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334f96c05a
fixes #4554, fixes #10900, fixes #13843, fixes #19471, fixes #19517 Instead of matching generic converters to their arguments using the full call match bindings, a new match is created for them (from which the bindings are used to instantiate the converter return type). Then when instantiating generic converters, they are matched to their argument again to get their bindings again instead of using the call bindings. This prevents generic converters which match more than once from interfering with each other's bindings.
11 lines
243 B
Nim
11 lines
243 B
Nim
# issue #4554 comment
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type Obj[T] = object
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b: T
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converter test1[T](a: Obj[T]): T = a.b
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proc doStuff(a: int, b: float) = discard
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doStuff(Obj[int](b: 1), Obj[float](b: 1.2)) # Error: type mismatch: got <Obj[system.int], Obj[system.float]>
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