blob: 2fc2b3ff11b6170560064082028e5c07e9f752ed [file] [log] [blame]
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// VMOptions=--optimization-counter-threshold=10 --no-use-osr
// @dart = 2.9
import "package:expect/expect.dart";
// Test optimized constant string and constant array access.
int testConstantStringAndIndexCodeUnitAt() {
int test(b) {
if (b) return "hest".codeUnitAt(400);
return "hest".codeUnitAt(2);
}
Expect.throws(() => test(true));
for (int i = 0; i < 20; i++) test(false);
Expect.throws(() => test(true));
}
int testConstantArrayAndIndexAt() {
int testPositive(b) {
var a = const [1, 2, 3, 4];
if (b) return a[400];
return a[2];
}
int testNegative(b) {
var a = const [1, 2, 3, 4];
if (b) return a[-1];
return a[2];
}
Expect.throws(() => testPositive(true));
for (int i = 0; i < 20; i++) testPositive(false);
Expect.throws(() => testPositive(true));
Expect.throws(() => testNegative(true));
for (int i = 0; i < 20; i++) testNegative(false);
Expect.throws(() => testNegative(true));
}
foo(a) {
if (a == 1) {
return 2;
}
var aa = const [1, 2];
return aa[2.3]; /*@compile-error=unspecified*/
}
int testNonSmiIndex() {
for (int i = 0; i < 20; i++) {
foo(1);
}
Expect.throws(() => foo(2));
}
main() {
testConstantStringAndIndexCodeUnitAt();
testConstantArrayAndIndexAt();
testNonSmiIndex();
}