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tuple unpacking works in a non-var/let context

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This commit is contained in:
Araq 2015-08-21 12:31:55 +02:00
commit bfd2fd67f9
5 changed files with 69 additions and 2 deletions
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8
compiler/semexprs.nim
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@ -1282,6 +1282,14 @@ proc semAsgn(c: PContext, n: PNode): PNode =
result = buildOverloadedSubscripts(n.sons[0], getIdent"{}=")
add(result, n[1])
return semExprNoType(c, result)
of nkPar:
if a.len >= 2:
# unfortunately we need to rewrite ``(x, y) = foo()`` already here so
# that overloading of the assignment operator still works. Usually we
# prefer to do these rewritings in transf.nim:
return semStmt(c, lowerTupleUnpackingForAsgn(n, c.p.owner))
else:
a = semExprWithType(c, a, {efLValue})
else:
a = semExprWithType(c, a, {efLValue})
n.sons[0] = a