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sigmatch: hotfix [backport] (#15565)

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(cherry picked from commit c664fb2843)
This commit is contained in:
Andreas Rumpf
2020-10-14 09:55:47 +02:00
committed by narimiran
parent 4088d7f2ae
commit f6ada8874a
1 changed files with 2 additions and 2 deletions
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4
compiler/sigmatch.nim
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@@ -1089,7 +1089,7 @@ proc typeRel(c: var TCandidate, f, aOrig: PType,
let x = typeRel(c, f, branch, flags + {trDontBind})
if x == isNone: return isNone
if x < result: result = x
return
return result
of tyAnd:
# XXX: deal with the current dual meaning of tyGenericParam
@@ -1423,7 +1423,7 @@ proc typeRel(c: var TCandidate, f, aOrig: PType,
let ff = rootf.sons[i]
let aa = roota.sons[i]
let res = typeRel(c, ff, aa, nextFlags)
if res != isEqual: result = isGeneric
if res != isNone and res != isEqual: result = isGeneric
if res notin {isEqual, isGeneric}:
if trNoCovariance notin flags and ff.kind == aa.kind:
let paramFlags = rootf.base.sons[i-1].flags