// type restrictions of a type, if any.
//
// For all types other than *types.TypeParam, *types.Interface, and
// *types.Union, this is just a single term with Tilde() == false and
// Type() == typ. For *types.TypeParam, *types.Interface, and *types.Union, see
// below.
//
// Structural type restrictions of a type parameter are created via
// non-interface types embedded in its constraint interface (directly, or via a

package a

import "unsafe"

const _ = unsafe.Offsetof(struct{ x int64 }{}.x)
`
	info := types.Info{Types: make(map[ast.Expr]types.TypeAndValue)}
	conf := types.Config{
		Importer: importer.Default(),
		Sizes:    &types.StdSizes{WordSize: 8, MaxAlign: 8},
	}
	mustTypecheck(src, &conf, &info)
	for _, tv := range info.Types {
		_ = conf.Sizes.Sizeof(tv.Type)
		_ = conf.Sizes.Alignof(tv.Type)
	}
}

// go.dev/issue/53884.

package aliases

import (
	"go/types"
)

// Alias is a placeholder for a go/types.Alias for <=1.21.
// It will never be created by go/types.
type Alias struct{}

func (*Alias) String() string         { panic("unreachable") }
func (*Alias) Underlying() types.Type { panic("unreachable") }
func (*Alias) Obj() *types.TypeName   { panic("unreachable") }
func Rhs(alias *Alias) types.Type     { panic("unreachable") }

			expectValue: types.OptionalNone,
		},
		{
			name:        "datetime_failure",
			expr:        `format.datetime().validate("2020-01-32T00:00:00Z")`,
			expectValue: types.OptionalOf(types.NewStringList(types.DefaultTypeAdapter, []string{"invalid datetime"})),
		},
		{
			name:        "unknown_format",
			expr:        `format.named("unknown").hasValue()`,
			expectValue: types.False,
		},
		{

// of the types specified in 'fieldtypes'.
func mkstruct(fieldtypes ...*types.Type) *types.Type {
	fields := make([]*types.Field, len(fieldtypes))
	for k, t := range fieldtypes {
		if t == nil {
			panic("bad -- field has no type")
		}
		f := types.NewField(src.NoXPos, nil, t)
		fields[k] = f
	}
	s := types.NewStruct(fields)
	return s
}

	case *types.Array:
		return w.Has(t.Elem())

	case *types.Slice:
		return w.Has(t.Elem())

	case *types.Struct:
		for i, n := 0, t.NumFields(); i < n; i++ {
			if w.Has(t.Field(i).Type()) {
				return true
			}
		}

	case *types.Pointer:
		return w.Has(t.Elem())

	case *types.Tuple:
		n := t.Len()
		for i := 0; i < n; i++ {
			if w.Has(t.At(i).Type()) {
				return true
			}
		}

}

// MethodSet returns the method set of type T.  It is thread-safe.
//
// If cache is nil, this function is equivalent to types.NewMethodSet(T).
// Utility functions can thus expose an optional *MethodSetCache
// parameter to clients that care about performance.
func (cache *MethodSetCache) MethodSet(T types.Type) *types.MethodSet {
	if cache == nil {

// contains each method belonging to *T if there is no identically
// named method on T itself.
//
// This corresponds to user intuition about method sets;
// this function is intended only for user interfaces.
//
// The order of the result is as for types.MethodSet(T).
func IntuitiveMethodSet(T types.Type, msets *MethodSetCache) []*types.Selection {
	isPointerToConcrete := func(T types.Type) bool {

// type defString struct {
//	data uintptr
//	len  uintptr
// }

func createtypes() (*types.Type, *types.Type, *types.Type) {
	up := types.Types[types.TUINTPTR]
	i32 := types.Types[types.TINT32]
	fname := typecheck.Lookup
	nxp := src.NoXPos
	nfield := types.NewField
	asanGlobal := types.NewStruct([]*types.Field{
		nfield(nxp, fname("beg"), up),
		nfield(nxp, fname("size"), up),

        Set<Class<?>> types = inspected.get(type);
        if (types == null) {
            types = new HashSet<Class<?>>();
            visit(type, types);
            inspected.put(type, types);
        }
        return types;
    }

    private void visit(Class<?> type, Set<Class<?>> types) {
        if (type.isArray()) {
            visit(type.getComponentType(), types);
            return;
        }