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// 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.
(() => {
// Make sure we inline the callback, pick up all possible TurboFan
// optimizations.
function RunOptFast(multiple) {
// Use of variable multiple in the callback function forces
// context creation without escape analysis.
//
// Also, the arrow function requires inlining based on
// SharedFunctionInfo.
result = array.find((v, i, a) => v === `value ${multiple}`);
}
// Don't optimize because I want to optimize RunOptFast with a parameter
// to be used in the callback.
%NeverOptimizeFunction(OptFast);
function OptFast() { RunOptFast(max_index); }
function side_effect(a) { return a; }
%NeverOptimizeFunction(side_effect);
function OptUnreliable() {
result = array.find(func, side_effect(array));
}
function Naive() {
let index = -1;
const length = array == null ? 0 : array.length;
for (let index = 0; index < length; index++) {
const value = array[index];
if (func(value, index, array)) {
result = value;
break;
}
}
}
function NaiveSetup() {
// Prime Naive with polymorphic cases.
array = [1, 2, 3];
Naive();
Naive();
array = [3.4]; Naive();
array = new Array(10); array[0] = 'hello'; Naive();
SmiSetup();
delete array[1];
}
DefineHigherOrderTests([
// name, test function, setup function, user callback
['NaiveFindReplacement', Naive, NaiveSetup, v => v === max_index],
['DoubleFind', newClosure('find'), DoubleSetup, v => v === max_index + 0.5],
['SmiFind', newClosure('find'), SmiSetup, v => v === max_index],
['FastFind', newClosure('find'), FastSetup, v => v === `value ${max_index}`],
['GenericFind', newClosure('find', true), ObjectSetup, v => v === max_index],
['OptFastFind', OptFast, FastSetup, undefined],
['OptUnreliableFind', OptUnreliable, FastSetup, v => v === max_index]
]);
})();
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