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Destructor lifting fixes #11149 (#11163)

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* fixes #11149

* add test
This commit is contained in:
cooldome 2019-05-04 22:34:37 +02:00 • committed by Andreas Rumpf
commit d3db189eb4
4 changed files with 77 additions and 10 deletions
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17
compiler/liftdestructors.nim
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@ -593,12 +593,13 @@ proc createTypeBoundOps(c: PContext; orig: PType; info: TLineInfo) =
if orig == nil or {tfCheckedForDestructor, tfHasMeta} * orig.skipTypes({tyAlias}).flags != {}: return
incl orig.flags, tfCheckedForDestructor
let h = sighashes.hashType(orig, {CoType, CoConsiderOwned})
let h = sighashes.hashType(orig, {CoType, CoConsiderOwned, CoDistinct})
var canon = c.graph.canonTypes.getOrDefault(h)
var overwrite = false
if canon == nil:
c.graph.canonTypes[h] = orig
canon = orig
let typ = orig.skipTypes({tyGenericInst, tyAlias})
c.graph.canonTypes[h] = typ
canon = typ
elif canon != orig:
overwrite = true
@ -608,17 +609,17 @@ proc createTypeBoundOps(c: PContext; orig: PType; info: TLineInfo) =
# 3. we have a lifted destructor.
# 4. We have a custom destructor.
# 5. We have a (custom) generic destructor.
let typ = canon.skipTypes({tyGenericInst, tyAlias})
# we generate the destructor first so that other operators can depend on it:
for k in attachedDestructor..attachedSink:
if typ.attachedOps[k] == nil:
discard produceSym(c, typ, k, info)
if canon.attachedOps[k] == nil:
discard produceSym(c, canon, k, info)
else:
inst(typ.attachedOps[k], typ)
inst(canon.attachedOps[k], canon)
if overwrite:
for k in attachedDestructor..attachedSink:
orig.attachedOps[k] = typ.attachedOps[k]
orig.attachedOps[k] = canon.attachedOps[k]
if not isTrival(orig.destructor):
#or not isTrival(orig.assignment) or