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fcf4197139
Had to add a new metaclass for Object since it now has its own static method so we can't just use Class as its metaclass. (We don't want *every* class to have a same(_,_) static method.)
41 lines
1.2 KiB
Plaintext
41 lines
1.2 KiB
Plaintext
// Value types compare by value.
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IO.print(Object.same(true, true)) // expect: true
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IO.print(Object.same(true, false)) // expect: false
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IO.print(Object.same(null, null)) // expect: true
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IO.print(Object.same(1 + 2, 2 + 1)) // expect: true
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IO.print(Object.same(1 + 2, 2 + 2)) // expect: false
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IO.print(Object.same(1..2, 1..2)) // expect: true
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IO.print(Object.same(1..2, 1..3)) // expect: false
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IO.print(Object.same("ab", "a" + "b")) // expect: true
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IO.print(Object.same("ab", "a" + "c")) // expect: false
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// Different types are never the same.
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IO.print(Object.same(null, false)) // expect: false
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IO.print(Object.same(true, 2)) // expect: false
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IO.print(Object.same(1..2, 2)) // expect: false
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IO.print(Object.same("1", 1)) // expect: false
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// Classes compare by identity.
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IO.print(Object.same(Bool, Num)) // expect: false
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IO.print(Object.same(Bool, Bool)) // expect: true
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// Other types compare by identity.
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class Foo {}
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var foo = new Foo
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IO.print(Object.same(foo, foo)) // expect: true
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IO.print(Object.same(foo, new Foo)) // expect: false
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// Ignores == operators.
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class Bar {
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==(other) { true }
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}
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var bar = new Bar
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IO.print(Object.same(bar, bar)) // expect: true
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IO.print(Object.same(bar, new Bar)) // expect: false
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