//           (which will compare signatures exactly as we do below).
					//           We leave it as is for now because missingMethod provides
					//           a failure cause which allows for a better error message.
					//           Eventually, unify should return an error with cause.
					var cause string
					constraint := tpar.iface()

	if !sig.Variadic() {
		return nil // not variadic
	}

	params := sig.Params()
	nparams := params.Len() // variadic => nonzero

	args := params.At(nparams - 1)
	iface, ok := args.Type().(*types.Slice).Elem().(*types.Interface)
	if !ok || !iface.Empty() {
		return nil // final (args) param is not ...interface{}
	}

	// Is second last param 'format string'?
	var format *types.Var
	if nparams >= 2 {

					//           (which will compare signatures exactly as we do below).
					//           We leave it as is for now because missingMethod provides
					//           a failure cause which allows for a better error message.
					//           Eventually, unify should return an error with cause.
					var cause string
					constraint := tpar.iface()

			if dashLast {
				// "--->" is invalid grammar. Make it "- -->"
				p.WriteByte(' ')
			}
			p.WriteString("-->")
			continue

		case fInnerXML:
			vf = indirect(vf)
			iface := vf.Interface()
			switch raw := iface.(type) {
			case []byte:
				p.Write(raw)
				continue
			case string:
				p.WriteString(raw)
				continue
			}

		case fElement, fElement | fAny:

	// methods along the way, or else V does not implement T.
	// This lets us run the scan in overall linear time instead of
	// the quadratic time  a naive search would require.
	// See also ../runtime/iface.go.
	if V.Kind() == Interface {
		v := (*interfaceType)(unsafe.Pointer(V))
		i := 0
		for j := 0; j < len(v.Methods); j++ {
			tm := &t.Methods[i]
			tmName := rT.nameOff(tm.Name)
			vm := &v.Methods[j]

// the template.
func (s *state) printValue(n parse.Node, v reflect.Value) {
	s.at(n)
	iface, ok := printableValue(v)
	if !ok {
		s.errorf("can't print %s of type %s", n, v.Type())
	}
	_, err := fmt.Fprint(s.wr, iface)
	if err != nil {
		s.writeError(err)
	}
}

// printableValue returns the, possibly indirected, interface value inside v that

					(*eface)(r).data = f.arg
					if len(ityp.Methods) != 0 {
						// convert to interface with methods
						// this conversion is guaranteed to succeed - we checked in SetFinalizer
						(*iface)(r).tab = assertE2I(ityp, (*eface)(r)._type)
					}
				default:
					throw("bad kind in runfinq")
				}
				fingStatus.Or(fingRunningFinalizer)

				as := ir.NewAssignListStmt(c.pos, ir.OAS2,
					[]ir.Node{ir.BlankNode, s.okName},                               // _, ok =
					[]ir.Node{ir.NewTypeAssertExpr(c.pos, s.srcName, c.typ.Type())}) // iface.(type)
				nif := ir.NewIfStmt(c.pos, s.okName, []ir.Node{c.jmp}, nil)
				clauses = append(clauses, typeClause{
					hash: types.TypeHash(c.typ.Type()),
					body: []ir.Node{typecheck.Stmt(as), typecheck.Stmt(nif)},

	// while sema-based impl as M* waitm.
	// Used to be a union, but unions break precise GC.
	key uintptr
}

type funcval struct {
	fn uintptr
	// variable-size, fn-specific data here
}

type iface struct {
	tab  *itab
	data unsafe.Pointer
}

type eface struct {
	_type *_type
	data  unsafe.Pointer
}

func efaceOf(ep *any) *eface {
	return (*eface)(unsafe.Pointer(ep))
}