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fixes #1511

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This commit is contained in:
Araq 2014-09-03 19:54:20 +02:00
commit e093f45756
1 changed files with 17 additions and 14 deletions
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31
compiler/semstmts.nim
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@ -22,21 +22,24 @@ proc semDiscard(c: PContext, n: PNode): PNode =
proc semBreakOrContinue(c: PContext, n: PNode): PNode =
result = n
checkSonsLen(n, 1)
if n.sons[0].kind != nkEmpty:
var s: PSym
case n.sons[0].kind
of nkIdent: s = lookUp(c, n.sons[0])
of nkSym: s = n.sons[0].sym
else: illFormedAst(n)
if s.kind == skLabel and s.owner.id == c.p.owner.id:
var x = newSymNode(s)
x.info = n.info
incl(s.flags, sfUsed)
n.sons[0] = x
suggestSym(x.info, s)
if n.sons[0].kind != nkEmpty:
if n.kind != nkContinueStmt:
var s: PSym
case n.sons[0].kind
of nkIdent: s = lookUp(c, n.sons[0])
of nkSym: s = n.sons[0].sym
else: illFormedAst(n)
if s.kind == skLabel and s.owner.id == c.p.owner.id:
var x = newSymNode(s)
x.info = n.info
incl(s.flags, sfUsed)
n.sons[0] = x
suggestSym(x.info, s)
else:
localError(n.info, errInvalidControlFlowX, s.name.s)
else:
localError(n.info, errInvalidControlFlowX, s.name.s)
elif (c.p.nestedLoopCounter <= 0) and (c.p.nestedBlockCounter <= 0):
localError(n.info, errGenerated, "'continue' cannot have a label")
elif (c.p.nestedLoopCounter <= 0) and (c.p.nestedBlockCounter <= 0):
localError(n.info, errInvalidControlFlowX,
renderTree(n, {renderNoComments}))