func TestNameStrategy(t *testing.T) {
u := types.Universe{}
// Add some types.
base := u.Type(types.Name{Package: "foo/bar", Name: "Baz"})
base.Kind = types.Struct
tmp := u.Type(types.Name{Package: "", Name: "[]bar.Baz"})
tmp.Kind = types.Slice
tmp.Elem = base
tmp = u.Type(types.Name{Package: "", Name: "map[string]bar.Baz"})
tmp.Kind = types.Map
tmp.Key = types.String
tmp.Elem = base
tmp = u.Type(types.Name{Package: "foo/other", Name: "Baz"})
tmp.Kind = types.Struct
tmp.Members = []types.Member{{
Embedded: true,
Type: base,
}}
u.Type(types.Name{Package: "", Name: "string"})
o := Orderer{NewPublicNamer(0)}
order := o.OrderUniverse(u)
orderedNames := make([]string, len(order))
for i, t := range order {
orderedNames[i] = o.Name(t)
}
expect := []string{"Baz", "Baz", "MapStringToBaz", "SliceBaz", "String"}
if e, a := expect, orderedNames; !reflect.DeepEqual(e, a) {
t.Errorf("Wanted %#v, got %#v", e, a)
}
o = Orderer{NewRawNamer("my/package", nil)}
order = o.OrderUniverse(u)
orderedNames = make([]string, len(order))
for i, t := range order {
orderedNames[i] = o.Name(t)
}
expect = []string{"[]bar.Baz", "bar.Baz", "map[string]bar.Baz", "other.Baz", "string"}
if e, a := expect, orderedNames; !reflect.DeepEqual(e, a) {
t.Errorf("Wanted %#v, got %#v", e, a)
}
o = Orderer{NewRawNamer("foo/bar", nil)}
order = o.OrderUniverse(u)
orderedNames = make([]string, len(order))
for i, t := range order {
orderedNames[i] = o.Name(t)
}
expect = []string{"Baz", "[]Baz", "map[string]Baz", "other.Baz", "string"}
if e, a := expect, orderedNames; !reflect.DeepEqual(e, a) {
t.Errorf("Wanted %#v, got %#v", e, a)
}
o = Orderer{NewPublicNamer(1)}
order = o.OrderUniverse(u)
orderedNames = make([]string, len(order))
for i, t := range order {
orderedNames[i] = o.Name(t)
}
expect = []string{"BarBaz", "MapStringToBarBaz", "OtherBaz", "SliceBarBaz", "String"}
if e, a := expect, orderedNames; !reflect.DeepEqual(e, a) {
t.Errorf("Wanted %#v, got %#v", e, a)
}
}
// walkType adds the type, and any necessary child types.
func (b *Builder) walkType(u types.Universe, useName *types.Name, in tc.Type) *types.Type {
// Most of the cases are underlying types of the named type.
name := tcNameToName(in.String())
if useName != nil {
name = *useName
}
switch t := in.(type) {
case *tc.Struct:
out := u.Type(name)
if out.Kind != types.Unknown {
return out
}
out.Kind = types.Struct
for i := 0; i < t.NumFields(); i++ {
f := t.Field(i)
m := types.Member{
Name: f.Name(),
Embedded: f.Anonymous(),
Tags: t.Tag(i),
Type: b.walkType(u, nil, f.Type()),
CommentLines: b.priorCommentLines(f.Pos(), 1).Text(),
}
out.Members = append(out.Members, m)
}
return out
case *tc.Map:
out := u.Type(name)
if out.Kind != types.Unknown {
return out
}
out.Kind = types.Map
out.Elem = b.walkType(u, nil, t.Elem())
out.Key = b.walkType(u, nil, t.Key())
return out
case *tc.Pointer:
out := u.Type(name)
if out.Kind != types.Unknown {
return out
}
out.Kind = types.Pointer
out.Elem = b.walkType(u, nil, t.Elem())
return out
case *tc.Slice:
out := u.Type(name)
if out.Kind != types.Unknown {
return out
}
out.Kind = types.Slice
out.Elem = b.walkType(u, nil, t.Elem())
return out
case *tc.Array:
out := u.Type(name)
if out.Kind != types.Unknown {
return out
}
out.Kind = types.Array
out.Elem = b.walkType(u, nil, t.Elem())
// TODO: need to store array length, otherwise raw type name
// cannot be properly written.
return out
case *tc.Chan:
out := u.Type(name)
if out.Kind != types.Unknown {
return out
}
out.Kind = types.Chan
out.Elem = b.walkType(u, nil, t.Elem())
// TODO: need to store direction, otherwise raw type name
// cannot be properly written.
return out
case *tc.Basic:
out := u.Type(types.Name{
Package: "",
Name: t.Name(),
})
if out.Kind != types.Unknown {
return out
}
out.Kind = types.Unsupported
return out
case *tc.Signature:
out := u.Type(name)
if out.Kind != types.Unknown {
return out
}
out.Kind = types.Func
out.Signature = b.convertSignature(u, t)
return out
case *tc.Interface:
out := u.Type(name)
if out.Kind != types.Unknown {
return out
}
out.Kind = types.Interface
t.Complete()
for i := 0; i < t.NumMethods(); i++ {
out.Methods = append(out.Methods, b.walkType(u, nil, t.Method(i).Type()))
}
return out
case *tc.Named:
switch t.Underlying().(type) {
case *tc.Named, *tc.Basic:
name := tcNameToName(t.String())
out := u.Type(name)
if out.Kind != types.Unknown {
return out
}
out.Kind = types.Alias
out.Underlying = b.walkType(u, nil, t.Underlying())
return out
default:
// tc package makes everything "named" with an
// underlying anonymous type--we remove that annoying
// "feature" for users. This flattens those types
// together.
name := tcNameToName(t.String())
if out := u.Type(name); out.Kind != types.Unknown {
return out // short circuit if we've already made this.
}
out := b.walkType(u, &name, t.Underlying())
if len(out.Methods) == 0 {
// If the underlying type didn't already add
// methods, add them. (Interface types will
// have already added methods.)
for i := 0; i < t.NumMethods(); i++ {
out.Methods = append(out.Methods, b.walkType(u, nil, t.Method(i).Type()))
}
}
return out
}
default:
out := u.Type(name)
if out.Kind != types.Unknown {
return out
}
out.Kind = types.Unsupported
fmt.Printf("Making unsupported type entry %q for: %#v\n", out, t)
return out
}
}