From 1379f4efebb7672478906059449dd6b60fc4806c Mon Sep 17 00:00:00 2001
From: "yurys@chromium.org"
 <yurys@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Fri, 30 Aug 2013 14:54:59 +0000
Subject: [PATCH] Add scriptId to StackTrace frames.

BUG=v8:2865
R=verwaest@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/23536007

Patch from Vsevolod Vlasov <vsevik@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16459 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---
 include/v8.h            | 10 ++++++++++
 src/api.cc              | 16 ++++++++++++++++
 src/isolate.cc          | 15 +++++++++++++--
 test/cctest/test-api.cc | 36 ++++++++++++++++++++++++++++++++++++
 4 files changed, 75 insertions(+), 2 deletions(-)

diff --git a/include/v8.h b/include/v8.h
index cfc1de6..c94e510 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -1157,6 +1157,7 @@ class V8_EXPORT Message {
 
   static const int kNoLineNumberInfo = 0;
   static const int kNoColumnInfo = 0;
+  static const int kNoScriptIdInfo = 0;
 };
 
 
@@ -1179,6 +1180,7 @@ class V8_EXPORT StackTrace {
     kIsEval = 1 << 4,
     kIsConstructor = 1 << 5,
     kScriptNameOrSourceURL = 1 << 6,
+    kScriptId = 1 << 7,
     kOverview = kLineNumber | kColumnOffset | kScriptName | kFunctionName,
     kDetailed = kOverview | kIsEval | kIsConstructor | kScriptNameOrSourceURL
   };
@@ -1234,6 +1236,14 @@ class V8_EXPORT StackFrame {
   int GetColumn() const;
 
   /**
+   * Returns the id of the script for the function for this StackFrame.
+   * This method will return Message::kNoScriptIdInfo if it is unable to
+   * retrieve the script id, or if kScriptId was not passed as an option when
+   * capturing the StackTrace.
+   */
+  int GetScriptId() const;
+
+  /**
    * Returns the name of the resource that contains the script for the
    * function for this StackFrame.
    */
diff --git a/src/api.cc b/src/api.cc
index 937e7c4..3e1f9fe 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -2356,6 +2356,22 @@ int StackFrame::GetColumn() const {
 }
 
 
+int StackFrame::GetScriptId() const {
+  i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
+  if (IsDeadCheck(isolate, "v8::StackFrame::GetScriptId()")) {
+    return Message::kNoScriptIdInfo;
+  }
+  ENTER_V8(isolate);
+  i::HandleScope scope(isolate);
+  i::Handle<i::JSObject> self = Utils::OpenHandle(this);
+  i::Handle<i::Object> scriptId = GetProperty(self, "scriptId");
+  if (!scriptId->IsSmi()) {
+    return Message::kNoScriptIdInfo;
+  }
+  return i::Smi::cast(*scriptId)->value();
+}
+
+
 Local<String> StackFrame::GetScriptName() const {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   if (IsDeadCheck(isolate, "v8::StackFrame::GetScriptName()")) {
diff --git a/src/isolate.cc b/src/isolate.cc
index d0b6d46..0e7b6d5 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -734,7 +734,9 @@ Handle<JSArray> Isolate::CaptureCurrentStackTrace(
       factory()->InternalizeOneByteString(STATIC_ASCII_VECTOR("column"));
   Handle<String> line_key =
       factory()->InternalizeOneByteString(STATIC_ASCII_VECTOR("lineNumber"));
-  Handle<String> script_key =
+  Handle<String> script_id_key =
+      factory()->InternalizeOneByteString(STATIC_ASCII_VECTOR("scriptId"));
+  Handle<String> script_name_key =
       factory()->InternalizeOneByteString(STATIC_ASCII_VECTOR("scriptName"));
   Handle<String> script_name_or_source_url_key =
       factory()->InternalizeOneByteString(
@@ -790,11 +792,20 @@ Handle<JSArray> Isolate::CaptureCurrentStackTrace(
                 Handle<Smi>(Smi::FromInt(line_number + 1), this), NONE));
       }
 
+      if (options & StackTrace::kScriptId) {
+        Handle<Smi> script_id(script->id(), this);
+        CHECK_NOT_EMPTY_HANDLE(this,
+                               JSObject::SetLocalPropertyIgnoreAttributes(
+                                   stack_frame, script_id_key, script_id,
+                                   NONE));
+      }
+
       if (options & StackTrace::kScriptName) {
         Handle<Object> script_name(script->name(), this);
         CHECK_NOT_EMPTY_HANDLE(this,
                                JSObject::SetLocalPropertyIgnoreAttributes(
-                                   stack_frame, script_key, script_name, NONE));
+                                   stack_frame, script_name_key, script_name,
+                                   NONE));
       }
 
       if (options & StackTrace::kScriptNameOrSourceURL) {
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index ccf1cbd..91f377a 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -16665,6 +16665,42 @@ TEST(SourceURLInStackTrace) {
 }
 
 
+static int scriptIdInStack[2];
+
+void AnalyzeScriptIdInStack(
+    const v8::FunctionCallbackInfo<v8::Value>& args) {
+  v8::HandleScope scope(args.GetIsolate());
+  v8::Handle<v8::StackTrace> stackTrace =
+      v8::StackTrace::CurrentStackTrace(10, v8::StackTrace::kScriptId);
+  CHECK_EQ(2, stackTrace->GetFrameCount());
+  for (int i = 0; i < 2; i++) {
+    scriptIdInStack[i] = stackTrace->GetFrame(i)->GetScriptId();
+  }
+}
+
+
+TEST(ScriptIdInStackTrace) {
+  v8::HandleScope scope(v8::Isolate::GetCurrent());
+  Local<ObjectTemplate> templ = ObjectTemplate::New();
+  templ->Set(v8_str("AnalyzeScriptIdInStack"),
+             v8::FunctionTemplate::New(AnalyzeScriptIdInStack));
+  LocalContext context(0, templ);
+
+  v8::Handle<v8::String> scriptSource = v8::String::New(
+    "function foo() {\n"
+    "  AnalyzeScriptIdInStack();"
+    "}\n"
+    "foo();\n");
+  v8::ScriptOrigin origin = v8::ScriptOrigin(v8::String::New("test"));
+  v8::Local<v8::Script> script(v8::Script::Compile(scriptSource, &origin));
+  script->Run();
+  for (int i = 0; i < 2; i++) {
+    CHECK(scriptIdInStack[i] != v8::Message::kNoScriptIdInfo);
+    CHECK_EQ(scriptIdInStack[i], script->GetId());
+  }
+}
+
+
 void AnalyzeStackOfInlineScriptWithSourceURL(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   v8::HandleScope scope(args.GetIsolate());
-- 
2.7.4