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bugfix: optimization of complex constant string concatenations

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This commit is contained in:
Araq 2012-02-17 02:16:33 +01:00
commit 97366d4419
7 changed files with 43 additions and 16 deletions
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10
compiler/transf.nim
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@ -588,13 +588,15 @@ proc transformCall(c: PTransf, n: PNode): PTransNode =
add(result, transform(c, n.sons[0]))
var j = 1
while j < sonsLen(n):
var a = n.sons[j]
var a = transform(c, n.sons[j]).pnode
inc(j)
if isConstExpr(a):
while (j < sonsLen(n)) and isConstExpr(n.sons[j]):
a = evalOp(op.magic, n, a, n.sons[j], nil)
while (j < sonsLen(n)):
let b = transform(c, n.sons[j]).pnode
if not isConstExpr(b): break
a = evalOp(op.magic, n, a, b, nil)
inc(j)
add(result, transform(c, a))
add(result, a.ptransnode)
if len(result) == 2: result = result[1]
elif n.sons[0].kind == nkSym and n.sons[0].sym.kind == skMethod:
# use the dispatcher for the call: