var x operand
	check.expr(nil, &x, index)
	if !check.isValidIndex(&x, InvalidIndex, "index", false) {
		return
	}

	if x.mode != constant_ {
		return x.typ, -1
	}

	if x.val.Kind() == constant.Unknown {
		return
	}

	v, ok := constant.Int64Val(x.val)
	assert(ok)
	if max >= 0 && v >= max {
		check.errorf(&x, InvalidIndex, invalidArg+"index %s out of bounds [0:%d]", x.val.String(), max)

	var x operand
	check.expr(nil, &x, index)
	if !check.isValidIndex(&x, InvalidIndex, "index", false) {
		return
	}

	if x.mode != constant_ {
		return x.typ, -1
	}

	if x.val.Kind() == constant.Unknown {
		return
	}

	v, ok := constant.Int64Val(x.val)
	assert(ok)
	if max >= 0 && v >= max {
		check.errorf(&x, InvalidIndex, invalidArg+"index %s out of bounds [0:%d]", x.val.String(), max)

	_ = x[UndefinedOp-45]
	_ = x[MismatchedTypes-46]
	_ = x[DivByZero-47]
	_ = x[NonNumericIncDec-48]
	_ = x[UnaddressableOperand-49]
	_ = x[InvalidIndirection-50]
	_ = x[NonIndexableOperand-51]
	_ = x[InvalidIndex-52]
	_ = x[SwappedSliceIndices-53]
	_ = x[NonSliceableOperand-54]
	_ = x[InvalidSliceExpr-55]
	_ = x[InvalidShiftCount-56]
	_ = x[InvalidShiftOperand-57]
	_ = x[InvalidReceive-58]
	_ = x[InvalidSend-59]

	_ = x[UndefinedOp-45]
	_ = x[MismatchedTypes-46]
	_ = x[DivByZero-47]
	_ = x[NonNumericIncDec-48]
	_ = x[UnaddressableOperand-49]
	_ = x[InvalidIndirection-50]
	_ = x[NonIndexableOperand-51]
	_ = x[InvalidIndex-52]
	_ = x[SwappedSliceIndices-53]
	_ = x[NonSliceableOperand-54]
	_ = x[InvalidSliceExpr-55]
	_ = x[InvalidShiftCount-56]
	_ = x[InvalidShiftOperand-57]
	_ = x[InvalidReceive-58]
	_ = x[InvalidSend-59]

		"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
		"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
		"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
	invalidIndex = '\xff'
)

// NewEncoding returns a new padded Encoding defined by the given alphabet,
// which must be a 32-byte string that contains unique byte values and

		"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
		"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
		"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
	invalidIndex = '\xff'
)

// NewEncoding returns a new padded Encoding defined by the given alphabet,
// which must be a 64-byte string that contains unique byte values and

	NonIndexableOperand

	// InvalidIndex occurs when an index argument is not of integer type,
	// negative, or out-of-bounds.
	//
	// Example:
	//  var s = [...]int{1,2,3}
	//  var x = s[5]
	//
	// Example:
	//  var s = []int{1,2,3}
	//  var _ = s[-1]
	//
	// Example:
	//  var s = []int{1,2,3}
	//  var i string
	//  var _ = s[i]
	InvalidIndex

	NonIndexableOperand

	// InvalidIndex occurs when an index argument is not of integer type,
	// negative, or out-of-bounds.
	//
	// Example:
	//  var s = [...]int{1,2,3}
	//  var x = s[5]
	//
	// Example:
	//  var s = []int{1,2,3}
	//  var _ = s[-1]
	//
	// Example:
	//  var s = []int{1,2,3}
	//  var i string
	//  var _ = s[i]
	InvalidIndex

}
func invalidtypecode(path ...string) validationMatch {
	return validationMatch{path: field.NewPath(path[0], path[1:]...), errorType: field.ErrorTypeTypeInvalid}
}
func invalidIndex(index int, path ...string) validationMatch {
	return validationMatch{path: field.NewPath(path[0], path[1:]...).Index(index), errorType: field.ErrorTypeInvalid}
}
func unsupported(path ...string) validationMatch {

                    }

                fun String.isValidIndex(index: Int) = index in indices

                check(text.isValidIndex(offset))

                val realStartIndex = offset + offsetRelativeIndexRange.first
                check(text.isValidIndex(realStartIndex))

                val realEndIndex = offset + offsetRelativeIndexRange.last
                check(text.isValidIndex(realEndIndex))