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