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deque-blog/SchemaValueExample.idr

Last active September 1, 2017 12:45
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SchemaValueExample.idr
birthDay : Event
birthDay = MkEvent "Happy BirthDay" [IntVar, StrCst " years old, ", StrVar]
-- In the REPL:
> logEvent birthDay [IntVal 32, StrVal "Quentin"] -- Values match the placeholder expected types
Just "Happy BirthDay: 32 years old, Quentin"
> logEvent birthDay [StrVal "Quentin", IntVal 32] -- Wrong placeholder types (inverted)
Nothing
> logEvent birthDay [IntVal 32] -- Missing placeholder value
Nothing
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