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OSCHINA-MIRROR/openharmony-third_party_jerryscript

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proxy_construct.js 3.5 КБ
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Gavin1012 Отправлено 4 лет назад 0c184d9
// Copyright JS Foundation and other contributors, http://js.foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Copyright 2015 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.
var target = function () {};
var handler = { construct (target) {
throw 42;
}};
var proxy = new Proxy(target, handler);
try {
// opfunc_call
new proxy(5)
assert(false);
} catch (e) {
assert(e === 42);
}
try {
// 22.1.2.3.4.a
Array.of.call(proxy);
assert(false);
} catch (e) {
assert(e === 42);
}
// test basic functionality
var proxy = new Proxy({},{});
try {
new proxy();
assert(false);
} catch (e) {
assert(e instanceof TypeError);
}
var proxy2 = new Proxy(proxy, {});
try {
new proxy2();
assert(false);
} catch (e) {
assert(e instanceof TypeError);
}
var called = false;
function Target() {
called = true;
this.property1 = 'value1';
};
Target.prototype = {};
var proxy = new Proxy(Target, {});
assert(called === false);
var instance = new proxy();
assert(called === true);
assert('value1' === instance.property1);
assert(Target.prototype === Object.getPrototypeOf(instance));
var proxy2 = new Proxy(proxy, {});
called = false;
var instance2 = new proxy2();
assert(called === true);
assert('value1' === instance2.property1);
assert(Target.prototype === Object.getPrototypeOf(instance));
function Target2(a, b) {
this.sum = a + b;
};
var handler = {
construct(t, c, args) {
return { sum: 42 };
}
};
var proxy = new Proxy(Target2, handler);
assert((new proxy(1, 2)).sum === 42);
function Target3(arg1, arg2) {
this.arg1 = arg1;
this.arg2 = arg2;
}
var seen_target, seen_arguments, seen_new_target;
var handler = {
construct(target, args, new_target) {
seen_target = target;
seen_arguments = args;
seen_new_target = new_target;
return Reflect.construct(target, args, new_target);
}
}
var proxy = new Proxy(Target3, handler);
var instance = new proxy('a', 'b');
assert(Target3 === seen_target);
assert(JSON.stringify(seen_arguments) === '["a","b"]');
assert(proxy === seen_new_target);
assert('a' === instance.arg1);
assert('b' === instance.arg2);
var instance2 = Reflect.construct(proxy, ['a1', 'b1'], Array);
assert(Target3 === seen_target);
assert(JSON.stringify(seen_arguments) === '["a1","b1"]');
assert(Array === seen_new_target);
assert('a1'=== instance2.arg1);
assert('b1' === instance2.arg2);
var p = new Proxy(function() {}, {
construct: function(target, argumentsList, newTarget) {
throw 42;
}
});
try {
new p();
assert(false);
} catch (e) {
assert(e === 42);
}
// test when invariants gets violated
var p = new Proxy(function() {}, {
construct: function(target, argumentsList, newTarget) {
return 1;
}
});
try {
new p();
assert(false);
} catch (e) {
assert(e instanceof TypeError);
}
var p = new Proxy({}, {
construct: function(target, argumentsList, newTarget) {
return {};
}
});
try {
new p();
assert(false);
} catch (e) {
assert(e instanceof TypeError);
}

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https://gitlife.ru/oschina-mirror/openharmony-third_party_jerryscript.git
git@gitlife.ru:oschina-mirror/openharmony-third_party_jerryscript.git
oschina-mirror
openharmony-third_party_jerryscript
openharmony-third_party_jerryscript
OpenHarmony-v5.0.2-Release