Revision: 23105
Author: [email protected]
Date: Wed Aug 13 13:06:30 2014 UTC
Log: Expose Value::IsArgumentsObject in V8 API.
[email protected], [email protected], yangguo
Review URL: https://codereview.chromium.org/460333002
http://code.google.com/p/v8/source/detail?r=23105
Modified:
/branches/bleeding_edge/include/v8.h
/branches/bleeding_edge/src/api.cc
/branches/bleeding_edge/test/cctest/test-api.cc
=======================================
--- /branches/bleeding_edge/include/v8.h Thu Aug 7 08:55:49 2014 UTC
+++ /branches/bleeding_edge/include/v8.h Wed Aug 13 13:06:30 2014 UTC
@@ -1423,6 +1423,11 @@
*/
bool IsDate() const;
+ /**
+ * Returns true if this value is an Arguments object.
+ */
+ bool IsArgumentsObject() const;
+
/**
* Returns true if this value is a Boolean object.
*/
=======================================
--- /branches/bleeding_edge/src/api.cc Tue Aug 12 13:33:35 2014 UTC
+++ /branches/bleeding_edge/src/api.cc Wed Aug 13 13:06:30 2014 UTC
@@ -2381,6 +2381,14 @@
bool Value::IsNumber() const {
return Utils::OpenHandle(this)->IsNumber();
}
+
+
+bool Value::IsArgumentsObject() const {
+ i::Handle<i::Object> obj = Utils::OpenHandle(this);
+ if (!obj->IsHeapObject()) return false;
+ i::Isolate* isolate = i::HeapObject::cast(*obj)->GetIsolate();
+ return obj->HasSpecificClassOf(isolate->heap()->Arguments_string());
+}
bool Value::IsBoolean() const {
=======================================
--- /branches/bleeding_edge/test/cctest/test-api.cc Tue Aug 12 13:33:35
2014 UTC
+++ /branches/bleeding_edge/test/cctest/test-api.cc Wed Aug 13 13:06:30
2014 UTC
@@ -1539,6 +1539,19 @@
v8::Handle<Value> not_object = CompileRun("42");
CHECK(!not_object->IsNativeError());
}
+
+
+THREADED_TEST(ArgumentsObject) {
+ LocalContext env;
+ v8::HandleScope scope(env->GetIsolate());
+ v8::Handle<Value> arguments_object =
+ CompileRun("var out = 0; (function(){ out = arguments; })(1,2,3);
out;");
+ CHECK(arguments_object->IsArgumentsObject());
+ v8::Handle<Value> array = CompileRun("[1,2,3]");
+ CHECK(!array->IsArgumentsObject());
+ v8::Handle<Value> object = CompileRun("{a:42}");
+ CHECK(!object->IsArgumentsObject());
+}
THREADED_TEST(StringObject) {
--
--
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