John Messerly
110 lines
2.5 KiB
Dart
110 lines
2.5 KiB
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Testing optimized 'is' tests.
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// VMOptions=--optimization-counter-threshold=5 --no-use-osr
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import "package:expect/expect.dart";
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bool isInt(x) => x is int;
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int isIntRes(x) {
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if (x is int) {
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return 1;
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} else {
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return 0;
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}
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}
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int isNotIntRes(x) {
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if (x is! int) {
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return 1;
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} else {
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return 0;
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}
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}
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int isIfThenElseIntRes(x) {
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return x is int ? 1 : 0;
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}
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bool isString(x) => x is String;
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int isStringRes(x) {
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if (x is String) {
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return 1;
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} else {
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return 0;
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}
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}
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int isNotStringRes(x) {
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if (x is! String) {
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return 1;
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} else {
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return 0;
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}
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}
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main() {
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for (int i = 0; i < 20; i++) {
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Expect.isFalse(isInt(3.2));
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Expect.isTrue(isInt(3));
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Expect.isTrue(isInt(17179869184)); // Mint on ia32.
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Expect.isFalse(isString(2.0));
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Expect.isTrue(isString("Morgan"));
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}
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// No deoptimization of isInt possible since all types are known by the compiler
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Expect.isFalse(isString(true));
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for (int i = 0; i < 20; i++) {
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Expect.isFalse(isInt(3.2));
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Expect.isTrue(isInt(3));
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Expect.isTrue(isInt(17179869184)); // Mint on ia32.
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Expect.isFalse(isInt("hu"));
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Expect.isFalse(isString(2.0));
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Expect.isTrue(isString("Morgan"));
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Expect.isFalse(isString(true));
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}
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for (int i = 0; i < 20; i++) {
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Expect.equals(0, isIntRes(3.2));
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Expect.equals(1, isIntRes(3));
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Expect.equals(0, isIntRes("hi"));
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Expect.equals(1, isNotIntRes(3.2));
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Expect.equals(0, isNotIntRes(3));
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Expect.equals(1, isNotIntRes("hi"));
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Expect.equals(0, isIfThenElseIntRes(3.2));
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Expect.equals(1, isIfThenElseIntRes(3));
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Expect.equals(0, isIfThenElseIntRes("hi"));
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}
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for (int i = 0; i < 20; i++) {
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Expect.equals(0, isStringRes(3.2));
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Expect.equals(1, isStringRes("Lotus"));
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Expect.equals(1, isNotStringRes(3.2));
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Expect.equals(0, isNotStringRes("Lotus"));
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}
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// Deoptimize 'isStringRes', 'isNotIntRes'.
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Expect.equals(0, isStringRes(null));
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Expect.equals(1, isNotIntRes(null));
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for (int i = 0; i < 20; i++) {
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Expect.equals(0, isStringRes(3.2));
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Expect.equals(1, isStringRes("Lotus"));
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Expect.equals(0, isStringRes(null));
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Expect.equals(1, isNotStringRes(3.2));
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Expect.equals(0, isNotStringRes("Lotus"));
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Expect.equals(1, isNotStringRes(null));
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}
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} |