diff options
| -rw-r--r-- | compiler/sigmatch.nim | 5 | ||||
| -rw-r--r-- | tests/typerel/tclosure_nil_as_default.nim | 11 |
2 files changed, 15 insertions, 1 deletions
diff --git a/compiler/sigmatch.nim b/compiler/sigmatch.nim index 4a5132d6d..22915a4bb 100644 --- a/compiler/sigmatch.nim +++ b/compiler/sigmatch.nim @@ -1777,7 +1777,10 @@ proc matches*(c: PContext, n, nOrig: PNode, m: var TCandidate) = break else: # use default value: - setSon(m.call, formal.position + 1, copyTree(formal.ast)) + var def = copyTree(formal.ast) + if def.kind == nkNilLit: + def = implicitConv(nkHiddenStdConv, formal.typ, def, m, c) + setSon(m.call, formal.position + 1, def) inc(f) proc argtypeMatches*(c: PContext, f, a: PType): bool = diff --git a/tests/typerel/tclosure_nil_as_default.nim b/tests/typerel/tclosure_nil_as_default.nim new file mode 100644 index 000000000..fe9f42b14 --- /dev/null +++ b/tests/typerel/tclosure_nil_as_default.nim @@ -0,0 +1,11 @@ + +# bug #4328 +type + foo[T] = object + z: T + +proc test[T](x: foo[T], p: proc(a: T) = nil) = + discard + +var d: foo[int] +d.test() # <- param omitted |