FunctionLiteral* Parser::ParseProgram() {
ZoneScope zone_scope(zone(), DONT_DELETE_ON_EXIT);
-
HistogramTimerScope timer(isolate()->counters()->parse());
Handle<String> source(String::cast(script_->source()));
isolate()->counters()->total_parse_size()->Increment(source->length());
+ int64_t start = FLAG_trace_parse ? OS::Ticks() : 0;
fni_ = new(zone()) FuncNameInferrer(isolate(), zone());
// Initialize parser state.
source->TryFlatten();
+ FunctionLiteral* result;
if (source->IsExternalTwoByteString()) {
// Notice that the stream is destroyed at the end of the branch block.
// The last line of the blocks can't be moved outside, even though they're
ExternalTwoByteStringUtf16CharacterStream stream(
Handle<ExternalTwoByteString>::cast(source), 0, source->length());
scanner_.Initialize(&stream);
- return DoParseProgram(info(), source, &zone_scope);
+ result = DoParseProgram(info(), source, &zone_scope);
} else {
GenericStringUtf16CharacterStream stream(source, 0, source->length());
scanner_.Initialize(&stream);
- return DoParseProgram(info(), source, &zone_scope);
+ result = DoParseProgram(info(), source, &zone_scope);
}
+
+ if (FLAG_trace_parse && result != NULL) {
+ double ms = static_cast<double>(OS::Ticks() - start) / 1000;
+ if (info()->is_eval()) {
+ PrintF("[parsing eval");
+ } else if (info()->script()->name()->IsString()) {
+ String* name = String::cast(info()->script()->name());
+ SmartArrayPointer<char> name_chars = name->ToCString();
+ PrintF("[parsing script: %s", *name_chars);
+ } else {
+ PrintF("[parsing script");
+ }
+ PrintF(" - took %0.3f ms]\n", ms);
+ }
+ return result;
}
HistogramTimerScope timer(isolate()->counters()->parse_lazy());
Handle<String> source(String::cast(script_->source()));
isolate()->counters()->total_parse_size()->Increment(source->length());
-
+ int64_t start = FLAG_trace_parse ? OS::Ticks() : 0;
Handle<SharedFunctionInfo> shared_info = info()->shared_info();
+
// Initialize parser state.
source->TryFlatten();
+ FunctionLiteral* result;
if (source->IsExternalTwoByteString()) {
ExternalTwoByteStringUtf16CharacterStream stream(
Handle<ExternalTwoByteString>::cast(source),
shared_info->start_position(),
shared_info->end_position());
- FunctionLiteral* result = ParseLazy(&stream, &zone_scope);
- return result;
+ result = ParseLazy(&stream, &zone_scope);
} else {
GenericStringUtf16CharacterStream stream(source,
shared_info->start_position(),
shared_info->end_position());
- FunctionLiteral* result = ParseLazy(&stream, &zone_scope);
- return result;
+ result = ParseLazy(&stream, &zone_scope);
}
+
+ if (FLAG_trace_parse && result != NULL) {
+ double ms = static_cast<double>(OS::Ticks() - start) / 1000;
+ SmartArrayPointer<char> name_chars = result->name()->ToCString();
+ PrintF("[parsing function: %s - took %0.3f ms]\n", *name_chars, ms);
+ }
+ return result;
}