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Bug 933798 - Don't unnecessarily deoptimize name accesses in try blocks in lazily parsed functions. r=bhackett

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Jan de Mooij 2013-11-04 11:40:24 +01:00
parent 31b7d51b9f
commit 585f6f8712
1 changed files with 0 additions and 11 deletions
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11
js/src/frontend/BytecodeEmitter.cpp
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@ -1140,17 +1140,6 @@ TryConvertFreeName(BytecodeEmitter *bce, ParseNode *pn)
* resolving upvar accesses within the inner function.
*/
if (bce->emitterMode == BytecodeEmitter::LazyFunction) {
// The only statements within a lazy function which can push lexical
// scopes are try/catch blocks. Use generic ops in this case.
for (StmtInfoBCE *stmt = bce->topStmt; stmt; stmt = stmt->down) {
switch (stmt->type) {
case STMT_TRY:
case STMT_FINALLY:
return true;
default:;
}
}
size_t hops = 0;
FunctionBox *funbox = bce->sc->asFunctionBox();
if (funbox->hasExtensibleScope())