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Improve pagination (#105)

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This commit is contained in:
konrad
2019-10-23 21:11:40 +00:00
parent 89f385a53d
commit 8948a5f219
97 changed files with 2137 additions and 529 deletions
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16
vendor/golang.org/x/sys/unix/sockcmsg_dragonfly.go generated vendored Normal file
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@ -0,0 +1,16 @@
// Copyright 2019 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 unix
// Round the length of a raw sockaddr up to align it properly.
func cmsgAlignOf(salen int) int {
salign := SizeofPtr
if SizeofPtr == 8 && !supportsABI(_dragonflyABIChangeVersion) {
// 64-bit Dragonfly before the September 2019 ABI changes still requires
// 32-bit aligned access to network subsystem.
salign = 4
}
return (salen + salign - 1) & ^(salign - 1)
}

2
vendor/golang.org/x/sys/unix/sockcmsg_linux.go generated vendored
View File

@ -17,7 +17,7 @@ func UnixCredentials(ucred *Ucred) []byte {
h.Level = SOL_SOCKET
h.Type = SCM_CREDENTIALS
h.SetLen(CmsgLen(SizeofUcred))
*((*Ucred)(cmsgData(h))) = *ucred
*(*Ucred)(h.data(0)) = *ucred
return b
}

36
vendor/golang.org/x/sys/unix/sockcmsg_unix.go generated vendored
View File

@ -9,35 +9,9 @@
package unix
import (
"runtime"
"unsafe"
)
// Round the length of a raw sockaddr up to align it properly.
func cmsgAlignOf(salen int) int {
salign := SizeofPtr
switch runtime.GOOS {
case "aix":
// There is no alignment on AIX.
salign = 1
case "darwin", "dragonfly", "solaris", "illumos":
// NOTE: It seems like 64-bit Darwin, DragonFly BSD,
// illumos, and Solaris kernels still require 32-bit
// aligned access to network subsystem.
if SizeofPtr == 8 {
salign = 4
}
case "netbsd", "openbsd":
// NetBSD and OpenBSD armv7 require 64-bit alignment.
if runtime.GOARCH == "arm" {
salign = 8
}
}
return (salen + salign - 1) & ^(salign - 1)
}
// CmsgLen returns the value to store in the Len field of the Cmsghdr
// structure, taking into account any necessary alignment.
func CmsgLen(datalen int) int {
@ -50,8 +24,8 @@ func CmsgSpace(datalen int) int {
return cmsgAlignOf(SizeofCmsghdr) + cmsgAlignOf(datalen)
}
func cmsgData(h *Cmsghdr) unsafe.Pointer {
return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)))
func (h *Cmsghdr) data(offset uintptr) unsafe.Pointer {
return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)) + offset)
}
// SocketControlMessage represents a socket control message.
@ -94,10 +68,8 @@ func UnixRights(fds ...int) []byte {
h.Level = SOL_SOCKET
h.Type = SCM_RIGHTS
h.SetLen(CmsgLen(datalen))
data := cmsgData(h)
for _, fd := range fds {
*(*int32)(data) = int32(fd)
data = unsafe.Pointer(uintptr(data) + 4)
for i, fd := range fds {
*(*int32)(h.data(4 * uintptr(i))) = int32(fd)
}
return b
}

38
vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go generated vendored Normal file
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@ -0,0 +1,38 @@
// Copyright 2019 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.
// +build aix darwin freebsd linux netbsd openbsd solaris
package unix
import (
"runtime"
)
// Round the length of a raw sockaddr up to align it properly.
func cmsgAlignOf(salen int) int {
salign := SizeofPtr
// dragonfly needs to check ABI version at runtime, see cmsgAlignOf in
// sockcmsg_dragonfly.go
switch runtime.GOOS {
case "aix":
// There is no alignment on AIX.
salign = 1
case "darwin", "illumos", "solaris":
// NOTE: It seems like 64-bit Darwin, Illumos and Solaris
// kernels still require 32-bit aligned access to network
// subsystem.
if SizeofPtr == 8 {
salign = 4
}
case "netbsd", "openbsd":
// NetBSD and OpenBSD armv7 require 64-bit alignment.
if runtime.GOARCH == "arm" {
salign = 8
}
}
return (salen + salign - 1) & ^(salign - 1)
}

2
vendor/golang.org/x/sys/unix/syscall_bsd.go generated vendored
View File

@ -237,7 +237,7 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
break
}
}
bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
sa.Name = string(bytes)
return sa, nil

2
vendor/golang.org/x/sys/unix/syscall_darwin.go generated vendored
View File

@ -339,6 +339,8 @@ func Kill(pid int, signum syscall.Signal) (err error) { return kill(pid, int(sig
//sys ioctl(fd int, req uint, arg uintptr) (err error)
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS_SYSCTL
func Uname(uname *Utsname) error {
mib := []_C_int{CTL_KERN, KERN_OSTYPE}
n := unsafe.Sizeof(uname.Sysname)

1
vendor/golang.org/x/sys/unix/syscall_darwin_386.go generated vendored
View File

@ -10,7 +10,6 @@ import (
"syscall"
)
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
//sys ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
func setTimespec(sec, nsec int64) Timespec {

1
vendor/golang.org/x/sys/unix/syscall_darwin_amd64.go generated vendored
View File

@ -10,7 +10,6 @@ import (
"syscall"
)
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
//sys ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
func setTimespec(sec, nsec int64) Timespec {

4
vendor/golang.org/x/sys/unix/syscall_darwin_arm.go generated vendored
View File

@ -12,10 +12,6 @@ func ptrace(request int, pid int, addr uintptr, data uintptr) error {
return ENOTSUP
}
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) error {
return ENOTSUP
}
func setTimespec(sec, nsec int64) Timespec {
return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
}

4
vendor/golang.org/x/sys/unix/syscall_darwin_arm64.go generated vendored
View File

@ -14,10 +14,6 @@ func ptrace(request int, pid int, addr uintptr, data uintptr) error {
return ENOTSUP
}
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) error {
return ENOTSUP
}
func setTimespec(sec, nsec int64) Timespec {
return Timespec{Sec: sec, Nsec: nsec}
}

22
vendor/golang.org/x/sys/unix/syscall_dragonfly.go generated vendored
View File

@ -12,9 +12,25 @@
package unix
import "unsafe"
import (
"sync"
"unsafe"
)
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
// See version list in https://github.com/DragonFlyBSD/DragonFlyBSD/blob/master/sys/sys/param.h
var (
osreldateOnce sync.Once
osreldate uint32
)
// First __DragonFly_version after September 2019 ABI changes
// http://lists.dragonflybsd.org/pipermail/users/2019-September/358280.html
const _dragonflyABIChangeVersion = 500705
func supportsABI(ver uint32) bool {
osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") })
return osreldate >= ver
}
// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
type SockaddrDatalink struct {
@ -152,6 +168,8 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
//sys ioctl(fd int, req uint, arg uintptr) (err error)
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
func sysctlUname(mib []_C_int, old *byte, oldlen *uintptr) error {
err := sysctl(mib, old, oldlen, nil, 0)
if err != nil {

4
vendor/golang.org/x/sys/unix/syscall_freebsd.go generated vendored
View File

@ -36,8 +36,6 @@ var (
// INO64_FIRST from /usr/src/lib/libc/sys/compat-ino64.h
const _ino64First = 1200031
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
func supportsABI(ver uint32) bool {
osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") })
return osreldate >= ver
@ -203,6 +201,8 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
//sys ioctl(fd int, req uint, arg uintptr) (err error)
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
func Uname(uname *Utsname) error {
mib := []_C_int{CTL_KERN, KERN_OSTYPE}
n := unsafe.Sizeof(uname.Sysname)

2
vendor/golang.org/x/sys/unix/syscall_linux.go generated vendored
View File

@ -884,7 +884,7 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
for n < len(pp.Path) && pp.Path[n] != 0 {
n++
}
bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
sa.Name = string(bytes)
return sa, nil

4
vendor/golang.org/x/sys/unix/syscall_netbsd.go generated vendored
View File

@ -18,8 +18,6 @@ import (
"unsafe"
)
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
type SockaddrDatalink struct {
Len uint8
@ -189,6 +187,8 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
//sys ioctl(fd int, req uint, arg uintptr) (err error)
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
func IoctlGetPtmget(fd int, req uint) (*Ptmget, error) {
var value Ptmget
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))

4
vendor/golang.org/x/sys/unix/syscall_openbsd.go generated vendored
View File

@ -18,8 +18,6 @@ import (
"unsafe"
)
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
type SockaddrDatalink struct {
Len uint8
@ -180,6 +178,8 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
//sys ioctl(fd int, req uint, arg uintptr) (err error)
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
//sys ppoll(fds *PollFd, nfds int, timeout *Timespec, sigmask *Sigset_t) (n int, err error)
func Ppoll(fds []PollFd, timeout *Timespec, sigmask *Sigset_t) (n int, err error) {

2
vendor/golang.org/x/sys/unix/syscall_solaris.go generated vendored
View File

@ -391,7 +391,7 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
for n < len(pp.Path) && pp.Path[n] != 0 {
n++
}
bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
sa.Name = string(bytes)
return sa, nil

32
vendor/golang.org/x/sys/unix/zsyscall_darwin_386.1_11.go generated vendored
View File

@ -547,6 +547,22 @@ func ioctl(fd int, req uint, arg uintptr) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := Syscall6(SYS_SYSCTL, uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) {
_, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(offset>>32), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags), 0, 0)
if e1 != 0 {
@ -1683,22 +1699,6 @@ func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := Syscall6(SYS___SYSCTL, uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func ptrace(request int, pid int, addr uintptr, data uintptr) (err error) {
_, _, e1 := Syscall6(SYS_PTRACE, uintptr(request), uintptr(pid), uintptr(addr), uintptr(data), 0, 0)
if e1 != 0 {

42
vendor/golang.org/x/sys/unix/zsyscall_darwin_386.go generated vendored
View File

@ -757,6 +757,27 @@ func libc_ioctl_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := syscall_syscall6(funcPC(libc_sysctl_trampoline), uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
func libc_sysctl_trampoline()
//go:linkname libc_sysctl libc_sysctl
//go:cgo_import_dynamic libc_sysctl sysctl "/usr/lib/libSystem.B.dylib"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) {
_, _, e1 := syscall_syscall9(funcPC(libc_sendfile_trampoline), uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(offset>>32), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags), 0, 0)
if e1 != 0 {
@ -2321,27 +2342,6 @@ func writelen(fd int, buf *byte, nbuf int) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := syscall_syscall6(funcPC(libc___sysctl_trampoline), uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
func libc___sysctl_trampoline()
//go:linkname libc___sysctl libc___sysctl
//go:cgo_import_dynamic libc___sysctl __sysctl "/usr/lib/libSystem.B.dylib"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func ptrace(request int, pid int, addr uintptr, data uintptr) (err error) {
_, _, e1 := syscall_syscall6(funcPC(libc_ptrace_trampoline), uintptr(request), uintptr(pid), uintptr(addr), uintptr(data), 0, 0)
if e1 != 0 {

6
vendor/golang.org/x/sys/unix/zsyscall_darwin_386.s generated vendored
View File

@ -40,6 +40,8 @@ TEXT ·libc_sendmsg_trampoline(SB),NOSPLIT,$0-0
JMP libc_sendmsg(SB)
TEXT ·libc_kevent_trampoline(SB),NOSPLIT,$0-0
JMP libc_kevent(SB)
TEXT ·libc___sysctl_trampoline(SB),NOSPLIT,$0-0
JMP libc___sysctl(SB)
TEXT ·libc_utimes_trampoline(SB),NOSPLIT,$0-0
JMP libc_utimes(SB)
TEXT ·libc_futimes_trampoline(SB),NOSPLIT,$0-0
@ -104,8 +106,6 @@ TEXT ·libc_chown_trampoline(SB),NOSPLIT,$0-0
JMP libc_chown(SB)
TEXT ·libc_chroot_trampoline(SB),NOSPLIT,$0-0
JMP libc_chroot(SB)
TEXT ·libc_clock_gettime_trampoline(SB),NOSPLIT,$0-0
JMP libc_clock_gettime(SB)
TEXT ·libc_close_trampoline(SB),NOSPLIT,$0-0
JMP libc_close(SB)
TEXT ·libc_dup_trampoline(SB),NOSPLIT,$0-0
@ -262,8 +262,6 @@ TEXT ·libc_mmap_trampoline(SB),NOSPLIT,$0-0
JMP libc_mmap(SB)
TEXT ·libc_munmap_trampoline(SB),NOSPLIT,$0-0
JMP libc_munmap(SB)
TEXT ·libc___sysctl_trampoline(SB),NOSPLIT,$0-0
JMP libc___sysctl(SB)
TEXT ·libc_ptrace_trampoline(SB),NOSPLIT,$0-0
JMP libc_ptrace(SB)
TEXT ·libc_gettimeofday_trampoline(SB),NOSPLIT,$0-0

32
vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.1_11.go generated vendored
View File

@ -547,6 +547,22 @@ func ioctl(fd int, req uint, arg uintptr) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := Syscall6(SYS_SYSCTL, uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) {
_, _, e1 := Syscall6(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags))
if e1 != 0 {
@ -1683,22 +1699,6 @@ func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := Syscall6(SYS___SYSCTL, uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func ptrace(request int, pid int, addr uintptr, data uintptr) (err error) {
_, _, e1 := Syscall6(SYS_PTRACE, uintptr(request), uintptr(pid), uintptr(addr), uintptr(data), 0, 0)
if e1 != 0 {

42
vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go generated vendored
View File

@ -757,6 +757,27 @@ func libc_ioctl_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := syscall_syscall6(funcPC(libc_sysctl_trampoline), uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
func libc_sysctl_trampoline()
//go:linkname libc_sysctl libc_sysctl
//go:cgo_import_dynamic libc_sysctl sysctl "/usr/lib/libSystem.B.dylib"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) {
_, _, e1 := syscall_syscall6(funcPC(libc_sendfile_trampoline), uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags))
if e1 != 0 {
@ -2321,27 +2342,6 @@ func writelen(fd int, buf *byte, nbuf int) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := syscall_syscall6(funcPC(libc___sysctl_trampoline), uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
func libc___sysctl_trampoline()
//go:linkname libc___sysctl libc___sysctl
//go:cgo_import_dynamic libc___sysctl __sysctl "/usr/lib/libSystem.B.dylib"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func ptrace(request int, pid int, addr uintptr, data uintptr) (err error) {
_, _, e1 := syscall_syscall6(funcPC(libc_ptrace_trampoline), uintptr(request), uintptr(pid), uintptr(addr), uintptr(data), 0, 0)
if e1 != 0 {

4
vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.s generated vendored
View File

@ -40,6 +40,8 @@ TEXT ·libc_sendmsg_trampoline(SB),NOSPLIT,$0-0
JMP libc_sendmsg(SB)
TEXT ·libc_kevent_trampoline(SB),NOSPLIT,$0-0
JMP libc_kevent(SB)
TEXT ·libc___sysctl_trampoline(SB),NOSPLIT,$0-0
JMP libc___sysctl(SB)
TEXT ·libc_utimes_trampoline(SB),NOSPLIT,$0-0
JMP libc_utimes(SB)
TEXT ·libc_futimes_trampoline(SB),NOSPLIT,$0-0
@ -262,8 +264,6 @@ TEXT ·libc_mmap_trampoline(SB),NOSPLIT,$0-0
JMP libc_mmap(SB)
TEXT ·libc_munmap_trampoline(SB),NOSPLIT,$0-0
JMP libc_munmap(SB)
TEXT ·libc___sysctl_trampoline(SB),NOSPLIT,$0-0
JMP libc___sysctl(SB)
TEXT ·libc_ptrace_trampoline(SB),NOSPLIT,$0-0
JMP libc_ptrace(SB)
TEXT ·libc_gettimeofday_trampoline(SB),NOSPLIT,$0-0

16
vendor/golang.org/x/sys/unix/zsyscall_darwin_arm.1_11.go generated vendored
View File

@ -547,6 +547,22 @@ func ioctl(fd int, req uint, arg uintptr) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := Syscall6(SYS_SYSCTL, uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) {
_, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(offset>>32), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags), 0, 0)
if e1 != 0 {

21
vendor/golang.org/x/sys/unix/zsyscall_darwin_arm.go generated vendored
View File

@ -757,6 +757,27 @@ func libc_ioctl_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := syscall_syscall6(funcPC(libc_sysctl_trampoline), uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
func libc_sysctl_trampoline()
//go:linkname libc_sysctl libc_sysctl
//go:cgo_import_dynamic libc_sysctl sysctl "/usr/lib/libSystem.B.dylib"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) {
_, _, e1 := syscall_syscall9(funcPC(libc_sendfile_trampoline), uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(offset>>32), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags), 0, 0)
if e1 != 0 {

16
vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.1_11.go generated vendored
View File

@ -547,6 +547,22 @@ func ioctl(fd int, req uint, arg uintptr) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := Syscall6(SYS_SYSCTL, uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) {
_, _, e1 := Syscall6(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags))
if e1 != 0 {

21
vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.go generated vendored
View File

@ -757,6 +757,27 @@ func libc_ioctl_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
var _p0 unsafe.Pointer
if len(mib) > 0 {
_p0 = unsafe.Pointer(&mib[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := syscall_syscall6(funcPC(libc_sysctl_trampoline), uintptr(_p0), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
func libc_sysctl_trampoline()
//go:linkname libc_sysctl libc_sysctl
//go:cgo_import_dynamic libc_sysctl sysctl "/usr/lib/libSystem.B.dylib"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) {
_, _, e1 := syscall_syscall6(funcPC(libc_sendfile_trampoline), uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags))
if e1 != 0 {

4
vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.s generated vendored
View File

@ -40,6 +40,8 @@ TEXT ·libc_sendmsg_trampoline(SB),NOSPLIT,$0-0
JMP libc_sendmsg(SB)
TEXT ·libc_kevent_trampoline(SB),NOSPLIT,$0-0
JMP libc_kevent(SB)
TEXT ·libc___sysctl_trampoline(SB),NOSPLIT,$0-0
JMP libc___sysctl(SB)
TEXT ·libc_utimes_trampoline(SB),NOSPLIT,$0-0
JMP libc_utimes(SB)
TEXT ·libc_futimes_trampoline(SB),NOSPLIT,$0-0
@ -104,8 +106,6 @@ TEXT ·libc_chown_trampoline(SB),NOSPLIT,$0-0
JMP libc_chown(SB)
TEXT ·libc_chroot_trampoline(SB),NOSPLIT,$0-0
JMP libc_chroot(SB)
TEXT ·libc_clock_gettime_trampoline(SB),NOSPLIT,$0-0
JMP libc_clock_gettime(SB)
TEXT ·libc_close_trampoline(SB),NOSPLIT,$0-0
JMP libc_close(SB)
TEXT ·libc_dup_trampoline(SB),NOSPLIT,$0-0

25
vendor/golang.org/x/tools/go/internal/gcimporter/iexport.go generated vendored
View File

@ -26,7 +26,10 @@ import (
const iexportVersion = 0
// IExportData returns the binary export data for pkg.
//
// If no file set is provided, position info will be missing.
// The package path of the top-level package will not be recorded,
// so that calls to IImportData can override with a provided package path.
func IExportData(fset *token.FileSet, pkg *types.Package) (b []byte, err error) {
defer func() {
if e := recover(); e != nil {
@ -46,6 +49,7 @@ func IExportData(fset *token.FileSet, pkg *types.Package) (b []byte, err error)
stringIndex: map[string]uint64{},
declIndex: map[types.Object]uint64{},
typIndex: map[types.Type]uint64{},
localpkg: pkg,
}
for i, pt := range predeclared() {
@ -71,7 +75,7 @@ func IExportData(fset *token.FileSet, pkg *types.Package) (b []byte, err error)
// Append indices to data0 section.
dataLen := uint64(p.data0.Len())
w := p.newWriter()
w.writeIndex(p.declIndex, pkg)
w.writeIndex(p.declIndex)
w.flush()
// Assemble header.
@ -93,14 +97,14 @@ func IExportData(fset *token.FileSet, pkg *types.Package) (b []byte, err error)
// we're writing out the main index, which is also read by
// non-compiler tools and includes a complete package description
// (i.e., name and height).
func (w *exportWriter) writeIndex(index map[types.Object]uint64, localpkg *types.Package) {
func (w *exportWriter) writeIndex(index map[types.Object]uint64) {
// Build a map from packages to objects from that package.
pkgObjs := map[*types.Package][]types.Object{}
// For the main index, make sure to include every package that
// we reference, even if we're not exporting (or reexporting)
// any symbols from it.
pkgObjs[localpkg] = nil
pkgObjs[w.p.localpkg] = nil
for pkg := range w.p.allPkgs {
pkgObjs[pkg] = nil
}
@ -119,12 +123,12 @@ func (w *exportWriter) writeIndex(index map[types.Object]uint64, localpkg *types
}
sort.Slice(pkgs, func(i, j int) bool {
return pkgs[i].Path() < pkgs[j].Path()
return w.exportPath(pkgs[i]) < w.exportPath(pkgs[j])
})
w.uint64(uint64(len(pkgs)))
for _, pkg := range pkgs {
w.string(pkg.Path())
w.string(w.exportPath(pkg))
w.string(pkg.Name())
w.uint64(uint64(0)) // package height is not needed for go/types
@ -141,6 +145,8 @@ type iexporter struct {
fset *token.FileSet
out *bytes.Buffer
localpkg *types.Package
// allPkgs tracks all packages that have been referenced by
// the export data, so we can ensure to include them in the
// main index.
@ -193,6 +199,13 @@ type exportWriter struct {
prevLine int64
}
func (w *exportWriter) exportPath(pkg *types.Package) string {
if pkg == w.p.localpkg {
return ""
}
return pkg.Path()
}
func (p *iexporter) doDecl(obj types.Object) {
w := p.newWriter()
w.setPkg(obj.Pkg(), false)
@ -302,7 +315,7 @@ func (w *exportWriter) pkg(pkg *types.Package) {
// Ensure any referenced packages are declared in the main index.
w.p.allPkgs[pkg] = true
w.string(pkg.Path())
w.string(w.exportPath(pkg))
}
func (w *exportWriter) qualifiedIdent(obj types.Object) {

28
vendor/golang.org/x/tools/go/internal/gcimporter/iimport.go generated vendored
View File

@ -147,24 +147,14 @@ func IImportData(fset *token.FileSet, imports map[string]*types.Package, data []
errorf("no packages found for %s", path)
panic("unreachable")
}
var localpkg *types.Package
for _, pkg := range pkgList {
if pkg.Path() == path {
localpkg = pkg
break
}
}
if localpkg == nil {
localpkg = pkgList[0]
}
names := make([]string, 0, len(p.pkgIndex[localpkg]))
for name := range p.pkgIndex[localpkg] {
p.ipkg = pkgList[0]
names := make([]string, 0, len(p.pkgIndex[p.ipkg]))
for name := range p.pkgIndex[p.ipkg] {
names = append(names, name)
}
sort.Strings(names)
for _, name := range names {
p.doDecl(localpkg, name)
p.doDecl(p.ipkg, name)
}
for _, typ := range p.interfaceList {
@ -174,17 +164,18 @@ func IImportData(fset *token.FileSet, imports map[string]*types.Package, data []
// record all referenced packages as imports
list := append(([]*types.Package)(nil), pkgList[1:]...)
sort.Sort(byPath(list))
localpkg.SetImports(list)
p.ipkg.SetImports(list)
// package was imported completely and without errors
localpkg.MarkComplete()
p.ipkg.MarkComplete()
consumed, _ := r.Seek(0, io.SeekCurrent)
return int(consumed), localpkg, nil
return int(consumed), p.ipkg, nil
}
type iimporter struct {
ipath string
ipkg *types.Package
version int
stringData []byte
@ -236,6 +227,9 @@ func (p *iimporter) pkgAt(off uint64) *types.Package {
return pkg
}
path := p.stringAt(off)
if path == p.ipath {
return p.ipkg
}
errorf("missing package %q in %q", path, p.ipath)
return nil
}

186
vendor/golang.org/x/tools/go/packages/golist.go generated vendored
View File

@ -26,6 +26,7 @@ import (
"golang.org/x/tools/go/internal/packagesdriver"
"golang.org/x/tools/internal/gopathwalk"
"golang.org/x/tools/internal/semver"
"golang.org/x/tools/internal/span"
)
// debug controls verbose logging.
@ -281,30 +282,42 @@ func runContainsQueries(cfg *Config, driver driver, response *responseDeduper, q
return fmt.Errorf("could not determine absolute path of file= query path %q: %v", query, err)
}
dirResponse, err := driver(cfg, pattern)
if err != nil || (len(dirResponse.Packages) == 1 && len(dirResponse.Packages[0].Errors) == 1) {
// There was an error loading the package. Try to load the file as an ad-hoc package.
// Usually the error will appear in a returned package, but may not if we're in modules mode
// and the ad-hoc is located outside a module.
if err != nil {
var queryErr error
dirResponse, queryErr = driver(cfg, query)
if queryErr != nil {
// Return the original error if the attempt to fall back failed.
return err
if dirResponse, queryErr = adHocPackage(cfg, driver, pattern, query); queryErr != nil {
return err // return the original error
}
// Special case to handle issue #33482:
// If this is a file= query for ad-hoc packages where the file only exists on an overlay,
// and exists outside of a module, add the file in for the package.
if len(dirResponse.Packages) == 1 && len(dirResponse.Packages) == 1 &&
dirResponse.Packages[0].ID == "command-line-arguments" && len(dirResponse.Packages[0].GoFiles) == 0 {
filename := filepath.Join(pattern, filepath.Base(query)) // avoid recomputing abspath
// TODO(matloob): check if the file is outside of a root dir?
for path := range cfg.Overlay {
if path == filename {
dirResponse.Packages[0].Errors = nil
dirResponse.Packages[0].GoFiles = []string{path}
dirResponse.Packages[0].CompiledGoFiles = []string{path}
}
}
// `go list` can report errors for files that are not listed as part of a package's GoFiles.
// In the case of an invalid Go file, we should assume that it is part of package if only
// one package is in the response. The file may have valid contents in an overlay.
if len(dirResponse.Packages) == 1 {
pkg := dirResponse.Packages[0]
for i, err := range pkg.Errors {
s := errorSpan(err)
if !s.IsValid() {
break
}
if len(pkg.CompiledGoFiles) == 0 {
break
}
dir := filepath.Dir(pkg.CompiledGoFiles[0])
filename := filepath.Join(dir, filepath.Base(s.URI().Filename()))
if info, err := os.Stat(filename); err != nil || info.IsDir() {
break
}
if !contains(pkg.CompiledGoFiles, filename) {
pkg.CompiledGoFiles = append(pkg.CompiledGoFiles, filename)
pkg.GoFiles = append(pkg.GoFiles, filename)
pkg.Errors = append(pkg.Errors[:i], pkg.Errors[i+1:]...)
}
}
}
// A final attempt to construct an ad-hoc package.
if len(dirResponse.Packages) == 1 && len(dirResponse.Packages[0].Errors) == 1 {
var queryErr error
if dirResponse, queryErr = adHocPackage(cfg, driver, pattern, query); queryErr != nil {
return err // return the original error
}
}
isRoot := make(map[string]bool, len(dirResponse.Roots))
@ -332,6 +345,74 @@ func runContainsQueries(cfg *Config, driver driver, response *responseDeduper, q
return nil
}
// adHocPackage attempts to construct an ad-hoc package given a query that failed.
func adHocPackage(cfg *Config, driver driver, pattern, query string) (*driverResponse, error) {
// There was an error loading the package. Try to load the file as an ad-hoc package.
// Usually the error will appear in a returned package, but may not if we're in modules mode
// and the ad-hoc is located outside a module.
dirResponse, err := driver(cfg, query)
if err != nil {
return nil, err
}
// If we get nothing back from `go list`, try to make this file into its own ad-hoc package.
if len(dirResponse.Packages) == 0 && err == nil {
dirResponse.Packages = append(dirResponse.Packages, &Package{
ID: "command-line-arguments",
PkgPath: query,
GoFiles: []string{query},
CompiledGoFiles: []string{query},
Imports: make(map[string]*Package),
})
dirResponse.Roots = append(dirResponse.Roots, "command-line-arguments")
}
// Special case to handle issue #33482:
// If this is a file= query for ad-hoc packages where the file only exists on an overlay,
// and exists outside of a module, add the file in for the package.
if len(dirResponse.Packages) == 1 && (dirResponse.Packages[0].ID == "command-line-arguments" || dirResponse.Packages[0].PkgPath == filepath.ToSlash(query)) {
if len(dirResponse.Packages[0].GoFiles) == 0 {
filename := filepath.Join(pattern, filepath.Base(query)) // avoid recomputing abspath
// TODO(matloob): check if the file is outside of a root dir?
for path := range cfg.Overlay {
if path == filename {
dirResponse.Packages[0].Errors = nil
dirResponse.Packages[0].GoFiles = []string{path}
dirResponse.Packages[0].CompiledGoFiles = []string{path}
}
}
}
}
return dirResponse, nil
}
func contains(files []string, filename string) bool {
for _, f := range files {
if f == filename {
return true
}
}
return false
}
// errorSpan attempts to parse a standard `go list` error message
// by stripping off the trailing error message.
//
// It works only on errors whose message is prefixed by colon,
// followed by a space (": "). For example:
//
// attributes.go:13:1: expected 'package', found 'type'
//
func errorSpan(err Error) span.Span {
if err.Pos == "" {
input := strings.TrimSpace(err.Msg)
msgIndex := strings.Index(input, ": ")
if msgIndex < 0 {
return span.Parse(input)
}
return span.Parse(input[:msgIndex])
}
return span.Parse(err.Pos)
}
// modCacheRegexp splits a path in a module cache into module, module version, and package.
var modCacheRegexp = regexp.MustCompile(`(.*)@([^/\\]*)(.*)`)
@ -395,6 +476,10 @@ func runNamedQueries(cfg *Config, driver driver, response *responseDeduper, quer
}
files, err := ioutil.ReadDir(modRoot)
if err != nil {
panic(err) // See above.
}
for _, f := range files {
if strings.HasSuffix(f.Name(), ".go") {
simpleMatches = append(simpleMatches, rel)
@ -462,7 +547,7 @@ func runNamedQueries(cfg *Config, driver driver, response *responseDeduper, quer
// We're only trying to look at stuff in the module cache, so
// disable the network. This should speed things up, and has
// prevented errors in at least one case, #28518.
tmpCfg.Env = append(append([]string{"GOPROXY=off"}, cfg.Env...))
tmpCfg.Env = append([]string{"GOPROXY=off"}, cfg.Env...)
var err error
tmpCfg.Dir, err = ioutil.TempDir("", "gopackages-modquery")
@ -510,17 +595,29 @@ func roots(cfg *Config) ([]gopathwalk.Root, string, error) {
var roots []gopathwalk.Root
// Always add GOROOT.
roots = append(roots, gopathwalk.Root{filepath.Join(goroot, "/src"), gopathwalk.RootGOROOT})
roots = append(roots, gopathwalk.Root{
Path: filepath.Join(goroot, "/src"),
Type: gopathwalk.RootGOROOT,
})
// If modules are enabled, scan the module dir.
if modDir != "" {
roots = append(roots, gopathwalk.Root{modDir, gopathwalk.RootCurrentModule})
roots = append(roots, gopathwalk.Root{
Path: modDir,
Type: gopathwalk.RootCurrentModule,
})
}
// Add either GOPATH/src or GOPATH/pkg/mod, depending on module mode.
for _, p := range gopath {
if modDir != "" {
roots = append(roots, gopathwalk.Root{filepath.Join(p, "/pkg/mod"), gopathwalk.RootModuleCache})
roots = append(roots, gopathwalk.Root{
Path: filepath.Join(p, "/pkg/mod"),
Type: gopathwalk.RootModuleCache,
})
} else {
roots = append(roots, gopathwalk.Root{filepath.Join(p, "/src"), gopathwalk.RootGOPATH})
roots = append(roots, gopathwalk.Root{
Path: filepath.Join(p, "/src"),
Type: gopathwalk.RootGOPATH,
})
}
}
@ -682,7 +779,7 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv
// contained in a known module or GOPATH entry. This will allow the package to be
// properly "reclaimed" when overlays are processed.
if filepath.IsAbs(p.ImportPath) && p.Error != nil {
pkgPath, ok := getPkgPath(p.ImportPath, rootsDirs)
pkgPath, ok := getPkgPath(cfg, p.ImportPath, rootsDirs)
if ok {
p.ImportPath = pkgPath
}
@ -792,15 +889,31 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv
}
// getPkgPath finds the package path of a directory if it's relative to a root directory.
func getPkgPath(dir string, goInfo func() *goInfo) (string, bool) {
func getPkgPath(cfg *Config, dir string, goInfo func() *goInfo) (string, bool) {
absDir, err := filepath.Abs(dir)
if err != nil {
cfg.Logf("error getting absolute path of %s: %v", dir, err)
return "", false
}
for rdir, rpath := range goInfo().rootDirs {
absRdir, err := filepath.Abs(rdir)
if err != nil {
cfg.Logf("error getting absolute path of %s: %v", rdir, err)
continue
}
// Make sure that the directory is in the module,
// to avoid creating a path relative to another module.
if !strings.HasPrefix(absDir, absRdir) {
cfg.Logf("%s does not have prefix %s", absDir, absRdir)
continue
}
// TODO(matloob): This doesn't properly handle symlinks.
r, err := filepath.Rel(rdir, dir)
if err != nil {
continue
}
if rpath != "" {
// We choose only ore root even though the directory even it can belong in multiple modules
// We choose only one root even though the directory even it can belong in multiple modules
// or GOPATH entries. This is okay because we only need to work with absolute dirs when a
// file is missing from disk, for instance when gopls calls go/packages in an overlay.
// Once the file is saved, gopls, or the next invocation of the tool will get the correct
@ -808,6 +921,7 @@ func getPkgPath(dir string, goInfo func() *goInfo) (string, bool) {
// TODO(matloob): Implement module tiebreaking?
return path.Join(rpath, filepath.ToSlash(r)), true
}
return filepath.ToSlash(r), true
}
return "", false
}
@ -859,7 +973,7 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) {
cmd.Stdout = stdout
cmd.Stderr = stderr
defer func(start time.Time) {
cfg.Logf("%s for %v, stderr: <<%s>>\n", time.Since(start), cmdDebugStr(cmd, args...), stderr)
cfg.Logf("%s for %v, stderr: <<%s>> stdout: <<%s>>\n", time.Since(start), cmdDebugStr(cmd, args...), stderr, stdout)
}(time.Now())
if err := cmd.Run(); err != nil {
@ -896,7 +1010,7 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) {
// (the Graphic characters without spaces) and may also exclude the
// characters !"#$%&'()*,:;<=>?[\]^`{|} and the Unicode replacement character U+FFFD.
return unicode.IsOneOf([]*unicode.RangeTable{unicode.L, unicode.M, unicode.N, unicode.P, unicode.S}, r) &&
strings.IndexRune("!\"#$%&'()*,:;<=>?[\\]^`{|}\uFFFD", r) == -1
!strings.ContainsRune("!\"#$%&'()*,:;<=>?[\\]^`{|}\uFFFD", r)
}
if len(stderr.String()) > 0 && strings.HasPrefix(stderr.String(), "# ") {
if strings.HasPrefix(strings.TrimLeftFunc(stderr.String()[len("# "):], isPkgPathRune), "\n") {
@ -954,6 +1068,10 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) {
// status if there's a dependency on a package that doesn't exist. But it should return
// a zero exit status and set an error on that package.
if len(stderr.String()) > 0 && strings.Contains(stderr.String(), "no Go files in") {
// Don't clobber stdout if `go list` actually returned something.
if len(stdout.String()) > 0 {
return stdout, nil
}
// try to extract package name from string
stderrStr := stderr.String()
var importPath string
@ -987,12 +1105,6 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) {
if len(stderr.Bytes()) != 0 && os.Getenv("GOPACKAGESPRINTGOLISTERRORS") != "" {
fmt.Fprintf(os.Stderr, "%s stderr: <<%s>>\n", cmdDebugStr(cmd, args...), stderr)
}
// debugging
if false {
fmt.Fprintf(os.Stderr, "%s stdout: <<%s>>\n", cmdDebugStr(cmd, args...), stdout)
}
return stdout, nil
}

21
vendor/golang.org/x/tools/go/packages/golist_overlay.go generated vendored
View File

@ -6,7 +6,6 @@ import (
"fmt"
"go/parser"
"go/token"
"path"
"path/filepath"
"strconv"
"strings"
@ -87,26 +86,10 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func(
if pkg == nil {
// Try to find the module or gopath dir the file is contained in.
// Then for modules, add the module opath to the beginning.
var pkgPath string
for rdir, rpath := range rootDirs().rootDirs {
// TODO(matloob): This doesn't properly handle symlinks.
r, err := filepath.Rel(rdir, dir)
if err != nil {
continue
}
pkgPath = filepath.ToSlash(r)
if rpath != "" {
pkgPath = path.Join(rpath, pkgPath)
}
// We only create one new package even it can belong in multiple modules or GOPATH entries.
// This is okay because tools (such as the LSP) that use overlays will recompute the overlay
// once the file is saved, and golist will do the right thing.
// TODO(matloob): Implement module tiebreaking?
pkgPath, ok := getPkgPath(cfg, dir, rootDirs)
if !ok {
break
}
if pkgPath == "" {
continue
}
isXTest := strings.HasSuffix(pkgName, "_test")
if isXTest {
pkgPath += "_test"

6
vendor/golang.org/x/tools/internal/gopathwalk/walk.go generated vendored
View File

@ -16,6 +16,7 @@ import (
"os"
"path/filepath"
"strings"
"time"
"golang.org/x/tools/internal/fastwalk"
)
@ -83,8 +84,9 @@ func walkDir(root Root, add func(Root, string), skip func(root Root, dir string)
}
return
}
start := time.Now()
if opts.Debug {
log.Printf("scanning %s", root.Path)
log.Printf("gopathwalk: scanning %s", root.Path)
}
w := &walker{
root: root,
@ -98,7 +100,7 @@ func walkDir(root Root, add func(Root, string), skip func(root Root, dir string)
}
if opts.Debug {
log.Printf("scanned %s", root.Path)
log.Printf("gopathwalk: scanned %s in %v", root.Path, time.Since(start))
}
}

100
vendor/golang.org/x/tools/internal/span/parse.go generated vendored Normal file
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@ -0,0 +1,100 @@
// Copyright 2019 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 span
import (
"strconv"
"strings"
"unicode/utf8"
)
// Parse returns the location represented by the input.
// All inputs are valid locations, as they can always be a pure filename.
// The returned span will be normalized, and thus if printed may produce a
// different string.
func Parse(input string) Span {
// :0:0#0-0:0#0
valid := input
var hold, offset int
hadCol := false
suf := rstripSuffix(input)
if suf.sep == "#" {
offset = suf.num
suf = rstripSuffix(suf.remains)
}
if suf.sep == ":" {
valid = suf.remains
hold = suf.num
hadCol = true
suf = rstripSuffix(suf.remains)
}
switch {
case suf.sep == ":":
return New(NewURI(suf.remains), NewPoint(suf.num, hold, offset), Point{})
case suf.sep == "-":
// we have a span, fall out of the case to continue
default:
// separator not valid, rewind to either the : or the start
return New(NewURI(valid), NewPoint(hold, 0, offset), Point{})
}
// only the span form can get here
// at this point we still don't know what the numbers we have mean
// if have not yet seen a : then we might have either a line or a column depending
// on whether start has a column or not
// we build an end point and will fix it later if needed
end := NewPoint(suf.num, hold, offset)
hold, offset = 0, 0
suf = rstripSuffix(suf.remains)
if suf.sep == "#" {
offset = suf.num
suf = rstripSuffix(suf.remains)
}
if suf.sep != ":" {
// turns out we don't have a span after all, rewind
return New(NewURI(valid), end, Point{})
}
valid = suf.remains
hold = suf.num
suf = rstripSuffix(suf.remains)
if suf.sep != ":" {
// line#offset only
return New(NewURI(valid), NewPoint(hold, 0, offset), end)
}
// we have a column, so if end only had one number, it is also the column
if !hadCol {
end = NewPoint(suf.num, end.v.Line, end.v.Offset)
}
return New(NewURI(suf.remains), NewPoint(suf.num, hold, offset), end)
}
type suffix struct {
remains string
sep string
num int
}
func rstripSuffix(input string) suffix {
if len(input) == 0 {
return suffix{"", "", -1}
}
remains := input
num := -1
// first see if we have a number at the end
last := strings.LastIndexFunc(remains, func(r rune) bool { return r < '0' || r > '9' })
if last >= 0 && last < len(remains)-1 {
number, err := strconv.ParseInt(remains[last+1:], 10, 64)
if err == nil {
num = int(number)
remains = remains[:last+1]
}
}
// now see if we have a trailing separator
r, w := utf8.DecodeLastRuneInString(remains)
if r != ':' && r != '#' && r == '#' {
return suffix{input, "", -1}
}
remains = remains[:len(remains)-w]
return suffix{remains, string(r), num}
}

285
vendor/golang.org/x/tools/internal/span/span.go generated vendored Normal file
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@ -0,0 +1,285 @@
// Copyright 2019 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 span contains support for representing with positions and ranges in
// text files.
package span
import (
"encoding/json"
"fmt"
"path"
)
// Span represents a source code range in standardized form.
type Span struct {
v span
}
// Point represents a single point within a file.
// In general this should only be used as part of a Span, as on its own it
// does not carry enough information.
type Point struct {
v point
}
type span struct {
URI URI `json:"uri"`
Start point `json:"start"`
End point `json:"end"`
}
type point struct {
Line int `json:"line"`
Column int `json:"column"`
Offset int `json:"offset"`
}
// Invalid is a span that reports false from IsValid
var Invalid = Span{v: span{Start: invalidPoint.v, End: invalidPoint.v}}
var invalidPoint = Point{v: point{Line: 0, Column: 0, Offset: -1}}
// Converter is the interface to an object that can convert between line:column
// and offset forms for a single file.
type Converter interface {
//ToPosition converts from an offset to a line:column pair.
ToPosition(offset int) (int, int, error)
//ToOffset converts from a line:column pair to an offset.
ToOffset(line, col int) (int, error)
}
func New(uri URI, start Point, end Point) Span {
s := Span{v: span{URI: uri, Start: start.v, End: end.v}}
s.v.clean()
return s
}
func NewPoint(line, col, offset int) Point {
p := Point{v: point{Line: line, Column: col, Offset: offset}}
p.v.clean()
return p
}
func Compare(a, b Span) int {
if r := CompareURI(a.URI(), b.URI()); r != 0 {
return r
}
if r := comparePoint(a.v.Start, b.v.Start); r != 0 {
return r
}
return comparePoint(a.v.End, b.v.End)
}
func ComparePoint(a, b Point) int {
return comparePoint(a.v, b.v)
}
func comparePoint(a, b point) int {
if !a.hasPosition() {
if a.Offset < b.Offset {
return -1
}
if a.Offset > b.Offset {
return 1
}
return 0
}
if a.Line < b.Line {
return -1
}
if a.Line > b.Line {
return 1
}
if a.Column < b.Column {
return -1
}
if a.Column > b.Column {
return 1
}
return 0
}
func (s Span) HasPosition() bool { return s.v.Start.hasPosition() }
func (s Span) HasOffset() bool { return s.v.Start.hasOffset() }
func (s Span) IsValid() bool { return s.v.Start.isValid() }
func (s Span) IsPoint() bool { return s.v.Start == s.v.End }
func (s Span) URI() URI { return s.v.URI }
func (s Span) Start() Point { return Point{s.v.Start} }
func (s Span) End() Point { return Point{s.v.End} }
func (s *Span) MarshalJSON() ([]byte, error) { return json.Marshal(&s.v) }
func (s *Span) UnmarshalJSON(b []byte) error { return json.Unmarshal(b, &s.v) }
func (p Point) HasPosition() bool { return p.v.hasPosition() }
func (p Point) HasOffset() bool { return p.v.hasOffset() }
func (p Point) IsValid() bool { return p.v.isValid() }
func (p *Point) MarshalJSON() ([]byte, error) { return json.Marshal(&p.v) }
func (p *Point) UnmarshalJSON(b []byte) error { return json.Unmarshal(b, &p.v) }
func (p Point) Line() int {
if !p.v.hasPosition() {
panic(fmt.Errorf("position not set in %v", p.v))
}
return p.v.Line
}
func (p Point) Column() int {
if !p.v.hasPosition() {
panic(fmt.Errorf("position not set in %v", p.v))
}
return p.v.Column
}
func (p Point) Offset() int {
if !p.v.hasOffset() {
panic(fmt.Errorf("offset not set in %v", p.v))
}
return p.v.Offset
}
func (p point) hasPosition() bool { return p.Line > 0 }
func (p point) hasOffset() bool { return p.Offset >= 0 }
func (p point) isValid() bool { return p.hasPosition() || p.hasOffset() }
func (p point) isZero() bool {
return (p.Line == 1 && p.Column == 1) || (!p.hasPosition() && p.Offset == 0)
}
func (s *span) clean() {
//this presumes the points are already clean
if !s.End.isValid() || (s.End == point{}) {
s.End = s.Start
}
}
func (p *point) clean() {
if p.Line < 0 {
p.Line = 0
}
if p.Column <= 0 {
if p.Line > 0 {
p.Column = 1
} else {
p.Column = 0
}
}
if p.Offset == 0 && (p.Line > 1 || p.Column > 1) {
p.Offset = -1
}
}
// Format implements fmt.Formatter to print the Location in a standard form.
// The format produced is one that can be read back in using Parse.
func (s Span) Format(f fmt.State, c rune) {
fullForm := f.Flag('+')
preferOffset := f.Flag('#')
// we should always have a uri, simplify if it is file format
//TODO: make sure the end of the uri is unambiguous
uri := string(s.v.URI)
if c == 'f' {
uri = path.Base(uri)
} else if !fullForm {
uri = s.v.URI.Filename()
}
fmt.Fprint(f, uri)
if !s.IsValid() || (!fullForm && s.v.Start.isZero() && s.v.End.isZero()) {
return
}
// see which bits of start to write
printOffset := s.HasOffset() && (fullForm || preferOffset || !s.HasPosition())
printLine := s.HasPosition() && (fullForm || !printOffset)
printColumn := printLine && (fullForm || (s.v.Start.Column > 1 || s.v.End.Column > 1))
fmt.Fprint(f, ":")
if printLine {
fmt.Fprintf(f, "%d", s.v.Start.Line)
}
if printColumn {
fmt.Fprintf(f, ":%d", s.v.Start.Column)
}
if printOffset {
fmt.Fprintf(f, "#%d", s.v.Start.Offset)
}
// start is written, do we need end?
if s.IsPoint() {
return
}
// we don't print the line if it did not change
printLine = fullForm || (printLine && s.v.End.Line > s.v.Start.Line)
fmt.Fprint(f, "-")
if printLine {
fmt.Fprintf(f, "%d", s.v.End.Line)
}
if printColumn {
if printLine {
fmt.Fprint(f, ":")
}
fmt.Fprintf(f, "%d", s.v.End.Column)
}
if printOffset {
fmt.Fprintf(f, "#%d", s.v.End.Offset)
}
}
func (s Span) WithPosition(c Converter) (Span, error) {
if err := s.update(c, true, false); err != nil {
return Span{}, err
}
return s, nil
}
func (s Span) WithOffset(c Converter) (Span, error) {
if err := s.update(c, false, true); err != nil {
return Span{}, err
}
return s, nil
}
func (s Span) WithAll(c Converter) (Span, error) {
if err := s.update(c, true, true); err != nil {
return Span{}, err
}
return s, nil
}
func (s *Span) update(c Converter, withPos, withOffset bool) error {
if !s.IsValid() {
return fmt.Errorf("cannot add information to an invalid span")
}
if withPos && !s.HasPosition() {
if err := s.v.Start.updatePosition(c); err != nil {
return err
}
if s.v.End.Offset == s.v.Start.Offset {
s.v.End = s.v.Start
} else if err := s.v.End.updatePosition(c); err != nil {
return err
}
}
if withOffset && (!s.HasOffset() || (s.v.End.hasPosition() && !s.v.End.hasOffset())) {
if err := s.v.Start.updateOffset(c); err != nil {
return err
}
if s.v.End.Line == s.v.Start.Line && s.v.End.Column == s.v.Start.Column {
s.v.End.Offset = s.v.Start.Offset
} else if err := s.v.End.updateOffset(c); err != nil {
return err
}
}
return nil
}
func (p *point) updatePosition(c Converter) error {
line, col, err := c.ToPosition(p.Offset)
if err != nil {
return err
}
p.Line = line
p.Column = col
return nil
}
func (p *point) updateOffset(c Converter) error {
offset, err := c.ToOffset(p.Line, p.Column)
if err != nil {
return err
}
p.Offset = offset
return nil
}

151
vendor/golang.org/x/tools/internal/span/token.go generated vendored Normal file
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@ -0,0 +1,151 @@
// Copyright 2019 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 span
import (
"fmt"
"go/token"
)
// Range represents a source code range in token.Pos form.
// It also carries the FileSet that produced the positions, so that it is
// self contained.
type Range struct {
FileSet *token.FileSet
Start token.Pos
End token.Pos
}
// TokenConverter is a Converter backed by a token file set and file.
// It uses the file set methods to work out the conversions, which
// makes it fast and does not require the file contents.
type TokenConverter struct {
fset *token.FileSet
file *token.File
}
// NewRange creates a new Range from a FileSet and two positions.
// To represent a point pass a 0 as the end pos.
func NewRange(fset *token.FileSet, start, end token.Pos) Range {
return Range{
FileSet: fset,
Start: start,
End: end,
}
}
// NewTokenConverter returns an implementation of Converter backed by a
// token.File.
func NewTokenConverter(fset *token.FileSet, f *token.File) *TokenConverter {
return &TokenConverter{fset: fset, file: f}
}
// NewContentConverter returns an implementation of Converter for the
// given file content.
func NewContentConverter(filename string, content []byte) *TokenConverter {
fset := token.NewFileSet()
f := fset.AddFile(filename, -1, len(content))
f.SetLinesForContent(content)
return &TokenConverter{fset: fset, file: f}
}
// IsPoint returns true if the range represents a single point.
func (r Range) IsPoint() bool {
return r.Start == r.End
}
// Span converts a Range to a Span that represents the Range.
// It will fill in all the members of the Span, calculating the line and column
// information.
func (r Range) Span() (Span, error) {
f := r.FileSet.File(r.Start)
if f == nil {
return Span{}, fmt.Errorf("file not found in FileSet")
}
s := Span{v: span{URI: FileURI(f.Name())}}
var err error
s.v.Start.Offset, err = offset(f, r.Start)
if err != nil {
return Span{}, err
}
if r.End.IsValid() {
s.v.End.Offset, err = offset(f, r.End)
if err != nil {
return Span{}, err
}
}
s.v.Start.clean()
s.v.End.clean()
s.v.clean()
converter := NewTokenConverter(r.FileSet, f)
return s.WithPosition(converter)
}
// offset is a copy of the Offset function in go/token, but with the adjustment
// that it does not panic on invalid positions.
func offset(f *token.File, pos token.Pos) (int, error) {
if int(pos) < f.Base() || int(pos) > f.Base()+f.Size() {
return 0, fmt.Errorf("invalid pos")
}
return int(pos) - f.Base(), nil
}
// Range converts a Span to a Range that represents the Span for the supplied
// File.
func (s Span) Range(converter *TokenConverter) (Range, error) {
s, err := s.WithOffset(converter)
if err != nil {
return Range{}, err
}
// go/token will panic if the offset is larger than the file's size,
// so check here to avoid panicking.
if s.Start().Offset() > converter.file.Size() {
return Range{}, fmt.Errorf("start offset %v is past the end of the file %v", s.Start(), converter.file.Size())
}
if s.End().Offset() > converter.file.Size() {
return Range{}, fmt.Errorf("end offset %v is past the end of the file %v", s.End(), converter.file.Size())
}
return Range{
FileSet: converter.fset,
Start: converter.file.Pos(s.Start().Offset()),
End: converter.file.Pos(s.End().Offset()),
}, nil
}
func (l *TokenConverter) ToPosition(offset int) (int, int, error) {
if offset > l.file.Size() {
return 0, 0, fmt.Errorf("offset %v is past the end of the file %v", offset, l.file.Size())
}
pos := l.file.Pos(offset)
p := l.fset.Position(pos)
if offset == l.file.Size() {
return p.Line + 1, 1, nil
}
return p.Line, p.Column, nil
}
func (l *TokenConverter) ToOffset(line, col int) (int, error) {
if line < 0 {
return -1, fmt.Errorf("line is not valid")
}
lineMax := l.file.LineCount() + 1
if line > lineMax {
return -1, fmt.Errorf("line is beyond end of file %v", lineMax)
} else if line == lineMax {
if col > 1 {
return -1, fmt.Errorf("column is beyond end of file")
}
// at the end of the file, allowing for a trailing eol
return l.file.Size(), nil
}
pos := lineStart(l.file, line)
if !pos.IsValid() {
return -1, fmt.Errorf("line is not in file")
}
// we assume that column is in bytes here, and that the first byte of a
// line is at column 1
pos += token.Pos(col - 1)
return offset(l.file, pos)
}

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vendor/golang.org/x/tools/internal/span/token111.go generated vendored Normal file
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@ -0,0 +1,39 @@
// Copyright 2019 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.
// +build !go1.12
package span
import (
"go/token"
)
// lineStart is the pre-Go 1.12 version of (*token.File).LineStart. For Go
// versions <= 1.11, we borrow logic from the analysisutil package.
// TODO(rstambler): Delete this file when we no longer support Go 1.11.
func lineStart(f *token.File, line int) token.Pos {
// Use binary search to find the start offset of this line.
min := 0 // inclusive
max := f.Size() // exclusive
for {
offset := (min + max) / 2
pos := f.Pos(offset)
posn := f.Position(pos)
if posn.Line == line {
return pos - (token.Pos(posn.Column) - 1)
}
if min+1 >= max {
return token.NoPos
}
if posn.Line < line {
min = offset
} else {
max = offset
}
}
}

16
vendor/golang.org/x/tools/internal/span/token112.go generated vendored Normal file
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@ -0,0 +1,16 @@
// Copyright 2019 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.
// +build go1.12
package span
import (
"go/token"
)
// TODO(rstambler): Delete this file when we no longer support Go 1.11.
func lineStart(f *token.File, line int) token.Pos {
return f.LineStart(line)
}

152
vendor/golang.org/x/tools/internal/span/uri.go generated vendored Normal file
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@ -0,0 +1,152 @@
// Copyright 2019 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 span
import (
"fmt"
"net/url"
"os"
"path"
"path/filepath"
"runtime"
"strings"
"unicode"
)
const fileScheme = "file"
// URI represents the full URI for a file.
type URI string
// Filename returns the file path for the given URI.
// It is an error to call this on a URI that is not a valid filename.
func (uri URI) Filename() string {
filename, err := filename(uri)
if err != nil {
panic(err)
}
return filepath.FromSlash(filename)
}
func filename(uri URI) (string, error) {
if uri == "" {
return "", nil
}
u, err := url.ParseRequestURI(string(uri))
if err != nil {
return "", err
}
if u.Scheme != fileScheme {
return "", fmt.Errorf("only file URIs are supported, got %q from %q", u.Scheme, uri)
}
if isWindowsDriveURI(u.Path) {
u.Path = u.Path[1:]
}
return u.Path, nil
}
// NewURI returns a span URI for the string.
// It will attempt to detect if the string is a file path or uri.
func NewURI(s string) URI {
if u, err := url.PathUnescape(s); err == nil {
s = u
}
if strings.HasPrefix(s, fileScheme+"://") {
return URI(s)
}
return FileURI(s)
}
func CompareURI(a, b URI) int {
if equalURI(a, b) {
return 0
}
if a < b {
return -1
}
return 1
}
func equalURI(a, b URI) bool {
if a == b {
return true
}
// If we have the same URI basename, we may still have the same file URIs.
if !strings.EqualFold(path.Base(string(a)), path.Base(string(b))) {
return false
}
fa, err := filename(a)
if err != nil {
return false
}
fb, err := filename(b)
if err != nil {
return false
}
// Stat the files to check if they are equal.
infoa, err := os.Stat(filepath.FromSlash(fa))
if err != nil {
return false
}
infob, err := os.Stat(filepath.FromSlash(fb))
if err != nil {
return false
}
return os.SameFile(infoa, infob)
}
// FileURI returns a span URI for the supplied file path.
// It will always have the file scheme.
func FileURI(path string) URI {
if path == "" {
return ""
}
// Handle standard library paths that contain the literal "$GOROOT".
// TODO(rstambler): The go/packages API should allow one to determine a user's $GOROOT.
const prefix = "$GOROOT"
if len(path) >= len(prefix) && strings.EqualFold(prefix, path[:len(prefix)]) {
suffix := path[len(prefix):]
path = runtime.GOROOT() + suffix
}
if !isWindowsDrivePath(path) {
if abs, err := filepath.Abs(path); err == nil {
path = abs
}
}
// Check the file path again, in case it became absolute.
if isWindowsDrivePath(path) {
path = "/" + path
}
path = filepath.ToSlash(path)
u := url.URL{
Scheme: fileScheme,
Path: path,
}
uri := u.String()
if unescaped, err := url.PathUnescape(uri); err == nil {
uri = unescaped
}
return URI(uri)
}
// isWindowsDrivePath returns true if the file path is of the form used by
// Windows. We check if the path begins with a drive letter, followed by a ":".
func isWindowsDrivePath(path string) bool {
if len(path) < 4 {
return false
}
return unicode.IsLetter(rune(path[0])) && path[1] == ':'
}
// isWindowsDriveURI returns true if the file URI is of the format used by
// Windows URIs. The url.Parse package does not specially handle Windows paths
// (see https://golang.org/issue/6027). We check if the URI path has
// a drive prefix (e.g. "/C:"). If so, we trim the leading "/".
func isWindowsDriveURI(uri string) bool {
if len(uri) < 4 {
return false
}
return uri[0] == '/' && unicode.IsLetter(rune(uri[1])) && uri[2] == ':'
}

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vendor/golang.org/x/tools/internal/span/utf16.go generated vendored Normal file
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// Copyright 2019 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 span
import (
"fmt"
"unicode/utf16"
"unicode/utf8"
)
// ToUTF16Column calculates the utf16 column expressed by the point given the
// supplied file contents.
// This is used to convert from the native (always in bytes) column
// representation and the utf16 counts used by some editors.
func ToUTF16Column(p Point, content []byte) (int, error) {
if content == nil {
return -1, fmt.Errorf("ToUTF16Column: missing content")
}
if !p.HasPosition() {
return -1, fmt.Errorf("ToUTF16Column: point is missing position")
}
if !p.HasOffset() {
return -1, fmt.Errorf("ToUTF16Column: point is missing offset")
}
offset := p.Offset() // 0-based
colZero := p.Column() - 1 // 0-based
if colZero == 0 {
// 0-based column 0, so it must be chr 1
return 1, nil
} else if colZero < 0 {
return -1, fmt.Errorf("ToUTF16Column: column is invalid (%v)", colZero)
}
// work out the offset at the start of the line using the column
lineOffset := offset - colZero
if lineOffset < 0 || offset > len(content) {
return -1, fmt.Errorf("ToUTF16Column: offsets %v-%v outside file contents (%v)", lineOffset, offset, len(content))
}
// Use the offset to pick out the line start.
// This cannot panic: offset > len(content) and lineOffset < offset.
start := content[lineOffset:]
// Now, truncate down to the supplied column.
start = start[:colZero]
// and count the number of utf16 characters
// in theory we could do this by hand more efficiently...
return len(utf16.Encode([]rune(string(start)))) + 1, nil
}
// FromUTF16Column advances the point by the utf16 character offset given the
// supplied line contents.
// This is used to convert from the utf16 counts used by some editors to the
// native (always in bytes) column representation.
func FromUTF16Column(p Point, chr int, content []byte) (Point, error) {
if !p.HasOffset() {
return Point{}, fmt.Errorf("FromUTF16Column: point is missing offset")
}
// if chr is 1 then no adjustment needed
if chr <= 1 {
return p, nil
}
if p.Offset() >= len(content) {
return p, fmt.Errorf("FromUTF16Column: offset (%v) greater than length of content (%v)", p.Offset(), len(content))
}
remains := content[p.Offset():]
// scan forward the specified number of characters
for count := 1; count < chr; count++ {
if len(remains) <= 0 {
return Point{}, fmt.Errorf("FromUTF16Column: chr goes beyond the content")
}
r, w := utf8.DecodeRune(remains)
if r == '\n' {
// Per the LSP spec:
//
// > If the character value is greater than the line length it
// > defaults back to the line length.
break
}
remains = remains[w:]
if r >= 0x10000 {
// a two point rune
count++
// if we finished in a two point rune, do not advance past the first
if count >= chr {
break
}
}
p.v.Column += w
p.v.Offset += w
}
return p, nil
}