type Element interface {
}

type Vector struct {
	elem []Element;
}

func (v *Vector) At(i int) Element {
	return v.elem[i];
}

type TStruct struct {
	name string;
	fields *Vector;
}

func (s *TStruct) field(i int) *TStruct {
	return s.fields.At(i).(*TStruct);
}

func main() {
	v := new(Vector);
	v.elem = make([]Element, 10);
	t := new(TStruct);
	t.name = "hi";
	v.elem[0] = t;

	return unsafe.Sizeof(x)
}

// size returns the alignment of type T
func align[T any](x T) uintptr {
	return unsafe.Alignof(x)
}

type Tstruct[T any] struct {
	f1 T
	f2 int
}

// offset returns the offset of field f2 in the generic type Tstruct
func (r *Tstruct[T]) offset() uintptr {
	return unsafe.Offsetof(r.f2)
}

func main() {
	v1 := int(5)
	if got, want := size(v1), unsafe.Sizeof(v1); got != want {

	_ = x[TCOMPLEX64-12]
	_ = x[TCOMPLEX128-13]
	_ = x[TFLOAT32-14]
	_ = x[TFLOAT64-15]
	_ = x[TBOOL-16]
	_ = x[TPTR-17]
	_ = x[TFUNC-18]
	_ = x[TSLICE-19]
	_ = x[TARRAY-20]
	_ = x[TSTRUCT-21]
	_ = x[TCHAN-22]
	_ = x[TMAP-23]
	_ = x[TINTER-24]
	_ = x[TFORW-25]
	_ = x[TANY-26]
	_ = x[TSTRING-27]
	_ = x[TUNSAFEPTR-28]
	_ = x[TIDEAL-29]
	_ = x[TNIL-30]
	_ = x[TBLANK-31]
	_ = x[TFUNCARGS-32]

}

// StructType contains Type fields specific to struct types.
type Struct struct {
	fields fields

	// Maps have three associated internal structs (see struct MapType).
	// Map links such structs back to their map type.
	Map *Type

	ParamTuple bool // whether this struct is actually a tuple of signature parameters
}

// StructType returns t's extra struct-specific fields.
func (t *Type) StructType() *Struct {

// for struct identity.
func IdenticalIgnoreTags(t1, t2 *Type) bool {
	return identical(t1, t2, identIgnoreTags, nil)
}

// IdenticalStrict is like Identical, but matches types exactly, without the
// exception for shapes.
func IdenticalStrict(t1, t2 *Type) bool {
	return identical(t1, t2, identStrict, nil)
}

type typePair struct {
	t1 *Type
	t2 *Type
}

	case types.TSTRING:
		// struct { byte *str; intgo len; }
		if off&int64(types.PtrSize-1) != 0 {
			base.Fatalf("typebits.Set: invalid alignment, %v", t)
		}
		bv.Set(int32(off / int64(types.PtrSize))) //pointer in first slot

	case types.TINTER:
		// struct { Itab *tab;	void *data; }
		// or, when isnilinter(t)==true:
		// struct { Type *type; void *data; }
		if off&int64(types.PtrSize-1) != 0 {

	okforeq[types.TSLICE] = true  // nil only; refined in typecheck
	okforeq[types.TARRAY] = true  // only if element type is comparable; refined in typecheck
	okforeq[types.TSTRUCT] = true // only if all struct fields are comparable; refined in typecheck

	types.IsOrdered[types.TSTRING] = true

	for i := range okfor {
		okfor[i] = okfornone[:]
	}

	// binary
	okfor[ir.OADD] = okforadd[:]

	if i >= 0 { // float PR
		return OpArgFloatReg, i
	}
	return OpArgIntReg, int64(r)
}

type selKey struct {
	from          *Value // what is selected from
	offsetOrIndex int64  // whatever is appropriate for the selector
	size          int64
	typ           *types.Type
}

type expandState struct {
	f       *Func

		// type literal. For example, given "type Int = int" (#50190),
		// it would be incorrect to format "struct{ Int }" as either
		// "struct{ int }" or "struct{ Int int }", because those each
		// represent other, distinct types.
		//
		// So for the purpose of LinkString (i.e., fmtTypeID), we use
		// the non-standard syntax "struct{ Int = int }" to represent
		// embedded fields that have been renamed through the use of
		// type aliases.

		if expr == nil {
			expr = cond
		} else {
			expr = ir.NewLogicalExpr(base.Pos, andor, expr, cond)
		}
	}
	cmpl = safeExpr(cmpl, init)
	cmpr = safeExpr(cmpr, init)
	if t.IsStruct() {
		conds, _ := compare.EqStruct(t, cmpl, cmpr)
		if n.Op() == ir.OEQ {
			for _, cond := range conds {
				and(cond)
			}
		} else {
			for _, cond := range conds {
				notCond := ir.NewUnaryExpr(base.Pos, ir.ONOT, cond)