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authorAndreas Rumpf <rumpf_a@web.de>2018-06-06 22:04:54 +0200
committerGitHub <noreply@github.com>2018-06-06 22:04:54 +0200
commitbf394ed1a1d27d8d38d4bc386946e3442736cd75 (patch)
tree1a85620c296d890a1a8096876ac4b500e942854c /compiler/sigmatch.nim
parent68378c857dbb4cc6f4919501f42bd2995b31db03 (diff)
parent4262a85653e22e430824c92db35c5ee3bcecf954 (diff)
downloadNim-bf394ed1a1d27d8d38d4bc386946e3442736cd75.tar.gz
Merge pull request #7550 from jangko/fix4799
fixes #4799, varargs now can accept polymorphic types
Diffstat (limited to 'compiler/sigmatch.nim')
-rw-r--r--compiler/sigmatch.nim8
1 files changed, 8 insertions, 0 deletions
diff --git a/compiler/sigmatch.nim b/compiler/sigmatch.nim
index 41cac2a4a..fcfdda8bb 100644
--- a/compiler/sigmatch.nim
+++ b/compiler/sigmatch.nim
@@ -2013,6 +2013,14 @@ proc paramTypesMatchAux(m: var TCandidate, f, a: PType,
           if r == isGeneric:
             result.typ = getInstantiatedType(c, arg, m, base(f))
           m.baseTypeMatch = true
+        # bug #4799, varargs accepting subtype relation object
+        elif r == isSubtype:
+          inc(m.subtypeMatches)
+          if f.kind == tyTypeDesc:
+            result = arg
+          else:
+            result = implicitConv(nkHiddenSubConv, f, arg, m, c)
+          m.baseTypeMatch = true
         else:
           result = userConvMatch(c, m, base(f), a, arg)
           if result != nil: m.baseTypeMatch = true