19 lines
593 B
Forth
19 lines
593 B
Forth
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module DiscriminatedUnions
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//The preceding code declares a discriminated union Shape,
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// which can have values of any of three cases: Rectangle, Circle, and Prism.
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// Each case has a different set of fields.
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type Shape =
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| Rectangle of width : float * length : float
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| Circle of radius : float
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| Prism of width : float * float * height : float
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let rect = Rectangle(length = 1.3, width = 10.0)
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let circ = Circle (1.0)
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let prism = Prism(5., 2.0, height = 3.0)
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type SizeUnion = Small | Medium | Large // union
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type ColorEnum = Red=5 | Yellow=7 | Blue=9 // enum
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