44 lines
1.0 KiB
JavaScript
44 lines
1.0 KiB
JavaScript
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// Copyright 2015 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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new BenchmarkSuite('Closures', [1000], [
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new Benchmark('ShortLivingClosures', false, false, 0,
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ShortLivingClosures, ShortLivingClosuresSetup, ShortLivingClosuresTearDown)
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]);
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// ----------------------------------------------------------------------------
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// The pattern is this example is very common in Node.js.
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var fs = {
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readFile: function(filename, cb) {
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cb(null, {length: 12});
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}
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};
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function printLength (filename) {
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fs.readFile(filename, foo);
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function foo (err, buf) {
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if (err) return;
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for (var j = 0; j<1000; j++) {
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// Do some work to make the optimization actually worth while
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buf.length++;
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}
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return (buf.length);
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}
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}
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function ShortLivingClosuresSetup() {}
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function ShortLivingClosures() {
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result = printLength('foo_bar.js');
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}
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function ShortLivingClosuresTearDown() {
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return result == 1012;
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}
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