diff options
Diffstat (limited to 'src/go/types/issues_test.go')
-rw-r--r-- | src/go/types/issues_test.go | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/go/types/issues_test.go b/src/go/types/issues_test.go index bd98f48177..2892aab38e 100644 --- a/src/go/types/issues_test.go +++ b/src/go/types/issues_test.go @@ -664,3 +664,40 @@ func TestIssue50646(t *testing.T) { t.Errorf("comparable not assignable to any") } } + +func TestIssue55030(t *testing.T) { + // makeSig makes the signature func(typ...) + makeSig := func(typ Type) { + par := NewVar(token.NoPos, nil, "", typ) + params := NewTuple(par) + NewSignatureType(nil, nil, nil, params, nil, true) + } + + // makeSig must not panic for the following (example) types: + // []int + makeSig(NewSlice(Typ[Int])) + + // string + makeSig(Typ[String]) + + // P where P's core type is string + { + P := NewTypeName(token.NoPos, nil, "P", nil) // [P string] + makeSig(NewTypeParam(P, NewInterfaceType(nil, []Type{Typ[String]}))) + } + + // P where P's core type is an (unnamed) slice + { + P := NewTypeName(token.NoPos, nil, "P", nil) // [P []int] + makeSig(NewTypeParam(P, NewInterfaceType(nil, []Type{NewSlice(Typ[Int])}))) + } + + // P where P's core type is bytestring (i.e., string or []byte) + { + t1 := NewTerm(true, Typ[String]) // ~string + t2 := NewTerm(false, NewSlice(Typ[Byte])) // []byte + u := NewUnion([]*Term{t1, t2}) // ~string | []byte + P := NewTypeName(token.NoPos, nil, "P", nil) // [P ~string | []byte] + makeSig(NewTypeParam(P, NewInterfaceType(nil, []Type{u}))) + } +} |