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fix #959

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Variable declarations using a type class will be subject to type inference similar to the one
already present in type coercions and the return type inference.
This commit is contained in:
Zahary Karadjov 2014-09-04 23:50:00 +03:00
commit 9a3963f51b
3 changed files with 27 additions and 6 deletions
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11
compiler/semstmts.nim
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@ -350,9 +350,14 @@ proc semVarOrLet(c: PContext, n: PNode, symkind: TSymKind): PNode =
var def: PNode
if a.sons[length-1].kind != nkEmpty:
def = semExprWithType(c, a.sons[length-1], {efAllowDestructor})
# BUGFIX: ``fitNode`` is needed here!
# check type compability between def.typ and typ:
if typ != nil: def = fitNode(c, typ, def)
if typ != nil:
if typ.isMetaType:
def = inferWithMetaType(c, typ, def)
typ = def.typ
else:
# BUGFIX: ``fitNode`` is needed here!
# check type compability between def.typ and typ
def = fitNode(c, typ, def)
else:
typ = skipIntLit(def.typ)
if typ.kind in {tySequence, tyArray, tySet} and