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implements https://github.com/nim-lang/RFCs/issues/407 (#18793)

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Andreas Rumpf 2021-09-03 21:52:24 +02:00 • committed by GitHub
commit cddf8ec6f6
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9 changed files with 103 additions and 20 deletions
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14
compiler/semstmts.nim
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@ -2223,7 +2223,21 @@ proc semPragmaBlock(c: PContext, n: PNode): PNode =
checkSonsLen(n, 2, c.config)
let pragmaList = n[0]
pragma(c, nil, pragmaList, exprPragmas, isStatement = true)
var inUncheckedAssignSection = 0
for p in pragmaList:
if whichPragma(p) == wCast:
case whichPragma(p[1])
of wGcSafe, wNoSideEffect, wTags, wRaises:
discard "handled in sempass2"
of wUncheckedAssign:
inUncheckedAssignSection = 1
else:
localError(c.config, p.info, "invalid pragma block: " & $p)
inc c.inUncheckedAssignSection, inUncheckedAssignSection
n[1] = semExpr(c, n[1])
dec c.inUncheckedAssignSection, inUncheckedAssignSection
result = n
result.typ = n[1].typ
for i in 0..<pragmaList.len: