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Bug 406769: simple code now causes a slow script warning dialog to appear when it didn't before (fix bad regression in the global variable optimizer), patch by Igor Bukanov <igor@mir2.org>, r=brendan, a=schrep for M10 landing

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gavin@gavinsharp.com 2007-12-09 14:37:27 -08:00
parent f1fcf37818
commit 5308ee78ac
1 changed files with 3 additions and 1 deletions
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4
js/src/jsemit.c
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@ -1853,6 +1853,7 @@ BindNameToSlot(JSContext *cx, JSTreeContext *tc, JSParseNode *pn,
JSLocalKind localKind;
uintN index;
JSAtomListElement *ale;
JSBool constOp;
JS_ASSERT(pn->pn_type == TOK_NAME);
if (pn->pn_slot >= 0 || pn->pn_op == JSOP_ARGUMENTS)
@ -1956,6 +1957,7 @@ BindNameToSlot(JSContext *cx, JSTreeContext *tc, JSParseNode *pn,
/* Use precedes declaration, or name is never declared. */
return JS_TRUE;
}
constOp = (ALE_JSOP(ale) == JSOP_DEFCONST);
/* Index atom so we can map fast global number to name. */
JS_ASSERT(tc->flags & TCF_COMPILING);
@ -1984,7 +1986,7 @@ BindNameToSlot(JSContext *cx, JSTreeContext *tc, JSParseNode *pn,
case JSOP_DELNAME: /* NB: no change */ break;
default: JS_ASSERT(0);
}
pn->pn_const = (ALE_JSOP(ale) == JSOP_DEFCONST);
pn->pn_const = constOp;
if (op != pn->pn_op) {
pn->pn_op = op;
pn->pn_slot = slot;