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Merge pull request #2437 from Araq/underscore-tuple-unpack

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Implements #2154.
This commit is contained in:
Andreas Rumpf 2015-04-24 12:32:57 +02:00
commit 3e000f4e36
4 changed files with 44 additions and 2 deletions
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9
compiler/semstmts.nim
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@ -369,6 +369,10 @@ proc addToVarSection(c: PContext; result: var PNode; orig, identDefs: PNode) =
else:
result.add identDefs
proc isDiscardUnderscore(n: PNode): bool =
if n.kind != nkIdent: return false
return n.ident.s == "_"
proc semVarOrLet(c: PContext, n: PNode, symkind: TSymKind): PNode =
var b: PNode
result = copyNode(n)
@ -432,7 +436,10 @@ proc semVarOrLet(c: PContext, n: PNode, symkind: TSymKind): PNode =
for j in countup(0, length-3):
var v = semIdentDef(c, a.sons[j], symkind)
if sfGenSym notin v.flags: addInterfaceDecl(c, v)
if sfGenSym notin v.flags and
not isDiscardUnderscore(a.sons[j]): addInterfaceDecl(c, v)
if isDiscardUnderscore(a.sons[j]):
v.flags.incl(sfGenSym)
when oKeepVariableNames:
if c.inUnrolledContext > 0: v.flags.incl(sfShadowed)
else: