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first version of ropes.nim with unsafeNew (broken)

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Araq 2012-12-02 00:44:29 +01:00
commit 76885c754a
6 changed files with 110 additions and 63 deletions
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15
compiler/ccgexprs.nim
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@ -933,22 +933,31 @@ proc genNew(p: BProc, e: PNode) =
var
a, b: TLoc
reftype, bt: PType
sizeExpr: PRope
refType = skipTypes(e.sons[1].typ, abstractVarRange)
InitLocExpr(p, e.sons[1], a)
initLoc(b, locExpr, a.t, OnHeap)
# 'genNew' also handles 'unsafeNew':
if e.len == 3:
var se: TLoc
InitLocExpr(p, e.sons[2], se)
sizeExpr = se.rdLoc
else:
sizeExpr = ropef("sizeof($1)",
getTypeDesc(p.module, skipTypes(reftype.sons[0], abstractRange)))
let args = [getTypeDesc(p.module, reftype),
genTypeInfo(p.module, refType),
getTypeDesc(p.module, skipTypes(reftype.sons[0], abstractRange))]
sizeExpr]
if a.s == OnHeap and optRefcGc in gGlobalOptions:
# use newObjRC1 as an optimization; and we don't need 'keepAlive' either
if canFormAcycle(a.t):
lineCg(p, cpsStmts, "if ($1) #nimGCunref($1);$n", a.rdLoc)
else:
lineCg(p, cpsStmts, "if ($1) #nimGCunrefNoCycle($1);$n", a.rdLoc)
b.r = ropecg(p.module, "($1) #newObjRC1($2, sizeof($3))", args)
b.r = ropecg(p.module, "($1) #newObjRC1($2, $3)", args)
lineCg(p, cpsStmts, "$1 = $2;$n", a.rdLoc, b.rdLoc)
else:
b.r = ropecg(p.module, "($1) #newObj($2, sizeof($3))", args)
b.r = ropecg(p.module, "($1) #newObj($2, $3)", args)
genAssignment(p, a, b, {needToKeepAlive}) # set the object type:
bt = skipTypes(refType.sons[0], abstractRange)
genObjectInit(p, cpsStmts, bt, a, false)