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introduce tfHasOwned for fast must-move checkings; removed tfAcyclic as the GC has ignored this hint for quite some time now

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This commit is contained in:
Andreas Rumpf 2019-03-05 17:29:48 +01:00
commit 4be36d77f6
9 changed files with 30 additions and 63 deletions
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6
compiler/semtypinst.nim
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@ -16,16 +16,12 @@ const
tfInstClearedFlags = {tfHasMeta, tfUnresolved}
proc checkPartialConstructedType(conf: ConfigRef; info: TLineInfo, t: PType) =
if tfAcyclic in t.flags and skipTypes(t, abstractInst).kind != tyObject:
localError(conf, info, "invalid pragma: acyclic")
elif t.kind in {tyVar, tyLent} and t.sons[0].kind in {tyVar, tyLent}:
if t.kind in {tyVar, tyLent} and t.sons[0].kind in {tyVar, tyLent}:
localError(conf, info, "type 'var var' is not allowed")
proc checkConstructedType*(conf: ConfigRef; info: TLineInfo, typ: PType) =
var t = typ.skipTypes({tyDistinct})
if t.kind in tyTypeClasses: discard
elif tfAcyclic in t.flags and skipTypes(t, abstractInst).kind != tyObject:
localError(conf, info, "invalid pragma: acyclic")
elif t.kind in {tyVar, tyLent} and t.sons[0].kind in {tyVar, tyLent}:
localError(conf, info, "type 'var var' is not allowed")
elif computeSize(conf, t) == szIllegalRecursion: