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fix #19266; allow reassign discriminant field (#19567)

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* add inUncheckedAssignSection

* add one more test
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flywind 2022-02-26 03:33:28 +08:00 • committed by GitHub
commit 9c17a32e0e
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4 changed files with 39 additions and 2 deletions
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16
compiler/ccgexprs.nim
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@ -2932,7 +2932,21 @@ proc expr(p: BProc, n: PNode, d: var TLoc) =
nkFromStmt, nkTemplateDef, nkMacroDef, nkStaticStmt:
discard
of nkPragma: genPragma(p, n)
of nkPragmaBlock: expr(p, n.lastSon, d)
of nkPragmaBlock:
var inUncheckedAssignSection = 0
let pragmaList = n[0]
for pi in pragmaList:
if whichPragma(pi) == wCast:
case whichPragma(pi[1])
of wUncheckedAssign:
inUncheckedAssignSection = 1
else:
discard
inc p.inUncheckedAssignSection, inUncheckedAssignSection
expr(p, n.lastSon, d)
dec p.inUncheckedAssignSection, inUncheckedAssignSection
of nkProcDef, nkFuncDef, nkMethodDef, nkConverterDef:
if n[genericParamsPos].kind == nkEmpty:
var prc = n[namePos].sym