452 lines
21 KiB
C++
452 lines
21 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the JavaScript 2 Prototype.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifdef _WIN32
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#include "msvc_pragma.h"
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#endif
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#include <algorithm>
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#include <list>
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#include <map>
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#include <stack>
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#include <assert.h>
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#include <ctype.h>
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#include "world.h"
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#include "utilities.h"
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#include "js2value.h"
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#include "numerics.h"
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#include "reader.h"
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#include "parser.h"
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#include "regexp.h"
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#include "js2engine.h"
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#include "bytecodecontainer.h"
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#include "js2metadata.h"
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#include "jslong.h"
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#include "fdlibm_ns.h"
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#include "prmjtime.h"
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namespace JavaScript {
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namespace MetaData {
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void RegExpInstance::setLastIndex(JS2Metadata *meta, js2val a)
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{
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meta->regexpClass->WritePublic(meta, OBJECT_TO_JS2VAL(this), meta->world.identifiers["lastIndex"], true, a);
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}
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void RegExpInstance::setGlobal(JS2Metadata *meta, js2val a)
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{
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meta->regexpClass->WritePublic(meta, OBJECT_TO_JS2VAL(this), meta->world.identifiers["global"], true, a);
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}
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void RegExpInstance::setMultiline(JS2Metadata *meta, js2val a)
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{
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meta->regexpClass->WritePublic(meta, OBJECT_TO_JS2VAL(this), meta->world.identifiers["multiline"], true, a);
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}
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void RegExpInstance::setIgnoreCase(JS2Metadata *meta, js2val a)
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{
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meta->regexpClass->WritePublic(meta, OBJECT_TO_JS2VAL(this), meta->world.identifiers["ignoreCase"], true, a);
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}
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void RegExpInstance::setSource(JS2Metadata *meta, js2val a)
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{
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meta->regexpClass->WritePublic(meta, OBJECT_TO_JS2VAL(this), meta->world.identifiers["source"], true, a);
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}
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js2val RegExpInstance::getLastIndex(JS2Metadata *meta)
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{
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js2val r;
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js2val thisVal = OBJECT_TO_JS2VAL(this);
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if (!meta->regexpClass->ReadPublic(meta, &thisVal, meta->world.identifiers["lastIndex"], RunPhase, &r))
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ASSERT(false);
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return r;
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}
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js2val RegExpInstance::getGlobal(JS2Metadata *meta)
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{
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js2val r;
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js2val thisVal = OBJECT_TO_JS2VAL(this);
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if (!meta->regexpClass->ReadPublic(meta, &thisVal, meta->world.identifiers["global"], RunPhase, &r))
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ASSERT(false);
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return r;
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}
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js2val RegExpInstance::getMultiline(JS2Metadata *meta)
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{
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js2val r;
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js2val thisVal = OBJECT_TO_JS2VAL(this);
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if (!meta->regexpClass->ReadPublic(meta, &thisVal, meta->world.identifiers["multiline"], RunPhase, &r))
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ASSERT(false);
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return r;
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}
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js2val RegExpInstance::getIgnoreCase(JS2Metadata *meta)
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{
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js2val r;
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js2val thisVal = OBJECT_TO_JS2VAL(this);
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if (!meta->regexpClass->ReadPublic(meta, &thisVal, meta->world.identifiers["ignoreCase"], RunPhase, &r))
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ASSERT(false);
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return r;
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}
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js2val RegExpInstance::getSource(JS2Metadata *meta)
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{
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js2val r;
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js2val thisVal = OBJECT_TO_JS2VAL(this);
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if (!meta->regexpClass->ReadPublic(meta, &thisVal, meta->world.identifiers["source"], RunPhase, &r))
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ASSERT(false);
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return r;
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}
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js2val RegExp_toString(JS2Metadata *meta, const js2val thisValue, js2val *argv, uint32 argc)
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{
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if (!JS2VAL_IS_OBJECT(thisValue)
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|| (JS2VAL_TO_OBJECT(thisValue)->kind != SimpleInstanceKind)
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|| (checked_cast<SimpleInstance *>(JS2VAL_TO_OBJECT(thisValue))->type != meta->regexpClass))
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meta->reportError(Exception::typeError, "RegExp.toString can only be applied to RegExp objects", meta->engine->errorPos());
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RegExpInstance *thisInst = checked_cast<RegExpInstance *>(JS2VAL_TO_OBJECT(thisValue));
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js2val srcval = thisInst->getSource(meta);
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ASSERT(JS2VAL_IS_STRING(srcval));
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const String *s = JS2VAL_TO_STRING(srcval);
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String result = "/" + *s + "/";
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js2val flagVal = thisInst->getGlobal(meta);
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ASSERT(JS2VAL_IS_BOOLEAN(flagVal));
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if (JS2VAL_TO_BOOLEAN(flagVal))
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result += "g";
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flagVal = thisInst->getIgnoreCase(meta);
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ASSERT(JS2VAL_IS_BOOLEAN(flagVal));
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if (JS2VAL_TO_BOOLEAN(flagVal))
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result += "i";
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flagVal = thisInst->getMultiline(meta);
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ASSERT(JS2VAL_IS_BOOLEAN(flagVal));
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if (JS2VAL_TO_BOOLEAN(flagVal))
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result += "m";
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return meta->engine->allocString(result);
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}
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js2val RegExp_exec_sub(JS2Metadata *meta, const js2val thisValue, js2val *argv, uint32 argc, bool test)
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{
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if (!JS2VAL_IS_OBJECT(thisValue)
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|| (JS2VAL_TO_OBJECT(thisValue)->kind != SimpleInstanceKind)
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|| (checked_cast<SimpleInstance *>(JS2VAL_TO_OBJECT(thisValue))->type != meta->regexpClass))
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meta->reportError(Exception::typeError, "RegExp.exec can only be applied to RegExp objects", meta->engine->errorPos());
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RegExpInstance *thisInst = checked_cast<RegExpInstance *>(JS2VAL_TO_OBJECT(thisValue));
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const String *str = NULL;
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DEFINE_ROOTKEEPER(meta, rk0, str);
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js2val regexpClassVal = OBJECT_TO_JS2VAL(meta->regexpClass);
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js2val result = JS2VAL_NULL;
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if (argc == 0) {
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js2val inputVal;
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if (!meta->classClass->ReadPublic(meta, ®expClassVal, meta->world.identifiers["input"], RunPhase, &inputVal))
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ASSERT(false);
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str = meta->toString(inputVal);
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}
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else
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str = meta->toString(argv[0]);
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uint32 index = 0;
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js2val globalMultiline;
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if (!meta->classClass->ReadPublic(meta, ®expClassVal, meta->world.identifiers["multiline"], RunPhase, &globalMultiline))
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ASSERT(false);
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if (meta->toBoolean(thisInst->getGlobal(meta))) {
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js2val lastIndexVal = thisInst->getLastIndex(meta);
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float64 lastIndex = meta->toFloat64(lastIndexVal);
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if ((lastIndex < 0) || (lastIndex > str->length())) {
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thisInst->setLastIndex(meta, meta->engine->allocNumber(0.0));
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return result;
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}
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index = meta->engine->float64toUInt32(lastIndex);
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}
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REMatchResult *match = REExecute(meta, thisInst->mRegExp, str->begin(), index, toUInt32(str->length()), meta->toBoolean(globalMultiline));
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if (match) {
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if (meta->toBoolean(thisInst->getGlobal(meta))) {
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index = match->endIndex;
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thisInst->setLastIndex(meta, meta->engine->allocNumber((float64)index));
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}
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// construct the result array and set $1.. in RegExp statics
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ArrayInstance *A = NULL;
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DEFINE_ROOTKEEPER(meta, rk, A);
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if (test)
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result = JS2VAL_TRUE;
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else {
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A = new (meta) ArrayInstance(meta, meta->arrayClass->prototype, meta->arrayClass);
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result = OBJECT_TO_JS2VAL(A);
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}
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js2val matchStr = meta->engine->allocString(str->substr((uint32)match->startIndex, (uint32)match->endIndex - match->startIndex));
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DEFINE_ROOTKEEPER(meta, rk1, matchStr);
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js2val inputStr = meta->engine->allocString(str);
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DEFINE_ROOTKEEPER(meta, rk2, inputStr);
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if (!test)
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meta->createDynamicProperty(A, meta->engine->numberToStringAtom((uint32)0), matchStr, ReadWriteAccess, false, true);
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js2val parenStr = JS2VAL_VOID;
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DEFINE_ROOTKEEPER(meta, rk3, parenStr);
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if (match->parenCount == 0) // arrange to set the lastParen to "", not undefined (it's a non-ecma 1.2 thing)
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parenStr = meta->engine->allocString("");
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for (uint32 i = 0; i < match->parenCount; i++) {
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if (match->parens[i].index != -1) {
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parenStr = meta->engine->allocString(str->substr((uint32)(match->parens[i].index), (uint32)(match->parens[i].length)));
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if (!test)
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meta->createDynamicProperty(A, meta->engine->numberToStringAtom(toUInt32(i + 1)), parenStr, ReadWriteAccess, false, true);
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if (i < 9) { // 0-->8 maps to $1 thru $9
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char name[3] = "$0";
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name[1] = '1' + i;
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String staticName(widenCString(name));
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meta->classClass->WritePublic(meta, regexpClassVal, meta->world.identifiers[staticName], true, parenStr);
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}
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}
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else {
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if (!test)
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meta->createDynamicProperty(A, meta->engine->numberToStringAtom(toUInt32(i + 1)), JS2VAL_UNDEFINED, ReadWriteAccess, false, true);
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if (i < 9) { // 0-->8 maps to $1 thru $9
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char name[3] = "$0";
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name[1] = '1' + i;
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String staticName(widenCString(name));
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meta->classClass->WritePublic(meta, regexpClassVal, meta->world.identifiers[staticName], true, JS2VAL_UNDEFINED);
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}
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}
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}
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if (!test) {
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setLength(meta, A, match->parenCount + 1);
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// add 'index' and 'input' properties to the result array
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meta->createDynamicProperty(A, meta->world.identifiers["index"], meta->engine->allocNumber((float64)(match->startIndex)), ReadWriteAccess, false, true);
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meta->createDynamicProperty(A, meta->world.identifiers["input"], inputStr, ReadWriteAccess, false, true);
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}
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// set other RegExp statics
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meta->classClass->WritePublic(meta, regexpClassVal, meta->world.identifiers["input"], true, inputStr);
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meta->classClass->WritePublic(meta, regexpClassVal, meta->world.identifiers["lastMatch"], true, matchStr);
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meta->classClass->WritePublic(meta, regexpClassVal, meta->world.identifiers["lastParen"], true, parenStr);
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js2val leftContextVal = meta->engine->allocString(str->substr(0, (uint32)match->startIndex));
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DEFINE_ROOTKEEPER(meta, rk4, leftContextVal);
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meta->classClass->WritePublic(meta, regexpClassVal, meta->world.identifiers["leftContext"], true, leftContextVal);
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js2val rightContextVal = meta->engine->allocString(str->substr((uint32)match->endIndex, (uint32)str->length() - match->endIndex));
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DEFINE_ROOTKEEPER(meta, rk5, rightContextVal);
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meta->classClass->WritePublic(meta, regexpClassVal, meta->world.identifiers["rightContext"], true, rightContextVal);
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free(match);
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}
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return result;
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}
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js2val RegExp_exec(JS2Metadata *meta, const js2val thisValue, js2val *argv, uint32 argc)
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{
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return RegExp_exec_sub(meta, thisValue, argv, argc, false);
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}
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js2val RegExp_test(JS2Metadata *meta, const js2val thisValue, js2val *argv, uint32 argc)
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{
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js2val result = RegExp_exec_sub(meta, thisValue, argv, argc, true);
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if (result != JS2VAL_TRUE)
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result = JS2VAL_FALSE;
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return result;
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}
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js2val RegExp_Call(JS2Metadata *meta, const js2val thisValue, js2val *argv, uint32 argc)
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{
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if ((argc > 0)
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&& (JS2VAL_IS_OBJECT(argv[0])
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&& (JS2VAL_TO_OBJECT(argv[0])->kind == SimpleInstanceKind)
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&& (checked_cast<SimpleInstance *>(JS2VAL_TO_OBJECT(argv[0]))->type == meta->regexpClass))
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&& ((argc == 1) || JS2VAL_IS_UNDEFINED(argv[1])))
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return argv[0];
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else
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return RegExp_Constructor(meta, thisValue, argv, argc);
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}
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js2val RegExp_compile_sub(JS2Metadata *meta, const js2val thisValue, js2val *argv, uint32 argc, bool flat)
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{
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if (!JS2VAL_IS_OBJECT(thisValue)
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|| (JS2VAL_TO_OBJECT(thisValue)->kind != SimpleInstanceKind)
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|| (checked_cast<SimpleInstance *>(JS2VAL_TO_OBJECT(thisValue))->type != meta->regexpClass))
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meta->reportError(Exception::typeError, "RegExp.compile can only be applied to RegExp objects", meta->engine->errorPos());
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RegExpInstance *thisInst = checked_cast<RegExpInstance *>(JS2VAL_TO_OBJECT(thisValue));
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uint32 flags = 0;
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const String *regexpStr = meta->engine->allocStringPtr("");
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DEFINE_ROOTKEEPER(meta, rk1, regexpStr);
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const String *flagStr = meta->engine->allocStringPtr("");
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DEFINE_ROOTKEEPER(meta, rk2, flagStr);
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if (argc > 0) {
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if (JS2VAL_IS_OBJECT(argv[0]) && !JS2VAL_IS_NULL(argv[0])
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&& (JS2VAL_TO_OBJECT(argv[0])->kind == SimpleInstanceKind)
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&& (checked_cast<SimpleInstance *>(JS2VAL_TO_OBJECT(argv[0]))->type == meta->regexpClass)) {
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if ((argc == 1) || JS2VAL_IS_UNDEFINED(argv[1])) {
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RegExpInstance *otherInst = checked_cast<RegExpInstance *>(JS2VAL_TO_OBJECT(argv[0]));
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js2val src = otherInst->getSource(meta);
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ASSERT(JS2VAL_IS_STRING(src));
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regexpStr = JS2VAL_TO_STRING(src);
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flags = otherInst->mRegExp->flags;
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}
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else
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meta->reportError(Exception::typeError, "Illegal RegExp constructor args", meta->engine->errorPos());
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}
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else
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regexpStr = meta->toString(argv[0]);
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if ((argc > 1) && !JS2VAL_IS_UNDEFINED(argv[1])) {
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flagStr = meta->toString(argv[1]);
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if (!parseFlags(meta, flagStr->begin(), (int32)flagStr->length(), &flags))
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meta->reportError(Exception::syntaxError, "Failed to parse RegExp : '{0}'", meta->engine->errorPos(), *regexpStr + "/" + *flagStr); // XXX error message?
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}
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}
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JS2RegExp *re = RECompile(meta, regexpStr->begin(), (int32)regexpStr->length(), flags, flat);
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if (re) {
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thisInst->mRegExp = re;
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// XXX ECMA spec says these are DONTENUM
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thisInst->setSource(meta, STRING_TO_JS2VAL(regexpStr));
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thisInst->setGlobal(meta, BOOLEAN_TO_JS2VAL((re->flags & JSREG_GLOB) == JSREG_GLOB));
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thisInst->setIgnoreCase(meta, BOOLEAN_TO_JS2VAL((re->flags & JSREG_FOLD) == JSREG_FOLD));
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thisInst->setLastIndex(meta, INT_TO_JS2VAL(0));
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thisInst->setMultiline(meta, BOOLEAN_TO_JS2VAL((re->flags & JSREG_MULTILINE) == JSREG_MULTILINE));
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}
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else
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meta->reportError(Exception::syntaxError, "Failed to parse RegExp : '{0}'", meta->engine->errorPos(), "/" + *regexpStr + "/" + *flagStr); // XXX what about the RE parser error message?
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return thisValue;
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}
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js2val RegExp_compile(JS2Metadata *meta, const js2val thisValue, js2val *argv, uint32 argc)
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{
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return RegExp_compile_sub(meta, thisValue, argv, argc, false);
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}
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js2val RegExp_ConstructorOpt(JS2Metadata *meta, const js2val /* thisValue */, js2val *argv, uint32 argc, bool flat)
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{
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RegExpInstance *thisInst = new (meta) RegExpInstance(meta, meta->regexpClass->prototype, meta->regexpClass);
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DEFINE_ROOTKEEPER(meta, rk, thisInst);
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js2val thatValue = OBJECT_TO_JS2VAL(thisInst);
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return RegExp_compile_sub(meta, thatValue, argv, argc, flat);
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}
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js2val RegExp_Constructor(JS2Metadata *meta, const js2val /* thisValue */, js2val *argv, uint32 argc)
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{
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RegExpInstance *thisInst = new (meta) RegExpInstance(meta, meta->regexpClass->prototype, meta->regexpClass);
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DEFINE_ROOTKEEPER(meta, rk, thisInst);
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js2val thatValue = OBJECT_TO_JS2VAL(thisInst);
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return RegExp_compile_sub(meta, thatValue, argv, argc, false);
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}
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void initRegExpObject(JS2Metadata *meta)
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{
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uint32 i;
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FunctionData prototypeFunctions[] =
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{
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{ "toString", 0, RegExp_toString },
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{ "exec", 0, RegExp_exec },
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{ "test", 0, RegExp_test },
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{ "compile", 0, RegExp_compile },
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{ NULL }
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};
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#define STATIC_VAR_COUNT (15)
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struct {
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char *name;
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char *aliasName;
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JS2Class *type;
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} RegExpStaticVars[STATIC_VAR_COUNT] = {
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{ "input", "$_", meta->stringClass },
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{ "multiline", "$*", meta->booleanClass },
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{ "lastMatch", "$&", meta->stringClass },
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{ "lastParen", "$+", meta->objectClass },
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{ "leftContext", "$`", meta->stringClass },
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{ "rightContext", "$'", meta->stringClass },
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{ "$1", NULL, meta->objectClass },
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{ "$2", NULL, meta->objectClass },
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{ "$3", NULL, meta->objectClass },
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{ "$4", NULL, meta->objectClass },
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{ "$5", NULL, meta->objectClass },
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{ "$6", NULL, meta->objectClass },
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{ "$7", NULL, meta->objectClass },
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{ "$8", NULL, meta->objectClass },
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{ "$9", NULL, meta->objectClass },
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};
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meta->initBuiltinClass(meta->regexpClass, NULL, RegExp_Constructor, RegExp_Call);
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meta->env->addFrame(meta->regexpClass);
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for (i = 0; i < STATIC_VAR_COUNT; i++)
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{
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Variable *v = new Variable();
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v->type = RegExpStaticVars[i].type;
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if (RegExpStaticVars[i].type == meta->stringClass)
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v->value = meta->engine->allocString("");
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else
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if (RegExpStaticVars[i].type == meta->booleanClass)
|
|
v->value = JS2VAL_FALSE;
|
|
meta->defineLocalMember(meta->env, meta->world.identifiers[RegExpStaticVars[i].name], NULL, Attribute::NoOverride, false, ReadWriteAccess, v, 0, false);
|
|
if (RegExpStaticVars[i].aliasName)
|
|
meta->defineLocalMember(meta->env, meta->world.identifiers[RegExpStaticVars[i].aliasName], NULL, Attribute::NoOverride, false, ReadWriteAccess, v, 0, false);
|
|
}
|
|
meta->env->removeTopFrame();
|
|
|
|
NamespaceList publicNamespaceList;
|
|
publicNamespaceList.push_back(meta->publicNamespace);
|
|
|
|
#define INSTANCE_VAR_COUNT (5)
|
|
|
|
struct {
|
|
char *name;
|
|
JS2Class *type;
|
|
} RegExpInstanceVars[INSTANCE_VAR_COUNT] = {
|
|
{ "source", meta->stringClass },
|
|
{ "global", meta->booleanClass },
|
|
{ "multiline", meta->booleanClass },
|
|
{ "ignoreCase", meta->booleanClass },
|
|
{ "lastIndex", meta->numberClass },
|
|
};
|
|
|
|
for (i = 0; i < INSTANCE_VAR_COUNT; i++)
|
|
{
|
|
Multiname *mn = new (meta) Multiname(meta->world.identifiers[RegExpInstanceVars[i].name], &publicNamespaceList);
|
|
InstanceMember *m = new InstanceVariable(mn, RegExpInstanceVars[i].type, false, true, true, meta->regexpClass->slotCount++);
|
|
meta->defineInstanceMember(meta->regexpClass, &meta->cxt, mn->name, *mn->nsList, Attribute::NoOverride, false, m, 0);
|
|
}
|
|
|
|
RegExpInstance *reProto = new (meta) RegExpInstance(meta, OBJECT_TO_JS2VAL(meta->objectClass->prototype), meta->regexpClass);
|
|
DEFINE_ROOTKEEPER(meta, rk, reProto);
|
|
meta->regexpClass->prototype = OBJECT_TO_JS2VAL(reProto);
|
|
meta->initBuiltinClassPrototype(meta->regexpClass, &prototypeFunctions[0]);
|
|
|
|
reProto->setSource(meta, meta->engine->allocString(""));
|
|
reProto->setGlobal(meta, JS2VAL_FALSE);
|
|
reProto->setIgnoreCase(meta, JS2VAL_FALSE);
|
|
reProto->setLastIndex(meta, INT_TO_JS2VAL(0));
|
|
reProto->setMultiline(meta, JS2VAL_FALSE);
|
|
|
|
}
|
|
|
|
}
|
|
}
|