Nate Biggs
f5a53a231b
Change-Id: I4a0fa9f235f24b7746af4d1edb4679c4f8fd8da2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/279542 Reviewed-by: Mayank Patke <fishythefish@google.com>
88 lines
3.2 KiB
Dart
88 lines
3.2 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/common/elements.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 'package:compiler/src/util/memory_compiler.dart';
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const String CODE = """
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class A {}
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main() {
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A a = A();
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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(memorySourceFiles: {
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'main.dart': CODE
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}, options: [
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'--experimental-powersets',
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]);
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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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CommonElements commonElements = closedWorld.commonElements;
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ElementEnvironment elementEnvironment = closedWorld.elementEnvironment;
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final powersetDomain = closedWorld.abstractValueDomain as PowersetDomain;
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PowersetBitsDomain powersetBitsDomain = powersetDomain.powersetBitsDomain;
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var exactTrue = powersetBitsDomain.trueValue;
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var exactFalse = powersetBitsDomain.falseValue;
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dynamic classA =
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elementEnvironment.lookupClass(elementEnvironment.mainLibrary!, 'A');
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var exactA = powersetBitsDomain.createNonNullExact(classA);
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var subtypeObject =
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powersetBitsDomain.createNonNullSubtype(commonElements.objectClass);
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var exactNull =
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powersetBitsDomain.createNonNullExact(commonElements.jsNullClass);
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var exactBool =
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powersetBitsDomain.createNonNullExact(commonElements.jsBoolClass);
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var nullableBool =
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powersetBitsDomain.createNullableExact(commonElements.jsBoolClass);
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var unionTrueFalse = powersetBitsDomain.union(exactTrue, exactFalse);
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var unionBoolNull = powersetBitsDomain.union(exactBool, exactNull);
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var unionBoolNullOther = powersetBitsDomain.union(unionBoolNull, exactA);
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Expect.equals(unionTrueFalse, exactBool);
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Expect.equals(unionBoolNull, nullableBool);
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Expect.equals(unionBoolNullOther, powersetBitsDomain.powersetTop);
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checkDisjoint(int v1, int v2) {
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Expect.isTrue(powersetBitsDomain.areDisjoint(v1, v2).isDefinitelyTrue);
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}
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checkDisjoint(exactTrue, exactFalse);
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checkDisjoint(exactA, exactNull);
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checkDisjoint(subtypeObject, exactNull);
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checkDisjoint(exactBool, exactNull);
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checkDisjoint(exactA, exactBool);
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checkDisjoint(exactA, nullableBool);
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checkisIn(int v1, int v2) {
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Expect.isTrue(powersetBitsDomain.isIn(v1, v2).isDefinitelyTrue);
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}
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checkisIn(exactTrue, exactBool);
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checkisIn(exactFalse, exactBool);
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checkisIn(exactNull, nullableBool);
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checkisIn(exactBool, nullableBool);
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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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