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fixes #25632; errors incompatibility between {.error.} and {.exportc} pragmas in semProcAux (#25639)

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fixes #25632
fixes #25631
fixes #25630

This pull request introduces a compatibility check between the
`{.error.}` and `{.exportc.}` pragmas in procedure declarations.
Specifically, it prevents a procedure from being marked with both
pragmas at the same time, as this combination is now considered invalid.

Pragma compatibility enforcement:

* Added a check in `semProcAux` (in `compiler/semstmts.nim`) to emit a
local error if a procedure is declared with both `{.error.}` and
`{.exportc.}` pragmas, preventing their incompatible usage.

(cherry picked from commit fb31e86537)
This commit is contained in:
ringabout
2026-04-01 05:32:24 +08:00
committed by narimiran
parent 53c31aef67
commit 39285aa760
1 changed files with 3 additions and 0 deletions
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3
compiler/semstmts.nim
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@@ -2536,6 +2536,9 @@ proc semProcAux(c: PContext, n: PNode, kind: TSymKind,
if not hasProto:
implicitPragmas(c, s, n.info, validPragmas)
if {sfError, sfExportc} * s.flags == {sfError, sfExportc}:
localError(c.config, n.info, "{.error.} and {.exportc.} pragmas are incompatible")
if n[pragmasPos].kind != nkEmpty and sfBorrow notin s.flags:
setEffectsForProcType(c.graph, s.typ, n[pragmasPos], s)
s.typ.flags.incl tfEffectSystemWorkaround