tests/kernel/unsorted/constant_expressions_test.dart - Issue 2451893004: Revert "Reland "Merge more Kernel infrastructure from kernel_sdk SDK fork.""

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Issue 2451893004: Revert "Reland "Merge more Kernel infrastructure from kernel_sdk SDK fork."" (Closed)

Patch Set: Created 4 years, 1 month ago

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1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file

2 // for details. All rights reserved. Use of this source code is governed by a

3 // BSD-style license that can be found in the LICENSE file.

4

5 import 'expect.dart';

6

7 const int42 = 40 + 2;

8 const stringAB = 'a' + 'b';

9 const stringAB2 = 'a' + 'b';

10 const list123 = const [1, 2, 3];

11 const mapABC = const {'a' : 'b', 'b': 'c'};

12

13 const boxInt42 = const Box(int42);

14 const boxStringAB = const Box(stringAB);

15

16 class Box {

17 final value;

18 const Box(this.value);

19 }

20

21 returnPositional([a = const Box('posi' + 'tional')]) => a;

22

23 returnNamed({a: const Box('nam' + 'ed')}) => a;

24

25 returnSwitchCasedValue(value) {

26 switch (value) {

27 case const Box(42): return 42;

28 case const Box('abc'): return 'abc';

29 case const Box(const Box('abc')): return const Box('abc');

30 default: return 'default';

31 }

32 }

33

34 testConstantExpressions() {

35 Expect.isTrue(identical(const Box(40 + 2), const Box(40 + 2)));

36 Expect.isTrue(identical(const Box('a' + 'b'), const Box('ab')));

37 Expect.isTrue(identical(const Box(const Box(40 + 2)),

38 const Box(const Box(42))));

39 Expect.isTrue(identical(const Box(const Box('a' + 'b')),

40 const Box(const Box('ab'))));

41 }

42

43 testConstantFieldValues() {

44 Expect.isTrue(identical(42, int42));

45 Expect.isTrue(identical(stringAB, stringAB2));

46 Expect.isTrue(identical(const Box(42), boxInt42));

47 Expect.isTrue(identical(const Box('ab'), boxStringAB));

48 }

49

50 testConstantFunctionParameters() {

51 Expect.isTrue(identical(const Box('positional'), returnPositional()));

52 Expect.isTrue(identical(const Box('named'), returnNamed()));

53 Expect.isTrue(identical(const Box('abc'),

54 returnPositional(const Box('abc'))));

55 Expect.isTrue(identical(const Box('def'),

56 returnNamed(a: const Box('def'))));

57 }

58

59 testConstantSwitchExpressions() {

60 Expect.isTrue(returnSwitchCasedValue(const Box(42)) == 42);

61 Expect.isTrue(returnSwitchCasedValue(const Box('abc')) == 'abc');

62 Expect.isTrue(returnSwitchCasedValue(const Box(const Box('abc')))

63 == const Box('abc'));

64 Expect.isTrue(returnSwitchCasedValue(const Box('go-to-default'))

65 == 'default');

66 }

67

68 testConstantLocalVariables() {

69 const a = 'a';

70 const b = a + 'b';

71 const c = b + 'c';

72 const box = const Box(c);

73 Expect.isTrue(identical(const Box('abc'), box));

74 }

75

76 testComplextConstLiterals() {

77 Expect.isTrue(identical(const [1, 2, 3], const [1, 2, 3]));

78 Expect.isTrue(identical(const [1, 2, 3], list123));

79 Expect.isTrue(identical(const {'a': 'b', 'b': 'c'}, const {'a': 'b', 'b': 'c'} ));

80 Expect.isTrue(identical(const {'a': 'b', 'b': 'c'}, mapABC));

81

82 Expect.isTrue(mapABC['a'] == 'b');

83 Expect.isTrue(mapABC['b'] == 'c');

84 Expect.isTrue(mapABC.length == 2);

85

86 Expect.isTrue(list123[0] == 1);

87 Expect.isTrue(list123[1] == 2);

88 Expect.isTrue(list123[2] == 3);

89 Expect.isTrue(list123.length == 3);

90 }

91

92 main() {

93 testConstantExpressions();

94 testConstantFieldValues();

95 testConstantFunctionParameters();

96 testConstantSwitchExpressions();

97 testComplextConstLiterals();

98 testConstantExpressions();

99 testConstantLocalVariables();

100 }

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