Hook up compiler dispatcher jobs to lazy parser.

src/compiler-dispatcher/compiler-dispatcher-job.cc

Index: src/compiler-dispatcher/compiler-dispatcher-job.cc
diff --git a/src/compiler-dispatcher/compiler-dispatcher-job.cc b/src/compiler-dispatcher/compiler-dispatcher-job.cc
index 6f44063888ddda6976b36a8fcd7e934392b65051..2da4ad0712d9f573a8176cb1ad98084cd5f1b688 100644
--- a/src/compiler-dispatcher/compiler-dispatcher-job.cc
+++ b/src/compiler-dispatcher/compiler-dispatcher-job.cc
@@ -46,6 +46,8 @@ void CompilerDispatcherJob::PrepareToParseOnMainThread() {
   zone_.reset(new Zone(isolate_->allocator()));
   Handle<SharedFunctionInfo> shared(function_->shared(), isolate_);
   Handle<Script> script(Script::cast(shared->script()), isolate_);
+  DCHECK(script->type() != Script::TYPE_NATIVE);
+
   Handle<String> source(String::cast(script->source()), isolate_);
   if (source->IsExternalTwoByteString()) {
     character_stream_.reset(new ExternalTwoByteStringUtf16CharacterStream(
@@ -66,12 +68,23 @@ void CompilerDispatcherJob::PrepareToParseOnMainThread() {
   parse_info_.reset(new ParseInfo(zone_.get()));
   parse_info_->set_isolate(isolate_);
   parse_info_->set_character_stream(character_stream_.get());
-  parse_info_->set_hash_seed(isolate_->heap()->HashSeed());

[marja, 2016/08/05 09:43:05]

Why don't you need the hash seed any more?

[jochen (gone - plz use gerrit), 2016/08/05 11:20:16]

Oops, didn't want to delete that

+  parse_info_->set_lazy();

[marja, 2016/08/05 09:43:05]

Why? Don't we need to at least check some FLAG_s to find out if lazy parsing is
allowed?

[jochen (gone - plz use gerrit), 2016/08/05 11:20:15]

In the spirit of ParseLazy this flag means that the function was compiled lazily
before, and now should be eagerly compiled :-/

+  parse_info_->set_is_named_expression(shared->is_named_expression());
+  parse_info_->set_calls_eval(shared->scope_info()->CallsEval());
+  parse_info_->set_compiler_hints(shared->compiler_hints());
+  parse_info_->set_start_position(shared->start_position());
+  parse_info_->set_end_position(shared->end_position());
   parse_info_->set_unicode_cache(unicode_cache_.get());
+  parse_info_->set_language_mode(shared->language_mode());
+
   parser_.reset(new Parser(parse_info_.get()));
   parser_->DeserializeScopeChain(
       parse_info_.get(), handle(function_->context(), isolate_),
       Scope::DeserializationMode::kDeserializeOffHeap);
+
+  Handle<String> name(String::cast(shared->name()));
+  parse_info_->set_function_name(
+      parse_info_->ast_value_factory()->GetString(name));
   status_ = CompileJobStatus::kReadyToParse;
 }
 
@@ -118,6 +131,12 @@ void CompilerDispatcherJob::FinalizeParsingOnMainThread() {
     return;
   }
 
+  {
+    HandleScope scope(isolate_);
+    Handle<String> inferred_name(function_->shared()->inferred_name());
+    parse_info_->literal()->set_inferred_name(inferred_name);
+  }

[marja, 2016/08/05 09:43:05]

Why is this good - the HandleScope goes out of Scope but FunctionLiteral stored
the Handle... Why is that working?

[jochen (gone - plz use gerrit), 2016/08/05 11:20:15]

True. I'll just do that when preparing the compilation, because I'll need a
DeferredHandleScope then anyways

+
   InternalizeParsingResult();
 
   status_ = CompileJobStatus::kReadyToCompile;