Refactor Parser to make it usable on a background thread.

test/cctest/test-parsing.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1110 matching lines @@
                          source_data[i].outer_prefix,
                          source_data[i].inner_source,
                          source_data[i].outer_suffix);
 
     // Parse program source.
     i::Handle<i::String> source = factory->NewStringFromUtf8(
         i::CStrVector(program.start())).ToHandleChecked();
     CHECK_EQ(source->length(), kProgramSize);
     i::Handle<i::Script> script = factory->NewScript(source);
     i::CompilationInfoWithZone info(script);
-    i::Parser parser(&info);
+    i::Parser::ParseInfo parse_info = {isolate->stack_guard()->real_climit(),
+                                       isolate->heap()->HashSeed(),
+                                       isolate->unicode_cache()};
+    i::Parser parser(&info, &parse_info);
     parser.set_allow_lazy(true);
     parser.set_allow_harmony_scoping(true);
     parser.set_allow_arrow_functions(true);
     info.MarkAsGlobal();
     info.SetStrictMode(source_data[i].strict_mode);
     parser.Parse();
     CHECK(info.function() != NULL);
 
     // Check scope types and positions.
     i::Scope* scope = info.function()->scope();
@@ skipping 114 matching lines @@
     CHECK_EQ(i::PreParser::kPreParseSuccess, result);
   }
 
   bool preparse_error = log.HasError();
 
   // Parse the data
   i::FunctionLiteral* function;
   {
     i::Handle<i::Script> script = factory->NewScript(source);
     i::CompilationInfoWithZone info(script);
-    i::Parser parser(&info);
+    i::Parser::ParseInfo parse_info = {isolate->stack_guard()->real_climit(),
+                                       isolate->heap()->HashSeed(),
+                                       isolate->unicode_cache()};
+    i::Parser parser(&info, &parse_info);
     SetParserFlags(&parser, flags);
     info.MarkAsGlobal();
     parser.Parse();
     function = info.function();
   }
 
   // Check that preparsing fails iff parsing fails.
   if (function == NULL) {
     // Extract exception from the parser.
     CHECK(isolate->has_pending_exception());
@@ skipping 1841 matching lines @@
 
           i::SNPrintF(program, "%s%s%s%s%s%s%s", prefix, outer_comment, outer,
                       midfix, inner_comment, inner, suffix);
           i::Handle<i::String> source =
               factory->InternalizeUtf8String(program.start());
           source->PrintOn(stdout);
           printf("\n");
 
           i::Handle<i::Script> script = factory->NewScript(source);
           i::CompilationInfoWithZone info(script);
-          i::Parser parser(&info);
+          i::Parser::ParseInfo parse_info = {
+              isolate->stack_guard()->real_climit(),
+              isolate->heap()->HashSeed(), isolate->unicode_cache()};
+          i::Parser parser(&info, &parse_info);
           parser.set_allow_harmony_scoping(true);
           CHECK(parser.Parse());
           CHECK(i::Rewriter::Rewrite(&info));
           CHECK(i::Scope::Analyze(&info));
           CHECK(info.function() != NULL);
 
           i::Scope* scope = info.function()->scope();
           CHECK_EQ(scope->inner_scopes()->length(), 1);
           i::Scope* inner_scope = scope->inner_scopes()->at(0);
           const i::AstRawString* var_name =
@@ skipping 234 matching lines @@
   const char* statement_data[] = {
     "super = x",
     "y = super",
     "f(super)",
     NULL};
 
   static const ParserFlag always_flags[] = {kAllowClasses};
   RunParserSyncTest(context_data, statement_data, kError, NULL, 0,
                     always_flags, arraysize(always_flags));
 }