Lichen

Annotated tests/swap.py

627:05ad7964265c
2017-02-27 Paul Boddie Merged convenience macro changes.
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# Test attribute accesses with sequence assignments.
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class C:
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    a = 1; b = 2; c = 3
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# This cannot assign directly...
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print C.a, C.b, C.c                     # 1 2 3
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C.a, C.b, C.c = C.c, C.b, C.a
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print C.a, C.b, C.c                     # 3 2 1
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# This cannot assign directly...
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D = C
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C.a, C.b, C.c = D.c, D.b, D.a
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print C.a, C.b, C.c                     # 1 2 3
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# Test name accesses with sequence assignments.
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a = 1; b = 2; c = 3
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# This cannot assign directly...
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print a, b, c                           # 1 2 3
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a, b, c = c, b, a
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print a, b, c                           # 3 2 1
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# This can assign directly...
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d, e, f = c, b, a
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print d, e, f                           # 1 2 3
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# This can assign directly...
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a, (b, c) = d, (e, f)
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print a, b, c                           # 1 2 3
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# This cannot assign directly...
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(c, b), a = (a, b), c
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print a, b, c                           # 3 2 1