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609ceffe58
enum Color { Red, Green, Blue } enum Status { Ok = 200, NotFound = 404 }
Color.Red, Color(n) (checked), int(c), == and != only, printed by name, usable as
map keys and struct fields, with methods (fn Color.next()).
match value { Red, Green -> ... Blue -> ... else -> ... } as a statement, or as an
expression that gives a value. Works on enums, whole numbers, chars, text and bools;
a match on an enum has to handle every variant or end with else, and says which are
missing. A bare variant name (Red) is enough inside a match on an enum.
Only the self-hosted compiler has them; tests/new holds their tests, tests/run stays what
the C++ compiler also runs. boot.sh: 31 passed.
14 lines
174 B
Text
14 lines
174 B
Text
Green Blue 2 418
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true false
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red blue false true
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fine odd
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Pixel(color: Blue, x: 3)
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[Red, Blue] 2
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a red one
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something else
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NotFound Ok
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medium
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2
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two!
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5 {Red: 2, Blue: 5}
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Green!
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