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fixes #13583; enforce void for nkWhileStmt (#20947)

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* fixes #13583; enfore void for nkWhileStmt

* one more case
This commit is contained in:
ringabout
2022-11-29 13:41:38 +08:00
committed by GitHub
parent b5a008bac8
commit d4afa53fd5
2 changed files with 39 additions and 0 deletions
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5
compiler/semstmts.nim
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@@ -38,6 +38,8 @@ const
errPragmaOnlyInHeaderOfProcX = "pragmas are only allowed in the header of a proc; redefinition of $1"
errCannotAssignToGlobal = "cannot assign local to global variable"
proc implicitlyDiscardable(n: PNode): bool
proc semDiscard(c: PContext, n: PNode): PNode =
result = n
checkSonsLen(n, 1, c.config)
@@ -101,6 +103,9 @@ proc semWhile(c: PContext, n: PNode; flags: TExprFlags): PNode =
result.typ = c.enforceVoidContext
elif efInTypeof in flags:
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