| // Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| abstract class FactorTypeTestMixin<Type> { |
| Type futureNone(Type type); |
| Type futureOrNone(Type type); |
| |
| Type get dynamicType; |
| Type get intNone; |
| Type get intQuestion; |
| Type get intStar; |
| Type get numNone; |
| Type get numQuestion; |
| Type get numStar; |
| Type get objectNone; |
| Type get objectQuestion; |
| Type get objectStar; |
| Type get stringNone; |
| Type get stringQuestion; |
| Type get stringStar; |
| Type get nullNone; |
| Type get voidType; |
| |
| void test_dynamic() { |
| check(dynamicType, intNone, 'dynamic'); |
| } |
| |
| void test_futureOr() { |
| check(futureOrNone(intNone), intNone, 'Future<int>'); |
| check(futureOrNone(intNone), futureNone(intNone), 'int'); |
| |
| check(futureOrNone(intQuestion), intNone, 'FutureOr<int?>'); |
| check(futureOrNone(intQuestion), futureNone(intNone), 'FutureOr<int?>'); |
| check(futureOrNone(intQuestion), intQuestion, 'Future<int?>'); |
| check(futureOrNone(intQuestion), futureNone(intQuestion), 'int?'); |
| check(futureOrNone(intQuestion), intStar, 'Future<int?>'); |
| check(futureOrNone(intQuestion), futureNone(intStar), 'int?'); |
| |
| check(futureOrNone(intNone), numNone, 'Future<int>'); |
| check(futureOrNone(intNone), futureNone(numNone), 'int'); |
| } |
| |
| void test_object() { |
| check(objectNone, objectNone, 'Never'); |
| check(objectNone, objectQuestion, 'Never'); |
| check(objectNone, objectStar, 'Never'); |
| |
| check(objectNone, intNone, 'Object'); |
| check(objectNone, intQuestion, 'Object'); |
| check(objectNone, intStar, 'Object'); |
| |
| check(objectQuestion, objectNone, 'Never?'); |
| check(objectQuestion, objectQuestion, 'Never'); |
| check(objectQuestion, objectStar, 'Never'); |
| |
| check(objectQuestion, intNone, 'Object?'); |
| check(objectQuestion, intQuestion, 'Object'); |
| check(objectQuestion, intStar, 'Object'); |
| } |
| |
| test_subtype() { |
| check(intNone, intNone, 'Never'); |
| check(intNone, intQuestion, 'Never'); |
| check(intNone, intStar, 'Never'); |
| |
| check(intQuestion, intNone, 'Never?'); |
| check(intQuestion, intQuestion, 'Never'); |
| check(intQuestion, intStar, 'Never'); |
| |
| check(intStar, intNone, 'Never'); |
| check(intStar, intQuestion, 'Never'); |
| check(intStar, intStar, 'Never'); |
| |
| check(intNone, numNone, 'Never'); |
| check(intNone, numQuestion, 'Never'); |
| check(intNone, numStar, 'Never'); |
| |
| check(intQuestion, numNone, 'Never?'); |
| check(intQuestion, numQuestion, 'Never'); |
| check(intQuestion, numStar, 'Never'); |
| |
| check(intStar, numNone, 'Never'); |
| check(intStar, numQuestion, 'Never'); |
| check(intStar, numStar, 'Never'); |
| |
| check(intNone, nullNone, 'int'); |
| check(intQuestion, nullNone, 'int'); |
| check(intStar, nullNone, 'int'); |
| |
| check(intNone, stringNone, 'int'); |
| check(intQuestion, stringNone, 'int?'); |
| check(intStar, stringNone, 'int*'); |
| |
| check(intNone, stringQuestion, 'int'); |
| check(intQuestion, stringQuestion, 'int'); |
| check(intStar, stringQuestion, 'int'); |
| |
| check(intNone, stringStar, 'int'); |
| check(intQuestion, stringStar, 'int'); |
| check(intStar, stringStar, 'int'); |
| } |
| |
| void test_void() { |
| check(voidType, intNone, 'void'); |
| } |
| |
| Type factor(Type T, Type S); |
| |
| void expect(Type T, Type S, String actualResult, String expectedResult); |
| |
| void check(Type T, Type S, String expectedStr) { |
| Type result = factor(T, S); |
| String resultStr = typeString(result); |
| |
| expect(T, S, resultStr, expectedStr); |
| } |
| |
| String typeString(Type type); |
| } |