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fix #931 and few more tests

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This commit is contained in:
Zahary Karadjov 2014-02-18 20:04:58 +02:00
commit 0bbf6081d0
4 changed files with 17 additions and 17 deletions
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9
compiler/semtypinst.nim
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@ -220,7 +220,7 @@ proc handleGenericInvokation(cl: var TReplTypeVars, t: PType): PType =
# is difficult to handle:
var body = t.sons[0]
if body.kind != tyGenericBody: internalError(cl.info, "no generic body")
var header: PType = nil
var header: PType = t
# search for some instantiation here:
if cl.allowMetaTypes:
result = PType(idTableGet(cl.localCache, t))
@ -232,11 +232,13 @@ proc handleGenericInvokation(cl: var TReplTypeVars, t: PType): PType =
if x.kind == tyGenericParam:
x = lookupTypeVar(cl, x)
if x != nil:
if header == nil: header = instCopyType(cl, t)
if header == t: header = instCopyType(cl, t)
header.sons[i] = x
propagateToOwner(header, x)
else:
propagateToOwner(header, x)
if header != nil:
if header != t:
# search again after first pass:
result = searchInstTypes(header)
if result != nil: return
@ -244,6 +246,7 @@ proc handleGenericInvokation(cl: var TReplTypeVars, t: PType): PType =
header = instCopyType(cl, t)
result = newType(tyGenericInst, t.sons[0].owner)
result.flags = header.flags
# be careful not to propagate unnecessary flags here (don't use rawAddSon)
result.sons = @[header.sons[0]]
# ugh need another pass for deeply recursive generic types (e.g. PActor)