Handle "//# sourceURL" comments in the Parser instead of the JS.

src/bootstrapper.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/code-stubs.h"
 #include "src/extensions/externalize-string-extension.h"
 #include "src/extensions/free-buffer-extension.h"
@@ skipping 1745 matching lines @@
     // Builtin functions for Script.
     Handle<JSFunction> script_fun = InstallFunction(
         builtins, "Script", JS_VALUE_TYPE, JSValue::kSize,
         isolate()->initial_object_prototype(), Builtins::kIllegal);
     Handle<JSObject> prototype =
         factory()->NewJSObject(isolate()->object_function(), TENURED);
     Accessors::FunctionSetPrototype(script_fun, prototype);
     native_context()->set_script_function(*script_fun);
 
     Handle<Map> script_map = Handle<Map>(script_fun->initial_map());
-    Map::EnsureDescriptorSlack(script_map, 13);
+    Map::EnsureDescriptorSlack(script_map, 14);
 
     PropertyAttributes attribs =
         static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY);
 
     Handle<AccessorInfo> script_column =
         Accessors::ScriptColumnOffsetInfo(isolate(), attribs);
     {
       CallbacksDescriptor d(Handle<Name>(Name::cast(script_column->name())),
                            script_column, attribs);
       script_map->AppendDescriptor(&d);
@@ skipping 86 matching lines @@
 
     Handle<AccessorInfo> script_eval_from_function_name =
         Accessors::ScriptEvalFromFunctionNameInfo(isolate(), attribs);
     {
       CallbacksDescriptor d(
           Handle<Name>(Name::cast(script_eval_from_function_name->name())),
           script_eval_from_function_name, attribs);
       script_map->AppendDescriptor(&d);
     }
 
+    Handle<AccessorInfo> script_source_url =
+        Accessors::ScriptSourceUrlInfo(isolate(), attribs);
+    {
+      CallbacksDescriptor d(Handle<Name>(Name::cast(script_source_url->name())),
+                            script_source_url, attribs);
+      script_map->AppendDescriptor(&d);
+    }
+
+    Handle<AccessorInfo> script_source_mapping_url =
+        Accessors::ScriptSourceMappingUrlInfo(isolate(), attribs);
+    {
+      CallbacksDescriptor d(
+          Handle<Name>(Name::cast(script_source_mapping_url->name())),
+          script_source_mapping_url, attribs);
+      script_map->AppendDescriptor(&d);
+    }
+
     // Allocate the empty script.
     Handle<Script> script = factory()->NewScript(factory()->empty_string());
     script->set_type(Smi::FromInt(Script::TYPE_NATIVE));
     heap()->public_set_empty_script(*script);
   }
   {
     // Builtin function for OpaqueReference -- a JSValue-based object,
     // that keeps its field isolated from JavaScript code. It may store
     // objects, that JavaScript code may not access.
     Handle<JSFunction> opaque_reference_fun = InstallFunction(
@@ skipping 849 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   ASSERT(!IsActive());
 }
 
 } }  // namespace v8::internal