Remove stack overflow boilerplate

src/messages.cc

 // Copyright 2011 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/messages.h"
 
 #include "src/api.h"
+#include "src/bootstrapper.h"
 #include "src/execution.h"
 #include "src/isolate-inl.h"
 #include "src/keys.h"
 #include "src/string-builder.h"
 #include "src/wasm/wasm-module.h"
 
 namespace v8 {
 namespace internal {
 
 MessageLocation::MessageLocation(Handle<Script> script, int start_pos,
@@ skipping 422 matching lines @@
         builder.AppendString(arg);
       }
     } else {
       builder.AppendCharacter(*c);
     }
   }
 
   return builder.Finish();
 }
 
+Object* ConstructError(Isolate* isolate, Handle<JSFunction> target,

[Yang, 2016/07/19 15:06:47]

Let's return a MaybeHandle<Object> here.

[jgruber, 2016/07/20 14:48:39]

Done.

+                       Handle<Object> new_target, Handle<Object> message) {
+  // 1. If NewTarget is undefined, let newTarget be the active function object,
+  // else let newTarget be NewTarget.
+
+  Handle<JSReceiver> new_target_recv =
+      new_target->IsJSReceiver() ? Handle<JSReceiver>::cast(new_target)
+                                 : Handle<JSReceiver>::cast(target);
+
+  // 2. Let O be ? OrdinaryCreateFromConstructor(newTarget, "%ErrorPrototype%",
+  //    « [[ErrorData]] »).
+  Handle<JSObject> err;
+  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, err,
+                                     JSObject::New(target, new_target_recv));
+
+  // 3. If message is not undefined, then
+  //  a. Let msg be ? ToString(message).
+  //  b. Let msgDesc be the PropertyDescriptor{[[Value]]: msg, [[Writable]]:
+  //     true, [[Enumerable]]: false, [[Configurable]]: true}.
+  //  c. Perform ! DefinePropertyOrThrow(O, "message", msgDesc).
+  // 4. Return O.
+
+  if (!message->IsUndefined(isolate)) {
+    Handle<String> msg_string;
+    ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, msg_string,
+                                       Object::ToString(isolate, message));
+    RETURN_FAILURE_ON_EXCEPTION(
+        isolate,
+        JSObject::SetOwnPropertyIgnoreAttributes(
+            err, isolate->factory()->message_string(), msg_string, DONT_ENUM));
+  }
+
+  // Capture the stack trace unless we're setting up.
+  if (!isolate->bootstrapper()->IsActive()) {
+    // Optionally capture a more detailed stack trace for the message.
+    RETURN_FAILURE_ON_EXCEPTION(isolate,
+                                isolate->CaptureAndSetDetailedStackTrace(err));
+    // Capture a simple stack trace for the stack property.
+    RETURN_FAILURE_ON_EXCEPTION(isolate,
+                                isolate->CaptureAndSetSimpleStackTrace(err));
+  }
+
+  return *err;
+}
 
 }  // namespace internal
 }  // namespace v8