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8253f51b64
Bug: Change-Id: I935b29026125e0318cc977a7d5c6fd45479a0d56 Reviewed-on: https://dart-review.googlesource.com/7853 Commit-Queue: Ben Konyi <bkonyi@google.com> Reviewed-by: Leaf Petersen <leafp@google.com>
63 lines
1.5 KiB
Dart
63 lines
1.5 KiB
Dart
// Copyright (c) 2012, 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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// VMOptions=--optimization-counter-threshold=10 --no-use-osr
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import "package:expect/expect.dart";
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// Test optimized constant string and constant array access.
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int testConstantStringAndIndexCodeUnitAt() {
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int test(b) {
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if (b) return "hest".codeUnitAt(400);
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return "hest".codeUnitAt(2);
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}
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Expect.throws(() => test(true));
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for (int i = 0; i < 20; i++) test(false);
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Expect.throws(() => test(true));
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}
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int testConstantArrayAndIndexAt() {
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int testPositive(b) {
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var a = const [1, 2, 3, 4];
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if (b) return a[400];
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return a[2];
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}
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int testNegative(b) {
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var a = const [1, 2, 3, 4];
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if (b) return a[-1];
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return a[2];
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}
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Expect.throws(() => testPositive(true));
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for (int i = 0; i < 20; i++) testPositive(false);
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Expect.throws(() => testPositive(true));
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Expect.throws(() => testNegative(true));
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for (int i = 0; i < 20; i++) testNegative(false);
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Expect.throws(() => testNegative(true));
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}
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foo(a) {
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if (a == 1) {
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return 2;
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}
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var aa = const [1, 2];
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return aa[2.3]; /*@compile-error=unspecified*/
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}
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int testNonSmiIndex() {
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for (int i = 0; i < 20; i++) {
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foo(1);
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}
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Expect.throws(() => foo(2));
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}
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main() {
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testConstantStringAndIndexCodeUnitAt();
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testConstantArrayAndIndexAt();
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testNonSmiIndex();
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}
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