Function imutMethodReceiver

gen/spec.go:313–340

possibly-immutable method receiver

(p Elem)

// possibly-immutable method receiver
func imutMethodReceiver(p Elem) string {
	typeName := p.BaseTypeName()
	typeParams := p.TypeParams()

	switch e := p.(type) {
	case *Struct:
		// TODO(HACK): actually do real math here.
		if len(e.Fields) <= 3 {
			for i := range e.Fields {
				if be, ok := e.Fields[i].FieldElem.(*BaseElem); !ok || (be.Value == IDENT || be.Value == Bytes) {
					goto nope
				}
			}
			return typeName + typeParams.TypeParams
		}
	nope:
		return "*" + typeName + typeParams.TypeParams

	// gets dereferenced automatically
	case *Array:
		return "*" + typeName + typeParams.TypeParams

	// everything else can be
	// by-value.
	default:
		return typeName + typeParams.TypeParams
	}
}

// if necessary, wraps a type
// so that its method receiver