefined, Null, Boolean, Number, Object, String,
NoHint
};
enum {
i8_tag, u8_tag,
i16_tag, u16_tag,
i32_tag, u32_tag,
i64_tag, u64_tag,
f32_tag, f64_tag,
integer_tag,
object_tag, array_tag, function_tag, string_tag, boolean_tag, type_tag,
undefined_tag
} tag;
JSValue() : f64(0.0), tag(undefined_tag) {}
explicit JSValue(int32 i32) : i32(i32), tag(i32_tag) {}
explicit JSValue(uint32 u32) : u32(u32), tag(u32_tag) {}
explicit JSValue(float64 f64) : f64(f64), tag(f64_tag) {}
explicit JSValue(JSObject* object) : object(object), tag(object_tag) {}
explicit JSValue(JSArray* array) : array(array), tag(array_tag) {}
explicit JSValue(JSFunction* function) : function(function), tag(function_tag) {}
explicit JSValue(JSString* string) : string(string), tag(string_tag) {}
explicit JSValue(bool boolean) : boolean(boolean), tag(boolean_tag) {}
explicit JSValue(JSType* type) : type(type), tag(type_tag) {}
int32& operator=(int32 i32) { return (tag = i32_tag, this->i32 = i32); }
uint32& operator=(uint32 u32) { return (tag = u32_tag, this->u32 = u32); }
float64& operator=(float64 f64) { return (tag = f64_tag, this->f64 = f64); }
JSObject*& operator=(JSObject* object) { return (tag = object_tag, this->object = object); }
JSArray*& operator=(JSArray* array) { return (tag = array_tag, this->array = array); }
JSFunction*& operator=(JSFunction* function) { return (tag = function_tag, this->function = function); }
JSString*& operator=(JSString* string) { return (tag = string_tag, this->string = string); }
bool& operator=(bool boolean) { return (tag = boolean_tag, this->boolean = boolean); }
JSType*& operator=(JSType* type) { return (tag = type_tag, this->type = type); }
bool isFunction() const { return (tag == function_tag); }
bool isObject() const { return ((tag == object_tag) || (tag == function_tag) || (tag == array_tag) || (tag == type_tag)); }
bool isString() const { return (tag == string_tag); }
bool isBoolean() const { return (tag == boolean_tag); }
bool isNumber() const { return (tag == f64_tag) || (tag == integer_tag); }
/* this is correct wrt ECMA, The i32 & u32 kinds
will have to be converted (to doubles?) anyway because
we can't have overflow happening in generic arithmetic */
bool isUndefined() const { return (tag == undefined_tag); }
bool isNull() const { return ((tag == object_tag) && (this->object == NULL)); }
bool isNaN() const;
bool isNegativeInfinity() const;
bool isPositiveInfinity() const;
bool isNegativeZero() const;
bool isPositiveZero() const;
bool isType() const { return (tag == type_tag); }
JSValue toString() const { return (isString() ? *this : valueToString(*this)); }
JSValue toNumber() const { return (isNumber() ? *this : valueToNumber(*this)); }
JSValue toInt32() const { return ((tag == i32_tag) ? *this : valueToInt32(*this)); }
JSValue toUInt32() const { return ((tag == u32_tag) ? *this : valueToUInt32(*this)); }
JSValue toBoolean() const { return ((tag == boolean_tag) ? *this : valueToBoolean(*this)); }
JSValue toPrimitive(ECMA_type hint = NoHint) const;
JSValue convert(JSType *toType);
static JSValue valueToString(const JSValue& value);
static JSValue valueToNumber(const JSValue& value);
static JSValue valueToInteger(const JSValue& value);
static JSValue valueToInt32(const JSValue& value);
static JSValue valueToUInt32(const JSValue& value);
static JSValue valueToBoolean(const JSValue& value);
const JSType *getType() const; // map from tag type to JS2 type
int operator==(const JSValue& value) const;
};
Formatter& operator<<(Formatter& f, const JSValue& value);
#if defined(XP_MAC)
// copied from default template parameters in map.
typedef gc_allocator<std::pair<const String, JSValue> > gc_map_allocator;
#elif defined(XP_UNIX)
// FIXME: in libg++, they assume the map's allocator is a byte allocator,
// which is wrapped in a simple_allocator. this is crap.
typedef char _Char[1];
typedef gc_allocator<_Char> gc_map_allocator;
#elif defined(_WIN32)
// FIXME: MSVC++'s notion. this is why we had to add _Charalloc().
typedef gc_allocator<JSValue> gc_map_allocator;
#endif
/**
* GC-scannable array of values.
*/
typedef std::vector<JSValue, gc_allocator<JSValue> > JSValues;
extern const JSValue kUndefinedValue;
extern const JSValue kNaNValue;
extern const JSValue kTrueValue;
extern const JSValue kFalseValue;
extern const JSValue kNullValue;
extern const JSValue kNegativeZero;
extern const JSValue kPositiveZero;
extern const JSValue kNegativeInfinity;
extern const JSValue kPositiveInfinity;
extern JSType Any_Type;
extern JSType Integer_Type;
extern JSType Number_Type;
extern JSType Character_Type;
extern JSType String_Type;
extern JSType Function_Type;
extern JSType Array_Type;
extern JSType Type_Type;
extern JSType Boolean_Type;
extern JSType Null_Type;
extern JSType Void_Type;
extern JSType None_Type;
typedef std::map<String, JSValue, std::less<String>, gc_map_allocator> JSProperties;
/**
* Basic behavior of all JS objects, mapping a name to a value,
* with prototype-based inheritance.
*/
class JSObject : public gc_base {
protected:
JSProperties mProperties;
JSObject* mPrototype;
JSType* mType;
JSString* mClass; // this is the internal [[Class]] property
static JSObject *initJSObject();
static String ObjectString;
static JSObject *objectPrototypeObject;
void init(JSObject* prototype);
public:
JSObject() { init(objectPrototypeObject); }
JSObject(JSValue &constructor) { init(constructor.object->getProperty(widenCString("prototype")).object); }
JSObject(JSObject *prototype) { init(prototype); }
static void initObjectObject(JSScope *g);
bool hasProperty(const String& name)
{
return (mProperties.count(name) != 0);
}
const JSValue& getProperty(const String& name)
{
JSProperties::const_iterator i = mProperties.find(name);
if (i != mProperties.end())
return i->second;
if (mPrototype)
return mPrototype->getProperty(name);
return kUndefinedValue;
}
// return the property AND the object it's found in
// (would rather return references, but couldn't get that to work)
const JSValue getReference(JSValue &prop, const String& name)
{
JSProperties::const_iterator i = mProperties.find(name);
if (i != mProperties.end()) {
prop = i->second;
return JSValue(this);
}
if (mPrototype)
return mPrototype->getReference(prop, name);
return kUndefinedValue;
}
JSValue& setProperty(const String& name, const JSValue& value)
{
return (mProperties[name] = value);
}
const JSValue& deleteProperty(const String& name)
{
JSProperties::iterator i = mProperties.find(name);
if (i != mProperties.end()) {
mProperties.erase(i);
return kTrueValue;
}
if (mPrototype)
return mPrototype->deleteProperty(name);
return kFalseValue;
}
void setPrototype(JSObject* prototype)
{
mPrototype = prototype;
}
JSObject* getPrototype()
{
return mPrototype;
}
JSType* getType()
{
return mType;
}
JSString* getClass()
{
return mClass;
}
void setClass(JSString* s)
{
mClass = s;
}
virtual void printProperties(Formatter& f);
};
Formatter& operator<<(Formatter& f, JSObject& obj);
/**
* Private representation of a JavaScript array.
*/
class JSArray : public JSObject {
JSValues elements;
public:
JSArray() : elements(1) {}
JSArray(uint32 size) : elements(size) {}
JSArray(const JSValues &v) : elements(v) {}
uint32 length()
{
return elements.size();
}
JSValue& operator[](const JSValue& index)
{
// for now, we can only handle f64 index values.
uint32 n = (uint32)index.f64;
// obviously, a sparse representation might be better.
uint32 size = elements.size();
if (n >= size) expand(n, size);
return elements[n];
}
JSValue& operator[](uint32 n)
{
// obviously, a sparse representation might be better.
uint32 size = elements.size();
if (n >= size) expand(n, size);
return elements[n];
}
void resize(uint32 size)
{
elements.resize(size);
}
private:
void expand(uint32 n, uint32 size)
{
do {
size *= 2;
} while (n >= size);
elements.resize(size);
}
};
/**
* Private representation of a JS function. This simply
* holds a reference to the iCode module that is the
* compiled code of the function.
*/
class JSFunction : public JSObject {
static String FunctionString;
static JSObject *functionPrototypeObject;
ICodeModule* mICode;
protected:
JSFunction() : mICode(0) {}
typedef JavaScript::gc_traits_finalizable<JSFunction> traits;
typedef gc_allocator<JSFunction, traits> allocator;
public:
static void JSFunction::initFunctionObject(JSScope *g);
JSFunction(ICodeModule* iCode);
~JSFunction();
void* operator new(size_t) { return allocator::allocate(1); }
ICodeModule* getICode() { return mICode; }
virtual bool isNative() { return false; }
};
class JSNativeFunction : public JSFunction {
public:
typedef JSValue (*JSCode)(Context *cx, const JSValues& argv);
JSCode mCode;
JSNativeFunction(JSCode code) : mCode(code) {}
virtual bool isNative() { return true; }
};
class JSBinaryOperator : public JSFunction {
public:
typedef JSValue (*JSBinaryCode)(const JSValue& arg1, const JSValue& arg2);
JSBinaryCode mCode;
JSBinaryOperator(JSBinaryCode code) : mCode(code) {}
virtual bool isNative() { return true; }
};
#ifndef STLPORT
# if defined(XP_UNIX)
// bastring.cc defines a funky operator new that assumes a byte-allocator.
typedef string_char_traits<char16> JSCharTraits;
typedef gc_allocator<_Char> JSStringAllocator;
# else
typedef std::char_traits<char16> JSCharTraits;
typedef gc_allocator<char16> JSStringAllocator;
# endif
#else
typedef std::char_traits<char16> JSCharTraits;
typedef gc_allocator<char16> JSStringAllocator;
#endif
typedef std::basic_string<char16, JSCharTraits, JSStringAllocator> JSStringBase;
/**
* Garbage collectable UNICODE string.
*/
class JSString : public JSStringBase, public gc_base {
public:
JSString() {}
explicit JSString(const JSStringBase& str) : JSStringBase(str) {}
explicit JSString(const JSStringBase* str) : JSStringBase(*str) {}
explicit JSString(const String& str);
explicit JSString(const String* str);
explicit JSString(const char* str);
operator String();
void append(const char* str);
void append(const JSStringBase* str);
};
class JSException : public gc_base {
public:
JSException(char *mess) : value(JSValue(new JSString(mess))) { }
JSException(JSValue v) : value(v) { }
JSValue value;
};
inline Formatter& operator<<(Formatter& f, const JSString& str)
{
printString(f, str.begin(), str.end());
return f;
}
/**
* Provides a set of nested scopes.
*/
class JSScope : public JSObject {
protected:
JSScope* mParent;
JSProperties mTypes;
public:
JSScope(JSScope* parent = 0, JSObject* prototype = 0)
: mParent(parent)
{
if (prototype)
setPrototype(prototype);
}
JSScope* getParent()
{
return mParent;
}
bool isDefined(const String& name)
{
if (hasProperty(name))
return true;
if (mParent)
return mParent->isDefined(name);
return false;
}
const JSValue& getVariable(const String& name)
{
const JSValue& ret = getProperty(name);
if (ret.isUndefined() && mParent)
return mParent->getVariable(name);
return ret;
}
JSValue& setVariable(const String& name, const JSValue& value)
{
return (mProperties[name] = value);
}
JSValue& defineVariable(const String& name, JSType* type, const JSValue& value)
{
if (type != &Any_Type)
mTypes[name] = type;
return (mProperties[name] = value);
}
JSValue& defineVariable(const String& name, JSType* type)
{
if (type != &Any_Type)
mTypes[name] = type;
return (mProperties[name] = kUndefinedValue);
}
void setType(const String& name, JSType* type)
{
// only type variables that are defined in this scope.
JSProperties::iterator i = mProperties.find(name);
if (i != mProperties.end())
mTypes[name] = type;
else
if (mParent)
mParent->setType(name, type);
}
JSType* getType(const String& name)
{
JSType* result = &Any_Type;
// only consider types for variables defined in this scope.
JSProperties::const_iterator i = mProperties.find(name);
if (i != mProperties.end()) {
i = mTypes.find(name);
if (i != mTypes.end())
result = i->second.type;
} else {
// see if variable is defined in parent scope.
if (mParent)
result = mParent->getType(name);
}
return result;
}
JSValue& defineFunction(const String& name, ICodeModule* iCode)
{
JSValue value(new JSFunction(iCode));
return defineVariable(name, &Function_Type, value);
}
JSValue& defineNativeFunction(const String& name, JSNativeFunction::JSCode code)
{
JSValue value(new JSNativeFunction(code));
return defineVariable(name, &Function_Type, value);
}
};
class JSType : public JSObject {
protected:
String mName;
JSType *mBaseType;
public:
JSType(const String &name, JSType *baseType) : mName(name), mBaseType(baseType)
{
mType = &Type_Type;
}
enum { NoRelation = 0x7FFFFFFF };
const String& getName() const { return mName; }
int32 distance(const JSType *other) const;
};
inline void JSObject::init(JSObject* prototype) { mPrototype = prototype; mType = &Any_Type; mClass = new JSString(ObjectString); }
inline JSFunction::JSFunction(ICodeModule* iCode) : mICode(iCode), JSObject(functionPrototypeObject) { setClass(new JSString(FunctionString)); }
} /* namespace JSTypes */
} /* namespace JavaScript */
#endif /* jstypes_h */

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#define XP_MAC 1

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#define XP_MAC 1
#define DEBUG 1

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#define XP_MAC 1
#define XP_MAC_MPW 1

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#define XP_MAC 1
#define XP_MAC_MPW 1
#define DEBUG 1

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/*
MacOS_config.h
Configuration flags for Macintosh development systems.
<Revision History>
11/16/95 pcb Updated compilation flags to reflect latest 4.6 Makefile.
by Patrick C. Beard.
*/
/* Boehm, November 17, 1995 12:10 pm PST */
#ifdef __MWERKS__
// for CodeWarrior Pro with Metrowerks Standard Library (MSL).
// #define MSL_USE_PRECOMPILED_HEADERS 0
#include <ansi_prefix.mac.h>
#ifndef __STDC__
#define __STDC__ 0
#endif
#endif /* __MWERKS__ */
// these are defined again in gc_priv.h.
#undef TRUE
#undef FALSE
#define ALL_INTERIOR_POINTERS // follows interior pointers.
#define SILENT // no collection messages.
//#define DONT_ADD_BYTE_AT_END // no padding.
//#define SMALL_CONFIG // whether to use a smaller heap.
#define NO_SIGNALS // signals aren't real on the Macintosh.
#define USE_TEMPORARY_MEMORY // use Macintosh temporary memory.
//#define FIND_LEAK // use as a leak detector.
//#define LARGE_CONFIG // try a big heap, for fun.
// CFLAGS= -O -DNO_SIGNALS -DSILENT -DALL_INTERIOR_POINTERS
//
//LIBGC_CFLAGS= -O -DNO_SIGNALS -DSILENT \
// -DREDIRECT_MALLOC=GC_malloc_uncollectable \
// -DDONT_ADD_BYTE_AT_END -DALL_INTERIOR_POINTERS
// Flags for building libgc.a -- the last two are required.
//
// Setjmp_test may yield overly optimistic results when compiled
// without optimization.
// -DSILENT disables statistics printing, and improves performance.
// -DCHECKSUMS reports on erroneously clear dirty bits, and unexpectedly
// altered stubborn objects, at substantial performance cost.
// Use only for incremental collector debugging.
// -DFIND_LEAK causes the collector to assume that all inaccessible
// objects should have been explicitly deallocated, and reports exceptions.
// Finalization and the test program are not usable in this mode.
// -DSOLARIS_THREADS enables support for Solaris (thr_) threads.
// (Clients should also define SOLARIS_THREADS and then include
// gc.h before performing thr_ or GC_ operations.)
// This is broken on nonSPARC machines.
// -DALL_INTERIOR_POINTERS allows all pointers to the interior
// of objects to be recognized. (See gc_priv.h for consequences.)
// -DSMALL_CONFIG tries to tune the collector for small heap sizes,
// usually causing it to use less space in such situations.
// Incremental collection no longer works in this case.
// -DLARGE_CONFIG tunes the collector for unusually large heaps.
// Necessary for heaps larger than about 500 MB on most machines.
// Recommended for heaps larger than about 64 MB.
// -DDONT_ADD_BYTE_AT_END is meaningful only with
// -DALL_INTERIOR_POINTERS. Normally -DALL_INTERIOR_POINTERS
// causes all objects to be padded so that pointers just past the end of
// an object can be recognized. This can be expensive. (The padding
// is normally more than one byte due to alignment constraints.)
// -DDONT_ADD_BYTE_AT_END disables the padding.
// -DNO_SIGNALS does not disable signals during critical parts of
// the GC process. This is no less correct than many malloc
// implementations, and it sometimes has a significant performance
// impact. However, it is dangerous for many not-quite-ANSI C
// programs that call things like printf in asynchronous signal handlers.
// -DOPERATOR_NEW_ARRAY declares that the C++ compiler supports the
// new syntax "operator new[]" for allocating and deleting arrays.
// See gc_cpp.h for details. No effect on the C part of the collector.
// This is defined implicitly in a few environments.
// -DREDIRECT_MALLOC=X causes malloc, realloc, and free to be defined
// as aliases for X, GC_realloc, and GC_free, respectively.
// Calloc is redefined in terms of the new malloc. X should
// be either GC_malloc or GC_malloc_uncollectable.
// The former is occasionally useful for working around leaks in code
// you don't want to (or can't) look at. It may not work for
// existing code, but it often does. Neither works on all platforms,
// since some ports use malloc or calloc to obtain system memory.
// (Probably works for UNIX, and win32.)
// -DNO_DEBUG removes GC_dump and the debugging routines it calls.
// Reduces code size slightly at the expense of debuggability.

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// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 1998 Netscape Communications Corporation. All
// Rights Reserved.
#ifndef numerics_h
#define numerics_h
#include "utilities.h"
#include <cmath>
/* Use platform-defined floating-point routines.
* On platforms with faulty floating-point code
* ifdef these out and replace by custom implementations. */
#ifndef STLPORT
# ifndef _WIN32
using std::abs;
using std::floor;
using std::ceil;
using std::fmod;
using std::sqrt;
using std::sin;
using std::cos;
using std::tan;
using std::asin;
using std::acos;
using std::atan;
# endif
#endif
namespace JavaScript {
//
// Double-precision constants
//
extern double positiveInfinity;
extern double negativeInfinity;
extern double nan;
//
// Portable double-precision floating point to string and back conversions
//
double ulp(double x);
int hi0bits(uint32 x);
class BigInt {
enum {maxLgGrossSize = 15}; // Maximum value of lg2(grossSize)
static uint32 *freeLists[maxLgGrossSize+1];
uint lgGrossSize; // lg2(grossSize)
public:
bool negative; // True if negative. Ignored by most BigInt routines!
private:
uint32 grossSize; // Number of words allocated for <words>
uint32 size; // Actual number of words. If the number is nonzero, the most significant word must be nonzero.
// If the number is zero, then size is also 0.
uint32 *words; // <size> words of the number, in little endian order
void allocate(uint lgGrossSize);
void recycle();
void initCopy(const BigInt &b);
void move(BigInt &b);
public:
BigInt(): words(0) {}
explicit BigInt(uint lgGrossSize) {allocate(lgGrossSize);}
BigInt(const BigInt &b) {initCopy(b);}
void operator=(const BigInt &b) {ASSERT(!words); initCopy(b);}
~BigInt() {if (words) recycle();}
void setLgGrossSize(uint lgGrossSize);
void init(uint32 i);
void init(double d, int32 &e, int32 &bits);
void mulAdd(uint m, uint a);
void operator*=(const BigInt &m);
void pow2Mul(int32 k);
void pow5Mul(int32 k);
bool isZero() const {ASSERT(words); return !size;}
int cmp(const BigInt &b) const;
void initDiff(const BigInt &m, const BigInt &n);
uint32 quoRem2(int32 k);
int32 quoRem(const BigInt &S);
uint32 divRem(uint32 divisor);
double b2d(int32 &e) const;
double ratio(const BigInt &denominator) const;
void s2b(const char *s, int32 nd0, int32 nd, uint32 y9);
uint32 nWords() const {return size;}
uint32 word(uint32 i) const {ASSERT(i < size); return words[i];}
};
// Modes for converting floating-point numbers to strings.
//
// Some of the modes can round-trip; this means that if the number is converted to
// a string using one of these mode and then converted back to a number, the result
// will be identical to the original number (except that, due to ECMA, -0 will get converted
// to +0). These round-trip modes return the minimum number of significand digits that
// permit the round trip.
//
// Some of the modes take an integer parameter <precision>.
//
// Keep this in sync with doubleToAsciiModes[].
enum DToStrMode {
dtosStandard, // Either fixed or exponential format; round-trip
dtosStandardExponential, // Always exponential format; round-trip
dtosFixed, // Round to <precision> digits after the decimal point; exponential if number is large
dtosExponential, // Always exponential format; <precision> significant digits
dtosPrecision // Either fixed or exponential format; <precision> significant digits
};
// Maximum number of characters (including trailing null) that a dtosStandard or dtosStandardExponential
// conversion can produce. This maximum is reached for a number like -1.2345678901234567e+123.
const int dtosStandardBufferSize = 25;
// Maximum number of characters (including trailing null) that one of the other conversions
// can produce. This maximum is reached for TO_FIXED, which can generate up to 21 digits before the decimal point.
#define dtosVariableBufferSize(precision) ((precision)+24 > dtosStandardBufferSize ? (precision)+24 : dtosStandardBufferSize)
// "-0.0000...(1073 zeros after decimal point)...0001\0" is the longest string that we could produce,
// which occurs when printing -5e-324 in binary. We could compute a better estimate of the size of
// the output string and malloc fewer bytes depending on d and base, but why bother?
const int dtobasesBufferSize = 1078;
double strToDouble(const char *str, const char *&numEnd);
double stringToDouble(const char16 *str, const char16 *strEnd, const char16 *&numEnd);
double stringToInteger(const char16 *str, const char16 *strEnd, const char16 *&numEnd, uint base);
char *doubleToStr(char *buffer, size_t bufferSize, double value, DToStrMode mode, int precision);
size_t doubleToBaseStr(char *buffer, double value, uint base);
void appendDouble(String &dst, double value, DToStrMode mode = dtosStandard, int precision = 0);
inline String &operator+=(String &s, double value) {appendDouble(s, value); return s;}
void printDouble(Formatter &f, double value, DToStrMode mode = dtosStandard, int precision = 0);
inline Formatter &operator<<(Formatter &f, double value) {printDouble(f, value); return f;}
}
#endif

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@@ -1,93 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 1998 Netscape Communications Corporation. All
// Rights Reserved.
#ifndef systemtypes_h
#define systemtypes_h
#include <cstddef>
#ifdef _WIN32
// Turn off warnings about identifiers too long in browser information
#pragma warning(disable: 4786)
#endif
// Define int8, int16, int32, int64, uint8, uint16, uint32, uint64, and uint.
typedef unsigned int uint;
typedef unsigned char uchar;
typedef signed char int8;
typedef unsigned char uint8;
typedef short int16;
typedef unsigned short uint16;
#if !defined(XP_MAC) && !defined(_WIN32)
typedef int int32;
typedef unsigned int uint32;
#else
typedef long int32;
typedef unsigned long uint32;
#endif
#ifdef _WIN32
typedef __int64 int64;
typedef unsigned __int64 uint64;
#else
typedef long long int64;
typedef unsigned long long uint64;
#endif
// Define this if the machine natively supports 64-bit integers
#define NATIVE_INT64
// Define float32 and float64.
typedef double float64;
typedef float float32;
// A UTF-16 character
// Use wchar_t on platforms on which wchar_t has 16 bits; otherwise use int16.
// Note that in C++ wchar_t is a distinct type rather than a typedef for some integral type.
// Like char, a char16 can be either signed or unsigned at the implementation's discretion.
#ifdef __GNUC__
// GCC's wchar_t is 32 bits, so we can't use it.
typedef uint16 char16;
typedef uint16 uchar16;
#else
typedef wchar_t char16;
#ifndef _WIN32 // Microsoft VC6 bug: wchar_t should be a built-in type, not a typedef
typedef unsigned wchar_t uchar16;
#else
typedef wchar_t uchar16;
#endif
#endif
#ifdef _WIN32
#define IS_LITTLE_ENDIAN
#endif
#ifdef __i386__
#define IS_LITTLE_ENDIAN
#endif
// basicAlignment is the maximum alignment required by any native type. An object aligned to
// a multiple of basicAlignment can hold any native type. malloc should return a pointer whose
// lgBasicAlignment least significant bits are clear.
// Currently basicAlignment is set to 8 to allow doubles and int64s to have their natural alignment;
// may be customized for individual platforms.
const uint lgBasicAlignment = 3;
const uint basicAlignment = 1u<<lgBasicAlignment;
#endif /* systemtypes_h */

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@@ -1,28 +0,0 @@
class A {
static var x = 0;
static function f()
{
return A.x++;
}
}
class Point3D {
var x = 0, y = 0, z = 0;
function set(x, y, z) {
this.x = x;
this.y = y;
this.z = z;
return this;
}
function setX(x) { this.x = x; }
function getX() { return this.x; }
function setY(y) { this.y = y; }
function getY() { return this.y; }
function setZ(z) { this.z = z; }
function getZ() { return this.z; }
}

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@@ -1,596 +0,0 @@
#!perl
use strict;
my $tab = " ";
my $init_tab = $tab;
my $enum_decs = "";
my $class_decs = "";
my @name_array;
my $opcode_maxlen = 0;
#
# fields are:
#
# * super: Class to inherit from, if super is Instruction_(1|2|3), the script
# will automatically append the correct template info based on |params|
# * super_has_print: Set to 1 if you want to inherit the print() and print_args()
# methods from the superclass, set to 0 (or just don't set)
# to generate print methods.
# * rem: Remark you want to show up after the enum def, and inside the class.
# * params: The parameter list expected by the constructor, you can specify a
# default value, using the syntax, [ ("Type = default") ].
#
# class names will be generated based on the opcode mnemonic. See the
# subroutine get_classname for the implementation. Basically underscores will
# be removes and the class name will be WordCapped, using the positions where the
# underscores were as word boundries. The only exception occurs when a word is
# two characters, in which case both characters will be capped,
# as in BRANCH_GT -> BranchGT.
#
#
# template definitions for compare, arithmetic, and conditional branch ops
#
my $binary_op =
{
super => "Instruction_3",
super_has_print => 1,
rem => "dest, source1, source2",
params => [ ("TypedRegister", "TypedRegister", "TypedRegister") ]
};
my $math_op =
{
super => "Arithmetic",
super_has_print => 1,
rem => "dest, source1, source2",
params => [ ("TypedRegister", "TypedRegister", "TypedRegister") ]
};
my $cbranch_op =
{
super => "GenericBranch",
super_has_print => 1,
rem => "target label, condition",
params => [ ("Label*", "TypedRegister") ]
};
my $unary_op =
{
super => "Instruction_2",
rem => "dest, source",
params => [ ("TypedRegister", "TypedRegister") ]
};
#
# op defititions
#
my %ops;
$ops{"NOP"} =
{
super => "Instruction",
rem => "do nothing and like it",
};
$ops{"DEBUGGER"} =
{
super => "Instruction",
rem => "drop to the debugger",
};
$ops{"GENERIC_BINARY_OP"} =
{
super => "Instruction_4",
rem => "dest, op, source1, source2",
params => [ ("TypedRegister", "BinaryOperator::BinaryOp", "TypedRegister", "TypedRegister") ]
};
$ops{"MOVE"} =
{
super => "Instruction_2",
rem => "dest, source",
params => [ ("TypedRegister", "TypedRegister") ]
};
$ops{"LOAD_IMMEDIATE"} =
{
super => "Instruction_2",
rem => "dest, immediate value (double)",
params => [ ("TypedRegister", "double" ) ]
};
$ops{"LOAD_BOOLEAN"} =
{
super => "Instruction_2",
rem => "dest, immediate value (boolean)",
params => [ ("TypedRegister", "bool" ) ]
};
$ops{"LOAD_STRING"} =
{
super => "Instruction_2",
rem => "dest, immediate value (string)",
params => [ ("TypedRegister", "JSString*" ) ]
};
$ops{"LOAD_NAME"} =
{
super => "Instruction_2",
rem => "dest, name",
params => [ ("TypedRegister", "const StringAtom*" ) ]
};
$ops{"SUPER"} =
{
super => "Instruction_1",
rem => "dest",
params => [ ("TypedRegister" ) ]
};
$ops{"SAVE_NAME"} =
{
super => "Instruction_2",
rem => "name, source",
params => [ ("const StringAtom*", "TypedRegister") ]
};
$ops{"NEW_OBJECT"} =
{
super => "Instruction_2",
rem => "dest, constructor",
params => [ ("TypedRegister", "TypedRegister") ]
};
$ops{"NEW_CLASS"} =
{
super => "Instruction_2",
rem => "dest, class",
params => [ ("TypedRegister", "JSClass*") ]
};
$ops{"NEW_FUNCTION"} =
{
super => "Instruction_2",
rem => "dest, ICodeModule",
params => [ ("TypedRegister", "ICodeModule*") ]
};
$ops{"NEW_ARRAY"} =
{
super => "Instruction_1",
rem => "dest",
params => [ ("TypedRegister") ]
};
$ops{"DELETE_PROP"} =
{
super => "Instruction_3",
rem => "dest, object, prop name",
params => [ ("TypedRegister", "TypedRegister", "const StringAtom*") ]
};
$ops{"GET_PROP"} =
{
super => "Instruction_3",
rem => "dest, object, prop name",
params => [ ("TypedRegister", "TypedRegister", "const StringAtom*") ]
};
$ops{"SET_PROP"} =
{
super => "Instruction_3",
rem => "object, name, source",
params => [ ("TypedRegister", "const StringAtom*", "TypedRegister") ]
};
$ops{"GET_SLOT"} =
{
super => "Instruction_3",
rem => "dest, object, slot number",
params => [ ("TypedRegister", "TypedRegister", "uint32") ]
};
$ops{"SET_SLOT"} =
{
super => "Instruction_3",
rem => "object, slot number, source",
params => [ ("TypedRegister", "uint32", "TypedRegister") ]
};
$ops{"GET_STATIC"} =
{
super => "Instruction_3",
rem => "dest, class, index",
params => [ ("TypedRegister", "JSClass*", "uint32") ]
};
$ops{"SET_STATIC"} =
{
super => "Instruction_3",
rem => "class, index, source",
params => [ ("JSClass*", "uint32", "TypedRegister") ]
};
$ops{"STATIC_XCR"} =
{
super => "Instruction_4",
rem => "dest, class, index, value",
params => [ ("TypedRegister", "JSClass*", "uint32", "double") ]
};
$ops{"SLOT_XCR"} =
{
super => "Instruction_4",
rem => "dest, source, slot number, value",
params => [ ("TypedRegister", "TypedRegister", "uint32", "double") ]
};
$ops{"PROP_XCR"} =
{
super => "Instruction_4",
rem => "dest, source, name, value",
params => [ ("TypedRegister", "TypedRegister", "const StringAtom*", "double") ]
};
$ops{"ELEM_XCR"} =
{
super => "Instruction_4",
rem => "dest, base, index, value",
params => [ ("TypedRegister", "TypedRegister", "TypedRegister", "double") ]
};
$ops{"NAME_XCR"} =
{
super => "Instruction_3",
rem => "dest, name, value",
params => [ ("TypedRegister", "const StringAtom*", "double") ]
};
$ops{"VAR_XCR"} =
{
super => "Instruction_3",
rem => "dest, source, value",
params => [ ("TypedRegister", "TypedRegister", "double") ]
};
$ops{"GET_ELEMENT"} =
{
super => "Instruction_3",
rem => "dest, base, index",
params => [ ("TypedRegister", "TypedRegister", "TypedRegister") ]
};
$ops{"SET_ELEMENT"} =
{
super => "Instruction_3",
rem => "base, index, value",
params => [ ("TypedRegister", "TypedRegister", "TypedRegister") ]
};
$ops{"ADD"} = $math_op;
$ops{"SUBTRACT"} = $math_op;
$ops{"MULTIPLY"} = $math_op;
$ops{"DIVIDE"} = $math_op;
$ops{"REMAINDER"} = $math_op;
$ops{"SHIFTLEFT"} = $math_op;
$ops{"SHIFTRIGHT"} = $math_op;
$ops{"USHIFTRIGHT"}= $math_op;
$ops{"AND"} = $math_op;
$ops{"OR"} = $math_op;
$ops{"XOR"} = $math_op;
$ops{"COMPARE_LT"} = $binary_op;
$ops{"COMPARE_LE"} = $binary_op;
$ops{"COMPARE_EQ"} = $binary_op;
$ops{"COMPARE_NE"} = $binary_op;
$ops{"COMPARE_GE"} = $binary_op;
$ops{"COMPARE_GT"} = $binary_op;
$ops{"COMPARE_IN"} = $binary_op;
$ops{"STRICT_EQ"} = $binary_op;
$ops{"STRICT_NE"} = $binary_op;
$ops{"INSTANCEOF"} = $binary_op;
$ops{"BITNOT"} = $unary_op;
$ops{"NOT"} = $unary_op;
$ops{"TEST"} = $unary_op;
$ops{"NEGATE"} = $unary_op;
$ops{"POSATE"} = $unary_op;
$ops{"BRANCH"} =
{
super => "GenericBranch",
rem => "target label",
params => [ ("Label*") ]
};
$ops{"BRANCH_TRUE"} = $cbranch_op;
$ops{"BRANCH_FALSE"} = $cbranch_op;
$ops{"RETURN"} =
{
super => "Instruction_1",
rem => "return value",
params => [ ("TypedRegister") ]
};
$ops{"RETURN_VOID"} =
{
super => "Instruction",
rem => "Return without a value"
};
$ops{"CALL"} =
{
super => "Instruction_4",
rem => "result, base, target, args",
params => [ ("TypedRegister", "TypedRegister", "TypedRegister", "RegisterList") ]
};
$ops{"GET_METHOD"} =
{
super => "Instruction_3",
rem => "result, target base, index",
params => [ ("TypedRegister", "TypedRegister", "uint32") ]
};
$ops{"THROW"} =
{
super => "Instruction_1",
rem => "exception value",
params => [ ("TypedRegister") ]
};
$ops{"TRYIN"} =
{
super => "Instruction_2",
rem => "catch target, finally target",
params => [ ("Label*", "Label*") ]
};
$ops{"TRYOUT"} =
{
super => "Instruction",
rem => "mmm, there is no try, only do",
};
$ops{"JSR"} =
{
super => "GenericBranch",
rem => "target",
params => [ ("Label*") ]
};
$ops{"RTS"} =
{
super => "Instruction",
rem => "Return to sender",
};
$ops{"WITHIN"} =
{
super => "Instruction_1",
rem => "within this object",
params => [ ("TypedRegister") ]
};
$ops{"WITHOUT"} =
{
super => "Instruction",
rem => "without this object",
};
$ops{"CAST"} =
{
super => "Instruction_3",
rem => "dest, rvalue, toType",
params => [ ("TypedRegister", "TypedRegister", "JSType*") ]
};
#
# nasty perl code, you probably don't need to muck around below this line
#
my $k;
if (!$ARGV[0]) {
# no args, collect all opcodes
for $k (sort(keys(%ops))) {
&collect($k);
}
} else {
# collect defs for only the opcodes specified on the command line
while ($k = pop(@ARGV)) {
&collect (uc($k));
}
}
&spew;
sub collect {
# grab the info from the $k record in $ops, and append it to
# $enum_decs, @name_array, and $class_decs.
my ($k) = @_;
if (length($k) > $opcode_maxlen) {
$opcode_maxlen = length($k);
}
my $c = $ops{$k};
if (!$c) {
die ("Unknown opcode, $k\n");
}
my $opname = $k;
my $cname = get_classname ($k);
my $super = $c->{"super"};
my $constructor = $super;
my @params;
if ($c->{"params"}) {
@params = @{$c->{"params"}};
} else {
@params = ();
}
my $rem = $c->{"rem"};
my ($dec_list, $call_list, $template_list) =
&get_paramlists(@params);
my @types = split (", ", $template_list);
my $constr_params = $call_list ? $opname . ", " . $call_list : $opname;
if ($super =~ /Instruction_\d/) {
$super .= "<" . $template_list . ">";
}
push (@name_array, $opname);
$enum_decs .= "$init_tab$tab$opname, /* $rem */\n";
if ($super) {
$class_decs .= ($init_tab . "class $cname : public $super {\n" .
$init_tab . "public:\n" .
$init_tab . $tab . "/* $rem */\n" .
$init_tab . $tab . "$cname ($dec_list) :\n" .
$init_tab . $tab . $tab . "$super\n" .
"$init_tab$tab$tab($constr_params) " .
"{};\n");
if (!$c->{"super_has_print"}) {
$class_decs .= ($init_tab . $tab .
"virtual Formatter& print(Formatter& f) {\n" .
$init_tab . $tab . $tab . "f << opcodeNames[$opname]" .
&get_print_body(@types) . ";\n" .
$init_tab . $tab . $tab . "return f;\n" .
$init_tab . $tab . "}\n");
my $printops_body = &get_printops_body(@types);
my $printops_decl = "virtual Formatter& printOperands(Formatter& f, ";
$printops_decl .= ($dec_list =~ /RegisterList/) ?
"const JSValues& registers" :
"const JSValues& /*registers*/";
$printops_decl .= ") {\n";
$class_decs .= ($init_tab . $tab .
$printops_decl .
$printops_body .
$init_tab . $tab . $tab . "return f;\n" .
$init_tab . $tab . "}\n");
} else {
$class_decs .= $init_tab . $tab .
"/* print() and printOperands() inherited from $super */\n";
}
$class_decs .= $init_tab . "};\n\n";
}
}
sub spew {
# print the info in $enum_decs, @name_aray, and $class_decs to stdout.
my $opname;
print "// THIS FILE IS MACHINE GENERATED! DO NOT EDIT BY HAND!\n\n";
print "#if !defined(OPCODE_NAMES)\n\n";
print $tab . "enum {\n$enum_decs$tab};\n\n";
print $class_decs;
print "#else\n\n";
print $tab . "char *opcodeNames[] = {\n";
for $opname (@name_array) {
print "$tab$tab\"$opname";
for (0 .. $opcode_maxlen - length($opname) - 1) {
print " ";
}
print "\",\n"
}
print "$tab};\n\n";
print "#endif\n\n"
}
sub get_classname {
# munge an OPCODE_MNEMONIC into a ClassName
my ($enum_name) = @_;
my @words = split ("_", $enum_name);
my $cname = "";
my $i = 0;
my $word;
for $word (@words) {
if ((length($word) == 2) && ($i != 0)) {
$cname .= uc($word);
} else {
$cname .= uc(substr($word, 0, 1)) . lc(substr($word, 1));
}
$i++;
}
return $cname;
}
sub get_paramlists {
# parse the params entry (passed into @types) into various parameter lists
# used in the class declaration
my @types = @_;
my @dec;
my @call;
my @tostr;
my @template;
my $op = 1;
my $type;
for $type (@types) {
my $pfx;
my $deref;
my $member;
my $default;
($type, $default) = split (" = ", $type);
if ($default ne "") {
$default = " = " . $default;
}
$pfx = $deref = "";
$member = "mOp$op";
push (@dec, "$type aOp$op" . "$default");
push (@call, "aOp$op");
push (@template, $type);
$op++;
}
return (join (", ", @dec), join (", ", @call), join (", ", @template));
}
sub get_print_body {
# generate the body of the print() function
my (@types) = @_;
my $type;
my @oplist;
my $op = 1;
my $in = $init_tab . $tab . $tab;
for $type (@types) {
if ($type eq "TypedRegister") {
push (@oplist, "mOp$op" );
# push (@oplist, "\"R\" << ((mOp$op.first == NotARegister) ? -1 : mOp$op.first)");
} elsif ($type eq "Label*") {
push (@oplist, "\"Offset \" << ((mOp$op) ? mOp$op->mOffset : NotAnOffset)")
} elsif ($type =~ /String/) {
push (@oplist, "\"'\" << *mOp$op << \"'\"");
} elsif ($type =~ /JSType\*/) {
push (@oplist, "\"'\" << mOp$op->getName() << \"'\"");
} elsif ($type =~ /bool/) {
push (@oplist, "\"'\" << ((mOp$op) ? \"true\" : \"false\") << \"'\"");
} elsif ($type =~ /ICodeModule/) {
push (@oplist, "\"ICodeModule\"");
} elsif ($type =~ /JSClass\*/) {
push (@oplist, "mOp$op->getName()");
} else {
push (@oplist, "mOp$op");
}
$op++;
}
my $rv = join (" << \", \" << ", @oplist);
if ($rv ne "") {
$rv = " << \"\\t\" << " . $rv;
}
return $rv;
}
sub get_printops_body {
# generate the body of the printOperands() function
my (@types) = @_;
my $type;
my @oplist;
my $op = 1;
my $in = $init_tab . $tab . $tab;
for $type (@types) {
if ($type eq "TypedRegister") {
push (@oplist, "mOp$op.first");
# push (@oplist, "\"R\" << mOp$op.first << '=' << registers[mOp$op.first]");
} elsif ($type eq "RegisterList") {
push (@oplist, "ArgList(mOp$op, registers)");
}
$op++;
}
my $rv = join (" << \", \" << ", @oplist);
if ($rv ne "") {
$rv = $init_tab . $tab . $tab . "f << " . $rv . ";\n";
}
return $rv;
}

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@@ -1,178 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#include "utilities.h"
#include "vmtypes.h"
namespace JavaScript {
namespace VM {
using namespace JSTypes;
#define OPCODE_NAMES
#include "icode.h"
Formatter& operator<< (Formatter& f, Instruction& i)
{
return i.print(f);
}
Formatter& operator<< (Formatter& f, RegisterList& rl)
{
TypedRegister* e = rl.end();
f << "(";
for (RegisterList::iterator r = rl.begin(); r != e; r++) {
f << "R" << r->first;
if ((r + 1) != e)
f << ", ";
}
f << ")";
return f;
}
Formatter& operator<< (Formatter& f, const ArgList& al)
{
const RegisterList& rl = al.mList;
const JSValues& registers = al.mRegisters;
f << "(";
RegisterList::const_iterator i = rl.begin(), e = rl.end();
if (i != e) {
TypedRegister r = *i++;
f << "R" << r.first << '=' << registers[r.first];
while (i != e) {
r = *i++;
f << ", R" << r.first << '=' << registers[r.first];
}
}
f << ")";
return f;
}
Formatter& operator<< (Formatter& f, TypedRegister& r)
{
if (r.first == NotARegister)
f << "<NaR>";
else
f << "R" << r.first;
return f;
}
Formatter& operator<< (Formatter &f, InstructionStream &is)
{
for (InstructionIterator i = is.begin();
i != is.end(); i++) {
/*
bool isLabel = false;
for (LabelList::iterator k = labels.begin();
k != labels.end(); k++)
if ((ptrdiff_t)(*k)->mOffset == (i - is.begin())) {
f << "#" << (uint32)(i - is.begin()) << "\t";
isLabel = true;
break;
}
if (!isLabel)
f << "\t";
f << **i << "\n";
*/
printFormat(stdOut, "%04u", (uint32)(i - is.begin()));
f << ": " << **i << "\n";
}
return f;
}
BinaryOperator::BinaryOp BinaryOperator::mapICodeOp(ICodeOp op) {
// a table later... or maybe we need a grand opcode re-unification
switch (op) {
case ADD : return Add;
case SUBTRACT : return Subtract;
case MULTIPLY : return Multiply;
case DIVIDE : return Divide;
case REMAINDER : return Remainder;
case SHIFTLEFT : return LeftShift;
case SHIFTRIGHT : return RightShift;
case USHIFTRIGHT: return LogicalRightShift;
case AND : return BitwiseAnd;
case OR : return BitwiseOr;
case XOR : return BitwiseXor;
case COMPARE_LT : return Less;
case COMPARE_LE : return LessOrEqual;
case COMPARE_EQ : return Equal;
case STRICT_EQ : return Identical;
default :
NOT_REACHED("Unsupported binary op");
return (BinaryOp)-1;
}
}
Formatter& operator<< (Formatter &f, BinaryOperator::BinaryOp &b)
{
switch (b) {
case BinaryOperator::Add: return f << "Add";
case BinaryOperator::Subtract: return f << "Subtract";
case BinaryOperator::Multiply: return f << "Multiply";
case BinaryOperator::Divide: return f << "Divide";
case BinaryOperator::Remainder: return f << "Remainder";
case BinaryOperator::LeftShift: return f << "LeftShift";
case BinaryOperator::RightShift: return f << "RightShift";
case BinaryOperator::LogicalRightShift: return f << "LogicalRightShift";
case BinaryOperator::BitwiseAnd: return f << "BitwiseAnd";
case BinaryOperator::BitwiseOr: return f << "BitwiseOr";
case BinaryOperator::BitwiseXor: return f << "BitwiseXor";
case BinaryOperator::Less: return f << "Less";
case BinaryOperator::LessOrEqual: return f << "LessOrEqual";
case BinaryOperator::Equal: return f << "Equal";
case BinaryOperator::Identical: return f << "Identical";
default :
NOT_REACHED("inner peace, either");
return f;
}
}
} /* namespace VM */
} /* namespace JavaScript */

View File

@@ -1,304 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef vmtypes_h
#define vmtypes_h
#include "numerics.h" /* needed for formatter << double */
#include "jstypes.h"
#include "jsclasses.h"
#include "world.h"
#include <vector>
/* forward declare classes from JavaScript::ICG */
namespace JavaScript {
namespace ICG {
class ICodeModule;
} /* namespace ICG */
} /* namespace JavaScript */
namespace JavaScript {
namespace VM {
using namespace JSTypes;
using namespace JSClasses;
/********************************************************************/
typedef uint32 ICodeOp;
extern char *opcodeNames[];
/* super-class for all instructions */
class Instruction
{
public:
Instruction(ICodeOp aOpcode) : mOpcode(aOpcode) {}
virtual Formatter& print(Formatter& f) = 0;
virtual Formatter& printOperands(Formatter& f, const JSValues& /*registers*/) = 0;
ICodeOp op() { return mOpcode; }
virtual int32 count() { return 0; }
protected:
ICodeOp mOpcode;
};
/********************************************************************/
enum { NotARegister = 0xFFFFFFFF };
enum { NotALabel = 0xFFFFFFFF };
enum { NotAnOffset = 0xFFFFFFFF };
enum { NotABanana = 0xFFFFFFFF };
/********************************************************************/
typedef uint32 Register;
typedef std::pair<Register, JSType*> TypedRegister;
typedef std::vector<TypedRegister> RegisterList;
typedef std::vector<Instruction *> InstructionStream;
typedef InstructionStream::iterator InstructionIterator;
typedef std::map<String, TypedRegister, std::less<String> > VariableMap;
/**
* Helper to print Call operands.
*/
struct ArgList {
const RegisterList& mList;
const JSValues& mRegisters;
ArgList(const RegisterList& rl, const JSValues& registers)
: mList(rl), mRegisters(registers) {}
};
/********************************************************************/
Formatter& operator<< (Formatter& f, Instruction& i);
Formatter& operator<< (Formatter& f, RegisterList& rl);
Formatter& operator<< (Formatter& f, const ArgList& al);
Formatter& operator<< (Formatter& f, InstructionStream& is);
Formatter& operator<< (Formatter& f, TypedRegister& r);
/********************************************************************/
class Label {
public:
Label(InstructionStream* aBase) :
mBase(aBase), mOffset(NotALabel) {}
InstructionStream *mBase;
uint32 mOffset;
};
typedef std::vector<Label *> LabelList;
typedef LabelList::iterator LabelIterator;
/********************************************************************/
/* 1, 2 and 3 operand opcode templates */
template <typename Operand1>
class Instruction_1 : public Instruction {
public:
Instruction_1(ICodeOp aOpcode, Operand1 aOp1) :
Instruction(aOpcode), mOp1(aOp1) { }
Operand1& o1() { return mOp1; }
virtual int32 count() { return 1; }
protected:
Operand1 mOp1;
};
template <typename Operand1, typename Operand2>
class Instruction_2 : public Instruction {
public:
Instruction_2(ICodeOp aOpcode, Operand1 aOp1, Operand2 aOp2) :
Instruction(aOpcode), mOp1(aOp1), mOp2(aOp2) {}
Operand1& o1() { return mOp1; }
Operand2& o2() { return mOp2; }
virtual int32 count() { return 2; }
protected:
Operand1 mOp1;
Operand2 mOp2;
};
template <typename Operand1, typename Operand2, typename Operand3>
class Instruction_3 : public Instruction {
public:
Instruction_3(ICodeOp aOpcode, Operand1 aOp1, Operand2 aOp2,
Operand3 aOp3) :
Instruction(aOpcode), mOp1(aOp1), mOp2(aOp2), mOp3(aOp3) { }
Operand1& o1() { return mOp1; }
Operand2& o2() { return mOp2; }
Operand3& o3() { return mOp3; }
virtual int32 count() { return 3; }
protected:
Operand1 mOp1;
Operand2 mOp2;
Operand3 mOp3;
};
template <typename Operand1, typename Operand2, typename Operand3, typename Operand4>
class Instruction_4 : public Instruction {
public:
Instruction_4(ICodeOp aOpcode, Operand1 aOp1, Operand2 aOp2,
Operand3 aOp3, Operand4 aOp4) :
Instruction(aOpcode), mOp1(aOp1), mOp2(aOp2), mOp3(aOp3), mOp4(aOp4) { }
Operand1& o1() { return mOp1; }
Operand2& o2() { return mOp2; }
Operand3& o3() { return mOp3; }
Operand4& o4() { return mOp4; }
virtual int32 count() { return 4; }
protected:
Operand1 mOp1;
Operand2 mOp2;
Operand3 mOp3;
Operand4 mOp4;
};
/********************************************************************/
/* Instruction groups */
class Arithmetic : public Instruction_3<TypedRegister, TypedRegister, TypedRegister> {
public:
Arithmetic (ICodeOp aOpcode, TypedRegister aDest, TypedRegister aSrc1,
TypedRegister aSrc2) :
Instruction_3<TypedRegister, TypedRegister, TypedRegister>(aOpcode, aDest, aSrc1, aSrc2) {}
virtual Formatter& print(Formatter& f)
{
f << opcodeNames[mOpcode] << "\tR" << mOp1.first << ", R" << mOp2.first << ", R" << mOp3.first;
return f;
}
virtual Formatter& printOperands(Formatter& f, const JSValues& registers)
{
f << "R" << mOp1.first << '=' << registers[mOp1.first] << ", " << "R" << mOp2.first << '=' << registers[mOp2.first] << ", " << "R" << mOp3.first << '=' << registers[mOp3.first];
return f;
}
};
class Unary : public Instruction_2<TypedRegister, TypedRegister> {
public:
Unary(ICodeOp aOpcode, TypedRegister aDest, TypedRegister aSrc) :
Instruction_2<TypedRegister, TypedRegister>(aOpcode, aDest, aSrc) {}
virtual Formatter& print (Formatter& f) {
f << opcodeNames[mOpcode] << "\tR" << mOp1.first << ", R" << mOp2.first;
return f;
}
virtual Formatter& printOperands(Formatter& f, const JSValues& registers)
{
f << "R" << mOp1.first << '=' << registers[mOp1.first] << ", " << "R" << mOp2.first << '=' << registers[mOp2.first];
return f;
}
};
class GenericBranch : public Instruction_2<Label*, TypedRegister> {
public:
GenericBranch (ICodeOp aOpcode, Label* aLabel,
TypedRegister aR = TypedRegister(NotARegister, &Any_Type) ) :
Instruction_2<Label*, TypedRegister>(aOpcode, aLabel, aR) {}
virtual Formatter& print (Formatter& f) {
f << opcodeNames[mOpcode] << "\tOffset " << mOp1->mOffset;
if (mOp2.first == NotARegister) {
f << ", R~";
} else {
f << ", R" << mOp2.first;
}
return f;
}
virtual Formatter& printOperands(Formatter& f, const JSValues& registers)
{
if (mOp2.first != NotARegister)
f << "R" << mOp2.first << '=' << registers[mOp2.first];
return f;
}
void resolveTo (uint32 aOffset) { mOp1->mOffset = aOffset; }
uint32 getOffset() { return mOp1->mOffset; }
void setTarget(Label *label) { mOp1 = label; }
};
/********************************************************************/
class BinaryOperator {
public:
// Wah, here's a third enumeration of opcodes - ExprNode, ICodeOp and now here, this can't be right??
typedef enum {
BinaryOperatorFirst,
Add = BinaryOperatorFirst, Subtract, Multiply, Divide,
Remainder, LeftShift, RightShift, LogicalRightShift,
BitwiseOr, BitwiseXor, BitwiseAnd, Less, LessOrEqual,
Equal, Identical, BinaryOperatorCount
} BinaryOp;
BinaryOperator(const JSType *t1, const JSType *t2, JSBinaryOperator *function) :
t1(t1), t2(t2), function(function) { }
BinaryOperator(const JSType *t1, const JSType *t2, JSFunction *function) :
t1(t1), t2(t2), function(function) { }
static BinaryOp mapICodeOp(ICodeOp op);
const JSType *t1;
const JSType *t2;
JSFunction *function;
};
typedef std::vector<BinaryOperator *> BinaryOperatorList;
Formatter& operator<<(Formatter &f, BinaryOperator::BinaryOp &b);
/********************************************************************/
#include "icode.h"
} /* namespace VM */
} /* namespace JavaScript */
#endif /* vmtypes_h */

View File

@@ -1,5 +0,0 @@
cd ..\..\..\..
cvs co mozilla/gc/boehm
cd mozilla\gc\boehm
nmake -f NT_MAKEFILE gc.lib
cd ..\..\js\js2\winbuild

View File

@@ -1,234 +0,0 @@
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# ** DO NOT EDIT **
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View File

@@ -1,29 +0,0 @@
Microsoft Developer Studio Workspace File, Format Version 6.00
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View File

@@ -1,39 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 1998 Netscape Communications Corporation. All
// Rights Reserved.
#include "world.h"
namespace JS = JavaScript;
// Return an existing StringAtom corresponding to the String s if there is
// one; if not, create a new StringAtom with String s and return that StringAtom.
JS::StringAtom &JS::StringAtomTable::operator[](const String &s)
{
HT::Reference r(ht, s);
if (r)
return *r;
else
return ht.insert(r, s);
}
JS::World::World()
{
Token::initKeywords(*this);
}

View File

@@ -1,73 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 1998 Netscape Communications Corporation. All
// Rights Reserved.
#ifndef world_h
#define world_h
#include "utilities.h"
#include "hash.h"
#include "parser.h"
namespace JavaScript {
//
// String atom management
//
// A StringAtom is a String for which the following guarantee applies:
// StringAtoms A and B have the same character sequences if and only if A and B are the
// same StringAtom.
class StringAtom: public String {
public:
Token::Kind tokenKind; // Token::Kind if this is a keyword; Token::identifier if not
explicit StringAtom(const String &s): String(s), tokenKind(Token::identifier) {}
private:
StringAtom(const StringAtom&); // No copy constructor
void operator=(const StringAtom&); // No assignment operator
};
inline bool operator==(const StringAtom &s1, const StringAtom &s2) {return &s1 == &s2;}
inline bool operator!=(const StringAtom &s1, const StringAtom &s2) {return &s1 != &s2;}
class StringAtomTable {
typedef HashTable<StringAtom, const String&> HT;
HT ht;
public:
StringAtom &operator[](const String &s);
StringAtom &operator[](const char *s)
{
return operator[](widenCString(s));
}
};
class World {
public:
StringAtomTable identifiers;
World();
};
}
#endif

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@@ -1,44 +0,0 @@
STLPORT = /usr/local/include/stlport
CC = gcc
CFLAGS = -g -ggdb -DDEBUG -DXP_UNIX -Wall -W -Wpointer-arith \
-Wbad-function-cast -Wstrict-prototypes -Wmissing-prototypes \
-Wno-non-virtual-dtor -I$(STLPORT)
objs = hash.o \
icodegenerator.o \
interpreter.o \
js2.o \
jsmath.o \
jstypes.o \
numerics.o \
parser.o \
utilities.o \
world.o \
vmtypes.o \
debugger.o
gc_path = ../../gc/boehm/
libs = gc.a -lstdc++ -lm
%.o : %.cpp
$(CC) -c $(CFLAGS) $< -o $@
js2: $(objs) gc.a
$(CC) -o $@ -ggdb $(objs) $(libs)
gc.a:
(cd $(gc_path) ; ln -f -s Makefile.unix Makefile ; make gc.a)
ln -f -s $(gc_path)gc.a ./gc.a
gctest: gc_allocator.o
$(CC) -o $@ -ggdb $^ $(libs)
clean:
rm -f $(objs)
depend:
gcc -MM *.cpp > dependencies
include dependencies

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@@ -1,191 +0,0 @@
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef cpucfg_h
#define cpucfg_h
#define JS_HAVE_LONG_LONG
#ifdef XP_MAC
#undef IS_LITTLE_ENDIAN
#define IS_BIG_ENDIAN 1
#define JS_BYTES_PER_BYTE 1L
#define JS_BYTES_PER_SHORT 2L
#define JS_BYTES_PER_INT 4L
#define JS_BYTES_PER_INT64 8L
#define JS_BYTES_PER_LONG 4L
#define JS_BYTES_PER_FLOAT 4L
#define JS_BYTES_PER_DOUBLE 8L
#define JS_BYTES_PER_WORD 4L
#define JS_BYTES_PER_DWORD 8L
#define JS_BITS_PER_BYTE 8L
#define JS_BITS_PER_SHORT 16L
#define JS_BITS_PER_INT 32L
#define JS_BITS_PER_INT64 64L
#define JS_BITS_PER_LONG 32L
#define JS_BITS_PER_FLOAT 32L
#define JS_BITS_PER_DOUBLE 64L
#define JS_BITS_PER_WORD 32L
#define JS_BITS_PER_BYTE_LOG2 3L
#define JS_BITS_PER_SHORT_LOG2 4L
#define JS_BITS_PER_INT_LOG2 5L
#define JS_BITS_PER_INT64_LOG2 6L
#define JS_BITS_PER_LONG_LOG2 5L
#define JS_BITS_PER_FLOAT_LOG2 5L
#define JS_BITS_PER_DOUBLE_LOG2 6L
#define JS_BITS_PER_WORD_LOG2 5L
#define JS_ALIGN_OF_SHORT 2L
#define JS_ALIGN_OF_INT 4L
#define JS_ALIGN_OF_LONG 4L
#define JS_ALIGN_OF_INT64 2L
#define JS_ALIGN_OF_FLOAT 4L
#define JS_ALIGN_OF_DOUBLE 4L
#define JS_ALIGN_OF_POINTER 4L
#define JS_ALIGN_OF_WORD 4L
#define JS_BYTES_PER_WORD_LOG2 2L
#define JS_BYTES_PER_DWORD_LOG2 3L
#define PR_WORDS_PER_DWORD_LOG2 1L
#elif defined(XP_PC)
#ifdef _WIN32
#define IS_LITTLE_ENDIAN 1
#undef IS_BIG_ENDIAN
#define JS_BYTES_PER_BYTE 1L
#define JS_BYTES_PER_SHORT 2L
#define JS_BYTES_PER_INT 4L
#define JS_BYTES_PER_INT64 8L
#define JS_BYTES_PER_LONG 4L
#define JS_BYTES_PER_FLOAT 4L
#define JS_BYTES_PER_DOUBLE 8L
#define JS_BYTES_PER_WORD 4L
#define JS_BYTES_PER_DWORD 8L
#define JS_BITS_PER_BYTE 8L
#define JS_BITS_PER_SHORT 16L
#define JS_BITS_PER_INT 32L
#define JS_BITS_PER_INT64 64L
#define JS_BITS_PER_LONG 32L
#define JS_BITS_PER_FLOAT 32L
#define JS_BITS_PER_DOUBLE 64L
#define JS_BITS_PER_WORD 32L
#define JS_BITS_PER_BYTE_LOG2 3L
#define JS_BITS_PER_SHORT_LOG2 4L
#define JS_BITS_PER_INT_LOG2 5L
#define JS_BITS_PER_INT64_LOG2 6L
#define JS_BITS_PER_LONG_LOG2 5L
#define JS_BITS_PER_FLOAT_LOG2 5L
#define JS_BITS_PER_DOUBLE_LOG2 6L
#define JS_BITS_PER_WORD_LOG2 5L
#define JS_ALIGN_OF_SHORT 2L
#define JS_ALIGN_OF_INT 4L
#define JS_ALIGN_OF_LONG 4L
#define JS_ALIGN_OF_INT64 8L
#define JS_ALIGN_OF_FLOAT 4L
#define JS_ALIGN_OF_DOUBLE 4L
#define JS_ALIGN_OF_POINTER 4L
#define JS_ALIGN_OF_WORD 4L
#define JS_BYTES_PER_WORD_LOG2 2L
#define JS_BYTES_PER_DWORD_LOG2 3L
#define PR_WORDS_PER_DWORD_LOG2 1L
#endif /* _WIN32 */
#if defined(_WINDOWS) && !defined(_WIN32) /* WIN16 */
#define IS_LITTLE_ENDIAN 1
#undef IS_BIG_ENDIAN
#define JS_BYTES_PER_BYTE 1L
#define JS_BYTES_PER_SHORT 2L
#define JS_BYTES_PER_INT 2L
#define JS_BYTES_PER_INT64 8L
#define JS_BYTES_PER_LONG 4L
#define JS_BYTES_PER_FLOAT 4L
#define JS_BYTES_PER_DOUBLE 8L
#define JS_BYTES_PER_WORD 4L
#define JS_BYTES_PER_DWORD 8L
#define JS_BITS_PER_BYTE 8L
#define JS_BITS_PER_SHORT 16L
#define JS_BITS_PER_INT 16L
#define JS_BITS_PER_INT64 64L
#define JS_BITS_PER_LONG 32L
#define JS_BITS_PER_FLOAT 32L
#define JS_BITS_PER_DOUBLE 64L
#define JS_BITS_PER_WORD 32L
#define JS_BITS_PER_BYTE_LOG2 3L
#define JS_BITS_PER_SHORT_LOG2 4L
#define JS_BITS_PER_INT_LOG2 4L
#define JS_BITS_PER_INT64_LOG2 6L
#define JS_BITS_PER_LONG_LOG2 5L
#define JS_BITS_PER_FLOAT_LOG2 5L
#define JS_BITS_PER_DOUBLE_LOG2 6L
#define JS_BITS_PER_WORD_LOG2 5L
#define JS_ALIGN_OF_SHORT 2L
#define JS_ALIGN_OF_INT 2L
#define JS_ALIGN_OF_LONG 2L
#define JS_ALIGN_OF_INT64 2L
#define JS_ALIGN_OF_FLOAT 2L
#define JS_ALIGN_OF_DOUBLE 2L
#define JS_ALIGN_OF_POINTER 2L
#define JS_ALIGN_OF_WORD 2L
#define JS_BYTES_PER_WORD_LOG2 2L
#define JS_BYTES_PER_DWORD_LOG2 3L
#define PR_WORDS_PER_DWORD_LOG2 1L
#endif /* defined(_WINDOWS) && !defined(_WIN32) */
#elif defined(XP_UNIX) || defined(XP_BEOS)
#error "This file is supposed to be auto-generated on UNIX platforms, but the"
#error "static version for Mac and Windows platforms is being used."
#error "Something's probably wrong with paths/headers/dependencies/Makefiles."
#else
#error "Must define one of XP_MAC, XP_PC, or XP_UNIX"
#endif
#endif

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@@ -1,466 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#include "world.h"
#include "debugger.h"
#include <string>
#include <ctype.h>
#include <assert.h>
namespace JavaScript {
namespace Debugger {
using namespace Interpreter;
/* keep in sync with list in debugger.h */
static const char *shell_cmds[][3] = {
{"assemble", "", 0},
{"ambiguous", "", "Test command for ambiguous command detection"},
{"ambiguous2", "", "Test command for ambiguous command detection"},
{"continue", "", "Continue execution until complete."},
{"dissassemble", "[start_pc] [end_pc]", "Dissassemble entire module, or subset of module."},
{"exit", "", 0},
{"help", "", "Display this message."},
{"istep", "", "Execute the current opcode and stop."},
{"let", "", "Set a debugger environment variable."},
{"print", "", 0},
{"register", "", "(nyi) Show the value of a single register or all registers, or set the value of a single register."},
{"step", "", "Execute the current JS statement and stop."},
{0, 0} /* sentry */
};
enum ShellVariable {
TRACE_SOURCE,
TRACE_ICODE,
VARIABLE_COUNT
};
static const char *shell_vars[][3] = {
{"tracesource", "", "(bool) Show JS source while executing."},
{"traceicode", " ", "(bool) Show opcodes while executing."},
{0, 0} /* sentry */
};
/* return true if str2 starts with/is str1
* XXX ignore case */
static bool
startsWith (const String &str1, const String &str2)
{
uint n;
size_t m = str1.size();
if (m > str2.size())
return false;
for (n = 0; n < m; ++n)
if (str1[n] != str2[n])
return false;
return true;
}
/**
* locate the best match for |partial| in the command list |list|.
* if no matches are found, return |length|, if multiple matches are found,
* return |length| plus the number of ambiguous matches
*/
static uint32
matchElement (const String &partial, const char *list[][3], size_t length)
{
uint32 ambig_matches = 0;
uint32 match = length;
for (uint32 i = 0; i < length ; ++i)
{
String possibleMatch (widenCString(list[i][0]));
if (startsWith(partial, possibleMatch))
{
if (partial.size() == possibleMatch.size())
{
/* exact match */
ambig_matches = 0;
return i;
}
else if (match == COMMAND_COUNT) /* no match yet */
match = i;
else
++ambig_matches; /* something already matched,
* ambiguous command */
}
}
if (ambig_matches == 0)
return match;
else
return length + ambig_matches;
}
static void
showHelp(Formatter &out)
{
int i;
out << "JavaScript 2.0 Debugger Help...\n\n";
for (i = 0; shell_cmds[i][0] != 0; i++)
{
out << "Command : " << shell_cmds[i][0] << " " <<
shell_cmds[i][1] << "\n";
if (shell_cmds[i][2])
out << "Help : " << shell_cmds[i][2] << "\n";
else
out << "Help : (probably) Not Implemented.\n";
}
}
static uint32
getClosestSourcePosForPC (Context *cx, InstructionIterator pc)
{
ICodeModule *iCode = cx->getICode();
if (iCode->mInstructionMap->begin() == iCode->mInstructionMap->end())
return NotABanana;
/*NOT_REACHED ("Instruction map is empty, waah.");*/
InstructionMap::iterator pos_iter =
iCode->mInstructionMap->upper_bound (pc - iCode->its_iCode->begin());
if (pos_iter != iCode->mInstructionMap->begin())
--pos_iter;
return pos_iter->second;
}
void
Shell::showSourceAtPC (Context *cx, InstructionIterator pc)
{
if (!mResolveFileCallback)
{
mErr << "Source not available (Debugger was improperly initialized.)\n";
return;
}
ICodeModule *iCode = cx->getICode();
String fn = iCode->getFileName();
const Reader *reader = mResolveFileCallback(fn);
if (!reader)
{
mErr << "Source not available.\n";
return;
}
uint32 pos = getClosestSourcePosForPC(cx, pc);
if (pos == NotABanana)
{
mErr << "Map is empty, cannot display source.\n";
return;
}
uint32 lineNum = reader->posToLineNum (pos);
const char16 *lineBegin, *lineEnd;
uint32 lineStartPos = reader->getLine (lineNum, lineBegin, lineEnd);
String sourceLine (lineBegin, lineEnd);
mOut << fn << ":" << lineNum << " " << sourceLine << "\n";
uint padding = fn.length() + (uint32)(lineNum / 10) + 3;
uint i;
for (i = 0; i < padding; i++)
mOut << " ";
padding = (pos - lineStartPos);
for (i = 0; i < padding; i++)
mOut << ".";
mOut << "^\n";
}
void
Shell::showOpAtPC(Context* cx, InstructionIterator pc)
{
ICodeModule *iCode = cx->getICode();
if ((pc < iCode->its_iCode->begin()) ||
(pc >= iCode->its_iCode->end()))
{
mErr << "PC Out Of Range.";
return;
}
JSValues &registers = cx->getRegisters();
printFormat(mOut, "trace [%02u:%04u]: ",
iCode->mID, (pc - iCode->its_iCode->begin()));
Instruction* i = *pc;
stdOut << *i;
if (i->op() != BRANCH && i->count() > 0) {
mOut << " [";
i->printOperands(stdOut, registers);
mOut << "]\n";
} else {
mOut << '\n';
}
}
void
Shell::listen(Context* cx, Context::Event event)
{
InstructionIterator pc = cx->getPC();
if (mTraceSource)
showSourceAtPC (cx, pc);
if (mTraceICode)
showOpAtPC (cx, pc);
if (!(mStopMask & event))
return;
if ((mLastCommand == STEP) && (mLastICodeID == cx->getICode()->mID) &&
(mLastSourcePos == getClosestSourcePosForPC (cx, cx->getPC())))
/* we're in source-step mode, and the source position hasn't
* changed yet */
return;
if (!mTraceSource && !mTraceICode)
showSourceAtPC (cx, pc);
static String lastLine(widenCString("help\n"));
String line;
LineReader reader(mIn);
do {
stdOut << "jsd";
if (mLastCommand != COMMAND_COUNT)
stdOut << " (" << shell_cmds[mLastCommand][0] << ") ";
stdOut << "> ";
reader.readLine(line);
if (line[0] == uni::lf)
line = lastLine;
else
lastLine = line;
} while (doCommand(cx, line));
}
/**
* lex and execute the debugger command in |source|, return true if the
* command does not require the script being debugged to continue (eg, ask
* for more debugger input.)
*/
bool
Shell::doCommand (Interpreter::Context *cx, const String &source)
{
Lexer lex (mWorld, source, widenCString("debugger console"), 0);
const String *cmd;
uint32 match;
bool rv = true;
const Token &t = lex.get(true);
if (t.hasKind(Token::identifier))
cmd = &(t.getIdentifier());
else
{
mErr << "you idiot.\n";
return true;
}
match = matchElement (*cmd, shell_cmds, (size_t)COMMAND_COUNT);
if (match <= (uint32)COMMAND_COUNT)
{
switch ((ShellCommand)match)
{
case COMMAND_COUNT:
mErr << "Unknown command '" << *cmd << "'.\n";
break;
case AMBIGUOUS:
case AMBIGUOUS2:
mErr << "I pity the foogoo.\n";
break;
case CONTINUE:
mStopMask &= (Context::EV_ALL ^ Context::EV_STEP);
rv = false;
break;
case DISSASSEMBLE:
mOut << *cx->getICode();
break;
case HELP:
showHelp (mOut);
break;
case PRINT:
doPrint (cx, lex);
break;
case STEP:
mStopMask |= Context::EV_STEP;
rv = false;
break;
case LET:
doSetVariable (lex);
break;
default:
mErr << "Input '" << *cmd << "' matched unimplemented " <<
"command '" << shell_cmds[match][0] << "'.\n";
break;
}
mLastSourcePos = getClosestSourcePosForPC (cx, cx->getPC());
mLastICodeID = cx->getICode()->mID;
mLastCommand = (ShellCommand)match;
} else
mErr << "Ambiguous command '" << *cmd << "', " <<
(match - (uint32)COMMAND_COUNT + 1) << " similar commands.\n";
return rv;
}
void
Shell::doSetVariable (Lexer &lex)
{
uint32 match;
const String *varname;
const Token *t = &(lex.get(true));
if (t->hasKind(Token::identifier))
varname = &(t->getIdentifier());
else
{
mErr << "invalid variable name.\n";
return;
}
match = matchElement (*varname, shell_vars, (size_t)VARIABLE_COUNT);
if (match <= (uint32)VARIABLE_COUNT)
switch ((ShellVariable)match)
{
case VARIABLE_COUNT:
mErr << "Unknown variable '" << *varname << "'.\n";
break;
case TRACE_SOURCE:
t = &(lex.get(true));
if (t->hasKind(Token::assignment))
t = &(lex.get(true)); /* optional = */
if (t->hasKind(Token::True))
mTraceSource = true;
else if (t->hasKind(Token::False))
mTraceSource = false;
else
goto badval;
break;
case TRACE_ICODE:
t = &(lex.get(true));
if (t->hasKind(Token::assignment))
t = &(lex.get(true)); /* optional = */
if (t->hasKind(Token::True))
mTraceICode = true;
else if (t->hasKind(Token::False))
mTraceICode = false;
else
goto badval;
break;
default:
mErr << "Variable '" << *varname <<
"' matched unimplemented variable '" <<
shell_vars[match][0] << "'.\n";
}
else
mErr << "Ambiguous variable '" << *varname << "', " <<
(match - (uint32)COMMAND_COUNT + 1) << " similar variables.\n";
return;
badval:
mErr << "Invalid value for variable '" <<
shell_vars[(ShellVariable)match][0] << "'\n";
}
void
Shell::doPrint (Context *, Lexer &lex)
{
const Token *t = &(lex.get(true));
if (!(t->hasKind(Token::identifier)))
{
mErr << "Invalid register name.\n";
return;
}
/*
const StringAtom *name = &(t->getIdentifier());
VariableMap::iterator i = ((cx->getICode())->itsVariables)->find(*name);
// if (i)
mOut << (*i).first << " = " << (*i).second << "\n";
// else
// mOut << "No " << *name << " defined.\n";
*/
}
} /* namespace Debugger */
} /* namespace JavaScript */

View File

@@ -1,163 +0,0 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the JavaScript 2 Prototype.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/* this is all vapor, don't take it to serious yet */
#ifndef debugger_h
#define debugger_h
#include "utilities.h"
#include "interpreter.h"
#include <stdio.h>
namespace JavaScript {
namespace Debugger {
using namespace Interpreter;
class Shell;
typedef const Reader *ResolveFileCallback (const String &fileName);
typedef bool DebuggerCommandCallback (Shell &debugger, const Lexer &lex);
class Breakpoint {
public:
/* representation of a breakpoint */
void set();
void clear();
bool getState();
InstructionIterator getPC();
};
struct DebuggerCommand
{
DebuggerCommand(String aName, String aParamDesc, String aShortHelp,
String aLongHelp = widenCString("No more help available."),
DebuggerCommandCallback *aCommandFunction = 0)
: mName(aName), mParamDesc(aParamDesc), mShortHelp(aShortHelp),
mLongHelp(aLongHelp), mCommandFunction(aCommandFunction) {}
String mName;
String mParamDesc;
String mShortHelp;
String mLongHelp;
DebuggerCommandCallback *mCommandFunction;
};
/* keep in sync with list in debugger.cpp */
enum ShellCommand {
ASSEMBLE,
AMBIGUOUS,
AMBIGUOUS2,
CONTINUE,
DISSASSEMBLE,
EXIT,
HELP,
ISTEP,
LET,
PRINT,
REGISTER,
STEP,
COMMAND_COUNT
};
class Shell : public Context::Listener {
public:
Shell (World &aWorld, FILE *aIn, Formatter &aOut, Formatter &aErr,
ResolveFileCallback *aCallback = 0) :
mWorld(aWorld), mIn(aIn), mOut(aOut), mErr(aErr),
mResolveFileCallback(aCallback), mStopMask(Context::EV_DEBUG),
mTraceSource(false), mTraceICode(false), mLastSourcePos(0),
mLastICodeID(NotABanana), mLastCommand(COMMAND_COUNT)
{
}
~Shell ()
{
}
ResolveFileCallback
*setResolveFileCallback (ResolveFileCallback *aCallback)
{
ResolveFileCallback *rv = mResolveFileCallback;
mResolveFileCallback = aCallback;
return rv;
}
void listen(Context *context, Context::Event event);
/**
* install on a context
*/
bool attachToContext (Context *aContext)
{
aContext->addListener (this);
return true;
}
/**
* detach an icdebugger from a context
*/
bool detachFromContext (Context *aContext)
{
aContext->removeListener (this);
return true;
}
FILE *getIStream() { return mIn; }
Formatter &getOStream() { return mOut; }
Formatter &getEStream() { return mErr; }
private:
bool doCommand (Context *cx, const String &aSource);
void doSetVariable (Lexer &lex);
void doPrint (Context *cx, Lexer &lex);
void showOpAtPC(Context* cx, InstructionIterator pc);
void showSourceAtPC(Context* cx, InstructionIterator pc);
World &mWorld;
FILE *mIn;
Formatter &mOut, &mErr;
ResolveFileCallback *mResolveFileCallback;
uint32 mStopMask;
bool mTraceSource, mTraceICode;
uint32 mLastSourcePos, mLastICodeID;
ShellCommand mLastCommand;
};
} /* namespace Debugger */
} /* namespace JavaScript */
#endif /* debugger_h */

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@@ -1,26 +0,0 @@
debugger.o: debugger.cpp world.h utilities.h systemtypes.h hash.h \
parser.h debugger.h interpreter.h jstypes.h gc_allocator.h vmtypes.h \
numerics.h jsclasses.h icode.h icodegenerator.h
gc_allocator.o: gc_allocator.cpp gc_allocator.h gc_container.h
hash.o: hash.cpp hash.h utilities.h systemtypes.h
icodegenerator.o: icodegenerator.cpp numerics.h utilities.h \
systemtypes.h world.h hash.h parser.h vmtypes.h jstypes.h \
gc_allocator.h jsclasses.h icode.h icodegenerator.h interpreter.h
interpreter.o: interpreter.cpp interpreter.h utilities.h systemtypes.h \
jstypes.h gc_allocator.h vmtypes.h numerics.h jsclasses.h world.h \
hash.h parser.h icode.h icodegenerator.h jsmath.h
js2.o: js2.cpp world.h utilities.h systemtypes.h hash.h parser.h \
interpreter.h jstypes.h gc_allocator.h vmtypes.h numerics.h \
jsclasses.h icode.h icodegenerator.h debugger.h
jsmath.o: jsmath.cpp jsmath.h jstypes.h utilities.h systemtypes.h \
gc_allocator.h
jstypes.o: jstypes.cpp jstypes.h utilities.h systemtypes.h \
gc_allocator.h jsclasses.h numerics.h icodegenerator.h parser.h \
vmtypes.h world.h hash.h icode.h
numerics.o: numerics.cpp numerics.h utilities.h systemtypes.h
parser.o: parser.cpp numerics.h utilities.h systemtypes.h parser.h \
world.h hash.h
utilities.o: utilities.cpp utilities.h systemtypes.h
vmtypes.o: vmtypes.cpp utilities.h systemtypes.h vmtypes.h numerics.h \
jstypes.h gc_allocator.h jsclasses.h world.h hash.h parser.h icode.h
world.o: world.cpp world.h utilities.h systemtypes.h hash.h parser.h

View File

@@ -1,150 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 2000 Netscape Communications Corporation. All
// Rights Reserved.
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include "gc_allocator.h"
#include "gc_container.h"
/*
namespace JavaScript {
template <class T>
typename gc_allocator<T>::pointer
gc_allocator<T>::allocate(gc_allocator<T>::size_type n, const void*)
{
return static_cast<pointer>(GC_malloc(n*sizeof(T)));
}
template <class T>
void gc_allocator<T>::deallocate(gc_allocator<T>::pointer ptr, gc_allocator<T>::size_type)
{
// this can really be a NO-OP with the GC.
// ::GC_free(static_cast<void*>(ptr));
}
}
*/
// test driver for standalone GC development.
namespace JS = JavaScript;
template <class T>
void* operator new(std::size_t, const JS::gc_allocator<T>& alloc)
{
return alloc.allocate(1);
}
/**
* Define a C++ class that is garbage collectable, and wants to have its destructor
* called when it is finalized.
*/
class A {
public:
typedef JS::gc_traits_finalizable<A> traits;
typedef JS::gc_allocator<A, traits> allocator;
friend struct traits;
static int instances;
void* operator new(std::size_t)
{
return allocator::allocate(1);
}
A()
{
++instances;
std::cout << "A::A() here." << std::endl;
}
protected:
~A()
{
--instances;
std::cout << "A::~A() here." << std::endl;
}
private:
// void operator delete(void*) {}
};
int A::instances = 0;
int main(int /* argc */, char* /* argv[] */)
{
using namespace std;
using namespace JS;
cout << "testing the GC allocator." << endl;
#ifdef XP_MAC
// allocate a string, using the GC, and owned by an auto_ptr, that knows how to correctly destroy the string.
typedef gc_container<char>::string char_string;
typedef gc_allocator<char_string> char_string_alloc;
auto_ptr<char_string, char_string_alloc> ptr(new(char_string_alloc()) char_string("This is a garbage collectable string."));
const char_string& str = *ptr;
cout << str << endl;
#endif
// question, how can we partially evaluate a template?
// can we say, typedef template <class T> vector<typename T>.
// typedef vector<int, gc_allocator<int> > int_vector;
typedef gc_container<int>::vector int_vector;
// generate 1000 random values.
int_vector values;
for (int i = 0; i < 1000; ++i) {
int value = rand() % 32767;
values.push_back(value);
// allocate a random amount of garbage.
if (!GC_malloc(static_cast<size_t>(value)))
cerr << "GC_malloc failed." << endl;
// allocate an object that has a finalizer to call its destructor.
A* a = new A();
}
// run a collection.
// gc_allocator<void>::collect();
GC_gcollect();
// print out instance count.
cout << "A::instances = " << A::instances << endl;
// sort the values.
sort(values.begin(), values.end());
// print the values.
int_vector::iterator iter = values.begin(), last = values.end();
cout << *iter++;
while (iter < last)
cout << ' ' << *iter++;
cout << endl;
#ifdef XP_MAC
// finally, print the string again.
cout << str << endl;
#endif
return 0;
}

View File

@@ -1,178 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 2000 Netscape Communications Corporation. All
// Rights Reserved.
#ifndef gc_allocator_h
#define gc_allocator_h
#include <memory>
#ifndef _WIN32 // Microsoft VC6 bug: standard identifiers should be in std namespace
using std::size_t;
using std::ptrdiff_t;
#endif
namespace JavaScript {
extern "C" {
void* GC_malloc(size_t bytes);
void* GC_malloc_atomic(size_t bytes);
void GC_free(void* ptr);
void GC_gcollect(void);
typedef void (*GC_finalization_proc) (void* obj, void* client_data);
void GC_register_finalizer(void* obj, GC_finalization_proc proc, void* client_data,
GC_finalization_proc *old_proc, void* *old_client_data);
}
#if 0 && !defined(XP_MAC)
// for platforms where GC doesn't exist yet.
inline void* GC_malloc(size_t bytes) { return ::operator new(bytes); }
inline void* GC_malloc_atomic(size_t bytes) { return ::operator new(bytes); }
inline void GC_free(void* ptr) { operator delete(ptr); }
inline void GC_gcollect() {}
inline void GC_register_finalizer(void* obj, GC_finalization_proc proc, void* client_data,
GC_finalization_proc *old_proc, void* *old_client_data) {}
#endif
/**
* General case: memory for type must be allocated as a conservatively
* scanned block of memory.
*/
template <class T> struct gc_traits {
static T* allocate(size_t n) { return static_cast<T*>(GC_malloc(n * sizeof(T))); }
};
/**
* Specializations for blocks of atomic types: the macro define_atomic_type(_type)
* specializes gc_traits<T> for types that need not be scanned by the
* GC. Implementors are free to define other types as atomic, if they are
* guaranteed not to contain pointers.
*/
#define define_atomic_type(_type) \
template <> struct gc_traits<_type> { \
static _type* allocate(size_t n) \
{ \
return static_cast<_type*>(GC_malloc_atomic(n * sizeof(_type))); \
} \
};
define_atomic_type(char)
define_atomic_type(unsigned char)
define_atomic_type(short)
define_atomic_type(unsigned short)
define_atomic_type(int)
define_atomic_type(unsigned int)
define_atomic_type(long)
define_atomic_type(unsigned long)
define_atomic_type(float)
define_atomic_type(double)
#undef define_atomic_type
/**
* Traits for classes that need to have their destructor called
* when reclaimed by the garbage collector.
*/
template <class T> struct gc_traits_finalizable {
static void finalizer(void* obj, void* client_data)
{
T* t = static_cast<T*>(obj);
size_t n = reinterpret_cast<size_t>(client_data);
for (size_t i = 0; i < n; ++i)
t[i].~T();
}
static T* allocate(size_t n)
{
T* t = gc_traits<T>::allocate(n);
GC_finalization_proc old_proc; void* old_client_data;
GC_register_finalizer(t, &finalizer, reinterpret_cast<void*>(n), &old_proc, &old_client_data);
return t;
}
};
/**
* An allocator that can be used to allocate objects in the garbage collected heap.
*/
template <class T, class traits = gc_traits<T> > class gc_allocator {
public:
typedef T value_type;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef T *pointer;
typedef const T *const_pointer;
typedef T &reference;
typedef const T &const_reference;
gc_allocator() {}
template<typename U, typename UTraits> gc_allocator(const gc_allocator<U, UTraits>&) {}
// ~gc_allocator() {}
static pointer address(reference r) { return &r; }
static const_pointer address(const_reference r) { return &r; }
static pointer allocate(size_type n, const void* /* hint */ = 0) { return traits::allocate(n); }
static void deallocate(pointer, size_type) {}
static void construct(pointer p, const T &val) { new(p) T(val);}
static void destroy(pointer p) { p->~T(); }
#if defined(__GNUC__) || defined(_WIN32)
static size_type max_size() { return size_type(-1) / sizeof(T); }
#else
static size_type max_size() { return std::numeric_limits<size_type>::max() / sizeof(T); }
#endif
template<class U> struct rebind { typedef gc_allocator<U> other; };
#ifdef _WIN32
// raw byte allocator used on some platforms (grrr).
typedef char _Char[1];
static char* _Charalloc(size_type n) { return (char*) rebind<_Char>::other::allocate(n); }
// funky operator required for calling basic_string<T> constructor (grrr).
template<typename U, typename UTraits> int operator==(const gc_allocator<U, UTraits>&) { return 0; }
#endif
// void* deallocate used on some platforms (grrr).
static void deallocate(void*, size_type) {}
static void collect() { GC_gcollect(); }
};
/**
* Generic base class for objects allocated using a gc_allocator. How they are allocated
* can be controlled by specializing gc_traits for the specific class.
*/
template <typename T> class gc_object {
public:
void* operator new(size_t) { return gc_allocator<T>::allocate(1, 0); }
void operator delete(void* /* ptr */) {}
};
/**
* Simpler base class for classes that have no need to specialize allocation behavior.
*/
class gc_base {
public:
void* operator new(size_t n) { return GC_malloc(n); }
void operator delete(void*) {}
};
}
#endif /* gc_allocator_h */

View File

@@ -1,71 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 2000 Netscape Communications Corporation. All
// Rights Reserved.
#ifndef gc_container_h
#define gc_container_h
#include "gc_allocator.h"
#include <list>
#include <vector>
#include <string>
#define LIST std::list
#define VECTOR std::vector
#if defined(__GNUC__)
// grr, what kind of standard is this?
#define STRING basic_string
#define CHAR_TRAITS string_char_traits
#else
#define STRING std::basic_string
#define CHAR_TRAITS std::char_traits
#endif
namespace JavaScript {
/**
* Rebind some of the basic container types to use a GC_allocator.
* What I really want is something more general, something like:
* template <typename Container, typename T> class gc_rebind {
* typedef typename Container<T, gc_allocator<T> > other;
* };
* But I can't figure out how to do that with C++ templates.
*/
template <class T> struct gc_container {
typedef typename LIST<T, gc_allocator<T> > list;
typedef typename VECTOR<T, gc_allocator<T> > vector;
typedef typename STRING<T, CHAR_TRAITS<T>, gc_allocator<T> > string;
};
/**
* But, it's pretty easy to do with macros:
*/
#define GC_CONTAINER(container, type) container<T, gc_allocator<T> >
/*
// this gives an "unimplemented C++ feature" error using CWPro5.
// maybe someday.
template <template<class, class> typename Container, typename T>
struct gc_rebind {
typedef typename Container<T, gc_allocator<T> > container;
};
*/
}
#endif /* gc_container_h */

View File

@@ -1,173 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 1998 Netscape Communications Corporation. All
// Rights Reserved.
#include "hash.h"
#include <new>
namespace JS = JavaScript;
//
// Hash Codes
//
// General-purpose null-terminated C string hash function
JS::HashNumber JS::hashString(const char *s)
{
HashNumber h = 0;
uchar ch;
while ((ch = (uchar)*s++) != 0)
h = (h >> 28) ^ (h << 4) ^ ch;
return h;
}
// General-purpose String hash function
JS::HashNumber JS::hashString(const String &s)
{
HashNumber h = 0;
String::const_iterator p = s.begin();
String::size_type n = s.size();
if (n < 16)
// Hash every character in a short string.
while (n--)
h = (h >> 28) ^ (h << 4) ^ *p++;
else
// Sample a la java.lang.String.hash().
for (String::size_type m = n / 8; n >= m; p += m, n -= m)
h = (h >> 28) ^ (h << 4) ^ *p;
return h;
}
//
// Hash Tables
//
const uint minLgNBuckets = 4;
JS::GenericHashTableIterator::GenericHashTableIterator(GenericHashTable &ht):
ht(ht), entry(0), nextBucket(ht.buckets)
{
DEBUG_ONLY(++ht.nReferences);
operator++();
}
JS::GenericHashTableIterator &
JS::GenericHashTableIterator::operator++()
{
GenericHashEntry *e = entry;
if (e) {
backpointer = &e->next;
e = e->next;
}
if (!e) {
GenericHashEntry **const bucketsEnd = ht.bucketsEnd;
GenericHashEntry **bucket = nextBucket;
while (bucket != bucketsEnd) {
e = *bucket++;
if (e) {
backpointer = bucket-1;
break;
}
}
nextBucket = bucket;
}
entry = e;
return *this;
}
JS::GenericHashTable::GenericHashTable(uint32 nEntriesDefault):
nEntries(0)
{
DEBUG_ONLY(nReferences = 0);
uint lgNBuckets = ceilingLog2(nEntriesDefault);
if (lgNBuckets < minLgNBuckets)
lgNBuckets = minLgNBuckets;
defaultLgNBuckets = lgNBuckets;
recomputeMinMaxNEntries(lgNBuckets);
uint32 nBuckets = JS_BIT(lgNBuckets);
buckets = new GenericHashEntry*[nBuckets];
// No exceptions after this point unless buckets is deleted.
bucketsEnd = buckets + nBuckets;
zero(buckets, bucketsEnd);
}
// Initialize shift, minNEntries, and maxNEntries based on the lg2 of the
// number of buckets.
void JS::GenericHashTable::recomputeMinMaxNEntries(uint lgNBuckets)
{
uint32 nBuckets = JS_BIT(lgNBuckets);
shift = 32 - lgNBuckets;
maxNEntries = nBuckets; // Maximum ratio is 100%
minNEntries = lgNBuckets <= defaultLgNBuckets ? 0 : 3*(nBuckets>>3); // Minimum ratio is 37.5%
}
// Rehash the table. This method cannot throw out-of-memory exceptions, so it is
// safe to call from a destructor.
void JS::GenericHashTable::rehash()
{
uint32 newLgNBuckets = ceilingLog2(nEntries);
if (newLgNBuckets < defaultLgNBuckets)
newLgNBuckets = defaultLgNBuckets;
uint32 newNBuckets = JS_BIT(newLgNBuckets);
try {
GenericHashEntry **newBuckets = new GenericHashEntry*[newNBuckets];
// No exceptions after this point.
GenericHashEntry **newBucketsEnd = newBuckets + newNBuckets;
zero(newBuckets, newBucketsEnd);
recomputeMinMaxNEntries(newLgNBuckets);
GenericHashEntry **be = bucketsEnd;
for (GenericHashEntry **b = buckets; b != be; b++) {
GenericHashEntry *e = *b;
while (e) {
GenericHashEntry *next = e->next;
// Place e in the new set of buckets.
GenericHashEntry **nb = newBuckets + (e->keyHash*goldenRatio >> shift);
e->next = *nb;
*nb = e;
e = next;
}
}
delete[] buckets;
buckets = newBuckets;
bucketsEnd = newBucketsEnd;
} catch (std::bad_alloc) {
// Out of memory. Ignore the error and just relax the resizing boundaries.
if (buckets + JS_BIT(newLgNBuckets) > bucketsEnd)
maxNEntries >>= 1;
else
minNEntries <<= 1;
}
}

View File

@@ -1,373 +0,0 @@
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
//
// The contents of this file are subject to the Netscape Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/NPL/
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code is the JavaScript 2 Prototype.
//
// The Initial Developer of the Original Code is Netscape
// Communications Corporation. Portions created by Netscape are
// Copyright (C) 1998 Netscape Communications Corporation. All
// Rights Reserved.
#ifndef hash_h
#define hash_h
#include "utilities.h"
namespace JavaScript {
//
// Hash Codes
//
typedef uint32 HashNumber;
HashNumber hashString(const char *s);
HashNumber hashString(const String &s);
template<class Key>
struct Hash {
HashNumber operator()(Key key) const;
};
template<class Key>
inline HashNumber Hash<Key>::operator()(Key key) const
{
return hashString(key);
}
const HashNumber goldenRatio = 0x9E3779B9U;
//
// Private
//
// Base class for user-defined hash entries.
// private
class GenericHashEntry {
public:
GenericHashEntry *next; // Link to next entry in the same bucket
const HashNumber keyHash; // This entry's hash value
protected:
explicit GenericHashEntry(HashNumber keyHash): next(0), keyHash(keyHash) {}
friend class GenericHashTable;
};
// private
class GenericHashTableIterator;
class GenericHashTable {
protected:
GenericHashEntry **buckets; // Vector of hash buckets
GenericHashEntry **bucketsEnd; // Pointer past end of vector of hash buckets
uint defaultLgNBuckets; // lg2 of minimum number of buckets for which to size the table
uint32 nEntries; // Number of entries in table
uint32 minNEntries; // Minimum number of entries without rehashing
uint32 maxNEntries; // Maximum number of entries without rehashing
uint32 shift; // 32 - lg2(number of buckets)
#ifdef DEBUG
public:
uint32 nReferences; // Number of iterators and references currently pointing to this hash table
#endif
public:
explicit GenericHashTable(uint32 nEntriesDefault);
~GenericHashTable() {
#ifndef _WIN32
ASSERT(nReferences == 0);
#endif
delete[] buckets;
}
void recomputeMinMaxNEntries(uint lgNBuckets);
void rehash();
void maybeGrow() {if (nEntries > maxNEntries) rehash();}
void maybeShrink() {if (nEntries < minNEntries) rehash();}
friend class GenericHashTableIterator;
typedef GenericHashTableIterator Iterator;
};
// This ought to be GenericHashTable::Iterator, but this doesn't work due to a
// Microsoft VC6 bug.
class GenericHashTableIterator {
protected:
GenericHashTable &ht; // Hash table being iterated
GenericHashEntry *entry; // Current entry; nil if done
GenericHashEntry **backpointer; // Pointer to pointer to current entry
GenericHashEntry **nextBucket; // Next bucket; pointer past end of vector of hash buckets if done
public:
explicit GenericHashTableIterator(GenericHashTable &ht);
~GenericHashTableIterator() {ht.maybeShrink(); DEBUG_ONLY(--ht.nReferences);}
operator bool() const {return entry != 0;} // Return true if there are entries left.
GenericHashTableIterator &operator++();
};
//
// Hash Tables
//
template<class Data, class Key, class H = Hash<Key> >
class HashTable: private GenericHashTable {
H hasher; // Hash function
struct Entry: public GenericHashEntry {
Data data;
Entry(HashNumber keyHash, Key key): GenericHashEntry(keyHash), data(key) {}
template<class Value>
Entry(HashNumber keyHash, Key key, Value value): GenericHashEntry(keyHash), data(key, value) {}
};
public:
class Reference {
#ifdef _WIN32 // Microsoft VC6 bug: friend declarations to inner classes don't work
public:
#endif
Entry *entry; // Current entry; nil if done
GenericHashEntry **backpointer; // Pointer to pointer to current entry
const HashNumber keyHash; // This entry's key's hash value
#ifdef DEBUG
GenericHashTable *ht; // Hash table to which this Reference points
#endif
public:
#ifndef _WIN32
Reference(HashTable &ht, Key key); // Search for an entry with the given key.
#else // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
Reference(HashTable &ht, Key key): keyHash(ht.hasher(key)) {
#ifdef DEBUG
Reference::ht = &ht;
++ht.nReferences;
#endif
HashNumber kh = keyHash;
HashNumber h = kh*goldenRatio >> ht.shift;
GenericHashEntry **bp = ht.buckets + h;
Entry *e;
while ((e = static_cast<Entry *>(*bp)) != 0 && !(e->keyHash == kh && e->data == key))
bp = &e->next;
entry = e;
backpointer = bp;
}
#endif
private:
Reference(const Reference&); // No copy constructor
void operator=(const Reference&); // No assignment operator
public:
#if defined(DEBUG) && !defined(_WIN32)
~Reference() {if (ht) --ht->nReferences;}
#endif
operator bool() const {return entry != 0;} // Return true if an entry was found.
Data &operator*() const {ASSERT(entry); return entry->data;} // Return the data of the entry that was found.
friend class HashTable;
};
class Iterator: public GenericHashTableIterator {
public:
explicit Iterator(HashTable &ht): GenericHashTableIterator(ht) {}
private:
Iterator(const Iterator&); // No copy constructor
void operator=(const Iterator&); // No assignment operator
public:
// Go to next entry.
Iterator &operator++() {return *static_cast<Iterator*>(&GenericHashTableIterator::operator++());}
Data &operator*() const {ASSERT(entry); return static_cast<Entry *>(entry)->data;} // Return current entry's data.
void erase();
};
HashTable(uint32 nEntriesDefault = 0, const H &hasher = H()): GenericHashTable(nEntriesDefault), hasher(hasher) {}
~HashTable();
template<class Value> Data &insert(Reference &r, Key key, Value value);
Data &insert(Reference &r, Key key);
Data &insert(Key key);
void erase(Reference &r);
void erase(Key key);
Data *operator[](Key key);
friend class Reference;
friend class Iterator;
#ifndef _WIN32
template<class Value> Data &insert(Key key, Value value);
#else // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
template<class Value> Data &insert(Key key, Value value) {
Reference r(*this, key);
if (r)
return *r = value;
else
return insert(r, key, value);
}
#endif
};
//
// Implementation
//
template<class Data, class Key, class H>
HashTable<Data, Key, H>::~HashTable()
{
GenericHashEntry **be = bucketsEnd;
for (GenericHashEntry **b = buckets; b != be; b++) {
Entry *e = static_cast<Entry *>(*b);
while (e) {
Entry *next = static_cast<Entry *>(e->next);
delete e;
e = next;
}
}
}
#ifndef _WIN32
template<class Data, class Key, class H>
HashTable<Data, Key, H>::Reference::Reference(HashTable &ht, Key key):
keyHash(ht.hasher(key))
{
#ifdef DEBUG
Reference::ht = &ht;
++ht.nReferences;
#endif
HashNumber kh = keyHash;
HashNumber h = kh*goldenRatio >> ht.shift;
GenericHashEntry **bp = ht.buckets + h;
Entry *e;
while ((e = static_cast<Entry *>(*bp)) != 0 && !(e->keyHash == kh && e->data == key))
bp = &e->next;
entry = e;
backpointer = bp;
}
// Insert the given key/value pair into the hash table. Reference must
// be the result of an unsuccessful search for that key in the table.
// The reference is not valid after this method is called.
// Return a reference to the new entry's value.
template<class Data, class Key, class H> template<class Value>
inline Data &HashTable<Data, Key, H>::insert(Reference &r, Key key, Value value)
{
ASSERT(r.ht == this && !r.entry);
Entry *e = new Entry(r.keyHash, key, value);
*r.backpointer = e;
++nEntries;
maybeGrow();
#ifdef DEBUG
--r.ht->nReferences;
r.ht = 0;
#endif
return e->data;
}
#endif
// Same as above but without a Value argument.
template<class Data, class Key, class H>
inline Data &HashTable<Data, Key, H>::insert(Reference &r, Key key)
{
ASSERT(r.ht == this && !r.entry);
Entry *e = new Entry(r.keyHash, key);
*r.backpointer = e;
++nEntries;
maybeGrow();
#ifdef DEBUG
--r.ht->nReferences;
r.ht = 0;
#endif
return e->data;
}
// Insert the given key/value pair into the hash table. If an entry with a
// matching key already exists, replace that entry's value.
// Return a reference to the new entry's value.
#ifndef _WIN32 // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
template<class Data, class Key, class H> template<class Value>
Data &HashTable<Data, Key, H>::insert(Key key, Value value)
{
Reference r(*this, key);
if (r)
return *r = value;
else
return insert(r, key, value);
}
#endif
// Same as above but without a Value argument.
template<class Data, class Key, class H>
Data &HashTable<Data, Key, H>::insert(Key key)
{
Reference r(*this, key);
if (r)
return *r;
else
return insert(r, key);
}
// Reference r must point to an existing entry. Delete that entry.
// The reference is not valid after this method is called.
template<class Data, class Key, class H>
inline void HashTable<Data, Key, H>::erase(Reference &r)
{
Entry *e = r.entry;
ASSERT(r.ht == this && e);
*r.backpointer = e->next;
--nEntries;
delete e;
#ifdef DEBUG
--r.ht->nReferences;
r.ht = 0;
#endif
maybeShrink();
}
// Remove the hash table entry, if any, matching the given key.
template<class Data, class Key, class H>
void HashTable<Data, Key, H>::erase(Key key)
{
Reference r(*this, key);
if (r)
erase(r);
}
// Return a pointer to the value of the hash table entry matching the given key.
// Return nil if no entry matches.
template<class Data, class Key, class H>
Data *HashTable<Data, Key, H>::operator[](Key key)
{
Reference r(*this, key);
if (r)
return &*r;
else
return 0;
}
}
#endif

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