Stephen Adams
e66a0cbde8
- Add SSA HArrayFlags{Check,Get,Set} instructions to check for
fixed-length and unmodifiable JSArray and JavaScript typed data
instances.
- Add optimizations to remove redundant checks.
- Added HOutputConstrained interface for instructions that must have
the input and output in the same JavaScript variable. This
generalizes some code generation logic already applied to HCheck.
Bug: #53785
Change-Id: I61750dd03aa3a964eed3bc76e1656c5f60f77109
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/372002
Commit-Queue: Stephen Adams <sra@google.com>
Reviewed-by: Mayank Patke <fishythefish@google.com>
51 lines
1.2 KiB
Dart
51 lines
1.2 KiB
Dart
// Copyright (c) 2024, 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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@pragma('dart2js:never-inline')
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/*spec|canary.member: test1:function(a) {
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B.JSArray_methods.$indexSet(a, 5, 1);
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B.JSArray_methods.$indexSet(a, 0, 2);
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return a;
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}*/
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/*prod.member: test1:function(a) {
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a.$flags & 2 && A.throwUnsupportedOperation(a);
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if (5 >= a.length)
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return A.ioore(a, 5);
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a[5] = 1;
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a[0] = 2;
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return a;
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}*/
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List<int> test1(List<int> a) {
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a[5] = 1;
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a[0] = 2;
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return a;
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}
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@pragma('dart2js:never-inline')
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/*member: test2:function(a) {
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B.JSArray_methods.add$1(a, 100);
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return a;
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}*/
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List<int> test2(List<int> a) {
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a.add(100);
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return a;
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}
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@pragma('dart2js:never-inline')
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bool isEven(int i) => i.isEven;
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@pragma('dart2js:never-inline')
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/*member: maybeUnmodifiable:ignore*/
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List<int> maybeUnmodifiable() {
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List<int> d = List.filled(10, 0);
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if (DateTime.now().millisecondsSinceEpoch == 42) d = List.unmodifiable(d);
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return d;
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}
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/*member: main:ignore*/
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main() {
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print(test1(maybeUnmodifiable()));
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print(test2(maybeUnmodifiable()));
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}
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