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destructors: preparations for upcoming changes

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This commit is contained in:
Araq 2017-10-17 12:46:49 +02:00
commit 45d74f4081
8 changed files with 27 additions and 8 deletions
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12
compiler/semasgn.nim
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@ -109,7 +109,7 @@ proc considerOverloadedOp(c: var TLiftCtx; t: PType; body, x, y: PNode): bool =
styleCheckUse(c.info, op)
body.add newOpCall(op, x)
result = true
of attachedAsgn:
of attachedAsgn, attachedSink:
if tfHasAsgn in t.flags:
var op: PSym
if sameType(t, c.asgnForType):
@ -285,3 +285,13 @@ proc getAsgnOrLiftBody(c: PContext; typ: PType; info: TLineInfo): PSym =
proc overloadedAsgn(c: PContext; dest, src: PNode): PNode =
let a = getAsgnOrLiftBody(c, dest.typ, dest.info)
result = newAsgnCall(c, a, dest, src)
proc liftTypeBoundOps*(c: PContext; typ: PType) =
## In the semantic pass this is called in strategic places
## to ensure we lift assignment, destructors and moves properly.
## Since this is done in the sem* routines generics already have
## been resolved for us and do not complicate the logic any further.
## We have to ensure that the 'tfHasDesctructor' flags bubbles up
## in the generic instantiations though.
## The later 'destroyer' pass depends on it.
if not newDestructors or not hasDestructor(typ): return