// setHrefParam updates the specified parameter in the  href of an <a>
  // element to make it operate on the specified src.
  function setHrefParam(id, param, src) {
    const elem = document.getElementById(id);
    if (!elem) return;

    let url = new URL(elem.href);
    url.hash = '';

    // Copy params from this page's URL.
    const params = url.searchParams;
    for (const p of new URLSearchParams(window.location.search)) {

  %const = "tf.Const"() {value = dense<1> : tensor<i32>} : () -> tensor<i32>
  %elem = "tf._SomeOp"() : () -> tensor<3xf32>
  %grad:2 = "tf.TensorArrayGradV3"(%ta#0, %ta#1) {source = "a"} : (tensor<!tf_type.resource>, tensor<f32>) -> (tensor<!tf_type.resource>, tensor<f32>)
  %gwrite = "tf.TensorArrayWriteV3"(%grad#0, %const, %elem, %grad#1) : (tensor<!tf_type.resource>, tensor<i32>, tensor<3xf32>, tensor<f32>) -> tensor<f32>
  func.return

		at := (*arraytype)(unsafe.Pointer(typ))
		for i := uintptr(0); i < at.Len; i++ {
			if off < at.Elem.Size_ {
				cgoCheckUsingType(at.Elem, src, off, size)
			}
			src = add(src, at.Elem.Size_)
			skipped := off
			if skipped > at.Elem.Size_ {
				skipped = at.Elem.Size_
			}
			checked := at.Elem.Size_ - skipped
			off -= skipped
			if size <= checked {
				return
			}
			size -= checked
		}

		default:
			return ast.NewIdent(t.Name())
		}
	case *types.Pointer:
		x := TypeExpr(f, pkg, t.Elem())
		if x == nil {
			return nil
		}
		return &ast.UnaryExpr{
			Op: token.MUL,
			X:  x,
		}
	case *types.Array:
		elt := TypeExpr(f, pkg, t.Elem())
		if elt == nil {
			return nil
		}
		return &ast.ArrayType{
			Len: &ast.BasicLit{
				Kind:  token.INT,

		}
		return &(*u)(unsafe.Pointer(t)).u
	}
}

// Elem returns the element type for t if t is an array, channel, map, pointer, or slice, otherwise nil.
func (t *Type) Elem() *Type {
	switch t.Kind() {
	case Array:
		tt := (*ArrayType)(unsafe.Pointer(t))
		return tt.Elem
	case Chan:
		tt := (*ChanType)(unsafe.Pointer(t))
		return tt.Elem
	case Map:
		tt := (*MapType)(unsafe.Pointer(t))
		return tt.Elem

// TODO(mdempsky): Store this information directly in the Type's Name.
var typeSymIdx = make(map[*types.Type][2]int64)

func BaseTypeIndex(t *types.Type) int64 {
	tbase := t
	if t.IsPtr() && t.Sym() == nil && t.Elem().Sym() != nil {
		tbase = t.Elem()
	}
	i, ok := typeSymIdx[tbase]
	if !ok {
		return -1
	}
	if t != tbase {
		return i[1]
	}
	return i[0]

func (u *URL) JoinPath(elem ...string) *URL {
	elem = append([]string{u.EscapedPath()}, elem...)
	var p string
	if !strings.HasPrefix(elem[0], "/") {
		// Return a relative path if u is relative,
		// but ensure that it contains no ../ elements.
		elem[0] = "/" + elem[0]
		p = path.Join(elem...)[1:]
	} else {
		p = path.Join(elem...)
	}
	// path.Join will remove any trailing slashes.

			}
		}
		return true
	case reflect.Interface:
		if v1.IsNil() || v2.IsNil() {
			return v1.IsNil() == v2.IsNil()
		}
		return e.deepValueEqual(v1.Elem(), v2.Elem(), visited, equateNilAndEmpty, depth+1)
	case reflect.Ptr:
		return e.deepValueEqual(v1.Elem(), v2.Elem(), visited, equateNilAndEmpty, depth+1)
	case reflect.Struct:
		for i, n := 0, v1.NumField(); i < n; i++ {

// It also reports whether a Pointer was present.
func ReceiverNamed(recv *types.Var) (isPtr bool, named *types.Named) {
	t := recv.Type()
	if ptr, ok := aliases.Unalias(t).(*types.Pointer); ok {
		isPtr = true
		t = ptr.Elem()
	}
	named, _ = aliases.Unalias(t).(*types.Named)
	return
}

// Unpointer returns T given *T or an alias thereof.
// For all other types it is the identity function.
// It does not look at underlying types.

		name  string
		elems []string
		elem  string
		out   bool
	}{
		{"exists", []string{"1", "2", "3"}, "1", true},
		{"not exists", []string{"1", "2", "3"}, "4", false},
	}
	for _, test := range containsTests {
		t.Run(test.name, func(t *testing.T) {
			if out := Contains(test.elems, test.elem); test.out != out {
				t.Errorf("Contains(%v, %s) want: %t, got: %t", test.elems, test.elem, test.out, out)
			}
		})
	}
}