Alejandra <******@****.***> 1711071731 -0500

John Howard <******@****.***> 1629181835 -0700

// license that can be found in the LICENSE file.

// This file implements a regression test harness for syntax errors.
// The files in the testdata directory are parsed and the reported
// errors are compared against the errors declared in those files.
//
// Errors are declared in place in the form of "error comments",
// just before (or on the same line as) the offending token.
//

//
// The tree consists of err itself, followed by the errors obtained by repeatedly
// calling its Unwrap() error or Unwrap() []error method. When err wraps multiple
// errors, As examines err followed by a depth-first traversal of its children.
//
// An error matches target if the error's concrete value is assignable to the value
// pointed to by target, or if the error has a method As(any) bool such that

// representation. A nil error is converted to an empty string, and all other
// errors are converted to a JSON-marshaled parseError struct, with ErrorList
// set for errors of type scanner.ErrorList, and ErrorString set to the error's
// string representation for all other errors.
func parseErrorToString(err error) string {
	if err == nil {
		return ""
	}
	var p parseError

	Errors: []error{errInvalidDelim},
}, {
	Name:   "BadComma4",
	Comma:  utf8.RuneError,
	Errors: []error{errInvalidDelim},
}, {
	Name:    "BadComment1",
	Comment: '\n',
	Errors:  []error{errInvalidDelim},
}, {
	Name:    "BadComment2",
	Comment: '\r',
	Errors:  []error{errInvalidDelim},
}, {
	Name:    "BadComment3",
	Comment: utf8.RuneError,
	Errors:  []error{errInvalidDelim},
}, {

	Temporary() bool
}

// Various errors contained in OpError.
var (
	// For connection setup operations.
	errNoSuitableAddress = errors.New("no suitable address found")

	// For connection setup and write operations.
	errMissingAddress = errors.New("missing address")

	// For both read and write operations.
	errCanceled         = canceledError{}
	ErrWriteToConnected = errors.New("use of WriteTo with pre-connected connection")

 * ExecutionException}, the error's {@linkplain #getCause() cause} comes from a failed task,
 * possibly run in another thread. That cause should itself be an {@code Error}; if not, use {@code
 * ExecutionException} or {@link UncheckedExecutionException}. This allows the client code to
 * continue to distinguish between exceptions and errors, even when they come from other threads.
 *
 * @author Chris Povirk

 * ExecutionException}, the error's {@linkplain #getCause() cause} comes from a failed task,
 * possibly run in another thread. That cause should itself be an {@code Error}; if not, use {@code
 * ExecutionException} or {@link UncheckedExecutionException}. This allows the client code to
 * continue to distinguish between exceptions and errors, even when they come from other threads.
 *
 * @author Chris Povirk

package syscall

import (
	"errors"
	"internal/oserror"
	"runtime"
	"unsafe"
)

const ImplementsGetwd = true
const bitSize16 = 2

// ErrorString implements Error's String method by returning itself.
//
// ErrorString values can be tested against error values using [errors.Is].
// For example:
//
//	_, _, err := syscall.Syscall(...)
//	if errors.Is(err, fs.ErrNotExist) ...
type ErrorString string