add some tests for HandleApiCall builtin

test/cctest/test-api.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 23418 matching lines @@
 int ApiCallOptimizationChecker::count = 0;
 
 
 TEST(FunctionCallOptimization) {
   i::FLAG_allow_natives_syntax = true;
   ApiCallOptimizationChecker checker;
   checker.RunAll();
 }
 
 
-static void EmptyCallback(const v8::FunctionCallbackInfo<v8::Value>& info) {}
+static void Returns42(const v8::FunctionCallbackInfo<v8::Value>& info) {
+  info.GetReturnValue().Set(42);
+}
 
 
 TEST(FunctionCallOptimizationMultipleArgs) {
   i::FLAG_allow_natives_syntax = true;
   LocalContext context;
   v8::Isolate* isolate = context->GetIsolate();
   v8::HandleScope scope(isolate);
   Handle<Object> global = context->Global();
-  Local<v8::Function> function = Function::New(isolate, EmptyCallback);
+  Local<v8::Function> function = Function::New(isolate, Returns42);
   global->Set(v8_str("x"), function);
   CompileRun(
       "function x_wrap() {\n"
       "  for (var i = 0; i < 5; i++) {\n"
       "    x(1,2,3);\n"
       "  }\n"
       "}\n"
       "x_wrap();\n"
       "%OptimizeFunctionOnNextCall(x_wrap);"
       "x_wrap();\n");
@@ skipping 19 matching lines @@
       "  for (var i = 0; i < 5; i++) {\n"
       "    x();\n"
       "  }\n"
       "}\n"
       "x_wrap();\n"
       "%OptimizeFunctionOnNextCall(x_wrap);"
       "x_wrap();\n");
 }
 
 
+TEST(EmptyApiCallback) {
+  LocalContext context;
+  auto isolate = context->GetIsolate();
+  v8::HandleScope scope(isolate);
+  auto global = context->Global();
+  auto function = FunctionTemplate::New(isolate)->GetFunction();
+  global->Set(v8_str("x"), function);
+
+  auto result = CompileRun("x()");
+  CHECK(v8::Utils::OpenHandle(*result)->IsJSGlobalProxy());
+
+  result = CompileRun("x(1,2,3)");
+  CHECK(v8::Utils::OpenHandle(*result)->IsJSGlobalProxy());
+
+  result = CompileRun("7 + x.call(3) + 11");
+  CHECK(result->IsInt32());
+  CHECK_EQ(21, result->Int32Value());
+
+  result = CompileRun("7 + x.call(3, 101, 102, 103, 104) + 11");
+  CHECK(result->IsInt32());
+  CHECK_EQ(21, result->Int32Value());
+
+  result = CompileRun("var y = []; x.call(y)");
+  CHECK(result->IsArray());
+
+  result = CompileRun("x.call(y, 1, 2, 3, 4)");
+  CHECK(result->IsArray());
+}
+
+
+TEST(SimpleSignatureCheck) {
+  LocalContext context;
+  auto isolate = context->GetIsolate();
+  v8::HandleScope scope(isolate);
+  auto global = context->Global();
+  auto sig_obj = FunctionTemplate::New(isolate);
+  auto sig = v8::Signature::New(isolate, sig_obj);
+  auto x = FunctionTemplate::New(isolate, Returns42, Handle<Value>(), sig);
+  global->Set(v8_str("sig_obj"), sig_obj->GetFunction());
+  global->Set(v8_str("x"), x->GetFunction());
+  CompileRun("var s = new sig_obj();");
+  {
+    TryCatch try_catch(isolate);
+    CompileRun("x()");
+    CHECK(try_catch.HasCaught());
+  }
+  {
+    TryCatch try_catch(isolate);
+    CompileRun("x.call(1)");
+    CHECK(try_catch.HasCaught());
+  }
+  {
+    TryCatch try_catch(isolate);
+    auto result = CompileRun("s.x = x; s.x()");
+    CHECK(!try_catch.HasCaught());
+    CHECK_EQ(42, result->Int32Value());
+  }
+  {
+    TryCatch try_catch(isolate);
+    auto result = CompileRun("x.call(s)");
+    CHECK(!try_catch.HasCaught());
+    CHECK_EQ(42, result->Int32Value());
+  }
+}
+
+
+TEST(ChainSignatureCheck) {
+  LocalContext context;
+  auto isolate = context->GetIsolate();
+  v8::HandleScope scope(isolate);
+  auto global = context->Global();
+  auto sig_obj = FunctionTemplate::New(isolate);
+  auto sig = v8::Signature::New(isolate, sig_obj);
+  for (int i = 0; i < 4; ++i) {
+    auto temp = FunctionTemplate::New(isolate);
+    temp->Inherit(sig_obj);
+    sig_obj = temp;
+  }
+  auto x = FunctionTemplate::New(isolate, Returns42, Handle<Value>(), sig);
+  global->Set(v8_str("sig_obj"), sig_obj->GetFunction());
+  global->Set(v8_str("x"), x->GetFunction());
+  CompileRun("var s = new sig_obj();");
+  {
+    TryCatch try_catch(isolate);
+    CompileRun("x()");
+    CHECK(try_catch.HasCaught());
+  }
+  {
+    TryCatch try_catch(isolate);
+    CompileRun("x.call(1)");
+    CHECK(try_catch.HasCaught());
+  }
+  {
+    TryCatch try_catch(isolate);
+    auto result = CompileRun("s.x = x; s.x()");
+    CHECK(!try_catch.HasCaught());
+    CHECK_EQ(42, result->Int32Value());
+  }
+  {
+    TryCatch try_catch(isolate);
+    auto result = CompileRun("x.call(s)");
+    CHECK(!try_catch.HasCaught());
+    CHECK_EQ(42, result->Int32Value());
+  }
+}
+
+
+TEST(PrototypeSignatureCheck) {
+  LocalContext context;
+  auto isolate = context->GetIsolate();
+  v8::HandleScope scope(isolate);
+  auto global = context->Global();
+  auto sig_obj = FunctionTemplate::New(isolate);
+  sig_obj->SetHiddenPrototype(true);
+  auto sig = v8::Signature::New(isolate, sig_obj);
+  auto x = FunctionTemplate::New(isolate, Returns42, Handle<Value>(), sig);
+  global->Set(v8_str("sig_obj"), sig_obj->GetFunction());
+  global->Set(v8_str("x"), x->GetFunction());
+  CompileRun("s = {}; s.__proto__ = new sig_obj();");
+  {
+    TryCatch try_catch(isolate);
+    CompileRun("x()");
+    CHECK(try_catch.HasCaught());
+  }
+  {
+    TryCatch try_catch(isolate);
+    CompileRun("x.call(1)");
+    CHECK(try_catch.HasCaught());
+  }
+  {
+    TryCatch try_catch(isolate);
+    auto result = CompileRun("s.x = x; s.x()");
+    CHECK(!try_catch.HasCaught());
+    CHECK_EQ(42, result->Int32Value());
+  }
+  {
+    TryCatch try_catch(isolate);
+    auto result = CompileRun("x.call(s)");
+    CHECK(!try_catch.HasCaught());
+    CHECK_EQ(42, result->Int32Value());
+  }
+}
+
+
 static const char* last_event_message;
 static int last_event_status;
 void StoringEventLoggerCallback(const char* message, int status) {
     last_event_message = message;
     last_event_status = status;
 }
 
 
 TEST(EventLogging) {
   v8::Isolate* isolate = CcTest::isolate();
@@ skipping 1075 matching lines @@
                    "bar2.js");
 }
 
 
 TEST(StreamingScriptWithSourceMappingURLInTheMiddle) {
   const char* chunks[] = {"function foo() { ret", "urn 13; }\n//#",
                           " sourceMappingURL=bar2.js\n", "foo();", NULL};
   RunStreamingTest(chunks, v8::ScriptCompiler::StreamedSource::UTF8, true, NULL,
                    "bar2.js");
 }