74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
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// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/v8.h"
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#include "test/cctest/cctest.h"
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namespace {
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int* global_use_counts = NULL;
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void MockUseCounterCallback(v8::Isolate* isolate,
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v8::Isolate::UseCounterFeature feature) {
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++global_use_counts[feature];
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}
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}
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TEST(DefineGetterSetterThrowUseCount) {
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v8::Isolate* isolate = CcTest::isolate();
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v8::HandleScope scope(isolate);
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LocalContext env;
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int use_counts[v8::Isolate::kUseCounterFeatureCount] = {};
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global_use_counts = use_counts;
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CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback);
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// __defineGetter__ and __defineSetter__ do not increment
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// kDefineGetterOrSetterWouldThrow on success
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CompileRun(
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"var a = {};"
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"Object.defineProperty(a, 'b', { value: 0, configurable: true });"
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"a.__defineGetter__('b', ()=>{});");
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CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
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CompileRun(
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"var a = {};"
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"Object.defineProperty(a, 'b', { value: 0, configurable: true });"
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"a.__defineSetter__('b', ()=>{});");
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CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
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// __defineGetter__ and __defineSetter__ do not increment
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// kDefineGetterOrSetterWouldThrow on other errors
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v8::Local<v8::Value> resultProxyThrow = CompileRun(
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"var exception;"
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"try {"
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"var a = new Proxy({}, { defineProperty: ()=>{throw new Error;} });"
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"a.__defineGetter__('b', ()=>{});"
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"} catch (e) { exception = e; }"
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"exception");
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CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
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CHECK(resultProxyThrow->IsObject());
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resultProxyThrow = CompileRun(
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"var exception;"
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"try {"
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"var a = new Proxy({}, { defineProperty: ()=>{throw new Error;} });"
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"a.__defineSetter__('b', ()=>{});"
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"} catch (e) { exception = e; }"
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"exception");
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CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
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CHECK(resultProxyThrow->IsObject());
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// __defineGetter__ and __defineSetter__ increment
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// kDefineGetterOrSetterWouldThrow when they would throw per spec (B.2.2.2)
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CompileRun(
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"var a = {};"
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"Object.defineProperty(a, 'b', { value: 0, configurable: false });"
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"a.__defineGetter__('b', ()=>{});");
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CHECK_EQ(1, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
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CompileRun(
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"var a = {};"
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"Object.defineProperty(a, 'b', { value: 0, configurable: false });"
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"a.__defineSetter__('b', ()=>{});");
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CHECK_EQ(2, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
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}
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