constraints.URL.message                     = {item} must be a valid URL.
constraints.Required.message                = {item} is required.
constraints.TypeInteger.message             = {item} should be numeric.
constraints.TypeLong.message                = {item} should be numeric.
constraints.TypeFloat.message               = {item} should be numeric.
constraints.TypeDouble.message              = {item} should be numeric.

)

type IfMsghdr struct {
	Msglen  uint16
	Version uint8
	Type    uint8
	Addrs   int32
	Flags   int32
	Index   uint16
	Data    IfData
}

type IfData struct {
	Type       uint8
	Typelen    uint8
	Physical   uint8
	Addrlen    uint8
	Hdrlen     uint8
	Recvquota  uint8
	Xmitquota  uint8
	Unused1    uint8
	Mtu        uint32
	Metric     uint32
	Baudrate   uint32
	Ipackets   uint32

constraints.ScriptAssert.message = 스크립트 식 「{script}」이 true가 없습니다.
constraints.URL.message = {item}은 유효한 URL이 없습니다.
constraints.Required.message = {item}이 필요합니다.
constraints.TypeInteger.message = {item}은 숫자로하십시오.
constraints.TypeLong.message = {item}은 숫자로하십시오.
constraints.TypeFloat.message = {item}은 숫자로하십시오.
constraints.TypeDouble.message = {item}은 숫자로하십시오.
constraints.TypeAny.message = {item}는 {propertyType}로 변환 할 수 없습니다.

}

// instance holds information that is only necessary for instantiated named
// types.
type instance struct {
	orig            *Named    // original, uninstantiated type
	targs           *TypeList // type arguments
	expandedMethods int       // number of expanded methods; expandedMethods <= len(orig.methods)
	ctxt            *Context  // local Context; set to nil after full expansion
}

		{"(*Term).Type", Method, 18},
		{"(*Tuple).At", Method, 5},
		{"(*Tuple).Len", Method, 5},
		{"(*Tuple).String", Method, 5},
		{"(*Tuple).Underlying", Method, 5},
		{"(*TypeList).At", Method, 18},
		{"(*TypeList).Len", Method, 18},
		{"(*TypeName).Exported", Method, 5},
		{"(*TypeName).Id", Method, 5},
		{"(*TypeName).IsAlias", Method, 9},
		{"(*TypeName).Name", Method, 5},

}

// instance holds information that is only necessary for instantiated named
// types.
type instance struct {
	orig            *Named    // original, uninstantiated type
	targs           *TypeList // type arguments
	expandedMethods int       // number of expanded methods; expandedMethods <= len(orig.methods)
	ctxt            *Context  // local Context; set to nil after full expansion
}

	// targs and xlist are the type arguments and corresponding type expressions, or nil.
	var targs []Type
	var xlist []syntax.Expr
	if inst != nil {
		xlist = syntax.UnpackListExpr(inst.Index)
		targs = check.typeList(xlist)
		if targs == nil {
			x.mode = invalid
			return nil, nil
		}
		assert(len(targs) == len(xlist))
	}

	// Check the number of type arguments (got) vs number of type parameters (want).

  /**
   * The HTTP <a href="http://html.spec.whatwg.org/multipage/semantics.html#hyperlink-auditing">
   * {@code Ping-From}</a> header field name.
   *
   * @since 19.0
   */
  public static final String PING_FROM = "Ping-From";
  /**
   * The HTTP <a href="http://html.spec.whatwg.org/multipage/semantics.html#hyperlink-auditing">
   * {@code Ping-To}</a> header field name.
   *
   * @since 19.0
   */

  /**
   * The HTTP <a href="http://html.spec.whatwg.org/multipage/semantics.html#hyperlink-auditing">
   * {@code Ping-From}</a> header field name.
   *
   * @since 19.0
   */
  public static final String PING_FROM = "Ping-From";
  /**
   * The HTTP <a href="http://html.spec.whatwg.org/multipage/semantics.html#hyperlink-auditing">
   * {@code Ping-To}</a> header field name.
   *
   * @since 19.0
   */

	// targs and xlist are the type arguments and corresponding type expressions, or nil.
	var targs []Type
	var xlist []ast.Expr
	if ix != nil {
		xlist = ix.Indices
		targs = check.typeList(xlist)
		if targs == nil {
			x.mode = invalid
			return nil, nil
		}
		assert(len(targs) == len(xlist))
	}

	// Check the number of type arguments (got) vs number of type parameters (want).