// 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]

		if !tt.nameOff(m.Name).IsExported() {
			panic("reflect: " + op + " of unexported method")
		}
		iface := (*nonEmptyInterface)(v.ptr)
		if iface.itab == nil {
			panic("reflect: " + op + " of method on nil interface value")
		}
		rcvrtype = iface.itab.Type
		fn = unsafe.Pointer(&unsafe.Slice(&iface.itab.Fun[0], i+1)[i])
		t = (*funcType)(unsafe.Pointer(tt.typeOff(m.Typ)))
	} else {
		rcvrtype = v.typ()

// 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

		nif.Body = []ir.Node{ir.NewAssignStmt(base.Pos, typeWord, itabType(typeWord))}
		init.Append(nif)

		// Build the result.
		// e = iface{typeWord, data}
		e := ir.NewBinaryExpr(base.Pos, ir.OMAKEFACE, typeWord, data)
		e.SetType(toType) // assign type manually, typecheck doesn't understand OEFACE.
		e.SetTypecheck(1)
		return e
	}

	// Note: iface_i gets installed implicitly as a dependency of iface_a.
	goCmd(t, "install", "-buildmode=shared", "-linkshared", "./iface_b")
	goCmd(t, "install", "-linkshared", "./iface")
	run(t, "running type/itab uniqueness tester", "../../bin/iface")
}

// Access a global variable from a library.
func TestGlobal(t *testing.T) {
	globalSkip(t)
	goCmd(t, "install", "-buildmode=shared", "-linkshared", "./globallib")

	return 64
}
func (k *IfaceKey) flipBit(i int) {
	k.i = k.i.(fInter) ^ fInter(1)<<uint(i)
}
func (k *IfaceKey) hash() uintptr {
	return IfaceHash(k.i, 0)
}
func (k *IfaceKey) name() string {
	return "Iface"
}

// Flipping a single bit of a key should flip each output bit with 50% probability.
func TestSmhasherAvalanche(t *testing.T) {
	if GOARCH == "wasm" {
		t.Skip("Too slow on wasm")
	}

	case TCHAN,
		TMAP,
		TFUNC,
		TUNSAFEPTR:
		return true

	case TARRAY:
		// Array of 1 direct iface type can be direct.
		return t.NumElem() == 1 && IsDirectIface(t.Elem())

	case TSTRUCT:
		// Struct with 1 field of direct iface type can be direct.
		return t.NumFields() == 1 && IsDirectIface(t.Field(0).Type)
	}

	return false
}

				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)},

	// 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() == abi.Interface {
		v := (*interfaceType)(unsafe.Pointer(V))
		i := 0
		for j := 0; j < len(v.Methods); j++ {
			tm := &t.Methods[i]
			tmName := t.nameOff(tm.Name)

	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))
}

// The guintptr, muintptr, and puintptr are all used to bypass write barriers.