mirror of
https://github.com/status-im/nim-stew.git
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43 lines
748 B
Nim
43 lines
748 B
Nim
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import
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../stew/conv
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type
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Obj = object
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v: int
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HasFrm = object
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v: int
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HasTo = object
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v: int
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HasTryFrom = object
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v: int
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HasTryTo = object
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v: int
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template frm(T: type HasFrm, o: Obj, tag = Canonical): T = T(v: o.v)
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let o = Obj(v: 42)
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let
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hft = o.to(HasFrm)
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hff = HasFrm.frm(o)
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hftf = HasFrm.tryFrm(o)
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hftt = o.tryTo(HasFrm)
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doAssert hff.v == o.v
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doAssert hftf.get().v == o.v
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doAssert hft.v == o.v
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doAssert hftt.get().v == o.v
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doAssert (string.frm(42) == "42")
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doAssert string.tryFrm(42)[] == "42"
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doAssert 42.to(string) == "42"
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doAssert 42.tryTo(string)[] == "42"
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doAssert string.frm(10, asHex(4)) == "000a"
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doAssert 10.to(string, asHex(int16)) == "000a"
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doAssert 10'i16.to(string, asHex()) == "000a"
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