Stephen Adams
cc3b3f4976
25 hits in FluteComplex. Many come from APIs with `[start, end)` range arguments that are unused so `length = end - start` is now optimized to `end`. Change-Id: I59527f85323bed717d62249f0c1d69b477645ec2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/360444 Commit-Queue: Stephen Adams <sra@google.com> Reviewed-by: Nate Biggs <natebiggs@google.com>
116 lines
2.2 KiB
Dart
116 lines
2.2 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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// Generally, we can replace `a - b` with `a` when `a` is a number and `b` is
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// zero.
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//
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// The exception is when both operands are negative zero: `(-0.0) - (-0.0)`
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// results in a non-negative zero.
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//
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// With web numbers, the value `-0.0` is recognized as an integer so can occur
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// as a constant right operand, usually by constant-folding.
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/*member: main:ignore*/
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void main() {
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for (final a in [
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C(),
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0,
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-0.0,
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1,
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-1,
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1.1,
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-1.1,
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double.nan,
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double.infinity,
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double.negativeInfinity,
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]) {
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sink.add(whenDynamic(a));
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if (a is int) {
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sink.add(whenInt1(a));
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sink.add(whenInt2(a));
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}
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if (a is double) {
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sink.add(whenDouble1(a));
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sink.add(whenDouble2(a));
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}
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if (a is num) {
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sink.add(whenNum1(a));
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sink.add(whenNum2(a));
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sink.add(whenNum3(a));
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}
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}
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}
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final List<Object?> sink = [];
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@pragma('dart2js:never-inline')
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/*member: whenDynamic:function(thing) {
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return J.$sub$n(thing, 0);
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}*/
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whenDynamic(dynamic thing) {
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return thing - 0;
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}
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@pragma('dart2js:never-inline')
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/*member: whenInt1:function(a) {
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return a;
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}*/
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int whenInt1(int a) {
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return a - 0;
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}
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@pragma('dart2js:never-inline')
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/*member: whenInt2:function(a) {
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return a - -0.0;
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}*/
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int whenInt2(int a) {
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return a - (-0);
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}
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@pragma('dart2js:never-inline')
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/*member: whenDouble1:function(a) {
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return a;
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}*/
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double whenDouble1(double a) {
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return a - 0;
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}
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@pragma('dart2js:never-inline')
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/*member: whenDouble2:function(a) {
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return a - -0.0;
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}*/
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double whenDouble2(double a) {
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return a - (-0.0);
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}
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@pragma('dart2js:never-inline')
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/*member: whenNum1:function(a) {
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return a;
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}*/
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num whenNum1(num a) {
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return a - 0;
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}
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@pragma('dart2js:never-inline')
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/*member: whenNum2:function(a) {
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return a - -0.0;
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}*/
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num whenNum2(num a) {
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return a - (-0);
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}
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@pragma('dart2js:never-inline')
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/*member: whenNum3:function(a) {
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return a - -0.0;
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}*/
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num whenNum3(num a) {
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return a - (-0.0);
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}
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class C {
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/*member: C.-:ignore*/
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C operator -(int i) => this;
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}
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