test-api.cc

Google浏览器V8内核代码

  size_t length() const {
    return length_;
  }
 private:
  uint16_t* data_;
  size_t length_;
};


int TestResource::dispose_count = 0;


class TestAsciiResource: public String::ExternalAsciiStringResource {
 public:
  static int dispose_count;

  explicit TestAsciiResource(char* data)
      : data_(data),
        length_(strlen(data)) { }

  ~TestAsciiResource() {
    i::DeleteArray(data_);
    ++dispose_count;
  }

  const char* data() const {
    return data_;
  }

  size_t length() const {
    return length_;
  }
 private:
  char* data_;
  size_t length_;
};


int TestAsciiResource::dispose_count = 0;


THREADED_TEST(ScriptUsingStringResource) {
  TestResource::dispose_count = 0;
  const char* c_source = "1 + 2 * 3";
  uint16_t* two_byte_source = AsciiToTwoByteString(c_source);
  {
    v8::HandleScope scope;
    LocalContext env;
    TestResource* resource = new TestResource(two_byte_source);
    Local<String> source = String::NewExternal(resource);
    Local<Script> script = Script::Compile(source);
    Local<Value> value = script->Run();
    CHECK(value->IsNumber());
    CHECK_EQ(7, value->Int32Value());
    CHECK(source->IsExternal());
    CHECK_EQ(resource,
             static_cast<TestResource*>(source->GetExternalStringResource()));
    v8::internal::Heap::CollectAllGarbage();
    CHECK_EQ(0, TestResource::dispose_count);
  }
  v8::internal::Heap::CollectAllGarbage();
  CHECK_EQ(1, TestResource::dispose_count);
}


THREADED_TEST(ScriptUsingAsciiStringResource) {
  TestAsciiResource::dispose_count = 0;
  const char* c_source = "1 + 2 * 3";
  {
    v8::HandleScope scope;
    LocalContext env;
    Local<String> source =
        String::NewExternal(new TestAsciiResource(i::StrDup(c_source)));
    Local<Script> script = Script::Compile(source);
    Local<Value> value = script->Run();
    CHECK(value->IsNumber());
    CHECK_EQ(7, value->Int32Value());
    v8::internal::Heap::CollectAllGarbage();
    CHECK_EQ(0, TestAsciiResource::dispose_count);
  }
  v8::internal::Heap::CollectAllGarbage();
  CHECK_EQ(1, TestAsciiResource::dispose_count);
}


THREADED_TEST(GlobalProperties) {
  v8::HandleScope scope;
  LocalContext env;
  v8::Handle<v8::Object> global = env->Global();
  global->Set(v8_str("pi"), v8_num(3.1415926));
  Local<Value> pi = global->Get(v8_str("pi"));
  CHECK_EQ(3.1415926, pi->NumberValue());
}


static v8::Handle<Value> handle_call(const v8::Arguments& args) {
  ApiTestFuzzer::Fuzz();
  return v8_num(102);
}


static v8::Handle<Value> construct_call(const v8::Arguments& args) {
  ApiTestFuzzer::Fuzz();
  args.This()->Set(v8_str("x"), v8_num(1));
  args.This()->Set(v8_str("y"), v8_num(2));
  return args.This();
}

THREADED_TEST(FunctionTemplate) {
  v8::HandleScope scope;
  LocalContext env;
  {
    Local<v8::FunctionTemplate> fun_templ =
        v8::FunctionTemplate::New(handle_call);
    Local<Function> fun = fun_templ->GetFunction();
    env->Global()->Set(v8_str("obj"), fun);
    Local<Script> script = v8_compile("obj()");
    CHECK_EQ(102, script->Run()->Int32Value());
  }
  // Use SetCallHandler to initialize a function template, should work like the
  // previous one.
  {
    Local<v8::FunctionTemplate> fun_templ = v8::FunctionTemplate::New();
    fun_templ->SetCallHandler(handle_call);
    Local<Function> fun = fun_templ->GetFunction();
    env->Global()->Set(v8_str("obj"), fun);
    Local<Script> script = v8_compile("obj()");
    CHECK_EQ(102, script->Run()->Int32Value());
  }
  // Test constructor calls.
  {
    Local<v8::FunctionTemplate> fun_templ =
        v8::FunctionTemplate::New(construct_call);
    fun_templ->SetClassName(v8_str("funky"));
    Local<Function> fun = fun_templ->GetFunction();
    env->Global()->Set(v8_str("obj"), fun);
    Local<Script> script = v8_compile("var s = new obj(); s.x");
    CHECK_EQ(1, script->Run()->Int32Value());

    Local<Value> result = v8_compile("(new obj()).toString()")->Run();
    CHECK_EQ(v8_str("[object funky]"), result);
  }
}


static v8::Handle<Value> handle_property(Local<String> name,
                                         const AccessorInfo&) {
  ApiTestFuzzer::Fuzz();
  return v8_num(900);
}


THREADED_TEST(PropertyHandler) {
  v8::HandleScope scope;
  Local<v8::FunctionTemplate> fun_templ = v8::FunctionTemplate::New();
  fun_templ->InstanceTemplate()->SetAccessor(v8_str("foo"), handle_property);
  LocalContext env;
  Local<Function> fun = fun_templ->GetFunction();
  env->Global()->Set(v8_str("Fun"), fun);
  Local<Script> getter = v8_compile("var obj = new Fun(); obj.foo;");
  CHECK_EQ(900, getter->Run()->Int32Value());
  Local<Script> setter = v8_compile("obj.foo = 901;");
  CHECK_EQ(901, setter->Run()->Int32Value());
}


THREADED_TEST(Number) {
  v8::HandleScope scope;
  LocalContext env;
  double PI = 3.1415926;
  Local<v8::Number> pi_obj = v8::Number::New(PI);
  CHECK_EQ(PI, pi_obj->NumberValue());
}


THREADED_TEST(ToNumber) {
  v8::HandleScope scope;
  LocalContext env;
  Local<String> str = v8_str("3.1415926");
  CHECK_EQ(3.1415926, str->NumberValue());
  v8::Handle<v8::Boolean> t = v8::True();
  CHECK_EQ(1.0, t->NumberValue());
  v8::Handle<v8::Boolean> f = v8::False();
  CHECK_EQ(0.0, f->NumberValue());
}


THREADED_TEST(Date) {
  v8::HandleScope scope;
  LocalContext env;
  double PI = 3.1415926;
  Local<Value> date_obj = v8::Date::New(PI);
  CHECK_EQ(3.0, date_obj->NumberValue());
}


THREADED_TEST(Boolean) {
  v8::HandleScope scope;
  LocalContext env;
  v8::Handle<v8::Boolean> t = v8::True();
  CHECK(t->Value());
  v8::Handle<v8::Boolean> f = v8::False();
  CHECK(!f->Value());
  v8::Handle<v8::Primitive> u = v8::Undefined();
  CHECK(!u->BooleanValue());
  v8::Handle<v8::Primitive> n = v8::Null();
  CHECK(!n->BooleanValue());
  v8::Handle<String> str1 = v8_str("");
  CHECK(!str1->BooleanValue());
  v8::Handle<String> str2 = v8_str("x");
  CHECK(str2->BooleanValue());
  CHECK(!v8::Number::New(0)->BooleanValue());
  CHECK(v8::Number::New(-1)->BooleanValue());
  CHECK(v8::Number::New(1)->BooleanValue());
  CHECK(v8::Number::New(42)->BooleanValue());
  CHECK(!v8_compile("NaN")->Run()->BooleanValue());
}


static v8::Handle<Value> DummyCallHandler(const v8::Arguments& args) {
  ApiTestFuzzer::Fuzz();
  return v8_num(13.4);
}


static v8::Handle<Value> GetM(Local<String> name, const AccessorInfo&) {
  ApiTestFuzzer::Fuzz();
  return v8_num(876);
}


THREADED_TEST(GlobalPrototype) {
  v8::HandleScope scope;
  v8::Handle<v8::FunctionTemplate> func_templ = v8::FunctionTemplate::New();
  func_templ->PrototypeTemplate()->Set(
      "dummy",
      v8::FunctionTemplate::New(DummyCallHandler));
  v8::Handle<ObjectTemplate> templ = func_templ->InstanceTemplate();
  templ->Set("x", v8_num(200));
  templ->SetAccessor(v8_str("m"), GetM);
  LocalContext env(0, templ);
  v8::Handle<v8::Object> obj = env->Global();
  v8::Handle<Script> script = v8_compile("dummy()");
  v8::Handle<Value> result = script->Run();
  CHECK_EQ(13.4, result->NumberValue());
  CHECK_EQ(200, v8_compile("x")->Run()->Int32Value());
  CHECK_EQ(876, v8_compile("m")->Run()->Int32Value());
}


static v8::Handle<Value> GetIntValue(Local<String> property,
                                     const AccessorInfo& info) {
  ApiTestFuzzer::Fuzz();
  int* value =
      static_cast<int*>(v8::Handle<v8::External>::Cast(info.Data())->Value());
  return v8_num(*value);
}

static void SetIntValue(Local<String> property,
                        Local<Value> value,
                        const AccessorInfo& info) {
  int* field =
      static_cast<int*>(v8::Handle<v8::External>::Cast(info.Data())->Value());
  *field = value->Int32Value();
}

int foo, bar, baz;

THREADED_TEST(GlobalVariableAccess) {
  foo = 0;
  bar = -4;
  baz = 10;
  v8::HandleScope scope;
  v8::Handle<v8::FunctionTemplate> templ = v8::FunctionTemplate::New();
  templ->InstanceTemplate()->SetAccessor(v8_str("foo"),
                                         GetIntValue,
                                         SetIntValue,
                                         v8::External::New(&foo));
  templ->InstanceTemplate()->SetAccessor(v8_str("bar"),
                                         GetIntValue,
                                         SetIntValue,
                                         v8::External::New(&bar));
  templ->InstanceTemplate()->SetAccessor(v8_str("baz"),
                                         GetIntValue,
                                         SetIntValue,
                                         v8::External::New(&baz));
  LocalContext env(0, templ->InstanceTemplate());
  v8_compile("foo = (++bar) + baz")->Run();
  CHECK_EQ(bar, -3);
  CHECK_EQ(foo, 7);
}


THREADED_TEST(ObjectTemplate) {
  v8::HandleScope scope;
  Local<ObjectTemplate> templ1 = ObjectTemplate::New();
  templ1->Set("x", v8_num(10));
  templ1->Set("y", v8_num(13));
  LocalContext env;
  Local<v8::Object> instance1 = templ1->NewInstance();
  env->Global()->Set(v8_str("p"), instance1);
  CHECK(v8_compile("(p.x == 10)")->Run()->BooleanValue());
  CHECK(v8_compile("(p.y == 13)")->Run()->BooleanValue());
  Local<v8::FunctionTemplate> fun = v8::FunctionTemplate::New();
  fun->PrototypeTemplate()->Set("nirk", v8_num(123));
  Local<ObjectTemplate> templ2 = fun->InstanceTemplate();
  templ2->Set("a", v8_num(12));
  templ2->Set("b", templ1);
  Local<v8::Object> instance2 = templ2->NewInstance();
  env->Global()->Set(v8_str("q"), instance2);
  CHECK(v8_compile("(q.nirk == 123)")->Run()->BooleanValue());
  CHECK(v8_compile("(q.a == 12)")->Run()->BooleanValue());
  CHECK(v8_compile("(q.b.x == 10)")->Run()->BooleanValue());
  CHECK(v8_compile("(q.b.y == 13)")->Run()->BooleanValue());
}


static v8::Handle<Value> GetFlabby(const v8::Arguments& args) {
  ApiTestFuzzer::Fuzz();
  return v8_num(17.2);
}


static v8::Handle<Value> GetKnurd(Local<String> property, const AccessorInfo&) {
  ApiTestFuzzer::Fuzz();
  return v8_num(15.2);
}


THREADED_TEST(DescriptorInheritance) {
  v8::HandleScope scope;
  v8::Handle<v8::FunctionTemplate> super = v8::FunctionTemplate::New();
  super->PrototypeTemplate()->Set("flabby",
                                  v8::FunctionTemplate::New(GetFlabby));
  super->PrototypeTemplate()->Set("PI", v8_num(3.14));

  super->InstanceTemplate()->SetAccessor(v8_str("knurd"), GetKnurd);

  v8::Handle<v8::FunctionTemplate> base1 = v8::FunctionTemplate::New();
  base1->Inherit(super);
  base1->PrototypeTemplate()->Set("v1", v8_num(20.1));

  v8::Handle<v8::FunctionTemplate> base2 = v8::FunctionTemplate::New();
  base2->Inherit(super);
  base2->PrototypeTemplate()->Set("v2", v8_num(10.1));

  LocalContext env;

  env->Global()->Set(v8_str("s"), super->GetFunction());
  env->Global()->Set(v8_str("base1"), base1->GetFunction());
  env->Global()->Set(v8_str("base2"), base2->GetFunction());

  // Checks right __proto__ chain.
  CHECK(CompileRun("base1.prototype.__proto__ == s.prototype")->BooleanValue());
  CHECK(CompileRun("base2.prototype.__proto__ == s.prototype")->BooleanValue());

  CHECK(v8_compile("s.prototype.PI == 3.14")->Run()->BooleanValue());

  // Instance accessor should not be visible on function object or its prototype
  CHECK(CompileRun("s.knurd == undefined")->BooleanValue());
  CHECK(CompileRun("s.prototype.knurd == undefined")->BooleanValue());
  CHECK(CompileRun("base1.prototype.knurd == undefined")->BooleanValue());

  env->Global()->Set(v8_str("obj"),
                     base1->GetFunction()->NewInstance());
  CHECK_EQ(17.2, v8_compile("obj.flabby()")->Run()->NumberValue());
  CHECK(v8_compile("'flabby' in obj")->Run()->BooleanValue());
  CHECK_EQ(15.2, v8_compile("obj.knurd")->Run()->NumberValue());
  CHECK(v8_compile("'knurd' in obj")->Run()->BooleanValue());
  CHECK_EQ(20.1, v8_compile("obj.v1")->Run()->NumberValue());

  env->Global()->Set(v8_str("obj2"),
                     base2->GetFunction()->NewInstance());
  CHECK_EQ(17.2, v8_compile("obj2.flabby()")->Run()->NumberValue());
  CHECK(v8_compile("'flabby' in obj2")->Run()->BooleanValue());
  CHECK_EQ(15.2, v8_compile("obj2.knurd")->Run()->NumberValue());
  CHECK(v8_compile("'knurd' in obj2")->Run()->BooleanValue());
  CHECK_EQ(10.1, v8_compile("obj2.v2")->Run()->NumberValue());

  // base1 and base2 cannot cross reference to each's prototype
  CHECK(v8_compile("obj.v2")->Run()->IsUndefined());
  CHECK(v8_compile("obj2.v1")->Run()->IsUndefined());
}


int echo_named_call_count;


static v8::Handle<Value> EchoNamedProperty(Local<String> name,
                                           const AccessorInfo& info) {
  ApiTestFuzzer::Fuzz();
  CHECK_EQ(v8_str("data"), info.Data());
  echo_named_call_count++;
  return name;
}


THREADED_TEST(NamedPropertyHandlerGetter) {
  echo_named_call_count = 0;
  v8::HandleScope scope;
  v8::Handle<v8::FunctionTemplate> templ = v8::FunctionTemplate::New();
  templ->InstanceTemplate()->SetNamedPropertyHandler(EchoNamedProperty,
                                                     0, 0, 0, 0,
                                                     v8_str("data"));