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59 lines
1.2 KiB
59 lines
1.2 KiB
10 years ago
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/*
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* Subclassing Buffers.
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*
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* Right now .slice() returns a new view instance which copies the
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* internal prototype of the this binding (instead of using Buffer.prototype).
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*
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* This is probably not the preferred behavior, but test for current behavior.
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*/
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/*---
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{
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"custom": true
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}
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---*/
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/* Custom because current behavior differs from e.g. V8. */
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/*===
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object
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[object Buffer]
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MyBuffer
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MyNodejsBuffer
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true
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object
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[object Buffer]
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MyBuffer
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MyNodejsBuffer
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true
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===*/
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function slicePrototypeInheritanceTest() {
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var proto = {
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name: 'MyNodejsBuffer',
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toString: function () { return 'MyBuffer'; }
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};
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Object.setPrototypeOf(proto, Buffer.prototype);
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var b1 = new Buffer('ABCDEFGH');
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Object.setPrototypeOf(b1, proto);
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print(typeof b1);
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print(Object.prototype.toString.call(b1));
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print(String(b1));
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print(b1.name);
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print(Object.getPrototypeOf(b1) === proto);
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var b2 = b1.slice(5);
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print(typeof b2);
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print(Object.prototype.toString.call(b2));
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print(String(b2));
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print(b2.name);
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print(Object.getPrototypeOf(b2) === proto);
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}
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try {
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slicePrototypeInheritanceTest();
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} catch (e) {
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print(e.stack || e);
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}
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