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v8/test/cctest/test-object-observe.cc

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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 "v8.h"
#include "cctest.h"
using namespace v8;
namespace i = v8::internal;
TEST(PerIsolateState) {
HandleScope scope(CcTest::isolate());
LocalContext context1(CcTest::isolate());
CompileRun(
"var count = 0;"
"var calls = 0;"
"var observer = function(records) { count = records.length; calls++ };"
"var obj = {};"
"Object.observe(obj, observer);");
Handle<Value> observer = CompileRun("observer");
Handle<Value> obj = CompileRun("obj");
Handle<Value> notify_fun1 = CompileRun(
"(function() { obj.foo = 'bar'; })");
Handle<Value> notify_fun2;
{
LocalContext context2(CcTest::isolate());
context2->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "obj"),
obj);
notify_fun2 = CompileRun(
"(function() { obj.foo = 'baz'; })");
}
Handle<Value> notify_fun3;
{
LocalContext context3(CcTest::isolate());
context3->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "obj"),
obj);
notify_fun3 = CompileRun(
"(function() { obj.foo = 'bat'; })");
}
{
LocalContext context4(CcTest::isolate());
context4->Global()->Set(
String::NewFromUtf8(CcTest::isolate(), "observer"), observer);
context4->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "fun1"),
notify_fun1);
context4->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "fun2"),
notify_fun2);
context4->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "fun3"),
notify_fun3);
CompileRun("fun1(); fun2(); fun3(); Object.deliverChangeRecords(observer)");
}
CHECK_EQ(1, CompileRun("calls")->Int32Value());
CHECK_EQ(3, CompileRun("count")->Int32Value());
}
TEST(EndOfMicrotaskDelivery) {
HandleScope scope(CcTest::isolate());
LocalContext context(CcTest::isolate());
CompileRun(
"var obj = {};"
"var count = 0;"
"var observer = function(records) { count = records.length };"
"Object.observe(obj, observer);"
"obj.foo = 'bar';");
CHECK_EQ(1, CompileRun("count")->Int32Value());
}
TEST(DeliveryOrdering) {
HandleScope scope(CcTest::isolate());
LocalContext context(CcTest::isolate());
CompileRun(
"var obj1 = {};"
"var obj2 = {};"
"var ordering = [];"
"function observer2() { ordering.push(2); };"
"function observer1() { ordering.push(1); };"
"function observer3() { ordering.push(3); };"
"Object.observe(obj1, observer1);"
"Object.observe(obj1, observer2);"
"Object.observe(obj1, observer3);"
"obj1.foo = 'bar';");
CHECK_EQ(3, CompileRun("ordering.length")->Int32Value());
CHECK_EQ(1, CompileRun("ordering[0]")->Int32Value());
CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value());
CHECK_EQ(3, CompileRun("ordering[2]")->Int32Value());
CompileRun(
"ordering = [];"
"Object.observe(obj2, observer3);"
"Object.observe(obj2, observer2);"
"Object.observe(obj2, observer1);"
"obj2.foo = 'baz'");
CHECK_EQ(3, CompileRun("ordering.length")->Int32Value());
CHECK_EQ(1, CompileRun("ordering[0]")->Int32Value());
CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value());
CHECK_EQ(3, CompileRun("ordering[2]")->Int32Value());
}
TEST(DeliveryOrderingReentrant) {
HandleScope scope(CcTest::isolate());
LocalContext context(CcTest::isolate());
CompileRun(
"var obj = {};"
"var reentered = false;"
"var ordering = [];"
"function observer1() { ordering.push(1); };"
"function observer2() {"
" if (!reentered) {"
" obj.foo = 'baz';"
" reentered = true;"
" }"
" ordering.push(2);"
"};"
"function observer3() { ordering.push(3); };"
"Object.observe(obj, observer1);"
"Object.observe(obj, observer2);"
"Object.observe(obj, observer3);"
"obj.foo = 'bar';");
CHECK_EQ(5, CompileRun("ordering.length")->Int32Value());
CHECK_EQ(1, CompileRun("ordering[0]")->Int32Value());
CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value());
CHECK_EQ(3, CompileRun("ordering[2]")->Int32Value());
// Note that we re-deliver to observers 1 and 2, while observer3
// already received the second record during the first round.
CHECK_EQ(1, CompileRun("ordering[3]")->Int32Value());
CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value());
}
TEST(DeliveryOrderingDeliverChangeRecords) {
HandleScope scope(CcTest::isolate());
LocalContext context(CcTest::isolate());
CompileRun(
"var obj = {};"
"var ordering = [];"
"function observer1() { ordering.push(1); if (!obj.b) obj.b = true };"
"function observer2() { ordering.push(2); };"
"Object.observe(obj, observer1);"
"Object.observe(obj, observer2);"
"obj.a = 1;"
"Object.deliverChangeRecords(observer2);");
CHECK_EQ(4, CompileRun("ordering.length")->Int32Value());
// First, observer2 is called due to deliverChangeRecords
CHECK_EQ(2, CompileRun("ordering[0]")->Int32Value());
// Then, observer1 is called when the stack unwinds
CHECK_EQ(1, CompileRun("ordering[1]")->Int32Value());
// observer1's mutation causes both 1 and 2 to be reactivated,
// with 1 having priority.
CHECK_EQ(1, CompileRun("ordering[2]")->Int32Value());
CHECK_EQ(2, CompileRun("ordering[3]")->Int32Value());
}
TEST(ObjectHashTableGrowth) {
HandleScope scope(CcTest::isolate());
// Initializing this context sets up initial hash tables.
LocalContext context(CcTest::isolate());
Handle<Value> obj = CompileRun("obj = {};");
Handle<Value> observer = CompileRun(
"var ran = false;"
"(function() { ran = true })");
{
// As does initializing this context.
LocalContext context2(CcTest::isolate());
context2->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "obj"),
obj);
context2->Global()->Set(
String::NewFromUtf8(CcTest::isolate(), "observer"), observer);
CompileRun(
"var objArr = [];"
// 100 objects should be enough to make the hash table grow
// (and thus relocate).
"for (var i = 0; i < 100; ++i) {"
" objArr.push({});"
" Object.observe(objArr[objArr.length-1], function(){});"
"}"
"Object.observe(obj, observer);");
}
// obj is now marked "is_observed", but our map has moved.
CompileRun("obj.foo = 'bar'");
CHECK(CompileRun("ran")->BooleanValue());
}
TEST(GlobalObjectObservation) {
LocalContext context(CcTest::isolate());
HandleScope scope(CcTest::isolate());
Handle<Object> global_proxy = context->Global();
CompileRun(
"var records = [];"
"var global = this;"
"Object.observe(global, function(r) { [].push.apply(records, r) });"
"global.foo = 'hello';");
CHECK_EQ(1, CompileRun("records.length")->Int32Value());
CHECK(global_proxy->StrictEquals(CompileRun("records[0].object")));
// Detached, mutating the proxy has no effect.
context->DetachGlobal();
CompileRun("global.bar = 'goodbye';");
CHECK_EQ(1, CompileRun("records.length")->Int32Value());
CompileRun("this.baz = 'goodbye';");
CHECK_EQ(1, CompileRun("records.length")->Int32Value());
// Attached to a different context, should not leak mutations
// to the old context.
context->DetachGlobal();
{
LocalContext context2(CcTest::isolate());
CompileRun(
"var records2 = [];"
"var global = this;"
"Object.observe(this, function(r) { [].push.apply(records2, r) });"
"this.v1 = 'context2';");
context2->DetachGlobal();
CompileRun(
"global.v2 = 'context2';"
"this.v3 = 'context2';");
CHECK_EQ(1, CompileRun("records2.length")->Int32Value());
}
CHECK_EQ(1, CompileRun("records.length")->Int32Value());
// Attaching by passing to Context::New
{
// Delegates to Context::New
LocalContext context3(
CcTest::isolate(), NULL, Handle<ObjectTemplate>(), global_proxy);
CompileRun(
"var records3 = [];"
"Object.observe(this, function(r) { [].push.apply(records3, r) });"
"this.qux = 'context3';");
CHECK_EQ(1, CompileRun("records3.length")->Int32Value());
CHECK(global_proxy->StrictEquals(CompileRun("records3[0].object")));
}
CHECK_EQ(1, CompileRun("records.length")->Int32Value());
}
struct RecordExpectation {
Handle<Value> object;
const char* type;
const char* name;
Handle<Value> old_value;
};
// TODO(adamk): Use this helper elsewhere in this file.
static void ExpectRecords(v8::Isolate* isolate,
Handle<Value> records,
const RecordExpectation expectations[],
int num) {
CHECK(records->IsArray());
Handle<Array> recordArray = records.As<Array>();
CHECK_EQ(num, static_cast<int>(recordArray->Length()));
for (int i = 0; i < num; ++i) {
Handle<Value> record = recordArray->Get(i);
CHECK(record->IsObject());
Handle<Object> recordObj = record.As<Object>();
CHECK(expectations[i].object->StrictEquals(
recordObj->Get(String::NewFromUtf8(isolate, "object"))));
CHECK(String::NewFromUtf8(isolate, expectations[i].type)->Equals(
recordObj->Get(String::NewFromUtf8(isolate, "type"))));
if (strcmp("splice", expectations[i].type) != 0) {
CHECK(String::NewFromUtf8(isolate, expectations[i].name)->Equals(
recordObj->Get(String::NewFromUtf8(isolate, "name"))));
if (!expectations[i].old_value.IsEmpty()) {
CHECK(expectations[i].old_value->Equals(
recordObj->Get(String::NewFromUtf8(isolate, "oldValue"))));
}
}
}
}
#define EXPECT_RECORDS(records, expectations) \
ExpectRecords(CcTest::isolate(), records, expectations, \
ARRAY_SIZE(expectations))
TEST(APITestBasicMutation) {
v8::Isolate* v8_isolate = CcTest::isolate();
HandleScope scope(v8_isolate);
LocalContext context(v8_isolate);
Handle<Object> obj = Handle<Object>::Cast(CompileRun(
"var records = [];"
"var obj = {};"
"function observer(r) { [].push.apply(records, r); };"
"Object.observe(obj, observer);"
"obj"));
obj->Set(String::NewFromUtf8(v8_isolate, "foo"),
Number::New(v8_isolate, 7));
obj->Set(1, Number::New(v8_isolate, 2));
// ForceSet should work just as well as Set
obj->ForceSet(String::NewFromUtf8(v8_isolate, "foo"),
Number::New(v8_isolate, 3));
obj->ForceSet(Number::New(v8_isolate, 1), Number::New(v8_isolate, 4));
// Setting an indexed element via the property setting method
obj->Set(Number::New(v8_isolate, 1), Number::New(v8_isolate, 5));
// Setting with a non-String, non-uint32 key
obj->Set(Number::New(v8_isolate, 1.1),
Number::New(v8_isolate, 6), DontDelete);
obj->Delete(String::NewFromUtf8(v8_isolate, "foo"));
obj->Delete(1);
obj->ForceDelete(Number::New(v8_isolate, 1.1));
// Force delivery
// TODO(adamk): Should the above set methods trigger delivery themselves?
CompileRun("void 0");
CHECK_EQ(9, CompileRun("records.length")->Int32Value());
const RecordExpectation expected_records[] = {
{ obj, "add", "foo", Handle<Value>() },
{ obj, "add", "1", Handle<Value>() },
// Note: use 7 not 1 below, as the latter triggers a nifty VS10 compiler bug
// where instead of 1.0, a garbage value would be passed into Number::New.
{ obj, "update", "foo", Number::New(v8_isolate, 7) },
{ obj, "update", "1", Number::New(v8_isolate, 2) },
{ obj, "update", "1", Number::New(v8_isolate, 4) },
{ obj, "add", "1.1", Handle<Value>() },
{ obj, "delete", "foo", Number::New(v8_isolate, 3) },
{ obj, "delete", "1", Number::New(v8_isolate, 5) },
{ obj, "delete", "1.1", Number::New(v8_isolate, 6) }
};
EXPECT_RECORDS(CompileRun("records"), expected_records);
}
TEST(HiddenPrototypeObservation) {
v8::Isolate* v8_isolate = CcTest::isolate();
HandleScope scope(v8_isolate);
LocalContext context(v8_isolate);
Handle<FunctionTemplate> tmpl = FunctionTemplate::New(v8_isolate);
tmpl->SetHiddenPrototype(true);
tmpl->InstanceTemplate()->Set(
String::NewFromUtf8(v8_isolate, "foo"), Number::New(v8_isolate, 75));
Handle<Object> proto = tmpl->GetFunction()->NewInstance();
Handle<Object> obj = Object::New(v8_isolate);
obj->SetPrototype(proto);
context->Global()->Set(String::NewFromUtf8(v8_isolate, "obj"), obj);
context->Global()->Set(String::NewFromUtf8(v8_isolate, "proto"),
proto);
CompileRun(
"var records;"
"function observer(r) { records = r; };"
"Object.observe(obj, observer);"
"obj.foo = 41;" // triggers a notification
"proto.foo = 42;"); // does not trigger a notification
const RecordExpectation expected_records[] = {
{ obj, "update", "foo", Number::New(v8_isolate, 75) }
};
EXPECT_RECORDS(CompileRun("records"), expected_records);
obj->SetPrototype(Null(v8_isolate));
CompileRun("obj.foo = 43");
const RecordExpectation expected_records2[] = {
{ obj, "add", "foo", Handle<Value>() }
};
EXPECT_RECORDS(CompileRun("records"), expected_records2);
obj->SetPrototype(proto);
CompileRun(
"Object.observe(proto, observer);"
"proto.bar = 1;"
"Object.unobserve(obj, observer);"
"obj.foo = 44;");
const RecordExpectation expected_records3[] = {
{ proto, "add", "bar", Handle<Value>() }
// TODO(adamk): The below record should be emitted since proto is observed
// and has been modified. Not clear if this happens in practice.
// { proto, "update", "foo", Number::New(43) }
};
EXPECT_RECORDS(CompileRun("records"), expected_records3);
}
static int NumberOfElements(i::Handle<i::JSWeakMap> map) {
return i::ObjectHashTable::cast(map->table())->NumberOfElements();
}
TEST(ObservationWeakMap) {
HandleScope scope(CcTest::isolate());
LocalContext context(CcTest::isolate());
CompileRun(
"var obj = {};"
"Object.observe(obj, function(){});"
"Object.getNotifier(obj);"
"obj = null;");
i::Isolate* i_isolate = CcTest::i_isolate();
i::Handle<i::JSObject> observation_state =
i_isolate->factory()->observation_state();
i::Handle<i::JSWeakMap> callbackInfoMap =
i::Handle<i::JSWeakMap>::cast(i::Object::GetProperty(
i_isolate, observation_state, "callbackInfoMap").ToHandleChecked());
i::Handle<i::JSWeakMap> objectInfoMap =
i::Handle<i::JSWeakMap>::cast(i::Object::GetProperty(
i_isolate, observation_state, "objectInfoMap").ToHandleChecked());
i::Handle<i::JSWeakMap> notifierObjectInfoMap =
i::Handle<i::JSWeakMap>::cast(i::Object::GetProperty(
i_isolate, observation_state, "notifierObjectInfoMap")
.ToHandleChecked());
CHECK_EQ(1, NumberOfElements(callbackInfoMap));
CHECK_EQ(1, NumberOfElements(objectInfoMap));
CHECK_EQ(1, NumberOfElements(notifierObjectInfoMap));
i_isolate->heap()->CollectAllGarbage(i::Heap::kAbortIncrementalMarkingMask);
CHECK_EQ(0, NumberOfElements(callbackInfoMap));
CHECK_EQ(0, NumberOfElements(objectInfoMap));
CHECK_EQ(0, NumberOfElements(notifierObjectInfoMap));
}
static bool NamedAccessAlwaysAllowed(Local<Object>, Local<Value>, AccessType,
Local<Value>) {
return true;
}
static bool IndexedAccessAlwaysAllowed(Local<Object>, uint32_t, AccessType,
Local<Value>) {
return true;
}
static AccessType g_access_block_type = ACCESS_GET;
static const uint32_t kBlockedContextIndex = 1337;
static bool NamedAccessAllowUnlessBlocked(Local<Object> host,
Local<Value> key,
AccessType type,
Local<Value> data) {
if (type != g_access_block_type) return true;
v8::Isolate* isolate = reinterpret_cast<v8::Isolate*>(
Utils::OpenHandle(*host)->GetIsolate());
Handle<Object> global = isolate->GetCurrentContext()->Global();
if (!global->Has(kBlockedContextIndex)) return true;
return !key->IsString() || !key->Equals(data);
}
static bool IndexedAccessAllowUnlessBlocked(Local<Object> host,
uint32_t index,
AccessType type,
Local<Value> data) {
if (type != g_access_block_type) return true;
v8::Isolate* isolate = reinterpret_cast<v8::Isolate*>(
Utils::OpenHandle(*host)->GetIsolate());
Handle<Object> global = isolate->GetCurrentContext()->Global();
if (!global->Has(kBlockedContextIndex)) return true;
return index != data->Uint32Value();
}
static bool BlockAccessKeys(Local<Object> host, Local<Value> key,
AccessType type, Local<Value>) {
v8::Isolate* isolate = reinterpret_cast<v8::Isolate*>(
Utils::OpenHandle(*host)->GetIsolate());
Handle<Object> global = isolate->GetCurrentContext()->Global();
return type != ACCESS_KEYS || !global->Has(kBlockedContextIndex);
}
static Handle<Object> CreateAccessCheckedObject(
v8::Isolate* isolate,
NamedSecurityCallback namedCallback,
IndexedSecurityCallback indexedCallback,
Handle<Value> data = Handle<Value>()) {
Handle<ObjectTemplate> tmpl = ObjectTemplate::New(isolate);
tmpl->SetAccessCheckCallbacks(namedCallback, indexedCallback, data);
Handle<Object> instance = tmpl->NewInstance();
Handle<Object> global = instance->CreationContext()->Global();
global->Set(String::NewFromUtf8(isolate, "obj"), instance);
global->Set(kBlockedContextIndex, v8::True(isolate));
return instance;
}
TEST(NamedAccessCheck) {
const AccessType types[] = { ACCESS_GET, ACCESS_HAS };
for (size_t i = 0; i < ARRAY_SIZE(types); ++i) {
HandleScope scope(CcTest::isolate());
LocalContext context(CcTest::isolate());
g_access_block_type = types[i];
Handle<Object> instance = CreateAccessCheckedObject(
CcTest::isolate(),
NamedAccessAllowUnlessBlocked,
IndexedAccessAlwaysAllowed,
String::NewFromUtf8(CcTest::isolate(), "foo"));
CompileRun("var records = null;"
"var objNoCheck = {};"
"var observer = function(r) { records = r };"
"Object.observe(obj, observer);"
"Object.observe(objNoCheck, observer);");
Handle<Value> obj_no_check = CompileRun("objNoCheck");
{
LocalContext context2(CcTest::isolate());
context2->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "obj"),
instance);
context2->Global()->Set(
String::NewFromUtf8(CcTest::isolate(), "objNoCheck"),
obj_no_check);
CompileRun("var records2 = null;"
"var observer2 = function(r) { records2 = r };"
"Object.observe(obj, observer2);"
"Object.observe(objNoCheck, observer2);"
"obj.foo = 'bar';"
"Object.defineProperty(obj, 'foo', {value: 5});"
"Object.defineProperty(obj, 'foo', {get: function(){}});"
"obj.bar = 'baz';"
"objNoCheck.baz = 'quux'");
const RecordExpectation expected_records2[] = {
{ instance, "add", "foo", Handle<Value>() },
{ instance, "update", "foo",
String::NewFromUtf8(CcTest::isolate(), "bar") },
{ instance, "reconfigure", "foo",
Number::New(CcTest::isolate(), 5) },
{ instance, "add", "bar", Handle<Value>() },
{ obj_no_check, "add", "baz", Handle<Value>() },
};
EXPECT_RECORDS(CompileRun("records2"), expected_records2);
}
const RecordExpectation expected_records[] = {
{ instance, "add", "bar", Handle<Value>() },
{ obj_no_check, "add", "baz", Handle<Value>() }
};
EXPECT_RECORDS(CompileRun("records"), expected_records);
}
}
TEST(IndexedAccessCheck) {
const AccessType types[] = { ACCESS_GET, ACCESS_HAS };
for (size_t i = 0; i < ARRAY_SIZE(types); ++i) {
HandleScope scope(CcTest::isolate());
LocalContext context(CcTest::isolate());
g_access_block_type = types[i];
Handle<Object> instance = CreateAccessCheckedObject(
CcTest::isolate(), NamedAccessAlwaysAllowed,
IndexedAccessAllowUnlessBlocked, Number::New(CcTest::isolate(), 7));
CompileRun("var records = null;"
"var objNoCheck = {};"
"var observer = function(r) { records = r };"
"Object.observe(obj, observer);"
"Object.observe(objNoCheck, observer);");
Handle<Value> obj_no_check = CompileRun("objNoCheck");
{
LocalContext context2(CcTest::isolate());
context2->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "obj"),
instance);
context2->Global()->Set(
String::NewFromUtf8(CcTest::isolate(), "objNoCheck"),
obj_no_check);
CompileRun("var records2 = null;"
"var observer2 = function(r) { records2 = r };"
"Object.observe(obj, observer2);"
"Object.observe(objNoCheck, observer2);"
"obj[7] = 'foo';"
"Object.defineProperty(obj, '7', {value: 5});"
"Object.defineProperty(obj, '7', {get: function(){}});"
"obj[8] = 'bar';"
"objNoCheck[42] = 'quux'");
const RecordExpectation expected_records2[] = {
{ instance, "add", "7", Handle<Value>() },
{ instance, "update", "7",
String::NewFromUtf8(CcTest::isolate(), "foo") },
{ instance, "reconfigure", "7", Number::New(CcTest::isolate(), 5) },
{ instance, "add", "8", Handle<Value>() },
{ obj_no_check, "add", "42", Handle<Value>() }
};
EXPECT_RECORDS(CompileRun("records2"), expected_records2);
}
const RecordExpectation expected_records[] = {
{ instance, "add", "8", Handle<Value>() },
{ obj_no_check, "add", "42", Handle<Value>() }
};
EXPECT_RECORDS(CompileRun("records"), expected_records);
}
}
TEST(SpliceAccessCheck) {
HandleScope scope(CcTest::isolate());
LocalContext context(CcTest::isolate());
g_access_block_type = ACCESS_GET;
Handle<Object> instance = CreateAccessCheckedObject(
CcTest::isolate(), NamedAccessAlwaysAllowed,
IndexedAccessAllowUnlessBlocked, Number::New(CcTest::isolate(), 1));
CompileRun("var records = null;"
"obj[1] = 'foo';"
"obj.length = 2;"
"var objNoCheck = {1: 'bar', length: 2};"
"observer = function(r) { records = r };"
"Array.observe(obj, observer);"
"Array.observe(objNoCheck, observer);");
Handle<Value> obj_no_check = CompileRun("objNoCheck");
{
LocalContext context2(CcTest::isolate());
context2->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "obj"),
instance);
context2->Global()->Set(
String::NewFromUtf8(CcTest::isolate(), "objNoCheck"), obj_no_check);
CompileRun("var records2 = null;"
"var observer2 = function(r) { records2 = r };"
"Array.observe(obj, observer2);"
"Array.observe(objNoCheck, observer2);"
// No one should hear about this: no splice records are emitted
// for access-checked objects
"[].push.call(obj, 5);"
"[].splice.call(obj, 1, 1);"
"[].pop.call(obj);"
"[].pop.call(objNoCheck);");
// TODO(adamk): Extend EXPECT_RECORDS to be able to assert more things
// about splice records. For this test it's not so important since
// we just want to guarantee the machinery is in operation at all.
const RecordExpectation expected_records2[] = {
{ obj_no_check, "splice", "", Handle<Value>() }
};
EXPECT_RECORDS(CompileRun("records2"), expected_records2);
}
const RecordExpectation expected_records[] = {
{ obj_no_check, "splice", "", Handle<Value>() }
};
EXPECT_RECORDS(CompileRun("records"), expected_records);
}
TEST(DisallowAllForAccessKeys) {
HandleScope scope(CcTest::isolate());
LocalContext context(CcTest::isolate());
Handle<Object> instance = CreateAccessCheckedObject(
CcTest::isolate(), BlockAccessKeys, IndexedAccessAlwaysAllowed);
CompileRun("var records = null;"
"var objNoCheck = {};"
"var observer = function(r) { records = r };"
"Object.observe(obj, observer);"
"Object.observe(objNoCheck, observer);");
Handle<Value> obj_no_check = CompileRun("objNoCheck");
{
LocalContext context2(CcTest::isolate());
context2->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "obj"),
instance);
context2->Global()->Set(
String::NewFromUtf8(CcTest::isolate(), "objNoCheck"), obj_no_check);
CompileRun("var records2 = null;"
"var observer2 = function(r) { records2 = r };"
"Object.observe(obj, observer2);"
"Object.observe(objNoCheck, observer2);"
"obj.foo = 'bar';"
"obj[5] = 'baz';"
"objNoCheck.baz = 'quux'");
const RecordExpectation expected_records2[] = {
{ instance, "add", "foo", Handle<Value>() },
{ instance, "add", "5", Handle<Value>() },
{ obj_no_check, "add", "baz", Handle<Value>() },
};
EXPECT_RECORDS(CompileRun("records2"), expected_records2);
}
const RecordExpectation expected_records[] = {
{ obj_no_check, "add", "baz", Handle<Value>() }
};
EXPECT_RECORDS(CompileRun("records"), expected_records);
}
TEST(AccessCheckDisallowApiModifications) {
HandleScope scope(CcTest::isolate());
LocalContext context(CcTest::isolate());
Handle<Object> instance = CreateAccessCheckedObject(
CcTest::isolate(), BlockAccessKeys, IndexedAccessAlwaysAllowed);
CompileRun("var records = null;"
"var observer = function(r) { records = r };"
"Object.observe(obj, observer);");
{
LocalContext context2(CcTest::isolate());
context2->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "obj"),
instance);
CompileRun("var records2 = null;"
"var observer2 = function(r) { records2 = r };"
"Object.observe(obj, observer2);");
instance->Set(5, String::NewFromUtf8(CcTest::isolate(), "bar"));
instance->Set(String::NewFromUtf8(CcTest::isolate(), "foo"),
String::NewFromUtf8(CcTest::isolate(), "bar"));
CompileRun(""); // trigger delivery
const RecordExpectation expected_records2[] = {
{ instance, "add", "5", Handle<Value>() },
{ instance, "add", "foo", Handle<Value>() }
};
EXPECT_RECORDS(CompileRun("records2"), expected_records2);
}
CHECK(CompileRun("records")->IsNull());
}
TEST(HiddenPropertiesLeakage) {
HandleScope scope(CcTest::isolate());
LocalContext context(CcTest::isolate());
CompileRun("var obj = {};"
"var records = null;"
"var observer = function(r) { records = r };"
"Object.observe(obj, observer);");
Handle<Value> obj =
context->Global()->Get(String::NewFromUtf8(CcTest::isolate(), "obj"));
Handle<Object>::Cast(obj)
->SetHiddenValue(String::NewFromUtf8(CcTest::isolate(), "foo"),
Null(CcTest::isolate()));
CompileRun(""); // trigger delivery
CHECK(CompileRun("records")->IsNull());
}
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