7297613900
This resulted in a codegen error in C++ mode, because the generic types were not defined in modules where calls requiring downcasts were used (generating a downcast forces the inclusion of the full definition of the involved types).
24 lines
498 B
Nim
24 lines
498 B
Nim
discard """
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output: "seq[float]\n0"
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targets: "c cpp"
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"""
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# https://github.com/nim-lang/Nim/issues/5602
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import typetraits, module_with_generics
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type
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Foo[T] = object of RootObj
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Bar[T] = object of Foo[seq[T]]
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proc p[T](f: Foo[T]): T =
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echo T.name
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var s: Bar[float]
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echo p(s).len # the bug was: p(s) should return seq[float], but returns float instead
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# Test overloading and code generation when
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# downcasting is required for generic types:
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var d = makeDerived(10)
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setBaseValue(d, 20)
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