code review 6015046: syscall: remove the Signal type on Plan 9

src/pkg/syscall/syscall_plan9.go

 // Copyright 2011 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.
 
 // Plan 9 system calls.
 // This file is compiled as ordinary Go code,
 // but it is also input to mksyscall,
 // which parses the //sys lines and generates system call stubs.
 // Note that sometimes we use a lowercase //sys name and
 // wrap it in our own nicer implementation.
 
 package syscall
 
 import "unsafe"
 
 const ImplementsGetwd = true
 
 // ErrorString implements Error's String method by returning itself.
 type ErrorString string
 
 func (e ErrorString) Error() string { return string(e) }
 
 // NewError converts s to an ErrorString, which satisfies the Error interface.
 func NewError(s string) error { return ErrorString(s) }
 
+// A Note is a string describing a process note.
+// It implements the os.Signal interface.
+type Note string
+
+func (n Note) Signal() {}
+
+func (n Note) String() string {
+        return string(n)
+}
+
 var (
         Stdin  = 0
         Stdout = 1
         Stderr = 2
 
         EAFNOSUPPORT = NewError("address family not supported by protocol")
         EISDIR       = NewError("file is a directory")
 )
 
 // For testing: clients can set this flag to force
@@ skipping 279 matching lines @@
 
 func Getegid() (egid int) { return -1 }
 func Geteuid() (euid int) { return -1 }
 func Getgid() (gid int)   { return -1 }
 func Getuid() (uid int)   { return -1 }
 
 func Getgroups() (gids []int, err error) {
         return make([]int, 0), nil
 }
 
-type Signal int
-
-func (s Signal) Signal() {}
-
-func (s Signal) String() string {
-        return ""
-}
-
 //sys   Dup(oldfd int, newfd int) (fd int, err error)
 //sys   Open(path string, mode int) (fd int, err error)
 //sys   Create(path string, mode int, perm uint32) (fd int, err error)
 //sys   Remove(path string) (err error)
 //sys   Pread(fd int, p []byte, offset int64) (n int, err error)
 //sys   Pwrite(fd int, p []byte, offset int64) (n int, err error)
 //sys   Close(fd int) (err error)
 //sys   Chdir(path string) (err error)
 //sys   Bind(name string, old string, flag int) (err error)
 //sys   Mount(fd int, afd int, old string, flag int, aname string) (err error)
 //sys   Stat(path string, edir []byte) (n int, err error)
 //sys   Fstat(fd int, edir []byte) (n int, err error)
 //sys   Wstat(path string, edir []byte) (err error)
 //sys   Fwstat(fd int, edir []byte) (err error)