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enforce void for nkWhileStmt [backport: 2.0] (#21170)

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enforce void for nkWhileStmt
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ringabout 2022-12-24 17:37:32 +08:00 • committed by GitHub
commit 9323cb7b2a
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2 changed files with 11 additions and 1 deletions
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1
compiler/semstmts.nim
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@ -105,7 +105,6 @@ proc semWhile(c: PContext, n: PNode; flags: TExprFlags): PNode =
result.typ = n[1].typ
elif implicitlyDiscardable(n[1]):
result[1].typ = c.enforceVoidContext
result.typ = c.enforceVoidContext
proc semProc(c: PContext, n: PNode): PNode

11
tests/discard/tdiscardable.nim
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@ -99,3 +99,14 @@ block: # bug #13583
let t = test
doAssert t() == 12
block:
proc bar(): string {.discardable.} =
"15"
proc foo(): int =
while true:
raise newException(ValueError, "check")
12
doAssertRaises(ValueError):
doAssert foo() == 12