Nate Biggs
f5a53a231b
Change-Id: I4a0fa9f235f24b7746af4d1edb4679c4f8fd8da2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/279542 Reviewed-by: Mayank Patke <fishythefish@google.com>
70 lines
2.1 KiB
Dart
70 lines
2.1 KiB
Dart
// Copyright (c) 2020, 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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import 'package:async_helper/async_helper.dart';
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import 'package:compiler/src/common.dart';
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import 'package:compiler/src/compiler.dart';
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import 'package:compiler/src/inferrer/powersets/powersets.dart';
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import 'package:compiler/src/inferrer/powersets/powerset_bits.dart';
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import 'package:compiler/src/js_model/js_world.dart' show JClosedWorld;
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import 'package:expect/expect.dart';
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import '../helpers/element_lookup.dart';
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import 'package:compiler/src/util/memory_compiler.dart';
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const String CODE = """
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var a = true;
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var b = true;
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var c = true;
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var d = true;
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var e = func();
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var sink;
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bool func() {
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return false;
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}
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main() {
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b = func();
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c = b && a;
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d = a || b;
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e = false;
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sink = e;
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print(sink);
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}
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""";
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main() {
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retainDataForTesting = true;
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runTests() async {
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CompilationResult result = await runCompiler(
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memorySourceFiles: {'main.dart': CODE},
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options: ['--experimental-powersets']);
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Expect.isTrue(result.isSuccess);
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Compiler compiler = result.compiler;
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var results = compiler.globalInference.resultsForTesting!;
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JClosedWorld closedWorld = results.closedWorld;
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final powersetDomain = closedWorld.abstractValueDomain as PowersetDomain;
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PowersetBitsDomain powersetBitsDomain = powersetDomain.powersetBitsDomain;
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checkBits(String name, bits) {
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var element = findMember(closedWorld, name);
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final mask = results.resultOfMember(element).type as PowersetValue;
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Expect.equals(bits, mask.powersetBits);
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}
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checkBits('a', powersetBitsDomain.trueValue);
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checkBits('b', powersetBitsDomain.boolValue);
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checkBits('c', powersetBitsDomain.boolValue);
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checkBits('d', powersetBitsDomain.boolValue);
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checkBits(
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'e', powersetBitsDomain.falseValue | powersetBitsDomain.nullValue);
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}
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asyncTest(() async {
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print('--test from kernel------------------------------------------------');
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await runTests();
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});
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}
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