Add support for //# sourceURL similar to deprecated //@ sourceURL one.

BUG=v8:2702
R=yangguo@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/15859010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14883 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

include/v8.h

@@ -1252,7 +1252,8 @@ class V8EXPORT StackFrame {
   /**
    * Returns the name of the resource that contains the script for the
    * function for this StackFrame or sourceURL value if the script name
-   * is undefined and its source ends with //@ sourceURL=... string.
+   * is undefined and its source ends with //# sourceURL=... string or
+   * deprecated //@ sourceURL=... string.
    */
   Local<String> GetScriptNameOrSourceURL() const;
 

src/messages.js

@@ -543,11 +543,11 @@ function ScriptLineCount() {
  * If sourceURL comment is available and script starts at zero returns sourceURL
  * comment contents. Otherwise, script name is returned. See
  * http://fbug.googlecode.com/svn/branches/firebug1.1/docs/ReleaseNotes_1.1.txt
- * for details on using //@ sourceURL comment to identify scritps that don't
- * have name.
+ * and Source Map Revision 3 proposal for details on using //# sourceURL and
+ * deprecated //@ sourceURL comment to identify scripts that don't have name.
  *
- * @return {?string} script name if present, value for //@ sourceURL comment
- * otherwise.
+ * @return {?string} script name if present, value for //# sourceURL or
+ * deprecated //@ sourceURL comment otherwise.
  */
 function ScriptNameOrSourceURL() {
   if (this.line_offset > 0 || this.column_offset > 0) {
@@ -572,7 +572,7 @@ function ScriptNameOrSourceURL() {
   this.cachedNameOrSourceURL = this.name;
   if (sourceUrlPos > 4) {
     var sourceUrlPattern =
-        /\/\/@[\040\t]sourceURL=[\040\t]*([^\s\'\"]*)[\040\t]*$/gm;
+        /\/\/[#@][\040\t]sourceURL=[\040\t]*([^\s\'\"]*)[\040\t]*$/gm;
     // Don't reuse lastMatchInfo here, so we create a new array with room
     // for four captures (array with length one longer than the index
     // of the fourth capture, where the numbering is zero-based).

test/cctest/test-api.cc

@@ -15732,8 +15732,13 @@ TEST(SourceURLInStackTrace) {
     "}\n"
     "foo();\n"
     "}\n"
-    "eval('(' + outer +')()//@ sourceURL=eval_url');";
-  CHECK(CompileRun(source)->IsUndefined());
+    "eval('(' + outer +')()%s');";
+
+  i::ScopedVector<char> code(1024);
+  i::OS::SNPrintF(code, source, "//# sourceURL=eval_url");
+  CHECK(CompileRun(code.start())->IsUndefined());
+  i::OS::SNPrintF(code, source, "//@ sourceURL=eval_url");
+  CHECK(CompileRun(code.start())->IsUndefined());
 }
 
 
@@ -15773,9 +15778,13 @@ TEST(InlineScriptWithSourceURLInStackTrace) {
     "}\n"
     "foo();\n"
     "}\n"
-    "outer()\n"
-    "//@ sourceURL=source_url";
-  CHECK(CompileRunWithOrigin(source, "url", 0, 1)->IsUndefined());
+    "outer()\n%s";
+
+  i::ScopedVector<char> code(1024);
+  i::OS::SNPrintF(code, source, "//# sourceURL=source_url");
+  CHECK(CompileRunWithOrigin(code.start(), "url", 0, 1)->IsUndefined());
+  i::OS::SNPrintF(code, source, "//@ sourceURL=source_url");
+  CHECK(CompileRunWithOrigin(code.start(), "url", 0, 1)->IsUndefined());
 }
 
 
@@ -15815,9 +15824,13 @@ TEST(DynamicWithSourceURLInStackTrace) {
     "}\n"
     "foo();\n"
     "}\n"
-    "outer()\n"
-    "//@ sourceURL=source_url";
-  CHECK(CompileRunWithOrigin(source, "url", 0, 0)->IsUndefined());
+    "outer()\n%s";
+
+  i::ScopedVector<char> code(1024);
+  i::OS::SNPrintF(code, source, "//# sourceURL=source_url");
+  CHECK(CompileRunWithOrigin(code.start(), "url", 0, 0)->IsUndefined());
+  i::OS::SNPrintF(code, source, "//@ sourceURL=source_url");
+  CHECK(CompileRunWithOrigin(code.start(), "url", 0, 0)->IsUndefined());
 }
 
 static void CreateGarbageInOldSpace() {

test/mjsunit/debug-compile-event.js

@@ -80,7 +80,7 @@ function listener(event, exec_state, event_data, data) {
       var msg = eval('(' + json + ')');
       assertTrue('context' in msg.body.script);
 
-      // Check that we pick script name from //@ sourceURL, iff present
+      // Check that we pick script name from //# sourceURL, iff present
       assertEquals(current_source.indexOf('sourceURL') >= 0 ?
                      'myscript.js' : undefined,
                    event_data.script().name());
@@ -103,7 +103,7 @@ compileSource('eval("eval(\'(function(){return a;})\')")');
 source_count += 2;  // Using eval causes additional compilation event.
 compileSource('JSON.parse(\'{"a":1,"b":2}\')');
 // Using JSON.parse does not causes additional compilation events.
-compileSource('x=1; //@ sourceURL=myscript.js');
+compileSource('x=1; //# sourceURL=myscript.js');
 
 // Make sure that the debug event listener was invoked.
 assertFalse(exception, "exception in listener")

test/mjsunit/debug-set-script-source.js

@@ -36,10 +36,10 @@ var exception = null;
 function listener(event, exec_state, event_data, data) {
   if (event == Debug.DebugEvent.BeforeCompile) {
     event_data.script().setSource(event_data.script().source() +
-        " //@ sourceURL=proper_location_" + (++script_number));
+        " //# sourceURL=proper_location_" + (++script_number));
   } else if (event == Debug.DebugEvent.AfterCompile) {
     try {
-      event_data.script().setSource("a=1 //@ sourceURL=wrong_location");
+      event_data.script().setSource("a=1 //# sourceURL=wrong_location");
     } catch(e) {
       exception = e;
     }

test/mjsunit/debug-setbreakpoint.js

@@ -146,7 +146,7 @@ function g() {
 };
 
 eval('function h(){}');
-eval('function sourceUrlFunc() { a = 2; }\n//@ sourceURL=sourceUrlScript');
+eval('function sourceUrlFunc() { a = 2; }\n//# sourceURL=sourceUrlScript');
 
 o = {a:function(){},b:function(){}}
 

test/mjsunit/regress/regress-1853.js

@@ -102,13 +102,13 @@ eval('function test1() {                \n' +
      '  assertFalse(test_break_1);      \n' +
      '  assertTrue(test_break_1);       \n' +
      '}                                 \n' +
-     '//@ sourceURL=testScriptOne');
+     '//# sourceURL=testScriptOne');
 
 eval('function test2() {                \n' +
      '  assertFalse(test_break_2);      \n' +
      '  assertTrue(test_break_2);       \n' +
      '}                                 \n' +
-     '//@ sourceURL=testScriptTwo');
+     '//# sourceURL=testScriptTwo');
 
 test1();
 test2();

test/mjsunit/stack-traces.js

@@ -64,13 +64,13 @@ function testNestedEval() {
 }
 
 function testEvalWithSourceURL() {
-  eval("function Doo() { FAIL; }; Doo();\n//@ sourceURL=res://name");
+  eval("function Doo() { FAIL; }; Doo();\n//# sourceURL=res://name");
 }
 
 function testNestedEvalWithSourceURL() {
   var x = "FAIL";
   var innerEval = 'function Inner() { eval(x); }\n//@ sourceURL=res://inner-eval';
-  eval("function Outer() { eval(innerEval); Inner(); }; Outer();\n//@ sourceURL=res://outer-eval");
+  eval("function Outer() { eval(innerEval); Inner(); }; Outer();\n//# sourceURL=res://outer-eval");
 }
 
 function testValue() {