package main

import "os"

var fail int

func check(b bool, msg string) {
	if (!b) {
		println("failure in", msg)
		fail++
	}
}

type I1 interface { Get() int; Put(int) }

type S1 struct { i int }
func (p S1) Get() int { return p.i }
func (p S1) Put(i int) { p.i = i }

func f1() {
	s := S1{1}
	var i I1 = s
	i.Put(2)
	check(i.Get() == 1, "f1 i")
	check(s.i == 1, "f1 s")
}

)

// ----------------------------------------------------------------------------
// API

// A Struct represents a struct type.
type Struct struct {
	fields []*Var   // fields != nil indicates the struct is set up (possibly with len(fields) == 0)
	tags   []string // field tags; nil if there are no tags
}

// NewStruct returns a new struct with the given fields and corresponding field tags.

// license that can be found in the LICENSE file.

package main

import (
	"fmt"
)

type E[T any] struct {
	v T
}

type S1 struct {
	E[int]
	v string
}

type Eint = E[int]
type Ebool = E[bool]
type Eint2 = Eint

type S2 struct {
	Eint
	Ebool
	v string
}

type S3 struct {
	*E[int]
}

func main() {
	s1 := S1{Eint{2}, "foo"}
	if got, want := s1.E.v, 2; got != want {

)

// ----------------------------------------------------------------------------
// API

// A Struct represents a struct type.
type Struct struct {
	fields []*Var   // fields != nil indicates the struct is set up (possibly with len(fields) == 0)
	tags   []string // field tags; nil if there are no tags
}

// NewStruct returns a new struct with the given fields and corresponding field tags.

// See the License for the specific language governing permissions and
// limitations under the License.

/*
struct.go contains functions for traversing and modifying trees of Go structs.
*/
package tpath

import (
	"fmt"
	"reflect"
	"strconv"

	"google.golang.org/protobuf/types/known/structpb"

	"istio.io/istio/operator/pkg/util"
)

// license that can be found in the LICENSE file.

// Test zero length structs.
// Used to not be evaluated.
// Issue 2232.

package main

func recv(c chan interface{}) struct{} {
	return (<-c).(struct{})
}

var m = make(map[interface{}]int)

func recv1(c chan interface{}) {
	defer rec()
	m[(<-c).(struct{})] = 0
}

func rec() {
	recover()
}

func main() {

package codegen

// This file contains code generation tests related to the handling of
// struct types.

// ------------- //
//    Zeroing    //
// ------------- //

type Z1 struct {
	a, b, c int
}

func Zero1(t *Z1) { // Issue #18370
	// amd64:`MOVUPS\tX[0-9]+, \(.*\)`,`MOVQ\t\$0, 16\(.*\)`
	*t = Z1{}
}

type Z2 struct {
	a, b, c *int
}

func Zero2(t *Z2) {

### New structs package

The new [structs] package provides
types for struct fields that modify properties of
the containing struct type such as memory layout.

In this release, the only such type is
[`HostLayout`](/pkg/structs#HostLayout)
which indicates that a structure with a field of that
type has a layout that conforms to host platform

type Struct6 struct {
	Struct1
}

// Struct7 is a struct with a nested array-typed field
// that cannot be passed in registers as a result.
type Struct7 struct {
	Struct1
	Struct2
}

// Struct8 is large aggregate struct type that may be
// passed in registers.
type Struct8 struct {
	Struct5
	Struct1
}

// Struct9 is a type that has an array type nested

	var u struct {
		x struct {
			x int "bar"
		} "bar"
	}
	s = s
	s = t // ERRORx `cannot use .* in assignment`
	s = u // ERRORx `cannot use .* in assignment`
	s = S(s)
	s = S(t)
	s = S(u)
	t = u // ERRORx `cannot use .* in assignment`
	t = T(u)
}

func _() {
	type E1 struct {
		x int "foo"
	}
	type E2 struct {
		x int "bar"
	}
	type S struct{ x E1 }
	type T struct {
		x E2 "foo"