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

test/cctest/test-api.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 22634 matching lines @@
   Local<Script> script = v8::ScriptCompiler::Compile(
       isolate, &script_source);
   Local<Value> script_name = script->GetUnboundScript()->GetScriptName();
   CHECK(!script_name.IsEmpty());
   CHECK(script_name->IsString());
   String::Utf8Value utf8_name(script_name);
   CHECK_EQ(url, *utf8_name);
   int line_number = script->GetUnboundScript()->GetLineNumber(0);
   CHECK_EQ(13, line_number);
 }
+
+
+void SourceURLHelper(const char* source, const char* expected_source_url,
+                     const char* expected_source_mapping_url) {
+  Local<Script> script = v8_compile(source);
+  if (expected_source_url != NULL) {
+    v8::String::Utf8Value url(script->GetUnboundScript()->GetSourceURL());
+    CHECK_EQ(expected_source_url, *url);
+  } else {
+    CHECK(script->GetUnboundScript()->GetSourceURL()->IsUndefined());
+  }
+  if (expected_source_mapping_url != NULL) {
+    v8::String::Utf8Value url(
+        script->GetUnboundScript()->GetSourceMappingURL());
+    CHECK_EQ(expected_source_mapping_url, *url);
+  } else {
+    CHECK(script->GetUnboundScript()->GetSourceMappingURL()->IsUndefined());
+  }
+}
+
+
+TEST(ScriptSourceURLAndSourceMappingURL) {
+  LocalContext env;
+  v8::Isolate* isolate = env->GetIsolate();
+  v8::HandleScope scope(isolate);
+  SourceURLHelper("function foo() {}\n"
+                  "//# sourceURL=bar1.js\n", "bar1.js", NULL);
+  SourceURLHelper("function foo() {}\n"
+                  "//# sourceMappingURL=bar2.js\n", NULL, "bar2.js");
+
+  // Both sourceURL and sourceMappingURL.
+  SourceURLHelper("function foo() {}\n"
+                  "//# sourceURL=bar3.js\n"
+                  "//# sourceMappingURL=bar4.js\n", "bar3.js", "bar4.js");
+
+  // Two source URLs; the first one is ignored.
+  SourceURLHelper("function foo() {}\n"
+                  "//# sourceURL=ignoreme.js\n"
+                  "//# sourceURL=bar5.js\n", "bar5.js", NULL);
+  SourceURLHelper("function foo() {}\n"
+                  "//# sourceMappingURL=ignoreme.js\n"
+                  "//# sourceMappingURL=bar6.js\n", NULL, "bar6.js");
+
+  // SourceURL or sourceMappingURL in the middle of the script.
+  SourceURLHelper("function foo() {}\n"
+                  "//# sourceURL=bar7.js\n"
+                  "function baz() {}\n", "bar7.js", NULL);
+  SourceURLHelper("function foo() {}\n"
+                  "//# sourceMappingURL=bar8.js\n"
+                  "function baz() {}\n", NULL, "bar8.js");
+
+  // Too much whitespace.
+  SourceURLHelper("function foo() {}\n"
+                  "//#  sourceURL=bar9.js\n"
+                  "//#  sourceMappingURL=bar10.js\n", NULL, NULL);
+  SourceURLHelper("function foo() {}\n"
+                  "//# sourceURL =bar11.js\n"
+                  "//# sourceMappingURL =bar12.js\n", NULL, NULL);
+
+  // Not too much whitespace.
+  SourceURLHelper("function foo() {}\n"
+                  "//# sourceURL=  bar11.js   \n"
+                  "//# sourceMappingURL=  bar12.js \n", "bar11.js", "bar12.js");
+}