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30cf33f04d
**TODO** - [x] fixes changelog With the new option `nimPreviewVtables`, `methods` are confined in the same module where the type of the first parameter is defined - [x] make it opt in after CI checks its feasibility ## In the following-up PRs - [ ] in the following PRs, refactor code into a more efficient one - [ ] cpp needs special treatments since it cannot embed array in light of the preceding limits: ref https://github.com/nim-lang/Nim/pull/20977#discussion_r1035528927; we can support cpp backends with vtable implementations later on the comprise that uses indirect vtable access --------- Co-authored-by: Andreas Rumpf <rumpf_a@web.de>
24 lines
432 B
Nim
24 lines
432 B
Nim
discard """
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matrix: "--mm:arc; --mm:refc"
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output: '''
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newDNode base
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'''
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"""
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type
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SNodeAny = ref object of RootObj
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SNode[T] = ref object of SNodeAny
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m: T
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DNode[T] = ref object
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method getStr(s: SNode[float]): string {.base.} = "blahblah"
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method newDNode(s: SNodeAny) {.base.} =
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echo "newDNode base"
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method newDNode[T](s: SNode[T]) =
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echo "newDNode generic"
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let m = SNode[float]()
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let s = SNodeAny(m)
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newDnode(s) |