Stephen Adams
9505e957e1
Bug: #26835 #28330 Change-Id: I2ea5d3022901a67b10fdb7ca0a6233a22ca233bf Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/417328 Commit-Queue: Stephen Adams <sra@google.com> Reviewed-by: Mayank Patke <fishythefish@google.com>
85 lines
2.2 KiB
Dart
85 lines
2.2 KiB
Dart
// Copyright (c) 2025, 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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// Examples where primitive checks should be removed.
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//
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// In all these examples, the loop bound `a + b + c + d` should be hoisted out
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// of the loop.
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/*member: test1:function(a, b, c, d) {
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var t1, s, i;
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if (a == null || b == null || c == null || d == null)
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return 0;
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for (t1 = a + b + c + d, s = 0, i = 1; i <= t1; ++i)
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s += i;
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return s;
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}*/
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int test1(int? a, int? b, int? c, int? d) {
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if (a == null || b == null || c == null || d == null) return 0;
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int s = 0;
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for (int i = 1; i <= a + b + c + d; i++) s += i;
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return s;
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}
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/*member: test2:function(a, b, c, d) {
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var t1, s, i;
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if (!A._isInt(a) || !A._isInt(b) || !A._isInt(c) || !A._isInt(d))
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return 0;
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for (t1 = a + b + c + d, s = 0, i = 1; i <= t1; ++i)
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s += i;
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return s;
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}*/
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int test2(int? a, int? b, int? c, int? d) {
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if (a is! int || b is! int || c is! int || d is! int) return 0;
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int s = 0;
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for (int i = 1; i <= a + b + c + d; i++) s += i;
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return s;
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}
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/*member: test3:function(a, b, c, d) {
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var t1, i, s = 0;
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if (a != null && b != null && c != null && d != null)
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for (t1 = a + b + c + d, i = 1; i <= t1; ++i)
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s += i;
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return s;
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}*/
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int test3(int? a, int? b, int? c, int? d) {
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int s = 0;
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if (a != null && b != null && c != null && d != null) {
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for (int i = 1; i <= a + b + c + d; i++) s += i;
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}
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return s;
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}
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/*member: test4:function(a, b, c, d) {
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var t1, i, s = 0;
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if (A._isInt(a) && A._isInt(b) && A._isInt(c) && A._isInt(d))
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for (t1 = a + b + c + d, i = 1; i <= t1; ++i)
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s += i;
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return s;
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}*/
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int test4(int? a, int? b, int? c, int? d) {
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int s = 0;
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if (a is int && b is int && c is int && d is int) {
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for (int i = 1; i <= a + b + c + d; i++) s += i;
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}
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return s;
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}
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/*member: main:ignore*/
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main() {
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for (final a in [null, -1, 2]) {
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for (final b in [null, -1, 2]) {
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for (final c in [null, -1, 2]) {
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for (final d in [null, -1, 2]) {
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print(test1(a, b, c, d));
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print(test2(a, b, c, d));
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print(test3(a, b, c, d));
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print(test4(a, b, c, d));
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}
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}
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}
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}
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}
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