AuroraMiddleware/v8
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Fix temp_zone scoping when parsing inner function literals

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BUG=v8:4392
LOG=Y

Review URL: https://codereview.chromium.org/1354523003

Cr-Commit-Position: refs/heads/master@{#30792}
This commit is contained in:
conradw 2015-09-17 02:38:22 -07:00 committed by Commit bot
parent 359645f481
commit b185ed4061
2 changed files with 5 additions and 5 deletions
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4
src/ast.h
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@ -3676,9 +3676,9 @@ class AstNodeFactory final BASE_EMBEDDED {
// Handles use of temporary zones when parsing inner function bodies.
class BodyScope {
public:
BodyScope(AstNodeFactory* factory, Zone* temp_zone, bool can_use_temp_zone)
BodyScope(AstNodeFactory* factory, Zone* temp_zone, bool use_temp_zone)
: factory_(factory), prev_zone_(factory->local_zone_) {
if (can_use_temp_zone) {
if (use_temp_zone) {
factory->local_zone_ = temp_zone;
}
}

6
src/parser.cc
View File

@ -4224,7 +4224,7 @@ FunctionLiteral* Parser::ParseFunctionLiteral(
// FunctionExpression; even without enclosing parentheses it might be
// immediately invoked.
// - The function literal shouldn't be hinted to eagerly compile.
bool can_use_temp_zone =
bool use_temp_zone =
FLAG_lazy && !allow_natives() && extension_ == NULL && allow_lazy() &&
function_type == FunctionLiteral::DECLARATION &&
eager_compile_hint != FunctionLiteral::kShouldEagerCompile;
@ -4237,14 +4237,14 @@ FunctionLiteral* Parser::ParseFunctionLiteral(
// parser-persistent zone (see parser_zone_ in AstNodeFactory).
{
Zone temp_zone;
AstNodeFactory::BodyScope(factory(), &temp_zone, can_use_temp_zone);
AstNodeFactory::BodyScope inner(factory(), &temp_zone, use_temp_zone);
body = ParseEagerFunctionBody(function_name, pos, formals, kind,
function_type, CHECK_OK);
}
materialized_literal_count = function_state.materialized_literal_count();
expected_property_count = function_state.expected_property_count();
if (can_use_temp_zone) {
if (use_temp_zone) {
// If the preconditions are correct the function body should never be
// accessed, but do this anyway for better behaviour if they're wrong.
body = NULL;