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fixes #2297, fixes #2946

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This commit is contained in:
Araq 2015-06-18 15:05:44 +02:00
commit 17cace280c
6 changed files with 127 additions and 19 deletions
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20
compiler/lowerings.nim
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@ -63,6 +63,26 @@ proc lowerTupleUnpacking*(n: PNode; owner: PSym): PNode =
if n.sons[i].kind == nkSym: v.addVar(n.sons[i])
result.add newAsgnStmt(n.sons[i], newTupleAccess(tempAsNode, i))
proc lowerSwap*(n: PNode; owner: PSym): PNode =
result = newNodeI(nkStmtList, n.info)
# note: cannot use 'skTemp' here cause we really need the copy for the VM :-(
var temp = newSym(skVar, getIdent(genPrefix), owner, n.info)
temp.typ = n.sons[1].typ
incl(temp.flags, sfFromGeneric)
var v = newNodeI(nkVarSection, n.info)
let tempAsNode = newSymNode(temp)
var vpart = newNodeI(nkIdentDefs, v.info, 3)
vpart.sons[0] = tempAsNode
vpart.sons[1] = ast.emptyNode
vpart.sons[2] = n[1]
addSon(v, vpart)
result.add(v)
result.add newFastAsgnStmt(n[1], n[2])
result.add newFastAsgnStmt(n[2], tempAsNode)
proc createObj*(owner: PSym, info: TLineInfo): PType =
result = newType(tyObject, owner)
rawAddSon(result, nil)