Vijay Menon
c139653fcb
This bites us on Angular - dart:collection and angular's collection (facade) lib smash on top of each other, silently causing issues. We'll need a better naming convention - perhaps we should use the lib name and require uniqueness. Fixes #208 R=jmesserly@google.com Review URL: https://codereview.chromium.org/1145243013
94 lines
2.6 KiB
JavaScript
94 lines
2.6 KiB
JavaScript
dart.library('BenchmarkBase', null, /* Imports */[
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'dart/core'
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], /* Lazy imports */[
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], function(exports, core) {
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'use strict';
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class Expect extends core.Object {
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static equals(expected, actual) {
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if (!dart.equals(expected, actual)) {
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throw `Values not equal: ${expected} vs ${actual}`;
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}
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}
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static listEquals(expected, actual) {
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if (expected.length != actual.length) {
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throw `Lists have different lengths: ${expected.length} vs ${actual.length}`;
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}
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for (let i = 0; dart.notNull(i) < dart.notNull(actual.length); i = dart.notNull(i) + 1) {
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Expect.equals(expected[dartx.get](i), actual[dartx.get](i));
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}
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}
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fail(message) {
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throw message;
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}
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}
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dart.setSignature(Expect, {
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methods: () => ({fail: [core.Object, [core.Object]]}),
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statics: () => ({
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equals: [dart.void, [core.Object, core.Object]],
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listEquals: [dart.void, [core.List, core.List]]
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}),
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names: ['equals', 'listEquals']
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});
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class BenchmarkBase extends core.Object {
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BenchmarkBase(name) {
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this.name = name;
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}
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run() {}
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warmup() {
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this.run();
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}
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exercise() {
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for (let i = 0; dart.notNull(i) < 10; i = dart.notNull(i) + 1) {
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this.run();
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}
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}
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setup() {}
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teardown() {}
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static measureFor(f, timeMinimum) {
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let time = 0;
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let iter = 0;
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let watch = new core.Stopwatch();
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watch.start();
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let elapsed = 0;
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while (dart.notNull(elapsed) < dart.notNull(timeMinimum)) {
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dart.dcall(f);
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elapsed = watch.elapsedMilliseconds;
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iter = dart.notNull(iter) + 1;
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}
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return 1000.0 * dart.notNull(elapsed) / dart.notNull(iter);
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}
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measure() {
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this.setup();
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BenchmarkBase.measureFor(dart.fn(() => {
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this.warmup();
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}), 100);
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let result = BenchmarkBase.measureFor(dart.fn(() => {
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this.exercise();
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}), 2000);
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this.teardown();
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return result;
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}
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report() {
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let score = this.measure();
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core.print(`${this.name}(RunTime): ${score} us.`);
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}
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}
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dart.setSignature(BenchmarkBase, {
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constructors: () => ({BenchmarkBase: [BenchmarkBase, [core.String]]}),
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methods: () => ({
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run: [dart.void, []],
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warmup: [dart.void, []],
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exercise: [dart.void, []],
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setup: [dart.void, []],
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teardown: [dart.void, []],
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measure: [core.double, []],
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report: [dart.void, []]
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}),
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statics: () => ({measureFor: [core.double, [core.Function, core.int]]}),
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names: ['measureFor']
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});
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// Exports:
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exports.Expect = Expect;
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exports.BenchmarkBase = BenchmarkBase;
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});
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