mirror of
https://github.com/tc39/test262.git
synced 2025-05-09 09:20:30 +02:00
7298a38552
sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
// Copyright 2017 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.
|
|
|
|
// Flags: --allow-natives-syntax
|
|
|
|
function TestBuiltinSubclassing(Builtin) {
|
|
assertTrue(%HasFastProperties(Builtin));
|
|
assertTrue(%HasFastProperties(Builtin.prototype));
|
|
assertTrue(%HasFastProperties(Builtin.prototype.__proto__));
|
|
|
|
class SubClass extends Builtin {}
|
|
|
|
assertTrue(%HasFastProperties(Builtin));
|
|
assertTrue(%HasFastProperties(Builtin.prototype));
|
|
assertTrue(%HasFastProperties(Builtin.prototype.__proto__));
|
|
}
|
|
|
|
let TypedArray = Uint8Array.__proto__;
|
|
|
|
TestBuiltinSubclassing(RegExp);
|
|
TestBuiltinSubclassing(Promise);
|
|
TestBuiltinSubclassing(Array);
|
|
TestBuiltinSubclassing(TypedArray);
|
|
TestBuiltinSubclassing(Uint8Array);
|
|
TestBuiltinSubclassing(Int8Array);
|
|
TestBuiltinSubclassing(Uint16Array);
|
|
TestBuiltinSubclassing(Int16Array);
|
|
TestBuiltinSubclassing(Uint32Array);
|
|
TestBuiltinSubclassing(Int32Array);
|
|
TestBuiltinSubclassing(Float32Array);
|
|
TestBuiltinSubclassing(Float64Array);
|
|
TestBuiltinSubclassing(Uint8ClampedArray);
|