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VM: minor fixes to make lexim work

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This commit is contained in:
Araq 2015-04-20 11:36:13 +02:00
commit 7be092bba5
4 changed files with 75 additions and 67 deletions
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9
compiler/vm.nim
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@ -1043,7 +1043,14 @@ proc rawExecute(c: PCtx, start: int, tos: PStackFrame): TFullReg =
decodeB(rkNode)
let newLen = regs[rb].intVal.int
if regs[ra].node.isNil: stackTrace(c, tos, pc, errNilAccess)
else: setLen(regs[ra].node.sons, newLen)
else:
let oldLen = regs[ra].node.len
setLen(regs[ra].node.sons, newLen)
if oldLen < newLen:
# XXX This is still not entirely correct
# set to default value:
for i in oldLen .. <newLen:
regs[ra].node.sons[i] = newNodeI(nkEmpty, c.debug[pc])
of opcSwap:
let rb = instr.regB
if regs[ra].kind == regs[rb].kind: