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Fix recursive generic typed defs (#18809)

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Jason Beetham 2021-09-06 01:43:26 -06:00 • committed by GitHub
commit 7ae52d7791
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2 changed files with 13 additions and 1 deletions
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tests/generics/trecursivegenerics.nim Normal file
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block: # Replicates #18728
type
FlipFlop[A, B] = ref object
next: FlipFlop[B, A]
Trinary[A, B, C] = ref object
next: Trinary[B, C, A]
assert typeof(FlipFlop[int, string]().next) is FlipFlop[string, int]
assert typeof(FlipFlop[string, int]().next) is FlipFlop[int, string]
assert typeof(Trinary[int, float, string]().next) is Trinary[float, string, int]
assert typeof(Trinary[int, float, string]().next.next) is Trinary[string, int, float]