jyapayne/Nim
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

improvements for 'not nil' checking

Browse source
This commit is contained in:
Araq 2013-06-13 01:40:11 +02:00
commit d4c91bbd85
9 changed files with 99 additions and 27 deletions
Download patch file Download diff file Expand all files Collapse all files

14
compiler/ast.nim
View file

@ -1175,10 +1175,18 @@ proc newSons(father: PNode, length: int) =
setlen(father.sons, length)
proc propagateToOwner*(owner, elem: PType) =
owner.flags = owner.flags + (elem.flags * {tfNeedsInit, tfHasShared,
tfHasMeta, tfHasGCedMem})
const HaveTheirOwnEmpty = {tySequence, tySet}
owner.flags = owner.flags + (elem.flags * {tfHasShared, tfHasMeta,
tfHasGCedMem})
if tfNotNil in elem.flags:
owner.flags.incl tfNeedsInit
if owner.kind in {tyGenericInst, tyGenericBody, tyGenericInvokation}:
owner.flags.incl tfNotNil
elif owner.kind notin HaveTheirOwnEmpty:
owner.flags.incl tfNeedsInit
if tfNeedsInit in elem.flags:
if owner.kind in HaveTheirOwnEmpty: nil
else: owner.flags.incl tfNeedsInit
if tfShared in elem.flags:
owner.flags.incl tfHasShared