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v8/test/cctest/test-accessors.cc
Clemens Backes 00a341994f [cctest] Use v8_flags for accessing flag values 
Avoid the deprecated FLAG_* syntax, access flag values via the
{v8_flags} struct instead.

R=mliedtke@chromium.org

Bug: v8:12887
Change-Id: I417eee6311fadef9b60043cfc9a42926859c7ab9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899304
Reviewed-by: Matthias Liedtke <mliedtke@chromium.org>
Commit-Queue: Matthias Liedtke <mliedtke@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83247}
2022-09-16 08:22:03 +00:00

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// 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
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <stdlib.h>
#include "include/v8-function.h"
#include "src/api/api-inl.h"
#include "src/execution/frames-inl.h"
#include "src/strings/string-stream.h"
#include "test/cctest/cctest.h"
using ::v8::ObjectTemplate;
using ::v8::Value;
using ::v8::Context;
using ::v8::Local;
using ::v8::Name;
using ::v8::String;
using ::v8::Script;
using ::v8::Function;
using ::v8::Extension;
static void handle_property(Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
ApiTestFuzzer::Fuzz();
info.GetReturnValue().Set(v8_num(900));
}
static void handle_property_2(Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
ApiTestFuzzer::Fuzz();
info.GetReturnValue().Set(v8_num(902));
}
static void handle_property(const v8::FunctionCallbackInfo<v8::Value>& info) {
ApiTestFuzzer::Fuzz();
CHECK_EQ(0, info.Length());
info.GetReturnValue().Set(v8_num(907));
}
THREADED_TEST(PropertyHandler) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
Local<v8::FunctionTemplate> fun_templ = v8::FunctionTemplate::New(isolate);
fun_templ->InstanceTemplate()->SetAccessor(v8_str("foo"), handle_property);
Local<v8::FunctionTemplate> getter_templ =
v8::FunctionTemplate::New(isolate, handle_property);
getter_templ->SetLength(0);
fun_templ->
InstanceTemplate()->SetAccessorProperty(v8_str("bar"), getter_templ);
fun_templ->InstanceTemplate()->
SetNativeDataProperty(v8_str("instance_foo"), handle_property);
fun_templ->SetNativeDataProperty(v8_str("object_foo"), handle_property_2);
Local<Function> fun = fun_templ->GetFunction(env.local()).ToLocalChecked();
CHECK(env->Global()->Set(env.local(), v8_str("Fun"), fun).FromJust());
Local<Script> getter;
Local<Script> setter;
// check function instance accessors
getter = v8_compile("var obj = new Fun(); obj.instance_foo;");
for (int i = 0; i < 4; i++) {
CHECK_EQ(900, getter->Run(env.local())
.ToLocalChecked()
->Int32Value(env.local())
.FromJust());
}
setter = v8_compile("obj.instance_foo = 901;");
for (int i = 0; i < 4; i++) {
CHECK_EQ(901, setter->Run(env.local())
.ToLocalChecked()
->Int32Value(env.local())
.FromJust());
}
getter = v8_compile("obj.bar;");
for (int i = 0; i < 4; i++) {
CHECK_EQ(907, getter->Run(env.local())
.ToLocalChecked()
->Int32Value(env.local())
.FromJust());
}
setter = v8_compile("obj.bar = 908;");
for (int i = 0; i < 4; i++) {
CHECK_EQ(908, setter->Run(env.local())
.ToLocalChecked()
->Int32Value(env.local())
.FromJust());
}
// check function static accessors
getter = v8_compile("Fun.object_foo;");
for (int i = 0; i < 4; i++) {
CHECK_EQ(902, getter->Run(env.local())
.ToLocalChecked()
->Int32Value(env.local())
.FromJust());
}
setter = v8_compile("Fun.object_foo = 903;");
for (int i = 0; i < 4; i++) {
CHECK_EQ(903, setter->Run(env.local())
.ToLocalChecked()
->Int32Value(env.local())
.FromJust());
}
// And now with null prototype.
CompileRun(env.local(), "obj.__proto__ = null;");
getter = v8_compile("obj.bar;");
for (int i = 0; i < 4; i++) {
CHECK_EQ(907, getter->Run(env.local())
.ToLocalChecked()
->Int32Value(env.local())
.FromJust());
}
setter = v8_compile("obj.bar = 908;");
for (int i = 0; i < 4; i++) {
CHECK_EQ(908, setter->Run(env.local())
.ToLocalChecked()
->Int32Value(env.local())
.FromJust());
}
}
static void GetIntValue(Local<String> property,
const v8::PropertyCallbackInfo<v8::Value>& info) {
ApiTestFuzzer::Fuzz();
int* value = static_cast<int*>(info.Data().As<v8::External>()->Value());
info.GetReturnValue().Set(v8_num(*value));
}
static void SetIntValue(Local<String> property,
Local<Value> value,
const v8::PropertyCallbackInfo<void>& info) {
int* field = static_cast<int*>(info.Data().As<v8::External>()->Value());
*field = value->Int32Value(info.GetIsolate()->GetCurrentContext()).FromJust();
}
int foo, bar, baz;
THREADED_TEST(GlobalVariableAccess) {
foo = 0;
bar = -4;
baz = 10;
v8::Isolate* isolate = CcTest::isolate();
v8::HandleScope scope(isolate);
v8::Local<v8::FunctionTemplate> templ = v8::FunctionTemplate::New(isolate);
templ->InstanceTemplate()->SetAccessor(
v8_str("foo"), GetIntValue, SetIntValue,
v8::External::New(isolate, &foo));
templ->InstanceTemplate()->SetAccessor(
v8_str("bar"), GetIntValue, SetIntValue,
v8::External::New(isolate, &bar));
templ->InstanceTemplate()->SetAccessor(
v8_str("baz"), GetIntValue, SetIntValue,
v8::External::New(isolate, &baz));
LocalContext env(nullptr, templ->InstanceTemplate());
v8_compile("foo = (++bar) + baz")->Run(env.local()).ToLocalChecked();
CHECK_EQ(-3, bar);
CHECK_EQ(7, foo);
}
static int x_register[2] = {0, 0};
static v8::Local<v8::Object> x_receiver;
static v8::Local<v8::Object> x_holder;
template<class Info>
static void XGetter(const Info& info, int offset) {
ApiTestFuzzer::Fuzz();
v8::Isolate* isolate = CcTest::isolate();
CHECK_EQ(isolate, info.GetIsolate());
CHECK(
x_receiver->Equals(isolate->GetCurrentContext(), info.This()).FromJust());
info.GetReturnValue().Set(v8_num(x_register[offset]));
}
static void XGetter(Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
CHECK(x_holder->Equals(info.GetIsolate()->GetCurrentContext(), info.Holder())
.FromJust());
XGetter(info, 0);
}
static void XGetter(const v8::FunctionCallbackInfo<v8::Value>& info) {
CHECK(
x_receiver->Equals(info.GetIsolate()->GetCurrentContext(), info.Holder())
.FromJust());
XGetter(info, 1);
}
template<class Info>
static void XSetter(Local<Value> value, const Info& info, int offset) {
v8::Isolate* isolate = CcTest::isolate();
CHECK_EQ(isolate, info.GetIsolate());
CHECK(x_holder->Equals(info.GetIsolate()->GetCurrentContext(), info.This())
.FromJust());
CHECK(x_holder->Equals(info.GetIsolate()->GetCurrentContext(), info.Holder())
.FromJust());
x_register[offset] =
value->Int32Value(info.GetIsolate()->GetCurrentContext()).FromJust();
info.GetReturnValue().Set(v8_num(-1));
}
static void XSetter(Local<String> name,
Local<Value> value,
const v8::PropertyCallbackInfo<void>& info) {
XSetter(value, info, 0);
}
static void XSetter(const v8::FunctionCallbackInfo<v8::Value>& info) {
CHECK_EQ(1, info.Length());
XSetter(info[0], info, 1);
}
THREADED_TEST(AccessorIC) {
LocalContext context;
v8::Isolate* isolate = context->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
obj->SetAccessor(v8_str("x0"), XGetter, XSetter);
obj->SetAccessorProperty(v8_str("x1"),
v8::FunctionTemplate::New(isolate, XGetter),
v8::FunctionTemplate::New(isolate, XSetter));
x_holder = obj->NewInstance(context.local()).ToLocalChecked();
CHECK(context->Global()
->Set(context.local(), v8_str("holder"), x_holder)
.FromJust());
x_receiver = v8::Object::New(isolate);
CHECK(context->Global()
->Set(context.local(), v8_str("obj"), x_receiver)
.FromJust());
v8::Local<v8::Array> array = v8::Local<v8::Array>::Cast(
CompileRun("obj.__proto__ = holder;"
"var result = [];"
"var key_0 = 'x0';"
"var key_1 = 'x1';"
"for (var j = 0; j < 10; j++) {"
" var i = 4*j;"
" result.push(holder.x0 = i);"
" result.push(obj.x0);"
" result.push(holder.x1 = i + 1);"
" result.push(obj.x1);"
" result.push(holder[key_0] = i + 2);"
" result.push(obj[key_0]);"
" result.push(holder[key_1] = i + 3);"
" result.push(obj[key_1]);"
"}"
"result"));
CHECK_EQ(80u, array->Length());
for (int i = 0; i < 80; i++) {
v8::Local<Value> entry =
array->Get(context.local(), v8::Integer::New(isolate, i))
.ToLocalChecked();
CHECK(v8::Integer::New(isolate, i / 2)
->Equals(context.local(), entry)
.FromJust());
}
}
template <int C>
static void HandleAllocatingGetter(
Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
ApiTestFuzzer::Fuzz();
for (int i = 0; i < C; i++) {
USE(v8::String::NewFromUtf8Literal(info.GetIsolate(), "foo"));
}
info.GetReturnValue().Set(
v8::String::NewFromUtf8Literal(info.GetIsolate(), "foo"));
}
THREADED_TEST(HandleScopePop) {
LocalContext context;
v8::Isolate* isolate = context->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
obj->SetAccessor(v8_str("one"), HandleAllocatingGetter<1>);
obj->SetAccessor(v8_str("many"), HandleAllocatingGetter<1024>);
v8::Local<v8::Object> inst =
obj->NewInstance(context.local()).ToLocalChecked();
CHECK(
context->Global()->Set(context.local(), v8_str("obj"), inst).FromJust());
int count_before =
i::HandleScope::NumberOfHandles(reinterpret_cast<i::Isolate*>(isolate));
{
v8::HandleScope inner_scope(isolate);
CompileRun(
"for (var i = 0; i < 1000; i++) {"
" obj.one;"
" obj.many;"
"}");
}
int count_after =
i::HandleScope::NumberOfHandles(reinterpret_cast<i::Isolate*>(isolate));
CHECK_EQ(count_before, count_after);
}
static void CheckAccessorArgsCorrect(
Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
CHECK(info.GetIsolate() == CcTest::isolate());
CHECK(info.This() == info.Holder());
CHECK(info.Data()
->Equals(info.GetIsolate()->GetCurrentContext(), v8_str("data"))
.FromJust());
ApiTestFuzzer::Fuzz();
CHECK(info.GetIsolate() == CcTest::isolate());
CHECK(info.This() == info.Holder());
CHECK(info.Data()
->Equals(info.GetIsolate()->GetCurrentContext(), v8_str("data"))
.FromJust());
CcTest::CollectAllGarbage();
CHECK(info.GetIsolate() == CcTest::isolate());
CHECK(info.This() == info.Holder());
CHECK(info.Data()
->Equals(info.GetIsolate()->GetCurrentContext(), v8_str("data"))
.FromJust());
info.GetReturnValue().Set(17);
}
THREADED_TEST(DirectCall) {
LocalContext context;
v8::Isolate* isolate = context->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
obj->SetAccessor(v8_str("xxx"), CheckAccessorArgsCorrect, nullptr,
v8_str("data"));
v8::Local<v8::Object> inst =
obj->NewInstance(context.local()).ToLocalChecked();
CHECK(
context->Global()->Set(context.local(), v8_str("obj"), inst).FromJust());
Local<Script> scr =
v8::Script::Compile(context.local(), v8_str("obj.xxx")).ToLocalChecked();
for (int i = 0; i < 10; i++) {
Local<Value> result = scr->Run(context.local()).ToLocalChecked();
CHECK(!result.IsEmpty());
CHECK_EQ(17, result->Int32Value(context.local()).FromJust());
}
}
static void EmptyGetter(Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
CheckAccessorArgsCorrect(name, info);
ApiTestFuzzer::Fuzz();
CheckAccessorArgsCorrect(name, info);
info.GetReturnValue().Set(v8::Local<v8::Value>());
}
THREADED_TEST(EmptyResult) {
LocalContext context;
v8::Isolate* isolate = context->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
obj->SetAccessor(v8_str("xxx"), EmptyGetter, nullptr, v8_str("data"));
v8::Local<v8::Object> inst =
obj->NewInstance(context.local()).ToLocalChecked();
CHECK(
context->Global()->Set(context.local(), v8_str("obj"), inst).FromJust());
Local<Script> scr =
v8::Script::Compile(context.local(), v8_str("obj.xxx")).ToLocalChecked();
for (int i = 0; i < 10; i++) {
Local<Value> result = scr->Run(context.local()).ToLocalChecked();
CHECK(result == v8::Undefined(isolate));
}
}
THREADED_TEST(NoReuseRegress) {
// Check that the IC generated for the one test doesn't get reused
// for the other.
v8::Isolate* isolate = CcTest::isolate();
v8::HandleScope scope(isolate);
{
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
obj->SetAccessor(v8_str("xxx"), EmptyGetter, nullptr, v8_str("data"));
LocalContext context;
v8::Local<v8::Object> inst =
obj->NewInstance(context.local()).ToLocalChecked();
CHECK(context->Global()
->Set(context.local(), v8_str("obj"), inst)
.FromJust());
Local<Script> scr = v8::Script::Compile(context.local(), v8_str("obj.xxx"))
.ToLocalChecked();
for (int i = 0; i < 2; i++) {
Local<Value> result = scr->Run(context.local()).ToLocalChecked();
CHECK(result == v8::Undefined(isolate));
}
}
{
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
obj->SetAccessor(v8_str("xxx"), CheckAccessorArgsCorrect, nullptr,
v8_str("data"));
LocalContext context;
v8::Local<v8::Object> inst =
obj->NewInstance(context.local()).ToLocalChecked();
CHECK(context->Global()
->Set(context.local(), v8_str("obj"), inst)
.FromJust());
Local<Script> scr = v8::Script::Compile(context.local(), v8_str("obj.xxx"))
.ToLocalChecked();
for (int i = 0; i < 10; i++) {
Local<Value> result = scr->Run(context.local()).ToLocalChecked();
CHECK(!result.IsEmpty());
CHECK_EQ(17, result->Int32Value(context.local()).FromJust());
}
}
}
static void ThrowingGetAccessor(
Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
ApiTestFuzzer::Fuzz();
info.GetIsolate()->ThrowException(v8_str("g"));
}
static void ThrowingSetAccessor(Local<String> name,
Local<Value> value,
const v8::PropertyCallbackInfo<void>& info) {
info.GetIsolate()->ThrowException(value);
}
THREADED_TEST(Regress1054726) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
obj->SetAccessor(v8_str("x"),
ThrowingGetAccessor,
ThrowingSetAccessor,
Local<Value>());
CHECK(env->Global()
->Set(env.local(), v8_str("obj"),
obj->NewInstance(env.local()).ToLocalChecked())
.FromJust());
// Use the throwing property setter/getter in a loop to force
// the accessor ICs to be initialized.
v8::Local<Value> result;
result = Script::Compile(env.local(),
v8_str("var result = '';"
"for (var i = 0; i < 5; i++) {"
" try { obj.x; } catch (e) { result += e; }"
"}; result"))
.ToLocalChecked()
->Run(env.local())
.ToLocalChecked();
CHECK(v8_str("ggggg")->Equals(env.local(), result).FromJust());
result =
Script::Compile(env.local(),
v8_str("var result = '';"
"for (var i = 0; i < 5; i++) {"
" try { obj.x = i; } catch (e) { result += e; }"
"}; result"))
.ToLocalChecked()
->Run(env.local())
.ToLocalChecked();
CHECK(v8_str("01234")->Equals(env.local(), result).FromJust());
}
static void AllocGetter(Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
ApiTestFuzzer::Fuzz();
info.GetReturnValue().Set(v8::Array::New(info.GetIsolate(), 1000));
}
THREADED_TEST(Gc) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
obj->SetAccessor(v8_str("xxx"), AllocGetter);
CHECK(env->Global()
->Set(env.local(), v8_str("obj"),
obj->NewInstance(env.local()).ToLocalChecked())
.FromJust());
Script::Compile(env.local(), v8_str("var last = [];"
"for (var i = 0; i < 2048; i++) {"
" var result = obj.xxx;"
" result[0] = last;"
" last = result;"
"}"))
.ToLocalChecked()
->Run(env.local())
.ToLocalChecked();
}
static void StackCheck(Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
i::Isolate* isolate = reinterpret_cast<i::Isolate*>(info.GetIsolate());
i::StackFrameIterator iter(isolate);
for (int i = 0; !iter.done(); i++) {
i::StackFrame* frame = iter.frame();
CHECK(i != 0 || (frame->type() == i::StackFrame::EXIT));
i::CodeT code = frame->LookupCodeT().ToCodeT();
CHECK(code.contains(isolate, frame->pc()));
iter.Advance();
}
}
THREADED_TEST(StackIteration) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
i::StringStream::ClearMentionedObjectCache(
reinterpret_cast<i::Isolate*>(isolate));
obj->SetAccessor(v8_str("xxx"), StackCheck);
CHECK(env->Global()
->Set(env.local(), v8_str("obj"),
obj->NewInstance(env.local()).ToLocalChecked())
.FromJust());
Script::Compile(env.local(), v8_str("function foo() {"
" return obj.xxx;"
"}"
"for (var i = 0; i < 100; i++) {"
" foo();"
"}"))
.ToLocalChecked()
->Run(env.local())
.ToLocalChecked();
}
static void AllocateHandles(Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
for (int i = 0; i < i::kHandleBlockSize + 1; i++) {
v8::Local<v8::Value>::New(info.GetIsolate(), name);
}
info.GetReturnValue().Set(v8::Integer::New(info.GetIsolate(), 100));
}
THREADED_TEST(HandleScopeSegment) {
// Check that we can return values past popping of handle scope
// segments.
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
obj->SetAccessor(v8_str("xxx"), AllocateHandles);
CHECK(env->Global()
->Set(env.local(), v8_str("obj"),
obj->NewInstance(env.local()).ToLocalChecked())
.FromJust());
v8::Local<v8::Value> result =
Script::Compile(env.local(), v8_str("var result;"
"for (var i = 0; i < 4; i++)"
" result = obj.xxx;"
"result;"))
.ToLocalChecked()
->Run(env.local())
.ToLocalChecked();
CHECK_EQ(100, result->Int32Value(env.local()).FromJust());
}
void JSONStringifyEnumerator(const v8::PropertyCallbackInfo<v8::Array>& info) {
v8::Local<v8::Array> array = v8::Array::New(info.GetIsolate(), 1);
CHECK(array->Set(info.GetIsolate()->GetCurrentContext(), 0, v8_str("regress"))
.FromJust());
info.GetReturnValue().Set(array);
}
void JSONStringifyGetter(Local<Name> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
info.GetReturnValue().Set(v8_str("crbug-161028"));
}
THREADED_TEST(JSONStringifyNamedInterceptorObject) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
obj->SetHandler(v8::NamedPropertyHandlerConfiguration(
JSONStringifyGetter, nullptr, nullptr, nullptr, JSONStringifyEnumerator));
CHECK(env->Global()
->Set(env.local(), v8_str("obj"),
obj->NewInstance(env.local()).ToLocalChecked())
.FromJust());
v8::Local<v8::String> expected = v8_str("{\"regress\":\"crbug-161028\"}");
CHECK(CompileRun("JSON.stringify(obj)")
->Equals(env.local(), expected)
.FromJust());
}
static v8::Local<v8::Context> expected_current_context;
static void check_contexts(const v8::FunctionCallbackInfo<v8::Value>& info) {
ApiTestFuzzer::Fuzz();
CHECK(expected_current_context == info.GetIsolate()->GetCurrentContext());
}
THREADED_TEST(AccessorPropertyCrossContext) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::Function> fun =
v8::Function::New(env.local(), check_contexts).ToLocalChecked();
LocalContext switch_context;
CHECK(switch_context->Global()
->Set(switch_context.local(), v8_str("fun"), fun)
.FromJust());
v8::TryCatch try_catch(isolate);
expected_current_context = env.local();
CompileRun(
"var o = Object.create(null, { n: { get:fun } });"
"for (var i = 0; i < 10; i++) o.n;");
CHECK(!try_catch.HasCaught());
}
THREADED_TEST(GlobalObjectAccessor) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
CompileRun(
"var set_value = 1;"
"Object.defineProperty(this.__proto__, 'x', {"
" get : function() { return this; },"
" set : function() { set_value = this; }"
"});"
"function getter() { return x; }"
"function setter() { x = 1; }");
Local<Script> check_getter = v8_compile("getter()");
Local<Script> check_setter = v8_compile("setter(); set_value");
// Ensure that LoadGlobalICs in getter and StoreGlobalICs setter get
// JSGlobalProxy as a receiver regardless of the current IC state and
// the order in which ICs are executed.
for (int i = 0; i < 10; i++) {
CHECK(
v8::Utils::OpenHandle(*check_getter->Run(env.local()).ToLocalChecked())
->IsJSGlobalProxy());
}
for (int i = 0; i < 10; i++) {
CHECK(
v8::Utils::OpenHandle(*check_setter->Run(env.local()).ToLocalChecked())
->IsJSGlobalProxy());
}
for (int i = 0; i < 10; i++) {
CHECK(
v8::Utils::OpenHandle(*check_getter->Run(env.local()).ToLocalChecked())
->IsJSGlobalProxy());
CHECK(
v8::Utils::OpenHandle(*check_setter->Run(env.local()).ToLocalChecked())
->IsJSGlobalProxy());
}
}
static void EmptyGetter(Local<Name> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
// The request is not intercepted so don't call ApiTestFuzzer::Fuzz() here.
}
static void OneProperty(Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
ApiTestFuzzer::Fuzz();
info.GetReturnValue().Set(v8_num(1));
}
THREADED_TEST(Regress433458) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
obj->SetHandler(v8::NamedPropertyHandlerConfiguration(EmptyGetter));
obj->SetNativeDataProperty(v8_str("prop"), OneProperty);
CHECK(env->Global()
->Set(env.local(), v8_str("obj"),
obj->NewInstance(env.local()).ToLocalChecked())
.FromJust());
CompileRun(
"Object.defineProperty(obj, 'prop', { writable: false });"
"Object.defineProperty(obj, 'prop', { writable: true });");
}
static bool security_check_value = false;
static bool SecurityTestCallback(Local<v8::Context> accessing_context,
Local<v8::Object> accessed_object,
Local<v8::Value> data) {
return security_check_value;
}
TEST(PrototypeGetterAccessCheck) {
i::v8_flags.allow_natives_syntax = true;
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
auto fun_templ = v8::FunctionTemplate::New(isolate);
auto getter_templ = v8::FunctionTemplate::New(isolate, handle_property);
getter_templ->SetAcceptAnyReceiver(false);
fun_templ->InstanceTemplate()->SetAccessorProperty(v8_str("foo"),
getter_templ);
auto obj_templ = v8::ObjectTemplate::New(isolate);
obj_templ->SetAccessCheckCallback(SecurityTestCallback);
CHECK(env->Global()
->Set(env.local(), v8_str("Fun"),
fun_templ->GetFunction(env.local()).ToLocalChecked())
.FromJust());
CHECK(env->Global()
->Set(env.local(), v8_str("obj"),
obj_templ->NewInstance(env.local()).ToLocalChecked())
.FromJust());
CHECK(env->Global()
->Set(env.local(), v8_str("obj2"),
obj_templ->NewInstance(env.local()).ToLocalChecked())
.FromJust());
security_check_value = true;
CompileRun("var proto = new Fun();");
CompileRun("obj.__proto__ = proto;");
ExpectInt32("proto.foo", 907);
// Test direct.
security_check_value = true;
ExpectInt32("obj.foo", 907);
security_check_value = false;
{
v8::TryCatch try_catch(isolate);
CompileRun("obj.foo");
CHECK(try_catch.HasCaught());
}
// Test through call.
security_check_value = true;
ExpectInt32("proto.__lookupGetter__('foo').call(obj)", 907);
security_check_value = false;
{
v8::TryCatch try_catch(isolate);
CompileRun("proto.__lookupGetter__('foo').call(obj)");
CHECK(try_catch.HasCaught());
}
// Test ics.
CompileRun(
"function f() {"
" var x;"
" for (var i = 0; i < 4; i++) {"
" x = obj.foo;"
" }"
" return x;"
"};"
"%PrepareFunctionForOptimization(f);");
security_check_value = true;
ExpectInt32("f()", 907);
security_check_value = false;
{
v8::TryCatch try_catch(isolate);
CompileRun("f();");
CHECK(try_catch.HasCaught());
}
// Test TurboFan.
CompileRun("%OptimizeFunctionOnNextCall(f);");
security_check_value = true;
ExpectInt32("f()", 907);
security_check_value = false;
{
v8::TryCatch try_catch(isolate);
CompileRun("f();");
CHECK(try_catch.HasCaught());
}
}
static void CheckReceiver(Local<String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
CHECK(info.This()->IsObject());
}
TEST(Regress609134) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
auto fun_templ = v8::FunctionTemplate::New(isolate);
fun_templ->InstanceTemplate()->SetNativeDataProperty(v8_str("foo"),
CheckReceiver);
CHECK(env->Global()
->Set(env.local(), v8_str("Fun"),
fun_templ->GetFunction(env.local()).ToLocalChecked())
.FromJust());
CompileRun(
"var f = new Fun();"
"Number.prototype.__proto__ = f;"
"var a = 42;"
"for (var i = 0; i<3; i++) { a.foo; }");
}
TEST(ObjectSetLazyDataProperty) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::Object> obj = v8::Object::New(isolate);
CHECK(env->Global()->Set(env.local(), v8_str("obj"), obj).FromJust());
// Despite getting the property multiple times, the getter should only be
// called once and data property reads should continue to produce the same
// value.
static int getter_call_count;
getter_call_count = 0;
auto result = obj->SetLazyDataProperty(
env.local(), v8_str("foo"),
[](Local<Name> name, const v8::PropertyCallbackInfo<v8::Value>& info) {
getter_call_count++;
info.GetReturnValue().Set(getter_call_count);
});
CHECK(result.FromJust());
CHECK_EQ(0, getter_call_count);
for (int i = 0; i < 2; i++) {
ExpectInt32("obj.foo", 1);
CHECK_EQ(1, getter_call_count);
}
// Setting should overwrite the data property.
result = obj->SetLazyDataProperty(
env.local(), v8_str("bar"),
[](Local<Name> name, const v8::PropertyCallbackInfo<v8::Value>& info) {
CHECK(false);
});
CHECK(result.FromJust());
ExpectInt32("obj.bar = -1; obj.bar;", -1);
}
TEST(ObjectSetLazyDataPropertyForIndex) {
// Regression test for crbug.com/1136800 .
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::Object> obj = v8::Object::New(isolate);
CHECK(env->Global()->Set(env.local(), v8_str("obj"), obj).FromJust());
static int getter_call_count;
getter_call_count = 0;
auto result = obj->SetLazyDataProperty(
env.local(), v8_str("1"),
[](Local<Name> name, const v8::PropertyCallbackInfo<v8::Value>& info) {
getter_call_count++;
info.GetReturnValue().Set(getter_call_count);
});
CHECK(result.FromJust());
CHECK_EQ(0, getter_call_count);
for (int i = 0; i < 2; i++) {
ExpectInt32("obj[1]", 1);
CHECK_EQ(1, getter_call_count);
}
}
TEST(ObjectTemplateSetLazyPropertySurvivesIC) {
i::v8_flags.allow_natives_syntax = true;
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::Local<v8::ObjectTemplate> templ = v8::ObjectTemplate::New(isolate);
static int getter_call_count = 0;
templ->SetLazyDataProperty(
v8_str("foo"), [](v8::Local<v8::Name> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
getter_call_count++;
info.GetReturnValue().Set(getter_call_count);
});
v8::Local<v8::Function> f = CompileRun(
"function f(obj) {"
" obj.foo;"
" obj.foo;"
"};"
"%PrepareFunctionForOptimization(f);"
"f")
.As<v8::Function>();
v8::Local<v8::Value> obj = templ->NewInstance(context).ToLocalChecked();
f->Call(context, context->Global(), 1, &obj).ToLocalChecked();
CHECK_EQ(getter_call_count, 1);
obj = templ->NewInstance(context).ToLocalChecked();
f->Call(context, context->Global(), 1, &obj).ToLocalChecked();
CHECK_EQ(getter_call_count, 2);
}
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