Load global object and builtins from activation.

test/cctest/compiler/test-run-jscalls.cc

 // Copyright 2014 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/v8.h"
 
 #include "test/cctest/compiler/function-tester.h"
 
 using namespace v8::internal;
 using namespace v8::internal::compiler;
@@ skipping 215 matching lines @@
 
 
 TEST(ReceiverPatching) {
   // TODO(turbofan): Note that this test only checks that the function prologue
   // patches an undefined receiver to the global receiver. If this starts to
   // fail once we fix the calling protocol, just remove this test.
   FunctionTester T("(function(a) { return this; })");
   Handle<JSObject> g(T.function->context()->global_object()->global_proxy());
   T.CheckCall(g, T.undefined());
 }
+
+
+THREADED_TEST(ContextLoadedFromActivation) {
+  i::FLAG_turbo_filter = "*";
+  i::FLAG_always_opt = true;
+  i::FLAG_context_specialization = false;
+
+  const char* script =
+      "var x = 42;"
+      "(function() {"
+      "  return function () { return x };"
+      "})()";
+
+  v8::Isolate* isolate = CcTest::isolate();
+  v8::HandleScope outer(isolate);
+  v8::Local<v8::Value> fun;
+  {
+    v8::Local<v8::Context> env = v8::Context::New(isolate);
+    env->Enter();
+    CompileRun("var x = 42;");
+    fun = CompileRun(script);
+    env->Global()->Set(v8_str("foo"), fun);
+    ExpectInt32("foo();", 42);
+    env->Exit();
+  }
+
+  {
+    v8::Local<v8::Context> env = v8::Context::New(isolate);
+    env->Enter();
+    v8::Local<v8::Value> fun2 = CompileRun(script);
+    i::Handle<i::Object> oifun = v8::Utils::OpenHandle(*fun);
+    i::Handle<i::JSFunction> ifun = Handle<JSFunction>::cast(oifun);
+    i::Handle<i::Object> oifun2 = v8::Utils::OpenHandle(*fun2);
+    i::Handle<i::JSFunction> ifun2 = Handle<JSFunction>::cast(oifun2);
+    ifun2->set_code(ifun->code());
+    env->Global()->Set(v8_str("foo"), fun2);
+    CompileRun("var x = 24;");
+    ExpectInt32("foo();", 24);
+    env->Exit();
+  }
+}
+
+
+THREADED_TEST(BuiltinLoadedFromActivation) {
+  i::FLAG_turbo_filter = "*";
+  i::FLAG_always_opt = true;
+  i::FLAG_context_specialization = false;
+
+  const char* script =
+      "var x = 42;"
+      "(function() {"
+      "  return function () { return this; };"
+      "})()";
+
+  v8::Isolate* isolate = CcTest::isolate();
+  v8::HandleScope outer(isolate);
+  v8::Local<v8::Value> fun;
+  {
+    v8::Local<v8::Context> env = v8::Context::New(isolate);
+    env->Enter();
+    CompileRun("var x = 42;");
+    fun = CompileRun(script);
+    env->Global()->Set(v8_str("foo"), fun);
+    ExpectObject("foo()", env->Global());
+    env->Exit();
+  }
+
+  {
+    v8::Local<v8::Context> env = v8::Context::New(isolate);
+    env->Enter();
+    v8::Local<v8::Value> fun2 = CompileRun(script);
+    i::Handle<i::Object> oifun = v8::Utils::OpenHandle(*fun);
+    i::Handle<i::JSFunction> ifun = Handle<JSFunction>::cast(oifun);
+    i::Handle<i::Object> oifun2 = v8::Utils::OpenHandle(*fun2);
+    i::Handle<i::JSFunction> ifun2 = Handle<JSFunction>::cast(oifun2);
+    ifun2->set_code(ifun->code());
+    env->Global()->Set(v8_str("foo"), fun2);
+    CompileRun("var x = 24;");
+    ExpectObject("foo()", env->Global());
+    env->Exit();
+  }
+}