ES6: Desugaring of instanceof to support @@hasInstance

src/runtime/runtime-function.cc

Index: src/runtime/runtime-function.cc
diff --git a/src/runtime/runtime-function.cc b/src/runtime/runtime-function.cc
index e29b3c8c5f02f437934e42556e3dfa83029570ae..d05a3a17b8dcfb067cc4515dde133c94672633b5 100644
--- a/src/runtime/runtime-function.cc
+++ b/src/runtime/runtime-function.cc
@@ -236,6 +236,13 @@ RUNTIME_FUNCTION(Runtime_IsConstructor) {
   return isolate->heap()->ToBoolean(object->IsConstructor());
 }
 
+RUNTIME_FUNCTION(Runtime_IsCallable) {
+  SealHandleScope shs(isolate);
+  DCHECK_EQ(1, args.length());
+  CONVERT_ARG_CHECKED(Object, object, 0);
+  // PrintF("object %p is callable %d\n", (void*) object, object->IsCallable());

[Benedikt Meurer, 2016/02/18 05:09:44]

Nit: Remove this PrintF

[mvstanton, 2016/02/18 21:19:15]

Doh...actually removed the whole function as Dan pointed out a nice way to check
Callable with typeof.

+  return isolate->heap()->ToBoolean(object->IsCallable());
+}
 
 RUNTIME_FUNCTION(Runtime_SetForceInlineFlag) {
   SealHandleScope shs(isolate);