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ARC: use the new .cursor annotation for 'up' pointers

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Araq 2019-11-13 11:23:07 +01:00 • committed by Andreas Rumpf
commit 3020e49b75
2 changed files with 7 additions and 3 deletions
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8
compiler/lambdalifting.nim
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@ -347,8 +347,7 @@ proc createUpField(c: var DetectionPass; dest, dep: PSym; info: TLineInfo) =
# with cycles properly, so it's better to produce a weak ref (=ptr) here.
# This seems to be generally correct but since it's a bit risky it's disabled
# for now.
let fieldType = if isDefined(c.graph.config, "nimCycleBreaker") or
c.graph.config.selectedGC == gcDestructors:
let fieldType = if isDefined(c.graph.config, "nimCycleBreaker"):
c.getEnvTypeForOwnerUp(dep, info) #getHiddenParam(dep).typ
else:
c.getEnvTypeForOwner(dep, info)
@ -360,9 +359,14 @@ proc createUpField(c: var DetectionPass; dest, dep: PSym; info: TLineInfo) =
if upField != nil:
if upField.typ.skipTypes({tyOwned, tyRef, tyPtr}) != fieldType.skipTypes({tyOwned, tyRef, tyPtr}):
localError(c.graph.config, dep.info, "internal error: up references do not agree")
if c.graph.config.selectedGC == gcDestructors and sfCursor notin upField.flags:
localError(c.graph.config, dep.info, "internal error: up reference is not a .cursor")
else:
let result = newSym(skField, upIdent, obj.owner, obj.owner.info)
result.typ = fieldType
if c.graph.config.selectedGC == gcDestructors:
result.flags.incl sfCursor
rawAddField(obj, result)
discard """