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fix #15836 proc arg return type auto unexpectly match proc with concr… (#21044)

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fix #15836 proc arg return type auto unexpectly match proc with concrete type
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Bung 2022-12-10 01:01:13 +08:00 • committed by GitHub
commit 0cd9bdcf9f
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9 changed files with 23 additions and 12 deletions
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2
tests/proc/tillegalreturntype.nim
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@ -1,5 +1,5 @@
discard """
cmd: "nim check $file"
cmd: "nim check --hints:off $file"
errormsg: ""
nimout: '''
tillegalreturntype.nim(11, 11) Error: return type 'typed' is only valid for macros and templates

11
tests/types/t15836.nim Normal file
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@ -0,0 +1,11 @@
discard """
errormsg: "type mismatch: got <string> but expected 'int'"
line: 11
"""
proc takesProc[T](x: T, f: proc(x: T): int) =
echo f(x) + 2
takesProc(1, proc (a: int): int = 2) # ok, prints 4
takesProc(1, proc (a: auto): auto = 2) # ok, prints 4
takesProc(1, proc (a: auto): auto = "uh uh") # prints garbage