blob: 149069cd085102651b84e7175bfeae464ecde1f2 [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 --no-background-compilation
// Test optimized CodeUnitAt and array access.
import "package:expect/expect.dart";
String one_byte = "hest";
String two_byte = "h\u{2029}ns";
int testOneByteCodeUnitAt(String x, int j) {
int test() {
return x.codeUnitAt(j);
}
for (int i = 0; i < 20; i++) test();
return test();
}
int testTwoByteCodeUnitAt(String x, int j) {
int test() {
return x.codeUnitAt(j);
}
for (int i = 0; i < 20; i++) test();
return test();
}
int testConstantStringCodeUnitAt(int j) {
int test() {
return "h√łns".codeUnitAt(j);
}
for (int i = 0; i < 20; i++) test();
return test();
}
int testConstantIndexCodeUnitAt(String x) {
int test() {
return x.codeUnitAt(1);
}
for (int i = 0; i < 20; i++) test();
return test();
}
int testOneByteCodeUnitAtInLoop(var x) {
var result = 0;
for (int i = 0; i < x.length; i++) {
result += x.codeUnitAt(i);
}
return result;
}
int testTwoByteCodeUnitAtInLoop(var x) {
var result = 0;
for (int i = 0; i < x.length; i++) {
result += x.codeUnitAt(i);
}
return result;
}
main() {
for (int j = 0; j < 10; j++) {
Expect.equals(101, testOneByteCodeUnitAt(one_byte, 1));
Expect.equals(8233, testTwoByteCodeUnitAt(two_byte, 1));
Expect.equals(248, testConstantStringCodeUnitAt(1));
Expect.equals(101, testConstantIndexCodeUnitAt(one_byte));
}
for (int j = 0; j < 20; j++) {
Expect.equals(436, testOneByteCodeUnitAtInLoop(one_byte));
Expect.equals(8562, testTwoByteCodeUnitAtInLoop(two_byte));
}
Expect.throws(() => testOneByteCodeUnitAtInLoop(123));
Expect.throws(() => testTwoByteCodeUnitAtInLoop(123));
}