tests/language/src/MethodBindingTest.dart - Issue 10248007: test rename overhaul: step 8 - language tests

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Issue 10248007: test rename overhaul: step 8 - language tests (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart

Patch Set: Created 8 years, 7 months ago

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1 // Copyright (c) 2011, 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 // Bind a method to a variable that can be invoked as a function

6

7 class A {

8 int a;

9

10 static var func;

11

12 A(this.a) { }

13

14 static foo() { return 4; }

15

16 bar() { return a; }

17

18 int baz() { return a; }

19

20 getThis() { return this.bar; }

21

22 getNoThis() { return bar; }

23

24 methodArgs(arg) { return arg + a; }

25

26 selfReference () { return selfReference; }

27

28 invokeBaz() { return (baz)(); }

29

30 invokeBar(var obj) { return (obj.bar)(); }

31

32 invokeThisBar() { return (this.bar)(); }

33

34 implicitStaticRef() { return foo; }

35 }

36

37 class B {

38 static foo() { return -1; }

39 }

40

41 class C {

42 C() { }

43 var f;

44 }

45

46 topLevel99() {

47 return 99;

48 }

49

50 var topFunc;

51

52 class D extends A {

53 D(a): super(a) { }

54 getSuper() { return super.bar; }

55 }

56

57 class MethodBindingTest {

58 static test() {

59

60 // Create closure from global

61 Expect.equals(99, topLevel99());

62 Function f99 = topLevel99;

63 Expect.equals(99, f99());

64

65 // Invoke closure through a global

66 topFunc = f99;

67 Expect.equals(99, topFunc());

68

69 // Create closure from static method

70 Function f4 = A.foo;

71 Expect.equals(4, f4());

72

73 // Create closure from instance method

74 var o5 = new A(5);

75 Function f5 = o5.bar;

76 Expect.equals(5, f5());

77

78 // Assign closure to field and invoke it

79 var c = new C();

80 c.f = () => "success";

81 Expect.equals("success", c.f());

82

83 // referencing instance method with explicit 'this' qualiier

84 var o6 = new A(6);

85 var f6 = o6.getThis();

86 Expect.equals(6, f6());

87

88 // referencing an instance method with no qualifier

89 var o7 = new A(7);

90 var f7 = o7.getNoThis();

91 Expect.equals(7, f7());

92

93 // bind a method that takes arguments

94 var o8 = new A(8);

95 Function f8 = o8.methodArgs;

96 Expect.equals(9, f8(1));

97

98 // Self referential method

99 var o9 = new A(9);

100 Function f9 = o9.selfReference;

101

102 // invoking a known method as if it were a bound closure...

103 var o10 = new A(10);

104 Expect.equals(10, o10.invokeBaz());

105

106 // invoking a known method as if it were a bound closure...

107 var o11 = new A(11);

108 Expect.equals(10, o11.invokeBar(o10));

109

110 // invoking a known method as if it were a bound closure...

111 var o12 = new A(12);

112 Expect.equals(12, o12.invokeThisBar());

113

114 // bind to a static variable with no explicit class qualifier

115 var o13 = new A(13);

116 Function f13 = o13.implicitStaticRef();

117 Expect.equals(4, f13());

118

119 var o14 = new D(14);

120 Function f14 = o14.getSuper();

121 Expect.equals(14, f14());

122

123 // Assign static field to a function and invoke it.

124 A.func = A.foo;

125 Expect.equals(4, A.func());

126

127 // bind a function that is possibly native in Javascript.

128 String o15 = 'hithere';

129 var f15 = o15.substring;

130 Expect.equals('i', f15(1, 2));

131

132 var o16 = 'hithere';

133 var f16 = o16.substring;

134 Expect.equals('i', f16(1, 2));

135

136 var f17 = 'hithere'.substring;

137 Expect.equals('i', f17(1, 2));

138 }

139

140 static testMain() {

141 test();

142 }

143 }

144

145 main() {

146 MethodBindingTest.testMain();

147 }

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