| // Copyright 2016 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/cctest.h" |
| |
| namespace { |
| |
| int* global_use_counts = NULL; |
| |
| void MockUseCounterCallback(v8::Isolate* isolate, |
| v8::Isolate::UseCounterFeature feature) { |
| ++global_use_counts[feature]; |
| } |
| } |
| |
| TEST(DefineGetterSetterThrowUseCount) { |
| v8::Isolate* isolate = CcTest::isolate(); |
| v8::HandleScope scope(isolate); |
| LocalContext env; |
| int use_counts[v8::Isolate::kUseCounterFeatureCount] = {}; |
| global_use_counts = use_counts; |
| CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback); |
| |
| // __defineGetter__ and __defineSetter__ do not increment |
| // kDefineGetterOrSetterWouldThrow on success |
| CompileRun( |
| "var a = {};" |
| "Object.defineProperty(a, 'b', { value: 0, configurable: true });" |
| "a.__defineGetter__('b', ()=>{});"); |
| CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]); |
| CompileRun( |
| "var a = {};" |
| "Object.defineProperty(a, 'b', { value: 0, configurable: true });" |
| "a.__defineSetter__('b', ()=>{});"); |
| CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]); |
| |
| // __defineGetter__ and __defineSetter__ do not increment |
| // kDefineGetterOrSetterWouldThrow on other errors |
| v8::Local<v8::Value> resultProxyThrow = CompileRun( |
| "var exception;" |
| "try {" |
| "var a = new Proxy({}, { defineProperty: ()=>{throw new Error;} });" |
| "a.__defineGetter__('b', ()=>{});" |
| "} catch (e) { exception = e; }" |
| "exception"); |
| CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]); |
| CHECK(resultProxyThrow->IsObject()); |
| resultProxyThrow = CompileRun( |
| "var exception;" |
| "try {" |
| "var a = new Proxy({}, { defineProperty: ()=>{throw new Error;} });" |
| "a.__defineSetter__('b', ()=>{});" |
| "} catch (e) { exception = e; }" |
| "exception"); |
| CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]); |
| CHECK(resultProxyThrow->IsObject()); |
| |
| // __defineGetter__ and __defineSetter__ increment |
| // kDefineGetterOrSetterWouldThrow when they would throw per spec (B.2.2.2) |
| CompileRun( |
| "var a = {};" |
| "Object.defineProperty(a, 'b', { value: 0, configurable: false });" |
| "a.__defineGetter__('b', ()=>{});"); |
| CHECK_EQ(1, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]); |
| CompileRun( |
| "var a = {};" |
| "Object.defineProperty(a, 'b', { value: 0, configurable: false });" |
| "a.__defineSetter__('b', ()=>{});"); |
| CHECK_EQ(2, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]); |
| } |