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bug 453492 - hiding JSCodeSpec.(nuses|ndefs) behind inlines to properly deal with variable stack bytecodes. r=brendan

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This commit is contained in:
Igor Bukanov
2009-03-30 16:19:50 +02:00
parent 60aa8bb223
commit 7f43d1e11b
3 changed files with 78 additions and 49 deletions
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31
js/src/jsopcode.h
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@@ -343,7 +343,36 @@ js_GetVariableBytecodeLength(jsbytecode *pc);
* or JSOP_NEWARRAY (for such ops, JSCodeSpec.nuses is -1).
*/
extern uintN
js_GetVariableStackUseLength(JSOp op, jsbytecode *pc);
js_GetVariableStackUses(JSOp op, jsbytecode *pc);
/*
* Find the number of stack slots defined by JSOP_ENTERBLOCK (for this op,
* JSCodeSpec.ndefs is -1).
*/
extern uintN
js_GetEnterBlockStackDefs(JSContext *cx, JSScript *script, jsbytecode *pc);
static JS_INLINE uintN
js_GetStackUses(const JSCodeSpec *cs, JSOp op, jsbytecode *pc)
{
JS_ASSERT(cs == &js_CodeSpec[op]);
if (cs->nuses >= 0)
return cs->nuses;
return js_GetVariableStackUses(op, pc);
}
static JS_INLINE uintN
js_GetStackDefs(JSContext *cx, const JSCodeSpec *cs, JSOp op, JSScript *script,
jsbytecode *pc)
{
JS_ASSERT(cs == &js_CodeSpec[op]);
if (cs->ndefs >= 0)
return cs->ndefs;
/* Only JSOP_ENTERBLOCK has a variable number of stack defs. */
JS_ASSERT(op == JSOP_ENTERBLOCK);
return js_GetEnterBlockStackDefs(cx, script, pc);
}
#ifdef DEBUG
/*