func (s *Selection) Type() Type {
	switch s.kind {
	case MethodVal:
		// The type of x.f is a method with its receiver type set
		// to the type of x.
		sig := *s.obj.(*Func).typ.(*Signature)
		recv := *sig.recv
		recv.typ = s.recv
		sig.recv = &recv
		return &sig

	case MethodExpr:
		// The type of x.f is a function (without receiver)
		// and an additional first argument with the same type as x.

func NewMethodType(sig *types.Type, recv *types.Type) *types.Type {
	nrecvs := 0
	if recv != nil {
		nrecvs++
	}

	// TODO(mdempsky): Move this function to types.
	// TODO(mdempsky): Preserve positions, names, and package from sig+recv.

	params := make([]*types.Field, nrecvs+sig.NumParams())
	if recv != nil {
		params[0] = types.NewField(base.Pos, nil, recv)
	}
	for i, param := range sig.Params() {

        if ( fraglen > getMaxRecv() ) {
            throw new IOException("Unexpected fragment length: " + fraglen);
        }

        while ( have < fraglen ) {
            int r = this.handle.recv(inB, have, fraglen - have);
            if ( r == 0 ) {
                throw new IOException("Unexpected EOF");
            }
            have += r;
        }

        return have;
    }

! stderr 'Alias'

-- go.mod --
module example.com
go 1.12

-- a.go --
package a

/*
typedef int T;
*/
import "C"

func (C.T) f() {}
func (recv *C.T) g() {}

// The check is more education than enforcement,
// and is easily defeated using a type alias.
type Alias = C.T
func (Alias) h() {}

			ch := n.Chan
			cond = mkcall1(chanfn("selectnbsend", 2, ch.Type()), types.Types[types.TBOOL], r.PtrInit(), ch, n.Value)

		case ir.OSELRECV2:
			n := n.(*ir.AssignListStmt)
			recv := n.Rhs[0].(*ir.UnaryExpr)
			ch := recv.X
			elem := n.Lhs[0]
			if ir.IsBlank(elem) {
				elem = typecheck.NodNil()
			}
			cond = typecheck.TempAt(base.Pos, ir.CurFunc, types.Types[types.TBOOL])

		return &emptyInterface
	}

	// set method receivers if necessary
	typ := (*Checker)(nil).newInterface()
	for _, m := range methods {
		if sig := m.typ.(*Signature); sig.recv == nil {
			sig.recv = NewVar(m.pos, m.pkg, "", typ)
		}
	}

	// sort for API stability
	sortMethods(methods)

	typ.methods = methods
	typ.embeddeds = embeddeds
	typ.complete = true

	return typ
}

func _() {
	// An "invalid array index" compiler error signifies that the constant values have changed.
	// Re-run the stringer command to generate them again.
	var x [1]struct{}
	_ = x[Def-1]
	_ = x[Not-2]
	_ = x[Recv-3]
	_ = x[Tilde-4]
	_ = x[OrOr-5]
	_ = x[AndAnd-6]
	_ = x[Eql-7]
	_ = x[Neq-8]
	_ = x[Lss-9]
	_ = x[Leq-10]
	_ = x[Gtr-11]
	_ = x[Geq-12]
	_ = x[Add-13]
	_ = x[Sub-14]
	_ = x[Or-15]

    /**
     * @param buf
     * @param off
     * @param length
     * @param direct
     * @return received bytes
     * @throws CIFSException
     * @throws IOException
     */
    int recv ( byte[] buf, int off, int length ) throws IOException;


    /**
     * @param buf
     * @param off
     * @param length
     * @param direct
     * @throws IOException
     */

	StringLit
)

type Operator uint

//go:generate stringer -type Operator -linecomment tokens.go

const (
	_ Operator = iota

	// Def is the : in :=
	Def   // :
	Not   // !
	Recv  // <-
	Tilde // ~

	// precOrOr
	OrOr // ||

	// precAndAnd
	AndAnd // &&

	// precCmp
	Eql // ==
	Neq // !=
	Lss // <
	Leq // <=
	Gtr // >
	Geq // >=

	}

	var interner typeInterner

	fmt.Fprintf(w, "var %sDecls = [...]struct { name string; tag int; typ int }{\n", name)
	for _, decl := range f.Decls {
		switch decl := decl.(type) {
		case *ast.FuncDecl:
			if decl.Recv != nil {
				log.Fatal("methods unsupported")
			}
			if decl.Body != nil {
				log.Fatal("unexpected function body")
			}
			fmt.Fprintf(w, "{%q, funcTag, %d},\n", decl.Name.Name, interner.intern(decl.Type))