Rename js_ResetCodeGenerator to js_FinishCodeGenerator to indicate that
js_InitCodeGenerator must be called after finish before it can be reused.
git-svn-id: svn://10.0.0.236/trunk@10577 18797224-902f-48f8-a5cc-f745e15eee43
- Switch improvements:
- JSOP_CONDSWITCH is a 1 byte nop, not variable length with the same kind
of immediate operand as JSOP_LOOKUPSWITCH (which is useless except for
decompilation). New scheme uses SRC_COMMA notes on each JSOP_CASE opcode,
usually 2 bytes per note, and a typically-1-byte 2nd offset on SRC_SWITCH:
1 + 2 * ncases
vs. the previous JSOP_LOOKUPSWITCH immediate, which consumed:
4 * ncases
bytes after the switch opcode just for decompilation.
- SRC_SWITCH has two offsets, first to end of switch as before, the second
to first case if JSOP_CONDSWITCH, for decompilation.
- Optimize switches with all-constant cases using JSOP_TABLESWITH, or if
that can't be used, JSOP_LOOKUPSWITCH, before falling back on ECMAv2's
JSOP_CONDSWITCH.
- Use cx->gcDisabled when evaluating case exprs at compile time for old,
pre-ECMAv2 switches, to prevent branch-callback-based GC invocations
from ripping apart the unrooted temporary script for each case expr.
- Fixed up stale SRC_SWITCH comments in jsemit.h.
jsemit.c jsemit.h
- TREE_CONTEXT_INIT to match ATOM_LIST_INIT, not English word order.
- Reorganized JSCodeGenerator to sort of match argument order to
js_InitCodeGenerator.
- Got rid of confusing CG_RESET* macros and used memset(cg, 0, sizeof *cg)
and non-zero-default init in js_InitCodeGenerator. js_ResetCodeGenerator
just releases the code and temp arena pools and leaves the cg in a state
where it must be re-initialized (as before, but more obvious).
- In the same spirit, don't do partial "resets" or src and trynotes in their
js_FinishTaking*Notes functions -- those are friends of jsscript.c and are
not general, idempotent functions.
jsapi.c jsapi.h jsarray.c jsatom.c jsatom.h jscntxt.c jsemit.c jsmsg.def
jsnum.c jsobj.c jsopcode.c jsregexp.c jsscan.c jsstr.c jsxdrapi.
- Use PR_snprintf rather than sprintf always, so we don't have to worry
about systems with 64-bit longs that overflow 12-byte buffers and open
Morris-Worm-type security holes.
- Trim extra spaces, fix hanging indentation, and similar anal retention.
- Renamed JSMSG_BAD_PROTO_SORT to JSMSG_BAD_SORT_ARG cuz that's what it
is complaining about.
- SRC_CATCHGUARD still lived in comments, but it's SRC_CATCH in code.
jscntxt.c jscntxt.h jsinterp.c
- Packed nearby JSPackedBools and added a new one: gcDisabled, for use by
jsemit.c's pre-ECMAv2 switch case expr eval.
- Rip out old js_InterpreterHooks stuff from original liveconnect (moja).
- Remove javaData and savedErrors from JSContext. Leaving it to fur or
shaver to remove javaData from jsscript.h.
git-svn-id: svn://10.0.0.236/trunk@9475 18797224-902f-48f8-a5cc-f745e15eee43
Including:
Preliminary work on internationalizing error messages
Preliminary work on exposing runtime errors as catchable exceptions
ECMA-proposed throw and try/catch/finally, with multiple catch clauses
and catchguards
ECMA-proposed in/instanceof operators
IEEE-conformant number to string conversion
Fixes and other good stuff.
git-svn-id: svn://10.0.0.236/trunk@8770 18797224-902f-48f8-a5cc-f745e15eee43
development branch:
- Preliminary exception handling per
ECMA proposal; try, multiple
catchblocks, and finally. Catchblocks
are of the form catch (v) or
catch(v:<guard>), where guard is an
optional boolean expression that is
evaluated to determine whether the
exception is to be caught by that block.
- ECMA-proposed 'in' operator; "'foo' in
o" or "4 in o" asks if o has property
foo or element 4.
- Added a new set of defines in
jsconfig.h for js 1.4
features-in-progress. (in, instanceof,
exception handling.) Default build
version is now 1.4. Fixed a few
conditional features that had become
broken.
- Progress towards porting to FreeBSD
and Alpha; casts of NaN and friends to
int are a little more localized. Not
there yet...
- New config files to compile on more
OSes; various fixes to improve
portability.
git-svn-id: svn://10.0.0.236/trunk@6905 18797224-902f-48f8-a5cc-f745e15eee43
'in' keyword as an operator in the init clause of for loops; this
disambiguates for/in loop parsing. (Previously, there was some
treenode examination magic going on.) Per recent ECMA submission.
git-svn-id: svn://10.0.0.236/trunk@5784 18797224-902f-48f8-a5cc-f745e15eee43
- Revise exception handling runtime info (now called trynotes a la srcnotes)
for more efficient loop control under JSOP_THROW. Avoid all uses of catch
and throw while at it, to make C++ lusers happy.
- Combine JSStackFrame.exception with rval, and rename
JSStackFrame.exceptPending to be ...throwing.
- Optimize JS_TypeOfValue a bit.
- Name, control flow, whitespace, etc. cleanup.
git-svn-id: svn://10.0.0.236/trunk@4772 18797224-902f-48f8-a5cc-f745e15eee43
Fix 123724 hippo: problems declaring var in an eval statement
This ended up being more complex than I initially thought it would be.
See comments in jsparse.c.
git-svn-id: svn://10.0.0.236/trunk@4164 18797224-902f-48f8-a5cc-f745e15eee43
This comment is for checkin of version 1.8: mistakenly gave wrong comment
for that version.
Fix 123724 hippo: problems declaring var in an eval statement
The problem was that Variable() in jsparse.c used the scope from calling
js_FindVariableScope to determine whether or not to convert the operator
to GETVAR, but LookupArgOrVar did not. This caused a mismatched set and
get in the code generated from the eval script due to the presence of the
var in the function frame.
git-svn-id: svn://10.0.0.236/trunk@4031 18797224-902f-48f8-a5cc-f745e15eee43
on activation (120172, mlm).
- Use #ifdef CHECK_RETURN_EXPR to hide CheckFinalReturn as well as its calls.
- 80th column tyranny, typedef symmetry, other cosmetics.
git-svn-id: svn://10.0.0.236/trunk@3992 18797224-902f-48f8-a5cc-f745e15eee43
identifier; it was only printing the first character of the
identifier, because it expected 8-bit chars, and was being called with
a 16-bit representation of the offending keyword.
git-svn-id: svn://10.0.0.236/trunk@880 18797224-902f-48f8-a5cc-f745e15eee43
Initial check-in to mozilla tree: JSRef development is migrating from
JSFUN13_BRANCH of /m/src repository to /m/pub
git-svn-id: svn://10.0.0.236/trunk@582 18797224-902f-48f8-a5cc-f745e15eee43
