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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package os
import syscall "syscall"
// Errors are singleton structures. Use the String() method to get their contents --
// it handles the nil (no error) case.
export type Error struct {
s string
}
var ErrorTab = new(map[int64] *Error);
export func NewError(s string) *Error {
e := new(Error);
e.s = s;
return e
}
export func ErrnoToError(errno int64) *Error {
if errno == 0 {
return nil
}
err, ok := ErrorTab[errno];
if ok {
return err
}
e := NewError(syscall.errstr(errno));
ErrorTab[errno] = e;
return e;
}
export var (
ENONE = ErrnoToError(syscall.ENONE);
EPERM = ErrnoToError(syscall.EPERM);
ENOENT = ErrnoToError(syscall.ENOENT);
ESRCH = ErrnoToError(syscall.ESRCH);
EINTR = ErrnoToError(syscall.EINTR);
EIO = ErrnoToError(syscall.EIO);
ENXIO = ErrnoToError(syscall.ENXIO);
E2BIG = ErrnoToError(syscall.E2BIG);
ENOEXEC = ErrnoToError(syscall.ENOEXEC);
EBADF = ErrnoToError(syscall.EBADF);
ECHILD = ErrnoToError(syscall.ECHILD);
EDEADLK = ErrnoToError(syscall.EDEADLK);
ENOMEM = ErrnoToError(syscall.ENOMEM);
EACCES = ErrnoToError(syscall.EACCES);
EFAULT = ErrnoToError(syscall.EFAULT);
ENOTBLK = ErrnoToError(syscall.ENOTBLK);
EBUSY = ErrnoToError(syscall.EBUSY);
EEXIST = ErrnoToError(syscall.EEXIST);
EXDEV = ErrnoToError(syscall.EXDEV);
ENODEV = ErrnoToError(syscall.ENODEV);
ENOTDIR = ErrnoToError(syscall.ENOTDIR);
EISDIR = ErrnoToError(syscall.EISDIR);
EINVAL = ErrnoToError(syscall.EINVAL);
ENFILE = ErrnoToError(syscall.ENFILE);
EMFILE = ErrnoToError(syscall.EMFILE);
ENOTTY = ErrnoToError(syscall.ENOTTY);
ETXTBSY = ErrnoToError(syscall.ETXTBSY);
EFBIG = ErrnoToError(syscall.EFBIG);
ENOSPC = ErrnoToError(syscall.ENOSPC);
ESPIPE = ErrnoToError(syscall.ESPIPE);
EROFS = ErrnoToError(syscall.EROFS);
EMLINK = ErrnoToError(syscall.EMLINK);
EPIPE = ErrnoToError(syscall.EPIPE);
EDOM = ErrnoToError(syscall.EDOM);
ERANGE = ErrnoToError(syscall.ERANGE);
EAGAIN = ErrnoToError(syscall.EAGAIN);
)
const NoError = "No Error"
func (e *Error) String() string {
if e == nil {
return NoError
}
return e.s
}
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