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This commit is contained in:
a 2023-01-15 20:07:04 -06:00
parent 159932ff3e
commit c7953f8ee1
1238 changed files with 16 additions and 474105 deletions
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21
LICENSE
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@ -1,21 +0,0 @@
MIT License
Copyright (c) 2021 Liam Galvin
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

8
Makefile
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@ -1,7 +1,7 @@
default: build darktile: cmd/**/* internal/**/*
go build -o darktile ./cmd/darktile
build: clean:
./scripts/build.sh rm darktile

1
go.mod
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@ -18,4 +18,5 @@ require (
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1
gopkg.in/yaml.v2 v2.4.0 gopkg.in/yaml.v2 v2.4.0
mvdan.cc/xurls v1.1.0 mvdan.cc/xurls v1.1.0
sigs.k8s.io/yaml v1.1.0
) )

1
go.sum
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@ -573,5 +573,6 @@ honnef.co/go/tools v0.1.3/go.mod h1:NgwopIslSNH47DimFoV78dnkksY2EFtX0ajyb3K/las=
mvdan.cc/xurls v1.1.0 h1:kj0j2lonKseISJCiq1Tfk+iTv65dDGCl0rTbanXJGGc= mvdan.cc/xurls v1.1.0 h1:kj0j2lonKseISJCiq1Tfk+iTv65dDGCl0rTbanXJGGc=
mvdan.cc/xurls v1.1.0/go.mod h1:TNWuhvo+IqbUCmtUIb/3LJSQdrzel8loVpgFm0HikbI= mvdan.cc/xurls v1.1.0/go.mod h1:TNWuhvo+IqbUCmtUIb/3LJSQdrzel8loVpgFm0HikbI=
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8= rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o= sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU= sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=

20
internal/app/darktile/config/config.go
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@ -6,28 +6,28 @@ import (
"os" "os"
"path" "path"
"gopkg.in/yaml.v2" "sigs.k8s.io/yaml"
) )
type Config struct { type Config struct {
Opacity float64 Opacity float64 `json:"opacity"`
Font Font Font Font `json:"font"`
Cursor Cursor Cursor Cursor `json:"cursor"`
} }
type Font struct { type Font struct {
Family string Family string `json:"family"`
Size float64 Size float64 `json:"size"`
DPI float64 DPI float64 `json:"dpi"`
Ligatures bool Ligatures bool `json:"ligatures"`
} }
type Cursor struct { type Cursor struct {
Image string Image string `json:"image"`
} }
type ErrorFileNotFound struct { type ErrorFileNotFound struct {
Path string Path string `json:"path"`
} }
func (e *ErrorFileNotFound) Error() string { func (e *ErrorFileNotFound) Error() string {

7
scripts/build.sh
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@ -1,7 +0,0 @@
#!/usr/bin/env bash
version=$(git describe --exact-match --tags 2>/dev/null || git describe 2>/dev/null || echo "prerelease")
go build \
-mod=vendor\
-ldflags="-X github.com/liamg/darktile/internal/app/darktile/version.Version=${version}" \
./cmd/darktile

23
vendor/git.wow.st/gmp/clip/README.md vendored
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@ -1,23 +0,0 @@
# Clip
A tiny library to access the MacOS clipboard (a.k.a. NSPasteboard).
```go
go get git.wow.st/gmp/clip
```
## API:
```go
package clip
// Clear clears the general pasteboard
func Clear()
// Set puts a string on the pasteboard, returning true if successful
func Set(string) bool
// Get retrieves the string currently on the pasteboard.
func Get() string
```

34
vendor/git.wow.st/gmp/clip/main.go vendored
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@ -1,34 +0,0 @@
package clip
import (
"git.wow.st/gmp/clip/ns"
)
var pb *ns.NSPasteboard
func Clear() {
if pb == nil {
pb = ns.NSPasteboardGeneralPasteboard()
}
pb.ClearContents()
}
func Set(x string) bool {
if pb == nil {
pb = ns.NSPasteboardGeneralPasteboard()
}
pb.ClearContents()
return pb.SetString(x)
}
func Get() string {
if pb == nil {
pb = ns.NSPasteboardGeneralPasteboard()
}
ret := pb.GetString()
if ret.Ptr() == nil {
return ""
} else {
return ret.String()
}
}

6056
vendor/git.wow.st/gmp/clip/ns/main.go- vendored
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211
vendor/git.wow.st/gmp/clip/ns/pasteboard.go vendored
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@ -1,211 +0,0 @@
package ns
/*
#cgo CFLAGS: -x objective-c -fno-objc-arc
#cgo LDFLAGS: -framework AppKit -framework Foundation
#pragma clang diagnostic ignored "-Wformat-security"
#import <Foundation/Foundation.h>
#import <AppKit/NSPasteboard.h>
void
NSObject_inst_Release(void* o) {
@autoreleasepool {
[(NSObject*)o release];
}
}
void
NSString_inst_Release(void* o) {
@autoreleasepool {
[(NSString*)o release];
}
}
const void* _Nullable
NSString_inst_UTF8String(void* o) {
const char* _Nullable ret;
@autoreleasepool {
ret = strdup([(NSString*)o UTF8String]);
}
return ret;
}
void
NSPasteboard_inst_Release(void* o) {
@autoreleasepool {
[(NSPasteboard*)o release];
}
}
void* _Nullable
NSString_StringWithUTF8String(void* nullTerminatedCString) {
NSString* _Nullable ret;
@autoreleasepool {
ret = [NSString stringWithUTF8String:nullTerminatedCString];
if(ret != nil) { [ret retain]; }
}
return ret;
}
void* _Nonnull
NSPasteboard_GeneralPasteboard() {
NSPasteboard* _Nonnull ret;
@autoreleasepool {
ret = [NSPasteboard generalPasteboard];
}
return ret;
}
void
NSPasteboard_inst_ClearContents(void* o) {
@autoreleasepool {
[(NSPasteboard*)o clearContents];
}
}
BOOL
NSPasteboard_inst_SetString(void* o, void* string) {
BOOL ret;
@autoreleasepool {
ret = [(NSPasteboard*)o setString:string forType:NSPasteboardTypeString];
}
return ret;
}
void* _Nullable
NSPasteboard_inst_GetString(void* o) {
NSString* _Nullable ret;
@autoreleasepool {
ret = [(NSPasteboard*)o stringForType:NSPasteboardTypeString];
if (ret != nil && ret != o) { [ret retain]; }
}
return ret;
}
*/
import "C"
import (
"unsafe"
"runtime"
)
type Id struct {
ptr unsafe.Pointer
}
func (o *Id) Ptr() unsafe.Pointer { if o == nil { return nil }; return o.ptr }
type NSObject interface {
Ptr() unsafe.Pointer
}
func (o *Id) Release() {
C.NSObject_inst_Release(o.Ptr())
runtime.KeepAlive(o)
}
func (o *NSPasteboard) Release() {
C.NSPasteboard_inst_Release(o.Ptr())
runtime.KeepAlive(o)
}
func (o *NSString) Release() {
C.NSString_inst_Release(o.Ptr())
runtime.KeepAlive(o)
}
func (c *Char) Free() {
C.free(unsafe.Pointer(c))
}
type BOOL C.uchar
type NSString struct { Id }
func (o *NSString) Ptr() unsafe.Pointer { if o == nil { return nil }; return o.ptr }
func (o *Id) NSString() *NSString {
return (*NSString)(unsafe.Pointer(o))
}
func (o *NSString) UTF8String() *Char {
ret := (*Char)(unsafe.Pointer(C.NSString_inst_UTF8String(o.Ptr())))
runtime.KeepAlive(o)
return ret
}
func (o *NSString) String() string {
utf8 := o.UTF8String()
ret := utf8.String()
utf8.Free()
runtime.KeepAlive(o)
return ret
}
type NSPasteboard struct { Id }
func (o *NSPasteboard) Ptr() unsafe.Pointer { if o == nil { return nil }; return o.ptr }
func (o *Id) NSPasteboard() *NSPasteboard {
return (*NSPasteboard)(unsafe.Pointer(o))
}
type Char C.char
func CharWithGoString(s string) *Char {
return (*Char)(unsafe.Pointer(C.CString(s)))
}
func (c *Char) String() string {
return C.GoString((*C.char)(c))
}
func NSStringWithUTF8String(nullTerminatedCString *Char) *NSString {
ret := &NSString{}
ret.ptr = unsafe.Pointer(C.NSString_StringWithUTF8String(unsafe.Pointer(nullTerminatedCString)))
if ret.ptr == nil { return ret }
runtime.SetFinalizer(ret, func(o *NSString) {
o.Release()
})
return ret
}
func NSStringWithGoString(string string) *NSString {
string_chr := CharWithGoString(string)
defer string_chr.Free()
ret := NSStringWithUTF8String(string_chr)
return ret
}
func NSPasteboardGeneralPasteboard() *NSPasteboard {
ret := &NSPasteboard{}
ret.ptr = unsafe.Pointer(C.NSPasteboard_GeneralPasteboard())
if ret.ptr == nil { return ret }
return ret
}
func (o *NSPasteboard) ClearContents() {
C.NSPasteboard_inst_ClearContents(o.Ptr())
runtime.KeepAlive(o)
}
func (o *NSPasteboard) SetString(s string) bool {
string := NSStringWithGoString(s)
ret := (C.NSPasteboard_inst_SetString(o.Ptr(), string.Ptr())) != 0
runtime.KeepAlive(o)
runtime.KeepAlive(string)
return ret
}
func (o *NSPasteboard) GetString() *NSString {
ret := &NSString{}
ret.ptr = unsafe.Pointer(C.NSPasteboard_inst_GetString(o.Ptr()))
if ret.ptr == nil { runtime.KeepAlive(o); return ret }
if ret.ptr == o.ptr { runtime.KeepAlive(o); return (*NSString)(unsafe.Pointer(o)) }
runtime.SetFinalizer(ret, func(o *NSString) {
o.Release()
})
runtime.KeepAlive(o)
return ret
}

11
vendor/git.wow.st/gmp/clip/nswrap.yaml vendored
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@ -1,11 +0,0 @@
# binding generator for git.wow.st/gmp/nswrap
# original binding is in ns/main.go- and is not used.
inputfiles:
- /System/Library/Frameworks/AppKit.framework/Headers/NSPasteboard.h
classes:
- NSPasteboard
- NSString
enums:
- NSPasteboard.*
frameworks: [ AppKit, Foundation ]
pragma: [ clang diagnostic ignored "-Wformat-security" ]

2
vendor/github.com/BurntSushi/xgb/.gitignore generated vendored
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@ -1,2 +0,0 @@
xgbgen/xgbgen
.*.swp

18
vendor/github.com/BurntSushi/xgb/AUTHORS generated vendored
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@ -1,18 +0,0 @@
Andrew Gallant is the maintainer of this fork. What follows is the original
list of authors for the x-go-binding.
# This is the official list of XGB authors for copyright purposes.
# This file is distinct from the CONTRIBUTORS files.
# See the latter for an explanation.
# Names should be added to this file as
# Name or Organization <email address>
# The email address is not required for organizations.
# Please keep the list sorted.
Anthony Martin <ality@pbrane.org>
Firmansyah Adiputra <frm.adiputra@gmail.com>
Google Inc.
Scott Lawrence <bytbox@gmail.com>
Tor Andersson <tor.andersson@gmail.com>

39
vendor/github.com/BurntSushi/xgb/CONTRIBUTORS generated vendored
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@ -1,39 +0,0 @@
Andrew Gallant is the maintainer of this fork. What follows is the original
list of contributors for the x-go-binding.
# This is the official list of people who can contribute
# (and typically have contributed) code to the XGB repository.
# The AUTHORS file lists the copyright holders; this file
# lists people. For example, Google employees are listed here
# but not in AUTHORS, because Google holds the copyright.
#
# The submission process automatically checks to make sure
# that people submitting code are listed in this file (by email address).
#
# Names should be added to this file only after verifying that
# the individual or the individual's organization has agreed to
# the appropriate Contributor License Agreement, found here:
#
# http://code.google.com/legal/individual-cla-v1.0.html
# http://code.google.com/legal/corporate-cla-v1.0.html
#
# The agreement for individuals can be filled out on the web.
#
# When adding J Random Contributor's name to this file,
# either J's name or J's organization's name should be
# added to the AUTHORS file, depending on whether the
# individual or corporate CLA was used.
# Names should be added to this file like so:
# Name <email address>
# Please keep the list sorted.
Anthony Martin <ality@pbrane.org>
Firmansyah Adiputra <frm.adiputra@gmail.com>
Ian Lance Taylor <iant@golang.org>
Nigel Tao <nigeltao@golang.org>
Robert Griesemer <gri@golang.org>
Russ Cox <rsc@golang.org>
Scott Lawrence <bytbox@gmail.com>
Tor Andersson <tor.andersson@gmail.com>

42
vendor/github.com/BurntSushi/xgb/LICENSE generated vendored
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@ -1,42 +0,0 @@
// Copyright (c) 2009 The XGB Authors. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Subject to the terms and conditions of this License, Google hereby
// grants to You a perpetual, worldwide, non-exclusive, no-charge,
// royalty-free, irrevocable (except as stated in this section) patent
// license to make, have made, use, offer to sell, sell, import, and
// otherwise transfer this implementation of XGB, where such license
// applies only to those patent claims licensable by Google that are
// necessarily infringed by use of this implementation of XGB. If You
// institute patent litigation against any entity (including a
// cross-claim or counterclaim in a lawsuit) alleging that this
// implementation of XGB or a Contribution incorporated within this
// implementation of XGB constitutes direct or contributory patent
// infringement, then any patent licenses granted to You under this
// License for this implementation of XGB shall terminate as of the date
// such litigation is filed.

78
vendor/github.com/BurntSushi/xgb/Makefile generated vendored
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@ -1,78 +0,0 @@
# This Makefile is used by the developer. It is not needed in any way to build
# a checkout of the XGB repository.
# It will be useful, however, if you are hacking at the code generator.
# i.e., after making a change to the code generator, run 'make' in the
# xgb directory. This will build xgbgen and regenerate each sub-package.
# 'make test' will then run any appropriate tests (just tests xproto right now).
# 'make bench' will test a couple of benchmarks.
# 'make build-all' will then try to build each extension. This isn't strictly
# necessary, but it's a good idea to make sure each sub-package is a valid
# Go package.
# My path to the X protocol XML descriptions.
XPROTO=/usr/share/xcb
# All of the XML files in my /usr/share/xcb directory EXCEPT XKB. -_-
# This is intended to build xgbgen and generate Go code for each supported
# extension.
all: build-xgbgen \
bigreq.xml composite.xml damage.xml dpms.xml dri2.xml \
ge.xml glx.xml randr.xml record.xml render.xml res.xml \
screensaver.xml shape.xml shm.xml xc_misc.xml \
xevie.xml xf86dri.xml xf86vidmode.xml xfixes.xml xinerama.xml \
xprint.xml xproto.xml xselinux.xml xtest.xml \
xvmc.xml xv.xml
build-xgbgen:
(cd xgbgen && go build)
# Builds each individual sub-package to make sure its valid Go code.
build-all: bigreq.b composite.b damage.b dpms.b dri2.b ge.b glx.b randr.b \
record.b render.b res.b screensaver.b shape.b shm.b xcmisc.b \
xevie.b xf86dri.b xf86vidmode.b xfixes.b xinerama.b \
xprint.b xproto.b xselinux.b xtest.b xv.b xvmc.b
%.b:
(cd $* ; go build)
# Installs each individual sub-package.
install: bigreq.i composite.i damage.i dpms.i dri2.i ge.i glx.i randr.i \
record.i render.i res.i screensaver.i shape.i shm.i xcmisc.i \
xevie.i xf86dri.i xf86vidmode.i xfixes.i xinerama.i \
xprint.i xproto.i xselinux.i xtest.i xv.i xvmc.i
go install
%.i:
(cd $* ; go install)
# xc_misc is special because it has an underscore.
# There's probably a way to do this better, but Makefiles aren't my strong suit.
xc_misc.xml: build-xgbgen
mkdir -p xcmisc
xgbgen/xgbgen --proto-path $(XPROTO) $(XPROTO)/xc_misc.xml > xcmisc/xcmisc.go
%.xml: build-xgbgen
mkdir -p $*
xgbgen/xgbgen --proto-path $(XPROTO) $(XPROTO)/$*.xml > $*/$*.go
# Just test the xproto core protocol for now.
test:
(cd xproto ; go test)
# Force all xproto benchmarks to run and no tests.
bench:
(cd xproto ; go test -run 'nomatch' -bench '.*' -cpu 1,2,3,6)
# gofmt all non-auto-generated code.
# (auto-generated code is already gofmt'd.)
# Also do a column check (80 cols) after a gofmt.
# But don't check columns on auto-generated code, since I don't care if they
# break 80 cols.
gofmt:
gofmt -w *.go xgbgen/*.go examples/*.go examples/*/*.go xproto/xproto_test.go
colcheck *.go xgbgen/*.go examples/*.go examples/*/*.go xproto/xproto_test.go
push:
git push origin master
git push github master

54
vendor/github.com/BurntSushi/xgb/README generated vendored
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@ -1,54 +0,0 @@
XGB is the X Go Binding, which is a low-level API to communicate with the
core X protocol and many of the X extensions. It is closely modeled after
XCB and xpyb.
It is thread safe and gets immediate improvement from parallelism when
GOMAXPROCS > 1. (See the benchmarks in xproto/xproto_test.go for evidence.)
Please see doc.go for more info.
Note that unless you know you need XGB, you can probably make your life
easier by using a slightly higher level library: xgbutil.
Quick Usage
===========
go get github.com/BurntSushi/xgb
go run go/path/src/github.com/BurntSushi/xgb/examples/create-window/main.go
BurntSushi's Fork
=================
I've forked the XGB repository from Google Code due to inactivty upstream.
Godoc documentation can be found here:
https://godoc.org/github.com/BurntSushi/xgb
Much of the code has been rewritten in an effort to support thread safety
and multiple extensions. Namely, go_client.py has been thrown away in favor
of an xgbgen package.
The biggest parts that *haven't* been rewritten by me are the connection and
authentication handshakes. They're inherently messy, and there's really no
reason to re-work them. The rest of XGB has been completely rewritten.
I like to release my code under the WTFPL, but since I'm starting with someone
else's work, I'm leaving the original license/contributor/author information
in tact.
I suppose I can legitimately release xgbgen under the WTFPL. To be fair, it is
at least as complex as XGB itself. *sigh*
What follows is the original README:
XGB README
==========
XGB is the X protocol Go language Binding.
It is the Go equivalent of XCB, the X protocol C-language Binding
(http://xcb.freedesktop.org/).
Unless otherwise noted, the XGB source files are distributed
under the BSD-style license found in the LICENSE file.
Contributions should follow the same procedure as for the Go project:
http://golang.org/doc/contribute.html

29
vendor/github.com/BurntSushi/xgb/STYLE generated vendored
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@ -1,29 +0,0 @@
I like to keep all my code to 80 columns or less. I have plenty of screen real
estate, but enjoy 80 columns so that I can have multiple code windows open side
to side and not be plagued by the ugly auto-wrapping of a text editor.
If you don't oblige me, I will fix any patch you submit to abide 80 columns.
Note that this style restriction does not preclude gofmt, but introduces a few
peculiarities. The first is that gofmt will occasionally add spacing (typically
to comments) that ends up going over 80 columns. Either shorten the comment or
put it on its own line.
The second and more common hiccup is when a function definition extends beyond
80 columns. If one adds line breaks to keep it below 80 columns, gofmt will
indent all subsequent lines in a function definition to the same indentation
level of the function body. This results in a less-than-ideal separation
between function definition and function body. To remedy this, simply add a
line break like so:
func RestackWindowExtra(xu *xgbutil.XUtil, win xproto.Window, stackMode int,
sibling xproto.Window, source int) error {
return ClientEvent(xu, win, "_NET_RESTACK_WINDOW", source, int(sibling),
stackMode)
}
Something similar should also be applied to long 'if' or 'for' conditionals,
although it would probably be preferrable to break up the conditional to
smaller chunks with a few helper variables.

110
vendor/github.com/BurntSushi/xgb/auth.go generated vendored
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@ -1,110 +0,0 @@
package xgb
/*
auth.go contains functions to facilitate the parsing of .Xauthority files.
It is largely unmodified from the original XGB package that I forked.
*/
import (
"encoding/binary"
"errors"
"io"
"os"
)
// readAuthority reads the X authority file for the DISPLAY.
// If hostname == "" or hostname == "localhost",
// then use the system's hostname (as returned by os.Hostname) instead.
func readAuthority(hostname, display string) (
name string, data []byte, err error) {
// b is a scratch buffer to use and should be at least 256 bytes long
// (i.e. it should be able to hold a hostname).
b := make([]byte, 256)
// As per /usr/include/X11/Xauth.h.
const familyLocal = 256
const familyWild = 65535
if len(hostname) == 0 || hostname == "localhost" {
hostname, err = os.Hostname()
if err != nil {
return "", nil, err
}
}
fname := os.Getenv("XAUTHORITY")
if len(fname) == 0 {
home := os.Getenv("HOME")
if len(home) == 0 {
err = errors.New("Xauthority not found: $XAUTHORITY, $HOME not set")
return "", nil, err
}
fname = home + "/.Xauthority"
}
r, err := os.Open(fname)
if err != nil {
return "", nil, err
}
defer r.Close()
for {
var family uint16
if err := binary.Read(r, binary.BigEndian, &family); err != nil {
return "", nil, err
}
addr, err := getString(r, b)
if err != nil {
return "", nil, err
}
disp, err := getString(r, b)
if err != nil {
return "", nil, err
}
name0, err := getString(r, b)
if err != nil {
return "", nil, err
}
data0, err := getBytes(r, b)
if err != nil {
return "", nil, err
}
addrmatch := (family == familyWild) ||
(family == familyLocal && addr == hostname)
dispmatch := (disp == "") || (disp == display)
if addrmatch && dispmatch {
return name0, data0, nil
}
}
panic("unreachable")
}
func getBytes(r io.Reader, b []byte) ([]byte, error) {
var n uint16
if err := binary.Read(r, binary.BigEndian, &n); err != nil {
return nil, err
} else if n > uint16(len(b)) {
return nil, errors.New("bytes too long for buffer")
}
if _, err := io.ReadFull(r, b[0:n]); err != nil {
return nil, err
}
return b[0:n], nil
}
func getString(r io.Reader, b []byte) (string, error) {
b, err := getBytes(r, b)
if err != nil {
return "", err
}
return string(b), nil
}

185
vendor/github.com/BurntSushi/xgb/conn.go generated vendored
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@ -1,185 +0,0 @@
package xgb
/*
conn.go contains a couple of functions that do some real dirty work related
to the initial connection handshake with X.
This code is largely unmodified from the original XGB package that I forked.
*/
import (
"errors"
"fmt"
"io"
"net"
"os"
"strconv"
"strings"
)
// connect connects to the X server given in the 'display' string,
// and does all the necessary setup handshaking.
// If 'display' is empty it will be taken from os.Getenv("DISPLAY").
// Note that you should read and understand the "Connection Setup" of the
// X Protocol Reference Manual before changing this function:
// http://goo.gl/4zGQg
func (c *Conn) connect(display string) error {
err := c.dial(display)
if err != nil {
return err
}
return c.postConnect()
}
// connect init from to the net.Conn,
func (c *Conn) connectNet(netConn net.Conn) error {
c.conn = netConn
return c.postConnect()
}
// do the postConnect action after Conn get it's underly net.Conn
func (c *Conn) postConnect() error {
// Get authentication data
authName, authData, err := readAuthority(c.host, c.display)
noauth := false
if err != nil {
Logger.Printf("Could not get authority info: %v", err)
Logger.Println("Trying connection without authority info...")
authName = ""
authData = []byte{}
noauth = true
}
// Assume that the authentication protocol is "MIT-MAGIC-COOKIE-1".
if !noauth && (authName != "MIT-MAGIC-COOKIE-1" || len(authData) != 16) {
return errors.New("unsupported auth protocol " + authName)
}
buf := make([]byte, 12+Pad(len(authName))+Pad(len(authData)))
buf[0] = 0x6c
buf[1] = 0
Put16(buf[2:], 11)
Put16(buf[4:], 0)
Put16(buf[6:], uint16(len(authName)))
Put16(buf[8:], uint16(len(authData)))
Put16(buf[10:], 0)
copy(buf[12:], []byte(authName))
copy(buf[12+Pad(len(authName)):], authData)
if _, err = c.conn.Write(buf); err != nil {
return err
}
head := make([]byte, 8)
if _, err = io.ReadFull(c.conn, head[0:8]); err != nil {
return err
}
code := head[0]
reasonLen := head[1]
major := Get16(head[2:])
minor := Get16(head[4:])
dataLen := Get16(head[6:])
if major != 11 || minor != 0 {
return fmt.Errorf("x protocol version mismatch: %d.%d", major, minor)
}
buf = make([]byte, int(dataLen)*4+8, int(dataLen)*4+8)
copy(buf, head)
if _, err = io.ReadFull(c.conn, buf[8:]); err != nil {
return err
}
if code == 0 {
reason := buf[8 : 8+reasonLen]
return fmt.Errorf("x protocol authentication refused: %s",
string(reason))
}
// Unfortunately, it isn't really feasible to read the setup bytes here,
// since the code to do so is in a different package.
// Users must call 'xproto.Setup(X)' to get the setup info.
c.SetupBytes = buf
// But also read stuff that we *need* to get started.
c.setupResourceIdBase = Get32(buf[12:])
c.setupResourceIdMask = Get32(buf[16:])
return nil
}
// dial initializes the actual net connection with X.
func (c *Conn) dial(display string) error {
if len(display) == 0 {
display = os.Getenv("DISPLAY")
}
display0 := display
if len(display) == 0 {
return errors.New("empty display string")
}
colonIdx := strings.LastIndex(display, ":")
if colonIdx < 0 {
return errors.New("bad display string: " + display0)
}
var protocol, socket string
if display[0] == '/' {
socket = display[0:colonIdx]
} else {
slashIdx := strings.LastIndex(display, "/")
if slashIdx >= 0 {
protocol = display[0:slashIdx]
c.host = display[slashIdx+1 : colonIdx]
} else {
c.host = display[0:colonIdx]
}
}
display = display[colonIdx+1 : len(display)]
if len(display) == 0 {
return errors.New("bad display string: " + display0)
}
var scr string
dotIdx := strings.LastIndex(display, ".")
if dotIdx < 0 {
c.display = display[0:]
} else {
c.display = display[0:dotIdx]
scr = display[dotIdx+1:]
}
var err error
c.DisplayNumber, err = strconv.Atoi(c.display)
if err != nil || c.DisplayNumber < 0 {
return errors.New("bad display string: " + display0)
}
if len(scr) != 0 {
c.DefaultScreen, err = strconv.Atoi(scr)
if err != nil {
return errors.New("bad display string: " + display0)
}
}
// Connect to server
if len(socket) != 0 {
c.conn, err = net.Dial("unix", socket+":"+c.display)
} else if len(c.host) != 0 {
if protocol == "" {
protocol = "tcp"
}
c.conn, err = net.Dial(protocol,
c.host+":"+strconv.Itoa(6000+c.DisplayNumber))
} else {
c.conn, err = net.Dial("unix", "/tmp/.X11-unix/X"+c.display)
}
if err != nil {
return errors.New("cannot connect to " + display0 + ": " + err.Error())
}
return nil
}

165
vendor/github.com/BurntSushi/xgb/cookie.go generated vendored
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@ -1,165 +0,0 @@
package xgb
import (
"errors"
)
// Cookie is the internal representation of a cookie, where one is generated
// for *every* request sent by XGB.
// 'cookie' is most frequently used by embedding it into a more specific
// kind of cookie, i.e., 'GetInputFocusCookie'.
type Cookie struct {
conn *Conn
Sequence uint16
replyChan chan []byte
errorChan chan error
pingChan chan bool
}
// NewCookie creates a new cookie with the correct channels initialized
// depending upon the values of 'checked' and 'reply'. Together, there are
// four different kinds of cookies. (See more detailed comments in the
// function for more info on those.)
// Note that a sequence number is not set until just before the request
// corresponding to this cookie is sent over the wire.
//
// Unless you're building requests from bytes by hand, this method should
// not be used.
func (c *Conn) NewCookie(checked, reply bool) *Cookie {
cookie := &Cookie{
conn: c,
Sequence: 0, // we add the sequence id just before sending a request
replyChan: nil,
errorChan: nil,
pingChan: nil,
}
// There are four different kinds of cookies:
// Checked requests with replies get a reply channel and an error channel.
// Unchecked requests with replies get a reply channel and a ping channel.
// Checked requests w/o replies get a ping channel and an error channel.
// Unchecked requests w/o replies get no channels.
// The reply channel is used to send reply data.
// The error channel is used to send error data.
// The ping channel is used when one of the 'reply' or 'error' channels
// is missing but the other is present. The ping channel is way to force
// the blocking to stop and basically say "the error has been received
// in the main event loop" (when the ping channel is coupled with a reply
// channel) or "the request you made that has no reply was successful"
// (when the ping channel is coupled with an error channel).
if checked {
cookie.errorChan = make(chan error, 1)
if !reply {
cookie.pingChan = make(chan bool, 1)
}
}
if reply {
cookie.replyChan = make(chan []byte, 1)
if !checked {
cookie.pingChan = make(chan bool, 1)
}
}
return cookie
}
// Reply detects whether this is a checked or unchecked cookie, and calls
// 'replyChecked' or 'replyUnchecked' appropriately.
//
// Unless you're building requests from bytes by hand, this method should
// not be used.
func (c Cookie) Reply() ([]byte, error) {
// checked
if c.errorChan != nil {
return c.replyChecked()
}
return c.replyUnchecked()
}
// replyChecked waits for a response on either the replyChan or errorChan
// channels. If the former arrives, the bytes are returned with a nil error.
// If the latter arrives, no bytes are returned (nil) and the error received
// is returned.
//
// Unless you're building requests from bytes by hand, this method should
// not be used.
func (c Cookie) replyChecked() ([]byte, error) {
if c.replyChan == nil {
return nil, errors.New("Cannot call 'replyChecked' on a cookie that " +
"is not expecting a *reply* or an error.")
}
if c.errorChan == nil {
return nil, errors.New("Cannot call 'replyChecked' on a cookie that " +
"is not expecting a reply or an *error*.")
}
select {
case reply := <-c.replyChan:
return reply, nil
case err := <-c.errorChan:
return nil, err
}
}
// replyUnchecked waits for a response on either the replyChan or pingChan
// channels. If the former arrives, the bytes are returned with a nil error.
// If the latter arrives, no bytes are returned (nil) and a nil error
// is returned. (In the latter case, the corresponding error can be retrieved
// from (Wait|Poll)ForEvent asynchronously.)
// In all honesty, you *probably* don't want to use this method.
//
// Unless you're building requests from bytes by hand, this method should
// not be used.
func (c Cookie) replyUnchecked() ([]byte, error) {
if c.replyChan == nil {
return nil, errors.New("Cannot call 'replyUnchecked' on a cookie " +
"that is not expecting a *reply*.")
}
select {
case reply := <-c.replyChan:
return reply, nil
case <-c.pingChan:
return nil, nil
}
}
// Check is used for checked requests that have no replies. It is a mechanism
// by which to report "success" or "error" in a synchronous fashion. (Therefore,
// unchecked requests without replies cannot use this method.)
// If the request causes an error, it is sent to this cookie's errorChan.
// If the request was successful, there is no response from the server.
// Thus, pingChan is sent a value when the *next* reply is read.
// If no more replies are being processed, we force a round trip request with
// GetInputFocus.
//
// Unless you're building requests from bytes by hand, this method should
// not be used.
func (c Cookie) Check() error {
if c.replyChan != nil {
return errors.New("Cannot call 'Check' on a cookie that is " +
"expecting a *reply*. Use 'Reply' instead.")
}
if c.errorChan == nil {
return errors.New("Cannot call 'Check' on a cookie that is " +
"not expecting a possible *error*.")
}
// First do a quick non-blocking check to see if we've been pinged.
select {
case err := <-c.errorChan:
return err
case <-c.pingChan:
return nil
default:
}
// Now force a round trip and try again, but block this time.
c.conn.Sync()
select {
case err := <-c.errorChan:
return err
case <-c.pingChan:
return nil
}
}

146
vendor/github.com/BurntSushi/xgb/doc.go generated vendored
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@ -1,146 +0,0 @@
/*
Package XGB provides the X Go Binding, which is a low-level API to communicate
with the core X protocol and many of the X extensions.
It is *very* closely modeled on XCB, so that experience with XCB (or xpyb) is
easily translatable to XGB. That is, it uses the same cookie/reply model
and is thread safe. There are otherwise no major differences (in the API).
Most uses of XGB typically fall under the realm of window manager and GUI kit
development, but other applications (like pagers, panels, tilers, etc.) may
also require XGB. Moreover, it is a near certainty that if you need to work
with X, xgbutil will be of great use to you as well:
https://github.com/BurntSushi/xgbutil
Example
This is an extremely terse example that demonstrates how to connect to X,
create a window, listen to StructureNotify events and Key{Press,Release}
events, map the window, and print out all events received. An example with
accompanying documentation can be found in examples/create-window.
package main
import (
"fmt"
"github.com/BurntSushi/xgb"
"github.com/BurntSushi/xgb/xproto"
)
func main() {
X, err := xgb.NewConn()
if err != nil {
fmt.Println(err)
return
}
wid, _ := xproto.NewWindowId(X)
screen := xproto.Setup(X).DefaultScreen(X)
xproto.CreateWindow(X, screen.RootDepth, wid, screen.Root,
0, 0, 500, 500, 0,
xproto.WindowClassInputOutput, screen.RootVisual,
xproto.CwBackPixel | xproto.CwEventMask,
[]uint32{ // values must be in the order defined by the protocol
0xffffffff,
xproto.EventMaskStructureNotify |
xproto.EventMaskKeyPress |
xproto.EventMaskKeyRelease})
xproto.MapWindow(X, wid)
for {
ev, xerr := X.WaitForEvent()
if ev == nil && xerr == nil {
fmt.Println("Both event and error are nil. Exiting...")
return
}
if ev != nil {
fmt.Printf("Event: %s\n", ev)
}
if xerr != nil {
fmt.Printf("Error: %s\n", xerr)
}
}
}
Xinerama Example
This is another small example that shows how to query Xinerama for geometry
information of each active head. Accompanying documentation for this example
can be found in examples/xinerama.
package main
import (
"fmt"
"log"
"github.com/BurntSushi/xgb"
"github.com/BurntSushi/xgb/xinerama"
)
func main() {
X, err := xgb.NewConn()
if err != nil {
log.Fatal(err)
}
// Initialize the Xinerama extension.
// The appropriate 'Init' function must be run for *every*
// extension before any of its requests can be used.
err = xinerama.Init(X)
if err != nil {
log.Fatal(err)
}
reply, err := xinerama.QueryScreens(X).Reply()
if err != nil {
log.Fatal(err)
}
fmt.Printf("Number of heads: %d\n", reply.Number)
for i, screen := range reply.ScreenInfo {
fmt.Printf("%d :: X: %d, Y: %d, Width: %d, Height: %d\n",
i, screen.XOrg, screen.YOrg, screen.Width, screen.Height)
}
}
Parallelism
XGB can benefit greatly from parallelism due to its concurrent design. For
evidence of this claim, please see the benchmarks in xproto/xproto_test.go.
Tests
xproto/xproto_test.go contains a number of contrived tests that stress
particular corners of XGB that I presume could be problem areas. Namely:
requests with no replies, requests with replies, checked errors, unchecked
errors, sequence number wrapping, cookie buffer flushing (i.e., forcing a round
trip every N requests made that don't have a reply), getting/setting properties
and creating a window and listening to StructureNotify events.
Code Generator
Both XCB and xpyb use the same Python module (xcbgen) for a code generator. XGB
(before this fork) used the same code generator as well, but in my attempt to
add support for more extensions, I found the code generator extremely difficult
to work with. Therefore, I re-wrote the code generator in Go. It can be found
in its own sub-package, xgbgen, of xgb. My design of xgbgen includes a rough
consideration that it could be used for other languages.
What works
I am reasonably confident that the core X protocol is in full working form. I've
also tested the Xinerama and RandR extensions sparingly. Many of the other
existing extensions have Go source generated (and are compilable) and are
included in this package, but I am currently unsure of their status. They
*should* work.
What does not work
XKB is the only extension that intentionally does not work, although I suspect
that GLX also does not work (however, there is Go source code for GLX that
compiles, unlike XKB). I don't currently have any intention of getting XKB
working, due to its complexity and my current mental incapacity to test it.
*/
package xgb

105
vendor/github.com/BurntSushi/xgb/help.go generated vendored
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@ -1,105 +0,0 @@
package xgb
/*
help.go is meant to contain a rough hodge podge of functions that are mainly
used in the auto generated code. Indeed, several functions here are simple
wrappers so that the sub-packages don't need to be smart about which stdlib
packages to import.
Also, the 'Get..' and 'Put..' functions are used through the core xgb package
too. (xgbutil uses them too.)
*/
import (
"fmt"
"strings"
)
// StringsJoin is an alias to strings.Join. It allows us to avoid having to
// import 'strings' in each of the generated Go files.
func StringsJoin(ss []string, sep string) string {
return strings.Join(ss, sep)
}
// Sprintf is so we don't need to import 'fmt' in the generated Go files.
func Sprintf(format string, v ...interface{}) string {
return fmt.Sprintf(format, v...)
}
// Errorf is just a wrapper for fmt.Errorf. Exists for the same reason
// that 'stringsJoin' and 'sprintf' exists.
func Errorf(format string, v ...interface{}) error {
return fmt.Errorf(format, v...)
}
// Pad a length to align on 4 bytes.
func Pad(n int) int {
return (n + 3) & ^3
}
// PopCount counts the number of bits set in a value list mask.
func PopCount(mask0 int) int {
mask := uint32(mask0)
n := 0
for i := uint32(0); i < 32; i++ {
if mask&(1<<i) != 0 {
n++
}
}
return n
}
// Put16 takes a 16 bit integer and copies it into a byte slice.
func Put16(buf []byte, v uint16) {
buf[0] = byte(v)
buf[1] = byte(v >> 8)
}
// Put32 takes a 32 bit integer and copies it into a byte slice.
func Put32(buf []byte, v uint32) {
buf[0] = byte(v)
buf[1] = byte(v >> 8)
buf[2] = byte(v >> 16)
buf[3] = byte(v >> 24)
}
// Put64 takes a 64 bit integer and copies it into a byte slice.
func Put64(buf []byte, v uint64) {
buf[0] = byte(v)
buf[1] = byte(v >> 8)
buf[2] = byte(v >> 16)
buf[3] = byte(v >> 24)
buf[4] = byte(v >> 32)
buf[5] = byte(v >> 40)
buf[6] = byte(v >> 48)
buf[7] = byte(v >> 56)
}
// Get16 constructs a 16 bit integer from the beginning of a byte slice.
func Get16(buf []byte) uint16 {
v := uint16(buf[0])
v |= uint16(buf[1]) << 8
return v
}
// Get32 constructs a 32 bit integer from the beginning of a byte slice.
func Get32(buf []byte) uint32 {
v := uint32(buf[0])
v |= uint32(buf[1]) << 8
v |= uint32(buf[2]) << 16
v |= uint32(buf[3]) << 24
return v
}
// Get64 constructs a 64 bit integer from the beginning of a byte slice.
func Get64(buf []byte) uint64 {
v := uint64(buf[0])
v |= uint64(buf[1]) << 8
v |= uint64(buf[2]) << 16
v |= uint64(buf[3]) << 24
v |= uint64(buf[4]) << 32
v |= uint64(buf[5]) << 40
v |= uint64(buf[6]) << 48
v |= uint64(buf[7]) << 56
return v
}

29
vendor/github.com/BurntSushi/xgb/sync.go generated vendored
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@ -1,29 +0,0 @@
package xgb
// Sync sends a round trip request and waits for the response.
// This forces all pending cookies to be dealt with.
// You actually shouldn't need to use this like you might with Xlib. Namely,
// buffers are automatically flushed using Go's channels and round trip requests
// are forced where appropriate automatically.
func (c *Conn) Sync() {
cookie := c.NewCookie(true, true)
c.NewRequest(c.getInputFocusRequest(), cookie)
cookie.Reply() // wait for the buffer to clear
}
// getInputFocusRequest writes the raw bytes to a buffer.
// It is duplicated from xproto/xproto.go.
func (c *Conn) getInputFocusRequest() []byte {
size := 4
b := 0
buf := make([]byte, size)
buf[b] = 43 // request opcode
b += 1
b += 1 // padding
Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
b += 2
return buf
}

554
vendor/github.com/BurntSushi/xgb/xgb.go generated vendored
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@ -1,554 +0,0 @@
package xgb
import (
"errors"
"io"
"log"
"net"
"os"
"sync"
)
var (
// Where to log error-messages. Defaults to stderr.
// To disable logging, just set this to log.New(ioutil.Discard, "", 0)
Logger = log.New(os.Stderr, "XGB: ", log.Lshortfile)
)
const (
// cookieBuffer represents the queue size of cookies existing at any
// point in time. The size of the buffer is really only important when
// there are many requests without replies made in sequence. Once the
// buffer fills, a round trip request is made to clear the buffer.
cookieBuffer = 1000
// xidBuffer represents the queue size of the xid channel.
// I don't think this value matters much, since xid generation is not
// that expensive.
xidBuffer = 5
// seqBuffer represents the queue size of the sequence number channel.
// I don't think this value matters much, since sequence number generation
// is not that expensive.
seqBuffer = 5
// reqBuffer represents the queue size of the number of requests that
// can be made until new ones block. This value seems OK.
reqBuffer = 100
// eventBuffer represents the queue size of the number of events or errors
// that can be loaded off the wire and not grabbed with WaitForEvent
// until reading an event blocks. This value should be big enough to handle
// bursts of events.
eventBuffer = 5000
)
// A Conn represents a connection to an X server.
type Conn struct {
host string
conn net.Conn
display string
DisplayNumber int
DefaultScreen int
SetupBytes []byte
setupResourceIdBase uint32
setupResourceIdMask uint32
eventChan chan eventOrError
cookieChan chan *Cookie
xidChan chan xid
seqChan chan uint16
reqChan chan *request
closing chan chan struct{}
// ExtLock is a lock used whenever new extensions are initialized.
// It should not be used. It is exported for use in the extension
// sub-packages.
ExtLock sync.RWMutex
// Extensions is a map from extension name to major opcode. It should
// not be used. It is exported for use in the extension sub-packages.
Extensions map[string]byte
}
// NewConn creates a new connection instance. It initializes locks, data
// structures, and performs the initial handshake. (The code for the handshake
// has been relegated to conn.go.)
func NewConn() (*Conn, error) {
return NewConnDisplay("")
}
// NewConnDisplay is just like NewConn, but allows a specific DISPLAY
// string to be used.
// If 'display' is empty it will be taken from os.Getenv("DISPLAY").
//
// Examples:
// NewConn(":1") -> net.Dial("unix", "", "/tmp/.X11-unix/X1")
// NewConn("/tmp/launch-12/:0") -> net.Dial("unix", "", "/tmp/launch-12/:0")
// NewConn("hostname:2.1") -> net.Dial("tcp", "", "hostname:6002")
// NewConn("tcp/hostname:1.0") -> net.Dial("tcp", "", "hostname:6001")
func NewConnDisplay(display string) (*Conn, error) {
conn := &Conn{}
// First connect. This reads authority, checks DISPLAY environment
// variable, and loads the initial Setup info.
err := conn.connect(display)
if err != nil {
return nil, err
}
return postNewConn(conn)
}
// NewConnDisplay is just like NewConn, but allows a specific net.Conn
// to be used.
func NewConnNet(netConn net.Conn) (*Conn, error) {
conn := &Conn{}
// First connect. This reads authority, checks DISPLAY environment
// variable, and loads the initial Setup info.
err := conn.connectNet(netConn)
if err != nil {
return nil, err
}
return postNewConn(conn)
}
func postNewConn(conn *Conn) (*Conn, error) {
conn.Extensions = make(map[string]byte)
conn.cookieChan = make(chan *Cookie, cookieBuffer)
conn.xidChan = make(chan xid, xidBuffer)
conn.seqChan = make(chan uint16, seqBuffer)
conn.reqChan = make(chan *request, reqBuffer)
conn.eventChan = make(chan eventOrError, eventBuffer)
conn.closing = make(chan chan struct{}, 1)
go conn.generateXIds()
go conn.generateSeqIds()
go conn.sendRequests()
go conn.readResponses()
return conn, nil
}
// Close gracefully closes the connection to the X server.
func (c *Conn) Close() {
close(c.reqChan)
}
// Event is an interface that can contain any of the events returned by the
// server. Use a type assertion switch to extract the Event structs.
type Event interface {
Bytes() []byte
String() string
}
// NewEventFun is the type of function use to construct events from raw bytes.
// It should not be used. It is exported for use in the extension sub-packages.
type NewEventFun func(buf []byte) Event
// NewEventFuncs is a map from event numbers to functions that create
// the corresponding event. It should not be used. It is exported for use
// in the extension sub-packages.
var NewEventFuncs = make(map[int]NewEventFun)
// NewExtEventFuncs is a temporary map that stores event constructor functions
// for each extension. When an extension is initialized, each event for that
// extension is added to the 'NewEventFuncs' map. It should not be used. It is
// exported for use in the extension sub-packages.
var NewExtEventFuncs = make(map[string]map[int]NewEventFun)
// Error is an interface that can contain any of the errors returned by
// the server. Use a type assertion switch to extract the Error structs.
type Error interface {
SequenceId() uint16
BadId() uint32
Error() string
}
// NewErrorFun is the type of function use to construct errors from raw bytes.
// It should not be used. It is exported for use in the extension sub-packages.
type NewErrorFun func(buf []byte) Error
// NewErrorFuncs is a map from error numbers to functions that create
// the corresponding error. It should not be used. It is exported for use in
// the extension sub-packages.
var NewErrorFuncs = make(map[int]NewErrorFun)
// NewExtErrorFuncs is a temporary map that stores error constructor functions
// for each extension. When an extension is initialized, each error for that
// extension is added to the 'NewErrorFuncs' map. It should not be used. It is
// exported for use in the extension sub-packages.
var NewExtErrorFuncs = make(map[string]map[int]NewErrorFun)
// eventOrError corresponds to values that can be either an event or an
// error.
type eventOrError interface{}
// NewId generates a new unused ID for use with requests like CreateWindow.
// If no new ids can be generated, the id returned is 0 and error is non-nil.
// This shouldn't be used directly, and is exported for use in the extension
// sub-packages.
// If you need identifiers, use the appropriate constructor.
// e.g., For a window id, use xproto.NewWindowId. For
// a new pixmap id, use xproto.NewPixmapId. And so on.
func (c *Conn) NewId() (uint32, error) {
xid := <-c.xidChan
if xid.err != nil {
return 0, xid.err
}
return xid.id, nil
}
// xid encapsulates a resource identifier being sent over the Conn.xidChan
// channel. If no new resource id can be generated, id is set to 0 and a
// non-nil error is set in xid.err.
type xid struct {
id uint32
err error
}
// generateXids sends new Ids down the channel for NewId to use.
// generateXids should be run in its own goroutine.
// This needs to be updated to use the XC Misc extension once we run out of
// new ids.
// Thanks to libxcb/src/xcb_xid.c. This code is greatly inspired by it.
func (conn *Conn) generateXIds() {
defer close(conn.xidChan)
// This requires some explanation. From the horse's mouth:
// "The resource-id-mask contains a single contiguous set of bits (at least
// 18). The client allocates resource IDs for types WINDOW, PIXMAP,
// CURSOR, FONT, GCONTEXT, and COLORMAP by choosing a value with only some
// subset of these bits set and ORing it with resource-id-base. Only values
// constructed in this way can be used to name newly created resources over
// this connection."
// So for example (using 8 bit integers), the mask might look like:
// 00111000
// So that valid values would be 00101000, 00110000, 00001000, and so on.
// Thus, the idea is to increment it by the place of the last least
// significant '1'. In this case, that value would be 00001000. To get
// that value, we can AND the original mask with its two's complement:
// 00111000 & 11001000 = 00001000.
// And we use that value to increment the last resource id to get a new one.
// (And then, of course, we OR it with resource-id-base.)
inc := conn.setupResourceIdMask & -conn.setupResourceIdMask
max := conn.setupResourceIdMask
last := uint32(0)
for {
// TODO: Use the XC Misc extension to look for released ids.
if last > 0 && last >= max-inc+1 {
conn.xidChan <- xid{
id: 0,
err: errors.New("There are no more available resource" +
"identifiers."),
}
}
last += inc
conn.xidChan <- xid{
id: last | conn.setupResourceIdBase,
err: nil,
}
}
}
// newSeqId fetches the next sequence id from the Conn.seqChan channel.
func (c *Conn) newSequenceId() uint16 {
return <-c.seqChan
}
// generateSeqIds returns new sequence ids. It is meant to be run in its
// own goroutine.
// A sequence id is generated for *every* request. It's the identifier used
// to match up replies with requests.
// Since sequence ids can only be 16 bit integers we start over at zero when it
// comes time to wrap.
// N.B. As long as the cookie buffer is less than 2^16, there are no limitations
// on the number (or kind) of requests made in sequence.
func (c *Conn) generateSeqIds() {
defer close(c.seqChan)
seqid := uint16(1)
for {
c.seqChan <- seqid
if seqid == uint16((1<<16)-1) {
seqid = 0
} else {
seqid++
}
}
}
// request encapsulates a buffer of raw bytes (containing the request data)
// and a cookie, which when combined represents a single request.
// The cookie is used to match up the reply/error.
type request struct {
buf []byte
cookie *Cookie
// seq is closed when the request (cookie) has been sequenced by the Conn.
seq chan struct{}
}
// NewRequest takes the bytes and a cookie of a particular request, constructs
// a request type, and sends it over the Conn.reqChan channel.
// Note that the sequence number is added to the cookie after it is sent
// over the request channel, but before it is sent to X.
//
// Note that you may safely use NewRequest to send arbitrary byte requests
// to X. The resulting cookie can be used just like any normal cookie and
// abides by the same rules, except that for replies, you'll get back the
// raw byte data. This may be useful for performance critical sections where
// every allocation counts, since all X requests in XGB allocate a new byte
// slice. In contrast, NewRequest allocates one small request struct and
// nothing else. (Except when the cookie buffer is full and has to be flushed.)
//
// If you're using NewRequest manually, you'll need to use NewCookie to create
// a new cookie.
//
// In all likelihood, you should be able to copy and paste with some minor
// edits the generated code for the request you want to issue.
func (c *Conn) NewRequest(buf []byte, cookie *Cookie) {
seq := make(chan struct{})
c.reqChan <- &request{buf: buf, cookie: cookie, seq: seq}
<-seq
}
// sendRequests is run as a single goroutine that takes requests and writes
// the bytes to the wire and adds the cookie to the cookie queue.
// It is meant to be run as its own goroutine.
func (c *Conn) sendRequests() {
defer close(c.cookieChan)
for req := range c.reqChan {
// ho there! if the cookie channel is nearly full, force a round
// trip to clear out the cookie buffer.
// Note that we circumvent the request channel, because we're *in*
// the request channel.
if len(c.cookieChan) == cookieBuffer-1 {
if err := c.noop(); err != nil {
// Shut everything down.
break
}
}
req.cookie.Sequence = c.newSequenceId()
c.cookieChan <- req.cookie
c.writeBuffer(req.buf)
close(req.seq)
}
response := make(chan struct{})
c.closing <- response
c.noop() // Flush the response reading goroutine, ignore error.
<-response
c.conn.Close()
}
// noop circumvents the usual request sending goroutines and forces a round
// trip request manually.
func (c *Conn) noop() error {
cookie := c.NewCookie(true, true)
cookie.Sequence = c.newSequenceId()
c.cookieChan <- cookie
if err := c.writeBuffer(c.getInputFocusRequest()); err != nil {
return err
}
cookie.Reply() // wait for the buffer to clear
return nil
}
// writeBuffer is a convenience function for writing a byte slice to the wire.
func (c *Conn) writeBuffer(buf []byte) error {
if _, err := c.conn.Write(buf); err != nil {
Logger.Printf("A write error is unrecoverable: %s", err)
return err
} else {
return nil
}
}
// readResponses is a goroutine that reads events, errors and
// replies off the wire.
// When an event is read, it is always added to the event channel.
// When an error is read, if it corresponds to an existing checked cookie,
// it is sent to that cookie's error channel. Otherwise it is added to the
// event channel.
// When a reply is read, it is added to the corresponding cookie's reply
// channel. (It is an error if no such cookie exists in this case.)
// Finally, cookies that came "before" this reply are always cleaned up.
func (c *Conn) readResponses() {
defer close(c.eventChan)
var (
err Error
seq uint16
replyBytes []byte
)
for {
select {
case respond := <-c.closing:
respond <- struct{}{}
return
default:
}
buf := make([]byte, 32)
err, seq = nil, 0
if _, err := io.ReadFull(c.conn, buf); err != nil {
Logger.Printf("A read error is unrecoverable: %s", err)
c.eventChan <- err
c.Close()
continue
}
switch buf[0] {
case 0: // This is an error
// Use the constructor function for this error (that is auto
// generated) by looking it up by the error number.
newErrFun, ok := NewErrorFuncs[int(buf[1])]
if !ok {
Logger.Printf("BUG: Could not find error constructor function "+
"for error with number %d.", buf[1])
continue
}
err = newErrFun(buf)
seq = err.SequenceId()
// This error is either sent to the event channel or a specific
// cookie's error channel below.
case 1: // This is a reply
seq = Get16(buf[2:])
// check to see if this reply has more bytes to be read
size := Get32(buf[4:])
if size > 0 {
byteCount := 32 + size*4
biggerBuf := make([]byte, byteCount)
copy(biggerBuf[:32], buf)
if _, err := io.ReadFull(c.conn, biggerBuf[32:]); err != nil {
Logger.Printf("A read error is unrecoverable: %s", err)
c.eventChan <- err
c.Close()
continue
}
replyBytes = biggerBuf
} else {
replyBytes = buf
}
// This reply is sent to its corresponding cookie below.
default: // This is an event
// Use the constructor function for this event (like for errors,
// and is also auto generated) by looking it up by the event number.
// Note that we AND the event number with 127 so that we ignore
// the most significant bit (which is set when it was sent from
// a SendEvent request).
evNum := int(buf[0] & 127)
newEventFun, ok := NewEventFuncs[evNum]
if !ok {
Logger.Printf("BUG: Could not find event construct function "+
"for event with number %d.", evNum)
continue
}
c.eventChan <- newEventFun(buf)
continue
}
// At this point, we have a sequence number and we're either
// processing an error or a reply, which are both responses to
// requests. So all we have to do is find the cookie corresponding
// to this error/reply, and send the appropriate data to it.
// In doing so, we make sure that any cookies that came before it
// are marked as successful if they are void and checked.
// If there's a cookie that requires a reply that is before this
// reply, then something is wrong.
for cookie := range c.cookieChan {
// This is the cookie we're looking for. Process and break.
if cookie.Sequence == seq {
if err != nil { // this is an error to a request
// synchronous processing
if cookie.errorChan != nil {
cookie.errorChan <- err
} else { // asynchronous processing
c.eventChan <- err
// if this is an unchecked reply, ping the cookie too
if cookie.pingChan != nil {
cookie.pingChan <- true
}
}
} else { // this is a reply
if cookie.replyChan == nil {
Logger.Printf("Reply with sequence id %d does not "+
"have a cookie with a valid reply channel.", seq)
continue
} else {
cookie.replyChan <- replyBytes
}
}
break
}
switch {
// Checked requests with replies
case cookie.replyChan != nil && cookie.errorChan != nil:
Logger.Printf("Found cookie with sequence id %d that is "+
"expecting a reply but will never get it. Currently "+
"on sequence number %d", cookie.Sequence, seq)
// Unchecked requests with replies
case cookie.replyChan != nil && cookie.pingChan != nil:
Logger.Printf("Found cookie with sequence id %d that is "+
"expecting a reply (and not an error) but will never "+
"get it. Currently on sequence number %d",
cookie.Sequence, seq)
// Checked requests without replies
case cookie.pingChan != nil && cookie.errorChan != nil:
cookie.pingChan <- true
// Unchecked requests without replies don't have any channels,
// so we can't do anything with them except let them pass by.
}
}
}
}
// processEventOrError takes an eventOrError, type switches on it,
// and returns it in Go idiomatic style.
func processEventOrError(everr eventOrError) (Event, Error) {
switch ee := everr.(type) {
case Event:
return ee, nil
case Error:
return nil, ee
default:
Logger.Printf("Invalid event/error type: %T", everr)
return nil, nil
}
}
// WaitForEvent returns the next event from the server.
// It will block until an event is available.
// WaitForEvent returns either an Event or an Error. (Returning both
// is a bug.) Note than an Error here is an X error and not an XGB error. That
// is, X errors are sometimes completely expected (and you may want to ignore
// them in some cases).
//
// If both the event and error are nil, then the connection has been closed.
func (c *Conn) WaitForEvent() (Event, Error) {
return processEventOrError(<-c.eventChan)
}
// PollForEvent returns the next event from the server if one is available in
// the internal queue without blocking. Note that unlike WaitForEvent, both
// Event and Error could be nil. Indeed, they are both nil when the event queue
// is empty.
func (c *Conn) PollForEvent() (Event, Error) {
select {
case everr := <-c.eventChan:
return processEventOrError(everr)
default:
return nil, nil
}
}

14910
vendor/github.com/BurntSushi/xgb/xproto/xproto.go generated vendored
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4
vendor/github.com/creack/pty/.gitignore generated vendored
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@ -1,4 +0,0 @@
[568].out
_go*
_test*
_obj

17
vendor/github.com/creack/pty/Dockerfile.golang generated vendored
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@ -1,17 +0,0 @@
ARG GOVERSION=1.14
FROM golang:${GOVERSION}
# Set base env.
ARG GOOS=linux
ARG GOARCH=amd64
ENV GOOS=${GOOS} GOARCH=${GOARCH} CGO_ENABLED=0 GOFLAGS='-v -ldflags=-s -ldflags=-w'
# Pre compile the stdlib for 386/arm (32bits).
RUN go build -a std
# Add the code to the image.
WORKDIR pty
ADD . .
# Build the lib.
RUN go build

23
vendor/github.com/creack/pty/Dockerfile.riscv generated vendored
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@ -1,23 +0,0 @@
# NOTE: Using 1.13 as a base to build the RISCV compiler, the resulting version is based on go1.6.
FROM golang:1.13
# Clone and complie a riscv compatible version of the go compiler.
RUN git clone https://review.gerrithub.io/riscv/riscv-go /riscv-go
# riscvdev branch HEAD as of 2019-06-29.
RUN cd /riscv-go && git checkout 04885fddd096d09d4450726064d06dd107e374bf
ENV PATH=/riscv-go/misc/riscv:/riscv-go/bin:$PATH
RUN cd /riscv-go/src && GOROOT_BOOTSTRAP=$(go env GOROOT) ./make.bash
ENV GOROOT=/riscv-go
# Set the base env.
ENV GOOS=linux GOARCH=riscv CGO_ENABLED=0 GOFLAGS='-v -ldflags=-s -ldflags=-w'
# Pre compile the stdlib.
RUN go build -a std
# Add the code to the image.
WORKDIR pty
ADD . .
# Build the lib.
RUN go build

23
vendor/github.com/creack/pty/LICENSE generated vendored
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@ -1,23 +0,0 @@
Copyright (c) 2011 Keith Rarick
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall
be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

107
vendor/github.com/creack/pty/README.md generated vendored
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@ -1,107 +0,0 @@
# pty
Pty is a Go package for using unix pseudo-terminals.
## Install
```sh
go get github.com/creack/pty
```
## Examples
Note that those examples are for demonstration purpose only, to showcase how to use the library. They are not meant to be used in any kind of production environment.
### Command
```go
package main
import (
"io"
"os"
"os/exec"
"github.com/creack/pty"
)
func main() {
c := exec.Command("grep", "--color=auto", "bar")
f, err := pty.Start(c)
if err != nil {
panic(err)
}
go func() {
f.Write([]byte("foo\n"))
f.Write([]byte("bar\n"))
f.Write([]byte("baz\n"))
f.Write([]byte{4}) // EOT
}()
io.Copy(os.Stdout, f)
}
```
### Shell
```go
package main
import (
"io"
"log"
"os"
"os/exec"
"os/signal"
"syscall"
"github.com/creack/pty"
"golang.org/x/term"
)
func test() error {
// Create arbitrary command.
c := exec.Command("bash")
// Start the command with a pty.
ptmx, err := pty.Start(c)
if err != nil {
return err
}
// Make sure to close the pty at the end.
defer func() { _ = ptmx.Close() }() // Best effort.
// Handle pty size.
ch := make(chan os.Signal, 1)
signal.Notify(ch, syscall.SIGWINCH)
go func() {
for range ch {
if err := pty.InheritSize(os.Stdin, ptmx); err != nil {
log.Printf("error resizing pty: %s", err)
}
}
}()
ch <- syscall.SIGWINCH // Initial resize.
defer func() { signal.Stop(ch); close(ch) }() // Cleanup signals when done.
// Set stdin in raw mode.
oldState, err := term.MakeRaw(int(os.Stdin.Fd()))
if err != nil {
panic(err)
}
defer func() { _ = term.Restore(int(os.Stdin.Fd()), oldState) }() // Best effort.
// Copy stdin to the pty and the pty to stdout.
// NOTE: The goroutine will keep reading until the next keystroke before returning.
go func() { _, _ = io.Copy(ptmx, os.Stdin) }()
_, _ = io.Copy(os.Stdout, ptmx)
return nil
}
func main() {
if err := test(); err != nil {
log.Fatal(err)
}
}
```

16
vendor/github.com/creack/pty/doc.go generated vendored
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@ -1,16 +0,0 @@
// Package pty provides functions for working with Unix terminals.
package pty
import (
"errors"
"os"
)
// ErrUnsupported is returned if a function is not
// available on the current platform.
var ErrUnsupported = errors.New("unsupported")
// Open a pty and its corresponding tty.
func Open() (pty, tty *os.File, err error) {
return open()
}

4
vendor/github.com/creack/pty/go.mod generated vendored
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@ -1,4 +0,0 @@
module github.com/creack/pty
go 1.13

13
vendor/github.com/creack/pty/ioctl.go generated vendored
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@ -1,13 +0,0 @@
// +build !windows,!solaris
package pty
import "syscall"
func ioctl(fd, cmd, ptr uintptr) error {
_, _, e := syscall.Syscall(syscall.SYS_IOCTL, fd, cmd, ptr)
if e != 0 {
return e
}
return nil
}

39
vendor/github.com/creack/pty/ioctl_bsd.go generated vendored
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@ -1,39 +0,0 @@
// +build darwin dragonfly freebsd netbsd openbsd
package pty
// from <sys/ioccom.h>
const (
_IOC_VOID uintptr = 0x20000000
_IOC_OUT uintptr = 0x40000000
_IOC_IN uintptr = 0x80000000
_IOC_IN_OUT uintptr = _IOC_OUT | _IOC_IN
_IOC_DIRMASK = _IOC_VOID | _IOC_OUT | _IOC_IN
_IOC_PARAM_SHIFT = 13
_IOC_PARAM_MASK = (1 << _IOC_PARAM_SHIFT) - 1
)
func _IOC_PARM_LEN(ioctl uintptr) uintptr {
return (ioctl >> 16) & _IOC_PARAM_MASK
}
func _IOC(inout uintptr, group byte, ioctl_num uintptr, param_len uintptr) uintptr {
return inout | (param_len&_IOC_PARAM_MASK)<<16 | uintptr(group)<<8 | ioctl_num
}
func _IO(group byte, ioctl_num uintptr) uintptr {
return _IOC(_IOC_VOID, group, ioctl_num, 0)
}
func _IOR(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
return _IOC(_IOC_OUT, group, ioctl_num, param_len)
}
func _IOW(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
return _IOC(_IOC_IN, group, ioctl_num, param_len)
}
func _IOWR(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
return _IOC(_IOC_IN_OUT, group, ioctl_num, param_len)
}

31
vendor/github.com/creack/pty/ioctl_solaris.go generated vendored
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@ -1,31 +0,0 @@
package pty
import (
"unsafe"
"golang.org/x/sys/unix"
)
const (
// see /usr/include/sys/stropts.h
I_PUSH = uintptr((int32('S')<<8 | 002))
I_STR = uintptr((int32('S')<<8 | 010))
I_FIND = uintptr((int32('S')<<8 | 013))
// see /usr/include/sys/ptms.h
ISPTM = (int32('P') << 8) | 1
UNLKPT = (int32('P') << 8) | 2
PTSSTTY = (int32('P') << 8) | 3
ZONEPT = (int32('P') << 8) | 4
OWNERPT = (int32('P') << 8) | 5
)
type strioctl struct {
ic_cmd int32
ic_timout int32
ic_len int32
ic_dp unsafe.Pointer
}
func ioctl(fd, cmd, ptr uintptr) error {
return unix.IoctlSetInt(int(fd), uint(cmd), int(ptr))
}

19
vendor/github.com/creack/pty/mktypes.bash generated vendored
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@ -1,19 +0,0 @@
#!/usr/bin/env bash
GOOSARCH="${GOOS}_${GOARCH}"
case "$GOOSARCH" in
_* | *_ | _)
echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
exit 1
;;
esac
GODEFS="go tool cgo -godefs"
$GODEFS types.go |gofmt > ztypes_$GOARCH.go
case $GOOS in
freebsd|dragonfly|netbsd|openbsd)
$GODEFS types_$GOOS.go |gofmt > ztypes_$GOOSARCH.go
;;
esac

65
vendor/github.com/creack/pty/pty_darwin.go generated vendored
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@ -1,65 +0,0 @@
package pty
import (
"errors"
"os"
"syscall"
"unsafe"
)
func open() (pty, tty *os.File, err error) {
pFD, err := syscall.Open("/dev/ptmx", syscall.O_RDWR|syscall.O_CLOEXEC, 0)
if err != nil {
return nil, nil, err
}
p := os.NewFile(uintptr(pFD), "/dev/ptmx")
// In case of error after this point, make sure we close the ptmx fd.
defer func() {
if err != nil {
_ = p.Close() // Best effort.
}
}()
sname, err := ptsname(p)
if err != nil {
return nil, nil, err
}
if err := grantpt(p); err != nil {
return nil, nil, err
}
if err := unlockpt(p); err != nil {
return nil, nil, err
}
t, err := os.OpenFile(sname, os.O_RDWR|syscall.O_NOCTTY, 0)
if err != nil {
return nil, nil, err
}
return p, t, nil
}
func ptsname(f *os.File) (string, error) {
n := make([]byte, _IOC_PARM_LEN(syscall.TIOCPTYGNAME))
err := ioctl(f.Fd(), syscall.TIOCPTYGNAME, uintptr(unsafe.Pointer(&n[0])))
if err != nil {
return "", err
}
for i, c := range n {
if c == 0 {
return string(n[:i]), nil
}
}
return "", errors.New("TIOCPTYGNAME string not NUL-terminated")
}
func grantpt(f *os.File) error {
return ioctl(f.Fd(), syscall.TIOCPTYGRANT, 0)
}
func unlockpt(f *os.File) error {
return ioctl(f.Fd(), syscall.TIOCPTYUNLK, 0)
}

80
vendor/github.com/creack/pty/pty_dragonfly.go generated vendored
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@ -1,80 +0,0 @@
package pty
import (
"errors"
"os"
"strings"
"syscall"
"unsafe"
)
// same code as pty_darwin.go
func open() (pty, tty *os.File, err error) {
p, err := os.OpenFile("/dev/ptmx", os.O_RDWR, 0)
if err != nil {
return nil, nil, err
}
// In case of error after this point, make sure we close the ptmx fd.
defer func() {
if err != nil {
_ = p.Close() // Best effort.
}
}()
sname, err := ptsname(p)
if err != nil {
return nil, nil, err
}
if err := grantpt(p); err != nil {
return nil, nil, err
}
if err := unlockpt(p); err != nil {
return nil, nil, err
}
t, err := os.OpenFile(sname, os.O_RDWR, 0)
if err != nil {
return nil, nil, err
}
return p, t, nil
}
func grantpt(f *os.File) error {
_, err := isptmaster(f.Fd())
return err
}
func unlockpt(f *os.File) error {
_, err := isptmaster(f.Fd())
return err
}
func isptmaster(fd uintptr) (bool, error) {
err := ioctl(fd, syscall.TIOCISPTMASTER, 0)
return err == nil, err
}
var (
emptyFiodgnameArg fiodgnameArg
ioctl_FIODNAME = _IOW('f', 120, unsafe.Sizeof(emptyFiodgnameArg))
)
func ptsname(f *os.File) (string, error) {
name := make([]byte, _C_SPECNAMELEN)
fa := fiodgnameArg{Name: (*byte)(unsafe.Pointer(&name[0])), Len: _C_SPECNAMELEN, Pad_cgo_0: [4]byte{0, 0, 0, 0}}
err := ioctl(f.Fd(), ioctl_FIODNAME, uintptr(unsafe.Pointer(&fa)))
if err != nil {
return "", err
}
for i, c := range name {
if c == 0 {
s := "/dev/" + string(name[:i])
return strings.Replace(s, "ptm", "pts", -1), nil
}
}
return "", errors.New("TIOCPTYGNAME string not NUL-terminated")
}

78
vendor/github.com/creack/pty/pty_freebsd.go generated vendored
View File

@ -1,78 +0,0 @@
package pty
import (
"errors"
"os"
"syscall"
"unsafe"
)
func posixOpenpt(oflag int) (fd int, err error) {
r0, _, e1 := syscall.Syscall(syscall.SYS_POSIX_OPENPT, uintptr(oflag), 0, 0)
fd = int(r0)
if e1 != 0 {
err = e1
}
return fd, err
}
func open() (pty, tty *os.File, err error) {
fd, err := posixOpenpt(syscall.O_RDWR | syscall.O_CLOEXEC)
if err != nil {
return nil, nil, err
}
p := os.NewFile(uintptr(fd), "/dev/pts")
// In case of error after this point, make sure we close the pts fd.
defer func() {
if err != nil {
_ = p.Close() // Best effort.
}
}()
sname, err := ptsname(p)
if err != nil {
return nil, nil, err
}
t, err := os.OpenFile("/dev/"+sname, os.O_RDWR, 0)
if err != nil {
return nil, nil, err
}
return p, t, nil
}
func isptmaster(fd uintptr) (bool, error) {
err := ioctl(fd, syscall.TIOCPTMASTER, 0)
return err == nil, err
}
var (
emptyFiodgnameArg fiodgnameArg
ioctlFIODGNAME = _IOW('f', 120, unsafe.Sizeof(emptyFiodgnameArg))
)
func ptsname(f *os.File) (string, error) {
master, err := isptmaster(f.Fd())
if err != nil {
return "", err
}
if !master {
return "", syscall.EINVAL
}
const n = _C_SPECNAMELEN + 1
var (
buf = make([]byte, n)
arg = fiodgnameArg{Len: n, Buf: (*byte)(unsafe.Pointer(&buf[0]))}
)
if err := ioctl(f.Fd(), ioctlFIODGNAME, uintptr(unsafe.Pointer(&arg))); err != nil {
return "", err
}
for i, c := range buf {
if c == 0 {
return string(buf[:i]), nil
}
}
return "", errors.New("FIODGNAME string not NUL-terminated")
}

51
vendor/github.com/creack/pty/pty_linux.go generated vendored
View File

@ -1,51 +0,0 @@
package pty
import (
"os"
"strconv"
"syscall"
"unsafe"
)
func open() (pty, tty *os.File, err error) {
p, err := os.OpenFile("/dev/ptmx", os.O_RDWR, 0)
if err != nil {
return nil, nil, err
}
// In case of error after this point, make sure we close the ptmx fd.
defer func() {
if err != nil {
_ = p.Close() // Best effort.
}
}()
sname, err := ptsname(p)
if err != nil {
return nil, nil, err
}
if err := unlockpt(p); err != nil {
return nil, nil, err
}
t, err := os.OpenFile(sname, os.O_RDWR|syscall.O_NOCTTY, 0)
if err != nil {
return nil, nil, err
}
return p, t, nil
}
func ptsname(f *os.File) (string, error) {
var n _C_uint
err := ioctl(f.Fd(), syscall.TIOCGPTN, uintptr(unsafe.Pointer(&n)))
if err != nil {
return "", err
}
return "/dev/pts/" + strconv.Itoa(int(n)), nil
}
func unlockpt(f *os.File) error {
var u _C_int
// use TIOCSPTLCK with a pointer to zero to clear the lock
return ioctl(f.Fd(), syscall.TIOCSPTLCK, uintptr(unsafe.Pointer(&u)))
}

66
vendor/github.com/creack/pty/pty_netbsd.go generated vendored
View File

@ -1,66 +0,0 @@
package pty
import (
"errors"
"os"
"syscall"
"unsafe"
)
func open() (pty, tty *os.File, err error) {
p, err := os.OpenFile("/dev/ptmx", os.O_RDWR, 0)
if err != nil {
return nil, nil, err
}
// In case of error after this point, make sure we close the ptmx fd.
defer func() {
if err != nil {
_ = p.Close() // Best effort.
}
}()
sname, err := ptsname(p)
if err != nil {
return nil, nil, err
}
if err := grantpt(p); err != nil {
return nil, nil, err
}
// In NetBSD unlockpt() does nothing, so it isn't called here.
t, err := os.OpenFile(sname, os.O_RDWR|syscall.O_NOCTTY, 0)
if err != nil {
return nil, nil, err
}
return p, t, nil
}
func ptsname(f *os.File) (string, error) {
/*
* from ptsname(3): The ptsname() function is equivalent to:
* struct ptmget pm;
* ioctl(fd, TIOCPTSNAME, &pm) == -1 ? NULL : pm.sn;
*/
var ptm ptmget
if err := ioctl(f.Fd(), uintptr(ioctl_TIOCPTSNAME), uintptr(unsafe.Pointer(&ptm))); err != nil {
return "", err
}
name := make([]byte, len(ptm.Sn))
for i, c := range ptm.Sn {
name[i] = byte(c)
if c == 0 {
return string(name[:i]), nil
}
}
return "", errors.New("TIOCPTSNAME string not NUL-terminated")
}
func grantpt(f *os.File) error {
/*
* from grantpt(3): Calling grantpt() is equivalent to:
* ioctl(fd, TIOCGRANTPT, 0);
*/
return ioctl(f.Fd(), uintptr(ioctl_TIOCGRANTPT), 0)
}

33
vendor/github.com/creack/pty/pty_openbsd.go generated vendored
View File

@ -1,33 +0,0 @@
package pty
import (
"os"
"syscall"
"unsafe"
)
func open() (pty, tty *os.File, err error) {
/*
* from ptm(4):
* The PTMGET command allocates a free pseudo terminal, changes its
* ownership to the caller, revokes the access privileges for all previous
* users, opens the file descriptors for the pty and tty devices and
* returns them to the caller in struct ptmget.
*/
p, err := os.OpenFile("/dev/ptm", os.O_RDWR|syscall.O_CLOEXEC, 0)
if err != nil {
return nil, nil, err
}
defer p.Close()
var ptm ptmget
if err := ioctl(p.Fd(), uintptr(ioctl_PTMGET), uintptr(unsafe.Pointer(&ptm))); err != nil {
return nil, nil, err
}
pty = os.NewFile(uintptr(ptm.Cfd), "/dev/ptm")
tty = os.NewFile(uintptr(ptm.Sfd), "/dev/ptm")
return pty, tty, nil
}

140
vendor/github.com/creack/pty/pty_solaris.go generated vendored
View File

@ -1,140 +0,0 @@
package pty
/* based on:
http://src.illumos.org/source/xref/illumos-gate/usr/src/lib/libc/port/gen/pt.c
*/
import (
"errors"
"os"
"strconv"
"syscall"
"unsafe"
"golang.org/x/sys/unix"
)
const NODEV = ^uint64(0)
func open() (pty, tty *os.File, err error) {
masterfd, err := syscall.Open("/dev/ptmx", syscall.O_RDWR|unix.O_NOCTTY, 0)
//masterfd, err := syscall.Open("/dev/ptmx", syscall.O_RDWR|syscall.O_CLOEXEC|unix.O_NOCTTY, 0)
if err != nil {
return nil, nil, err
}
p := os.NewFile(uintptr(masterfd), "/dev/ptmx")
sname, err := ptsname(p)
if err != nil {
return nil, nil, err
}
err = grantpt(p)
if err != nil {
return nil, nil, err
}
err = unlockpt(p)
if err != nil {
return nil, nil, err
}
slavefd, err := syscall.Open(sname, os.O_RDWR|unix.O_NOCTTY, 0)
if err != nil {
return nil, nil, err
}
t := os.NewFile(uintptr(slavefd), sname)
// pushing terminal driver STREAMS modules as per pts(7)
for _, mod := range []string{"ptem", "ldterm", "ttcompat"} {
err = streams_push(t, mod)
if err != nil {
return nil, nil, err
}
}
return p, t, nil
}
func minor(x uint64) uint64 {
return x & 0377
}
func ptsdev(fd uintptr) uint64 {
istr := strioctl{ISPTM, 0, 0, nil}
err := ioctl(fd, I_STR, uintptr(unsafe.Pointer(&istr)))
if err != nil {
return NODEV
}
var status unix.Stat_t
err = unix.Fstat(int(fd), &status)
if err != nil {
return NODEV
}
return uint64(minor(status.Rdev))
}
func ptsname(f *os.File) (string, error) {
dev := ptsdev(f.Fd())
if dev == NODEV {
return "", errors.New("not a master pty")
}
fn := "/dev/pts/" + strconv.FormatInt(int64(dev), 10)
// access(2) creates the slave device (if the pty exists)
// F_OK == 0 (unistd.h)
err := unix.Access(fn, 0)
if err != nil {
return "", err
}
return fn, nil
}
type pt_own struct {
pto_ruid int32
pto_rgid int32
}
func grantpt(f *os.File) error {
if ptsdev(f.Fd()) == NODEV {
return errors.New("not a master pty")
}
var pto pt_own
pto.pto_ruid = int32(os.Getuid())
// XXX should first attempt to get gid of DEFAULT_TTY_GROUP="tty"
pto.pto_rgid = int32(os.Getgid())
var istr strioctl
istr.ic_cmd = OWNERPT
istr.ic_timout = 0
istr.ic_len = int32(unsafe.Sizeof(istr))
istr.ic_dp = unsafe.Pointer(&pto)
err := ioctl(f.Fd(), I_STR, uintptr(unsafe.Pointer(&istr)))
if err != nil {
return errors.New("access denied")
}
return nil
}
func unlockpt(f *os.File) error {
istr := strioctl{UNLKPT, 0, 0, nil}
return ioctl(f.Fd(), I_STR, uintptr(unsafe.Pointer(&istr)))
}
// push STREAMS modules if not already done so
func streams_push(f *os.File, mod string) error {
var err error
buf := []byte(mod)
// XXX I_FIND is not returning an error when the module
// is already pushed even though truss reports a return
// value of 1. A bug in the Go Solaris syscall interface?
// XXX without this we are at risk of the issue
// https://www.illumos.org/issues/9042
// but since we are not using libc or XPG4.2, we should not be
// double-pushing modules
err = ioctl(f.Fd(), I_FIND, uintptr(unsafe.Pointer(&buf[0])))
if err != nil {
return nil
}
err = ioctl(f.Fd(), I_PUSH, uintptr(unsafe.Pointer(&buf[0])))
return err
}

11
vendor/github.com/creack/pty/pty_unsupported.go generated vendored
View File

@ -1,11 +0,0 @@
// +build !linux,!darwin,!freebsd,!dragonfly,!netbsd,!openbsd,!solaris
package pty
import (
"os"
)
func open() (pty, tty *os.File, err error) {
return nil, nil, ErrUnsupported
}

74
vendor/github.com/creack/pty/run.go generated vendored
View File

@ -1,74 +0,0 @@
// +build !windows
package pty
import (
"os"
"os/exec"
"syscall"
)
// Start assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
// and c.Stderr, calls c.Start, and returns the File of the tty's
// corresponding pty.
//
// Starts the process in a new session and sets the controlling terminal.
func Start(c *exec.Cmd) (pty *os.File, err error) {
return StartWithSize(c, nil)
}
// StartWithSize assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
// and c.Stderr, calls c.Start, and returns the File of the tty's
// corresponding pty.
//
// This will resize the pty to the specified size before starting the command.
// Starts the process in a new session and sets the controlling terminal.
func StartWithSize(c *exec.Cmd, sz *Winsize) (pty *os.File, err error) {
if c.SysProcAttr == nil {
c.SysProcAttr = &syscall.SysProcAttr{}
}
c.SysProcAttr.Setsid = true
c.SysProcAttr.Setctty = true
return StartWithAttrs(c, sz, c.SysProcAttr)
}
// StartWithAttrs assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
// and c.Stderr, calls c.Start, and returns the File of the tty's
// corresponding pty.
//
// This will resize the pty to the specified size before starting the command if a size is provided.
// The `attrs` parameter overrides the one set in c.SysProcAttr.
//
// This should generally not be needed. Used in some edge cases where it is needed to create a pty
// without a controlling terminal.
func StartWithAttrs(c *exec.Cmd, sz *Winsize, attrs *syscall.SysProcAttr) (pty *os.File, err error) {
pty, tty, err := Open()
if err != nil {
return nil, err
}
defer tty.Close()
if sz != nil {
if err := Setsize(pty, sz); err != nil {
pty.Close()
return nil, err
}
}
if c.Stdout == nil {
c.Stdout = tty
}
if c.Stderr == nil {
c.Stderr = tty
}
if c.Stdin == nil {
c.Stdin = tty
}
c.SysProcAttr = attrs
if err := c.Start(); err != nil {
_ = pty.Close()
return nil, err
}
return pty, err
}

64
vendor/github.com/creack/pty/test_crosscompile.sh generated vendored
View File

@ -1,64 +0,0 @@
#!/usr/bin/env sh
# Test script checking that all expected os/arch compile properly.
# Does not actually test the logic, just the compilation so we make sure we don't break code depending on the lib.
echo2() {
echo $@ >&2
}
trap end 0
end() {
[ "$?" = 0 ] && echo2 "Pass." || (echo2 "Fail."; exit 1)
}
cross() {
os=$1
shift
echo2 "Build for $os."
for arch in $@; do
echo2 " - $os/$arch"
GOOS=$os GOARCH=$arch go build
done
echo2
}
set -e
cross linux amd64 386 arm arm64 ppc64 ppc64le s390x mips mipsle mips64 mips64le
cross darwin amd64 arm64
cross freebsd amd64 386 arm arm64
cross netbsd amd64 386 arm arm64
cross openbsd amd64 386 arm arm64
cross dragonfly amd64
cross solaris amd64
# Not expected to work but should still compile.
cross windows amd64 386 arm
# TODO: Fix compilation error on openbsd/arm.
# TODO: Merge the solaris PR.
# Some os/arch require a different compiler. Run in docker.
if ! hash docker; then
# If docker is not present, stop here.
return
fi
echo2 "Build for linux."
echo2 " - linux/riscv"
docker build -t creack-pty-test -f Dockerfile.riscv .
# Golang dropped support for darwin 32bits since go1.15. Make sure the lib still compile with go1.14 on those archs.
echo2 "Build for darwin (32bits)."
echo2 " - darwin/386"
docker build -t creack-pty-test -f Dockerfile.golang --build-arg=GOVERSION=1.14 --build-arg=GOOS=darwin --build-arg=GOARCH=386 .
echo2 " - darwin/arm"
docker build -t creack-pty-test -f Dockerfile.golang --build-arg=GOVERSION=1.14 --build-arg=GOOS=darwin --build-arg=GOARCH=arm .
# Run a single test for an old go version. Would be best with go1.0, but not available on Dockerhub.
# Using 1.6 as it is the base version for the RISCV compiler.
# Would also be better to run all the tests, not just one, need to refactor this file to allow for specifc archs per version.
echo2 "Build for linux - go1.6."
echo2 " - linux/amd64"
docker build -t creack-pty-test -f Dockerfile.golang --build-arg=GOVERSION=1.6 --build-arg=GOOS=linux --build-arg=GOARCH=amd64 .

64
vendor/github.com/creack/pty/util.go generated vendored
View File

@ -1,64 +0,0 @@
// +build !windows,!solaris
package pty
import (
"os"
"syscall"
"unsafe"
)
// InheritSize applies the terminal size of pty to tty. This should be run
// in a signal handler for syscall.SIGWINCH to automatically resize the tty when
// the pty receives a window size change notification.
func InheritSize(pty, tty *os.File) error {
size, err := GetsizeFull(pty)
if err != nil {
return err
}
err = Setsize(tty, size)
if err != nil {
return err
}
return nil
}
// Setsize resizes t to s.
func Setsize(t *os.File, ws *Winsize) error {
return windowRectCall(ws, t.Fd(), syscall.TIOCSWINSZ)
}
// GetsizeFull returns the full terminal size description.
func GetsizeFull(t *os.File) (size *Winsize, err error) {
var ws Winsize
err = windowRectCall(&ws, t.Fd(), syscall.TIOCGWINSZ)
return &ws, err
}
// Getsize returns the number of rows (lines) and cols (positions
// in each line) in terminal t.
func Getsize(t *os.File) (rows, cols int, err error) {
ws, err := GetsizeFull(t)
return int(ws.Rows), int(ws.Cols), err
}
// Winsize describes the terminal size.
type Winsize struct {
Rows uint16 // ws_row: Number of rows (in cells)
Cols uint16 // ws_col: Number of columns (in cells)
X uint16 // ws_xpixel: Width in pixels
Y uint16 // ws_ypixel: Height in pixels
}
func windowRectCall(ws *Winsize, fd, a2 uintptr) error {
_, _, errno := syscall.Syscall(
syscall.SYS_IOCTL,
fd,
a2,
uintptr(unsafe.Pointer(ws)),
)
if errno != 0 {
return syscall.Errno(errno)
}
return nil
}

52
vendor/github.com/creack/pty/util_solaris.go generated vendored
View File

@ -1,52 +0,0 @@
//
package pty
import (
"os"
"golang.org/x/sys/unix"
)
const (
TIOCGWINSZ = 21608 // 'T' << 8 | 104
TIOCSWINSZ = 21607 // 'T' << 8 | 103
)
// Winsize describes the terminal size.
type Winsize struct {
Rows uint16 // ws_row: Number of rows (in cells)
Cols uint16 // ws_col: Number of columns (in cells)
X uint16 // ws_xpixel: Width in pixels
Y uint16 // ws_ypixel: Height in pixels
}
// GetsizeFull returns the full terminal size description.
func GetsizeFull(t *os.File) (size *Winsize, err error) {
var wsz *unix.Winsize
wsz, err = unix.IoctlGetWinsize(int(t.Fd()), TIOCGWINSZ)
if err != nil {
return nil, err
} else {
return &Winsize{wsz.Row, wsz.Col, wsz.Xpixel, wsz.Ypixel}, nil
}
}
// Get Windows Size
func Getsize(t *os.File) (rows, cols int, err error) {
var wsz *unix.Winsize
wsz, err = unix.IoctlGetWinsize(int(t.Fd()), TIOCGWINSZ)
if err != nil {
return 80, 25, err
} else {
return int(wsz.Row), int(wsz.Col), nil
}
}
// Setsize resizes t to s.
func Setsize(t *os.File, ws *Winsize) error {
wsz := unix.Winsize{ws.Rows, ws.Cols, ws.X, ws.Y}
return unix.IoctlSetWinsize(int(t.Fd()), TIOCSWINSZ, &wsz)
}

9
vendor/github.com/creack/pty/ztypes_386.go generated vendored
View File

@ -1,9 +0,0 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types.go
package pty
type (
_C_int int32
_C_uint uint32
)

9
vendor/github.com/creack/pty/ztypes_amd64.go generated vendored
View File

@ -1,9 +0,0 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types.go
package pty
type (
_C_int int32
_C_uint uint32
)

9
vendor/github.com/creack/pty/ztypes_arm.go generated vendored
View File

@ -1,9 +0,0 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types.go
package pty
type (
_C_int int32
_C_uint uint32
)

11
vendor/github.com/creack/pty/ztypes_arm64.go generated vendored
View File

@ -1,11 +0,0 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types.go
// +build arm64
package pty
type (
_C_int int32
_C_uint uint32
)

14
vendor/github.com/creack/pty/ztypes_dragonfly_amd64.go generated vendored
View File

@ -1,14 +0,0 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types_dragonfly.go
package pty
const (
_C_SPECNAMELEN = 0x3f
)
type fiodgnameArg struct {
Name *byte
Len uint32
Pad_cgo_0 [4]byte
}

13
vendor/github.com/creack/pty/ztypes_freebsd_386.go generated vendored
View File

@ -1,13 +0,0 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types_freebsd.go
package pty
const (
_C_SPECNAMELEN = 0x3f
)
type fiodgnameArg struct {
Len int32
Buf *byte
}

14
vendor/github.com/creack/pty/ztypes_freebsd_amd64.go generated vendored
View File

@ -1,14 +0,0 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types_freebsd.go
package pty
const (
_C_SPECNAMELEN = 0x3f
)
type fiodgnameArg struct {
Len int32
Pad_cgo_0 [4]byte
Buf *byte
}

13
vendor/github.com/creack/pty/ztypes_freebsd_arm.go generated vendored
View File

@ -1,13 +0,0 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types_freebsd.go
package pty
const (
_C_SPECNAMELEN = 0x3f
)
type fiodgnameArg struct {
Len int32
Buf *byte
}

13
vendor/github.com/creack/pty/ztypes_freebsd_arm64.go generated vendored
View File

@ -1,13 +0,0 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs types_freebsd.go
package pty
const (
_C_SPECNAMELEN = 0xff
)
type fiodgnameArg struct {
Len int32
Buf *byte
}

12
vendor/github.com/creack/pty/ztypes_loongarchx.go generated vendored
View File

@ -1,12 +0,0 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types.go
// +build linux
// +build loongarch32 loongarch64
package pty
type (
_C_int int32
_C_uint uint32
)

12
vendor/github.com/creack/pty/ztypes_mipsx.go generated vendored
View File

@ -1,12 +0,0 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types.go
// +build linux
// +build mips mipsle mips64 mips64le
package pty
type (
_C_int int32
_C_uint uint32
)

14
vendor/github.com/creack/pty/ztypes_netbsd_32bit_int.go generated vendored
View File

@ -1,14 +0,0 @@
// +build netbsd
// +build 386 amd64 arm arm64
package pty
type ptmget struct {
Cfd int32
Sfd int32
Cn [1024]int8
Sn [1024]int8
}
var ioctl_TIOCPTSNAME = 0x48087448
var ioctl_TIOCGRANTPT = 0x20007447

13
vendor/github.com/creack/pty/ztypes_openbsd_32bit_int.go generated vendored
View File

@ -1,13 +0,0 @@
// +build openbsd
// +build 386 amd64 arm arm64
package pty
type ptmget struct {
Cfd int32
Sfd int32
Cn [16]int8
Sn [16]int8
}
var ioctl_PTMGET = 0x40287401

11
vendor/github.com/creack/pty/ztypes_ppc64.go generated vendored
View File

@ -1,11 +0,0 @@
// +build ppc64
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types.go
package pty
type (
_C_int int32
_C_uint uint32
)

11
vendor/github.com/creack/pty/ztypes_ppc64le.go generated vendored
View File

@ -1,11 +0,0 @@
// +build ppc64le
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types.go
package pty
type (
_C_int int32
_C_uint uint32
)

11
vendor/github.com/creack/pty/ztypes_riscvx.go generated vendored
View File

@ -1,11 +0,0 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs types.go
// +build riscv riscv64
package pty
type (
_C_int int32
_C_uint uint32
)

11
vendor/github.com/creack/pty/ztypes_s390x.go generated vendored
View File

@ -1,11 +0,0 @@
// +build s390x
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs types.go
package pty
type (
_C_int int32
_C_uint uint32
)

25
vendor/github.com/d-tsuji/clipboard/.gitignore generated vendored
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@ -1,25 +0,0 @@
# Binaries for programs and plugins
*.exe
*.exe~
*.dll
*.so
*.dylib
# Test binary, built with `go test -c`
*.test
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
# Dependency directories (remove the comment below to include it)
# vendor/
# GoLand
.idea/
# Executable Binary
clipboard
# Go test coverage
c.out
coverage.html

21
vendor/github.com/d-tsuji/clipboard/LICENSE generated vendored
View File

@ -1,21 +0,0 @@
MIT License
Copyright (c) 2020 Tsuji Daishiro
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

33
vendor/github.com/d-tsuji/clipboard/Makefile generated vendored
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@ -1,33 +0,0 @@
.PHONY: all build test lint clean deps devel-deps
BIN := clipboard
BUILD_LDFLAGS := "-s -w"
GOBIN ?= $(shell go env GOPATH)/bin
export GO111MODULE=on
all: clean build
deps:
go mod tidy
devel-deps: deps
GO111MODULE=off go get -u \
golang.org/x/lint/golint
build: clean
go build -ldflags=$(BUILD_LDFLAGS) -o $(BIN)
test: deps
go test -v -race -count=1 ./...
test-cover: deps
go test -v -race -count=1 ./... -cover -coverprofile=c.out
go tool cover -html=c.out -o coverage.html
lint: devel-deps
go vet ./...
$(GOBIN)/golint -set_exit_status ./...
clean:
rm -rf $(BIN)
go clean

37
vendor/github.com/d-tsuji/clipboard/README.md generated vendored
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@ -1,37 +0,0 @@
# clipboard
[![Actions Status](https://github.com/d-tsuji/clipboard/workflows/test/badge.svg)](https://github.com/d-tsuji/clipboard/actions)
[![Doc](https://img.shields.io/badge/doc-reference-blue.svg)](https://pkg.go.dev/github.com/d-tsuji/clipboard)
[![Go Report Card](https://goreportcard.com/badge/github.com/d-tsuji/clipboard)](https://goreportcard.com/report/github.com/d-tsuji/clipboard)
This is a multi-platform clipboard library in Go.
## Abstract
- This is clipboard library in Go, which runs on multiple platforms.
- External clipboard package is not required.
## Supported Platforms
- Windows
- macOS
- Linux, Unix (X11)
## Installation
```
go get github.com/d-tsuji/clipboard
```
## API
```go
package clipboard
// Get returns the current text data of the clipboard.
func Get() (string, error)
// Set sets the current text data of the clipboard.
func Set(text string) error
```

11
vendor/github.com/d-tsuji/clipboard/clipboard.go generated vendored
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@ -1,11 +0,0 @@
package clipboard
// Get returns the current text data of the clipboard.
func Get() (string, error) {
return get()
}
// Set sets the current text data of the clipboard.
func Set(text string) error {
return set(text)
}

20
vendor/github.com/d-tsuji/clipboard/clipboard_darwin.go generated vendored
View File

@ -1,20 +0,0 @@
// +build darwin
package clipboard
import (
"git.wow.st/gmp/clip"
"golang.org/x/xerrors"
)
func set(text string) error {
ok := clip.Set(text)
if !ok {
return xerrors.New("nothing to set string")
}
return nil
}
func get() (string, error) {
return clip.Get(), nil
}

230
vendor/github.com/d-tsuji/clipboard/clipboard_unix.go generated vendored
View File

@ -1,230 +0,0 @@
// The MIT License (MIT)
// Copyright (c) 2016 Alessandro Arzilli
// https://github.com/aarzilli/nucular/blob/master/LICENSE
// +build freebsd linux netbsd openbsd solaris dragonfly
package clipboard
import (
"fmt"
"os"
"time"
"github.com/BurntSushi/xgb"
"github.com/BurntSushi/xgb/xproto"
"golang.org/x/xerrors"
)
const debugClipboardRequests = false
var (
x *xgb.Conn
win xproto.Window
clipboardText string
selnotify chan bool
clipboardAtom, primaryAtom, textAtom, targetsAtom, atomAtom xproto.Atom
targetAtoms []xproto.Atom
clipboardAtomCache = map[xproto.Atom]string{}
doneCh = make(chan interface{}, 1)
)
func start() error {
var err error
xServer := os.Getenv("DISPLAY")
if xServer == "" {
return xerrors.New("could not identify xserver")
}
x, err = xgb.NewConnDisplay(xServer)
if err != nil {
return xerrors.Errorf("%w", err)
}
selnotify = make(chan bool, 1)
win, err = xproto.NewWindowId(x)
if err != nil {
return xerrors.Errorf("%w", err)
}
setup := xproto.Setup(x)
s := setup.DefaultScreen(x)
err = xproto.CreateWindowChecked(x, s.RootDepth, win, s.Root, 100, 100, 1, 1, 0, xproto.WindowClassInputOutput, s.RootVisual, 0, []uint32{}).Check()
if err != nil {
return xerrors.Errorf("%w", err)
}
clipboardAtom = internAtom(x, "CLIPBOARD")
primaryAtom = internAtom(x, "PRIMARY")
textAtom = internAtom(x, "UTF8_STRING")
targetsAtom = internAtom(x, "TARGETS")
atomAtom = internAtom(x, "ATOM")
targetAtoms = []xproto.Atom{targetsAtom, textAtom}
go eventLoop()
return nil
}
func set(text string) error {
if err := start(); err != nil {
return xerrors.Errorf("init clipboard: %w", err)
}
clipboardText = text
ssoc := xproto.SetSelectionOwnerChecked(x, win, clipboardAtom, xproto.TimeCurrentTime)
if err := ssoc.Check(); err != nil {
return xerrors.Errorf("setting clipboard: %w", err)
}
return nil
}
func get() (string, error) {
if err := start(); err != nil {
return "", xerrors.Errorf("init clipboard: %w", err)
}
return getSelection(clipboardAtom)
}
func getSelection(selAtom xproto.Atom) (string, error) {
csc := xproto.ConvertSelectionChecked(x, win, selAtom, textAtom, selAtom, xproto.TimeCurrentTime)
err := csc.Check()
if err != nil {
return "", xerrors.Errorf("convert selection check: %w", err)
}
select {
case r := <-selnotify:
if !r {
return "", nil
}
gpc := xproto.GetProperty(x, true, win, selAtom, textAtom, 0, 5*1024*1024)
gpr, err := gpc.Reply()
if err != nil {
return "", xerrors.Errorf("grp reply: %w", err)
}
if gpr.BytesAfter != 0 {
return "", xerrors.New("clipboard too large")
}
return string(gpr.Value[:gpr.ValueLen]), nil
case <-time.After(1 * time.Second):
return "", xerrors.New("clipboard retrieval failed, timeout")
}
}
func pollForEvent(X *xgb.Conn, events chan<- xgb.Event) {
for {
select {
case <-doneCh:
return
default:
ev, err := X.PollForEvent()
if err != nil {
fmt.Println("wait for event:", err)
}
events <- ev
}
}
}
func eventLoop() {
eventCh := make(chan xgb.Event, 1)
go pollForEvent(x, eventCh)
for {
select {
case event := <-eventCh:
switch e := event.(type) {
case xproto.SelectionRequestEvent:
if debugClipboardRequests {
tgtname := lookupAtom(e.Target)
propname := lookupAtom(e.Property)
fmt.Println("SelectionRequest", e, textAtom, tgtname, propname, "isPrimary:", e.Selection == primaryAtom, "isClipboard:", e.Selection == clipboardAtom)
}
t := clipboardText
switch e.Target {
case textAtom:
if debugClipboardRequests {
fmt.Println("Sending as text")
}
cpc := xproto.ChangePropertyChecked(x, xproto.PropModeReplace, e.Requestor, e.Property, textAtom, 8, uint32(len(t)), []byte(t))
err := cpc.Check()
if err == nil {
sendSelectionNotify(e)
} else {
fmt.Println(err)
}
case targetsAtom:
if debugClipboardRequests {
fmt.Println("Sending targets")
}
buf := make([]byte, len(targetAtoms)*4)
for i, atom := range targetAtoms {
xgb.Put32(buf[i*4:], uint32(atom))
}
err := xproto.ChangePropertyChecked(x, xproto.PropModeReplace, e.Requestor, e.Property, atomAtom, 32, uint32(len(targetAtoms)), buf).Check()
if err == nil {
sendSelectionNotify(e)
} else {
fmt.Println(err)
}
default:
if debugClipboardRequests {
fmt.Println("Skipping")
}
e.Property = 0
sendSelectionNotify(e)
}
case xproto.SelectionNotifyEvent:
selnotify <- (e.Property == clipboardAtom) || (e.Property == primaryAtom)
}
case <-doneCh:
return
}
}
}
func lookupAtom(at xproto.Atom) string {
if s, ok := clipboardAtomCache[at]; ok {
return s
}
reply, err := xproto.GetAtomName(x, at).Reply()
if err != nil {
panic(err)
}
// If we're here, it means we didn't have ths ATOM id cached. So cache it.
atomName := string(reply.Name)
clipboardAtomCache[at] = atomName
return atomName
}
func sendSelectionNotify(e xproto.SelectionRequestEvent) {
sn := xproto.SelectionNotifyEvent{
Time: e.Time,
Requestor: e.Requestor,
Selection: e.Selection,
Target: e.Target,
Property: e.Property}
sec := xproto.SendEventChecked(x, false, e.Requestor, 0, string(sn.Bytes()))
err := sec.Check()
if err != nil {
fmt.Println(err)
}
}
func internAtom(conn *xgb.Conn, n string) xproto.Atom {
iac := xproto.InternAtom(conn, true, uint16(len(n)), n)
iar, err := iac.Reply()
if err != nil {
panic(err)
}
return iar.Atom
}

15
vendor/github.com/d-tsuji/clipboard/clipboard_windows.go generated vendored
View File

@ -1,15 +0,0 @@
// +build windows
package clipboard
import "github.com/lxn/walk"
func get() (string, error) {
c := walk.Clipboard()
return c.Text()
}
func set(text string) error {
c := walk.Clipboard()
return c.SetText(text)
}

13
vendor/github.com/d-tsuji/clipboard/go.mod generated vendored
View File

@ -1,13 +0,0 @@
module github.com/d-tsuji/clipboard
go 1.14
require (
git.wow.st/gmp/clip v0.0.0-20191001134149-1458ba6a7cf5
github.com/BurntSushi/xgb v0.0.0-20200324125942-20f126ea2843
github.com/lxn/walk v0.0.0-20191128110447-55ccb3a9f5c1
github.com/lxn/win v0.0.0-20191128105842-2da648fda5b4 // indirect
golang.org/x/sys v0.0.0-20200509044756-6aff5f38e54f // indirect
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543
gopkg.in/Knetic/govaluate.v3 v3.0.0 // indirect
)

15
vendor/github.com/d-tsuji/clipboard/go.sum generated vendored
View File

@ -1,15 +0,0 @@
git.wow.st/gmp/clip v0.0.0-20191001134149-1458ba6a7cf5 h1:OKeTjZST+/TKvtdA258NXJH+/gIx/xwyZxKrAezNFvk=
git.wow.st/gmp/clip v0.0.0-20191001134149-1458ba6a7cf5/go.mod h1:NLdpaBoMQNFqncwP8OVRNWUDw1Kt9XWm3snfT7cXu24=
github.com/BurntSushi/xgb v0.0.0-20200324125942-20f126ea2843 h1:3iF31c7rp7nGZVDv7YQ+VxOgpipVfPKotLXykjZmwM8=
github.com/BurntSushi/xgb v0.0.0-20200324125942-20f126ea2843/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/lxn/walk v0.0.0-20191128110447-55ccb3a9f5c1 h1:/QwQcwWVOQXcoNuV9tHx30gQ3q7jCE/rKcGjwzsa5tg=
github.com/lxn/walk v0.0.0-20191128110447-55ccb3a9f5c1/go.mod h1:E23UucZGqpuUANJooIbHWCufXvOcT6E7Stq81gU+CSQ=
github.com/lxn/win v0.0.0-20191128105842-2da648fda5b4 h1:5BmtGkQbch91lglMHQ9JIDGiYCL3kBRBA0ItZTvOcEI=
github.com/lxn/win v0.0.0-20191128105842-2da648fda5b4/go.mod h1:ouWl4wViUNh8tPSIwxTVMuS014WakR1hqvBc2I0bMoA=
golang.org/x/sys v0.0.0-20190904154756-749cb33beabd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200509044756-6aff5f38e54f h1:mOhmO9WsBaJCNmaZHPtHs9wOcdqdKCjF6OPJlmDM3KI=
golang.org/x/sys v0.0.0-20200509044756-6aff5f38e54f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gopkg.in/Knetic/govaluate.v3 v3.0.0 h1:18mUyIt4ZlRlFZAAfVetz4/rzlJs9yhN+U02F4u1AOc=
gopkg.in/Knetic/govaluate.v3 v3.0.0/go.mod h1:csKLBORsPbafmSCGTEh3U7Ozmsuq8ZSIlKk1bcqph0E=

15
vendor/github.com/davecgh/go-spew/LICENSE generated vendored
View File

@ -1,15 +0,0 @@
ISC License
Copyright (c) 2012-2016 Dave Collins <dave@davec.name>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

145
vendor/github.com/davecgh/go-spew/spew/bypass.go generated vendored
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@ -1,145 +0,0 @@
// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when the code is not running on Google App Engine, compiled by GopherJS, and
// "-tags safe" is not added to the go build command line. The "disableunsafe"
// tag is deprecated and thus should not be used.
// Go versions prior to 1.4 are disabled because they use a different layout
// for interfaces which make the implementation of unsafeReflectValue more complex.
// +build !js,!appengine,!safe,!disableunsafe,go1.4
package spew
import (
"reflect"
"unsafe"
)
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = false
// ptrSize is the size of a pointer on the current arch.
ptrSize = unsafe.Sizeof((*byte)(nil))
)
type flag uintptr
var (
// flagRO indicates whether the value field of a reflect.Value
// is read-only.
flagRO flag
// flagAddr indicates whether the address of the reflect.Value's
// value may be taken.
flagAddr flag
)
// flagKindMask holds the bits that make up the kind
// part of the flags field. In all the supported versions,
// it is in the lower 5 bits.
const flagKindMask = flag(0x1f)
// Different versions of Go have used different
// bit layouts for the flags type. This table
// records the known combinations.
var okFlags = []struct {
ro, addr flag
}{{
// From Go 1.4 to 1.5
ro: 1 << 5,
addr: 1 << 7,
}, {
// Up to Go tip.
ro: 1<<5 | 1<<6,
addr: 1 << 8,
}}
var flagValOffset = func() uintptr {
field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
if !ok {
panic("reflect.Value has no flag field")
}
return field.Offset
}()
// flagField returns a pointer to the flag field of a reflect.Value.
func flagField(v *reflect.Value) *flag {
return (*flag)(unsafe.Pointer(uintptr(unsafe.Pointer(v)) + flagValOffset))
}
// unsafeReflectValue converts the passed reflect.Value into a one that bypasses
// the typical safety restrictions preventing access to unaddressable and
// unexported data. It works by digging the raw pointer to the underlying
// value out of the protected value and generating a new unprotected (unsafe)
// reflect.Value to it.
//
// This allows us to check for implementations of the Stringer and error
// interfaces to be used for pretty printing ordinarily unaddressable and
// inaccessible values such as unexported struct fields.
func unsafeReflectValue(v reflect.Value) reflect.Value {
if !v.IsValid() || (v.CanInterface() && v.CanAddr()) {
return v
}
flagFieldPtr := flagField(&v)
*flagFieldPtr &^= flagRO
*flagFieldPtr |= flagAddr
return v
}
// Sanity checks against future reflect package changes
// to the type or semantics of the Value.flag field.
func init() {
field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
if !ok {
panic("reflect.Value has no flag field")
}
if field.Type.Kind() != reflect.TypeOf(flag(0)).Kind() {
panic("reflect.Value flag field has changed kind")
}
type t0 int
var t struct {
A t0
// t0 will have flagEmbedRO set.
t0
// a will have flagStickyRO set
a t0
}
vA := reflect.ValueOf(t).FieldByName("A")
va := reflect.ValueOf(t).FieldByName("a")
vt0 := reflect.ValueOf(t).FieldByName("t0")
// Infer flagRO from the difference between the flags
// for the (otherwise identical) fields in t.
flagPublic := *flagField(&vA)
flagWithRO := *flagField(&va) | *flagField(&vt0)
flagRO = flagPublic ^ flagWithRO
// Infer flagAddr from the difference between a value
// taken from a pointer and not.
vPtrA := reflect.ValueOf(&t).Elem().FieldByName("A")
flagNoPtr := *flagField(&vA)
flagPtr := *flagField(&vPtrA)
flagAddr = flagNoPtr ^ flagPtr
// Check that the inferred flags tally with one of the known versions.
for _, f := range okFlags {
if flagRO == f.ro && flagAddr == f.addr {
return
}
}
panic("reflect.Value read-only flag has changed semantics")
}

38
vendor/github.com/davecgh/go-spew/spew/bypasssafe.go generated vendored
View File

@ -1,38 +0,0 @@
// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when the code is running on Google App Engine, compiled by GopherJS, or
// "-tags safe" is added to the go build command line. The "disableunsafe"
// tag is deprecated and thus should not be used.
// +build js appengine safe disableunsafe !go1.4
package spew
import "reflect"
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = true
)
// unsafeReflectValue typically converts the passed reflect.Value into a one
// that bypasses the typical safety restrictions preventing access to
// unaddressable and unexported data. However, doing this relies on access to
// the unsafe package. This is a stub version which simply returns the passed
// reflect.Value when the unsafe package is not available.
func unsafeReflectValue(v reflect.Value) reflect.Value {
return v
}

341
vendor/github.com/davecgh/go-spew/spew/common.go generated vendored
View File

@ -1,341 +0,0 @@
/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"reflect"
"sort"
"strconv"
)
// Some constants in the form of bytes to avoid string overhead. This mirrors
// the technique used in the fmt package.
var (
panicBytes = []byte("(PANIC=")
plusBytes = []byte("+")
iBytes = []byte("i")
trueBytes = []byte("true")
falseBytes = []byte("false")
interfaceBytes = []byte("(interface {})")
commaNewlineBytes = []byte(",\n")
newlineBytes = []byte("\n")
openBraceBytes = []byte("{")
openBraceNewlineBytes = []byte("{\n")
closeBraceBytes = []byte("}")
asteriskBytes = []byte("*")
colonBytes = []byte(":")
colonSpaceBytes = []byte(": ")
openParenBytes = []byte("(")
closeParenBytes = []byte(")")
spaceBytes = []byte(" ")
pointerChainBytes = []byte("->")
nilAngleBytes = []byte("<nil>")
maxNewlineBytes = []byte("<max depth reached>\n")
maxShortBytes = []byte("<max>")
circularBytes = []byte("<already shown>")
circularShortBytes = []byte("<shown>")
invalidAngleBytes = []byte("<invalid>")
openBracketBytes = []byte("[")
closeBracketBytes = []byte("]")
percentBytes = []byte("%")
precisionBytes = []byte(".")
openAngleBytes = []byte("<")
closeAngleBytes = []byte(">")
openMapBytes = []byte("map[")
closeMapBytes = []byte("]")
lenEqualsBytes = []byte("len=")
capEqualsBytes = []byte("cap=")
)
// hexDigits is used to map a decimal value to a hex digit.
var hexDigits = "0123456789abcdef"
// catchPanic handles any panics that might occur during the handleMethods
// calls.
func catchPanic(w io.Writer, v reflect.Value) {
if err := recover(); err != nil {
w.Write(panicBytes)
fmt.Fprintf(w, "%v", err)
w.Write(closeParenBytes)
}
}
// handleMethods attempts to call the Error and String methods on the underlying
// type the passed reflect.Value represents and outputes the result to Writer w.
//
// It handles panics in any called methods by catching and displaying the error
// as the formatted value.
func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) {
// We need an interface to check if the type implements the error or
// Stringer interface. However, the reflect package won't give us an
// interface on certain things like unexported struct fields in order
// to enforce visibility rules. We use unsafe, when it's available,
// to bypass these restrictions since this package does not mutate the
// values.
if !v.CanInterface() {
if UnsafeDisabled {
return false
}
v = unsafeReflectValue(v)
}
// Choose whether or not to do error and Stringer interface lookups against
// the base type or a pointer to the base type depending on settings.
// Technically calling one of these methods with a pointer receiver can
// mutate the value, however, types which choose to satisify an error or
// Stringer interface with a pointer receiver should not be mutating their
// state inside these interface methods.
if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() {
v = unsafeReflectValue(v)
}
if v.CanAddr() {
v = v.Addr()
}
// Is it an error or Stringer?
switch iface := v.Interface().(type) {
case error:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.Error()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.Error()))
return true
case fmt.Stringer:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.String()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.String()))
return true
}
return false
}
// printBool outputs a boolean value as true or false to Writer w.
func printBool(w io.Writer, val bool) {
if val {
w.Write(trueBytes)
} else {
w.Write(falseBytes)
}
}
// printInt outputs a signed integer value to Writer w.
func printInt(w io.Writer, val int64, base int) {
w.Write([]byte(strconv.FormatInt(val, base)))
}
// printUint outputs an unsigned integer value to Writer w.
func printUint(w io.Writer, val uint64, base int) {
w.Write([]byte(strconv.FormatUint(val, base)))
}
// printFloat outputs a floating point value using the specified precision,
// which is expected to be 32 or 64bit, to Writer w.
func printFloat(w io.Writer, val float64, precision int) {
w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision)))
}
// printComplex outputs a complex value using the specified float precision
// for the real and imaginary parts to Writer w.
func printComplex(w io.Writer, c complex128, floatPrecision int) {
r := real(c)
w.Write(openParenBytes)
w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision)))
i := imag(c)
if i >= 0 {
w.Write(plusBytes)
}
w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision)))
w.Write(iBytes)
w.Write(closeParenBytes)
}
// printHexPtr outputs a uintptr formatted as hexadecimal with a leading '0x'
// prefix to Writer w.
func printHexPtr(w io.Writer, p uintptr) {
// Null pointer.
num := uint64(p)
if num == 0 {
w.Write(nilAngleBytes)
return
}
// Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix
buf := make([]byte, 18)
// It's simpler to construct the hex string right to left.
base := uint64(16)
i := len(buf) - 1
for num >= base {
buf[i] = hexDigits[num%base]
num /= base
i--
}
buf[i] = hexDigits[num]
// Add '0x' prefix.
i--
buf[i] = 'x'
i--
buf[i] = '0'
// Strip unused leading bytes.
buf = buf[i:]
w.Write(buf)
}
// valuesSorter implements sort.Interface to allow a slice of reflect.Value
// elements to be sorted.
type valuesSorter struct {
values []reflect.Value
strings []string // either nil or same len and values
cs *ConfigState
}
// newValuesSorter initializes a valuesSorter instance, which holds a set of
// surrogate keys on which the data should be sorted. It uses flags in
// ConfigState to decide if and how to populate those surrogate keys.
func newValuesSorter(values []reflect.Value, cs *ConfigState) sort.Interface {
vs := &valuesSorter{values: values, cs: cs}
if canSortSimply(vs.values[0].Kind()) {
return vs
}
if !cs.DisableMethods {
vs.strings = make([]string, len(values))
for i := range vs.values {
b := bytes.Buffer{}
if !handleMethods(cs, &b, vs.values[i]) {
vs.strings = nil
break
}
vs.strings[i] = b.String()
}
}
if vs.strings == nil && cs.SpewKeys {
vs.strings = make([]string, len(values))
for i := range vs.values {
vs.strings[i] = Sprintf("%#v", vs.values[i].Interface())
}
}
return vs
}
// canSortSimply tests whether a reflect.Kind is a primitive that can be sorted
// directly, or whether it should be considered for sorting by surrogate keys
// (if the ConfigState allows it).
func canSortSimply(kind reflect.Kind) bool {
// This switch parallels valueSortLess, except for the default case.
switch kind {
case reflect.Bool:
return true
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return true
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return true
case reflect.Float32, reflect.Float64:
return true
case reflect.String:
return true
case reflect.Uintptr:
return true
case reflect.Array:
return true
}
return false
}
// Len returns the number of values in the slice. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Len() int {
return len(s.values)
}
// Swap swaps the values at the passed indices. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Swap(i, j int) {
s.values[i], s.values[j] = s.values[j], s.values[i]
if s.strings != nil {
s.strings[i], s.strings[j] = s.strings[j], s.strings[i]
}
}
// valueSortLess returns whether the first value should sort before the second
// value. It is used by valueSorter.Less as part of the sort.Interface
// implementation.
func valueSortLess(a, b reflect.Value) bool {
switch a.Kind() {
case reflect.Bool:
return !a.Bool() && b.Bool()
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return a.Int() < b.Int()
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return a.Uint() < b.Uint()
case reflect.Float32, reflect.Float64:
return a.Float() < b.Float()
case reflect.String:
return a.String() < b.String()
case reflect.Uintptr:
return a.Uint() < b.Uint()
case reflect.Array:
// Compare the contents of both arrays.
l := a.Len()
for i := 0; i < l; i++ {
av := a.Index(i)
bv := b.Index(i)
if av.Interface() == bv.Interface() {
continue
}
return valueSortLess(av, bv)
}
}
return a.String() < b.String()
}
// Less returns whether the value at index i should sort before the
// value at index j. It is part of the sort.Interface implementation.
func (s *valuesSorter) Less(i, j int) bool {
if s.strings == nil {
return valueSortLess(s.values[i], s.values[j])
}
return s.strings[i] < s.strings[j]
}
// sortValues is a sort function that handles both native types and any type that
// can be converted to error or Stringer. Other inputs are sorted according to
// their Value.String() value to ensure display stability.
func sortValues(values []reflect.Value, cs *ConfigState) {
if len(values) == 0 {
return
}
sort.Sort(newValuesSorter(values, cs))
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"os"
)
// ConfigState houses the configuration options used by spew to format and
// display values. There is a global instance, Config, that is used to control
// all top-level Formatter and Dump functionality. Each ConfigState instance
// provides methods equivalent to the top-level functions.
//
// The zero value for ConfigState provides no indentation. You would typically
// want to set it to a space or a tab.
//
// Alternatively, you can use NewDefaultConfig to get a ConfigState instance
// with default settings. See the documentation of NewDefaultConfig for default
// values.
type ConfigState struct {
// Indent specifies the string to use for each indentation level. The
// global config instance that all top-level functions use set this to a
// single space by default. If you would like more indentation, you might
// set this to a tab with "\t" or perhaps two spaces with " ".
Indent string
// MaxDepth controls the maximum number of levels to descend into nested
// data structures. The default, 0, means there is no limit.
//
// NOTE: Circular data structures are properly detected, so it is not
// necessary to set this value unless you specifically want to limit deeply
// nested data structures.
MaxDepth int
// DisableMethods specifies whether or not error and Stringer interfaces are
// invoked for types that implement them.
DisableMethods bool
// DisablePointerMethods specifies whether or not to check for and invoke
// error and Stringer interfaces on types which only accept a pointer
// receiver when the current type is not a pointer.
//
// NOTE: This might be an unsafe action since calling one of these methods
// with a pointer receiver could technically mutate the value, however,
// in practice, types which choose to satisify an error or Stringer
// interface with a pointer receiver should not be mutating their state
// inside these interface methods. As a result, this option relies on
// access to the unsafe package, so it will not have any effect when
// running in environments without access to the unsafe package such as
// Google App Engine or with the "safe" build tag specified.
DisablePointerMethods bool
// DisablePointerAddresses specifies whether to disable the printing of
// pointer addresses. This is useful when diffing data structures in tests.
DisablePointerAddresses bool
// DisableCapacities specifies whether to disable the printing of capacities
// for arrays, slices, maps and channels. This is useful when diffing
// data structures in tests.
DisableCapacities bool
// ContinueOnMethod specifies whether or not recursion should continue once
// a custom error or Stringer interface is invoked. The default, false,
// means it will print the results of invoking the custom error or Stringer
// interface and return immediately instead of continuing to recurse into
// the internals of the data type.
//
// NOTE: This flag does not have any effect if method invocation is disabled
// via the DisableMethods or DisablePointerMethods options.
ContinueOnMethod bool
// SortKeys specifies map keys should be sorted before being printed. Use
// this to have a more deterministic, diffable output. Note that only
// native types (bool, int, uint, floats, uintptr and string) and types
// that support the error or Stringer interfaces (if methods are
// enabled) are supported, with other types sorted according to the
// reflect.Value.String() output which guarantees display stability.
SortKeys bool
// SpewKeys specifies that, as a last resort attempt, map keys should
// be spewed to strings and sorted by those strings. This is only
// considered if SortKeys is true.
SpewKeys bool
}
// Config is the active configuration of the top-level functions.
// The configuration can be changed by modifying the contents of spew.Config.
var Config = ConfigState{Indent: " "}
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the formatted string as a value that satisfies error. See NewFormatter
// for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, c.convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, c.convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, c.convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a Formatter interface returned by c.NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, c.convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Print(a ...interface{}) (n int, err error) {
return fmt.Print(c.convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, c.convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Println(a ...interface{}) (n int, err error) {
return fmt.Println(c.convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprint(a ...interface{}) string {
return fmt.Sprint(c.convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, c.convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a Formatter interface returned by c.NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintln(a ...interface{}) string {
return fmt.Sprintln(c.convertArgs(a)...)
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), and %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
c.Printf, c.Println, or c.Printf.
*/
func (c *ConfigState) NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(c, v)
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func (c *ConfigState) Fdump(w io.Writer, a ...interface{}) {
fdump(c, w, a...)
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by modifying the public members
of c. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func (c *ConfigState) Dump(a ...interface{}) {
fdump(c, os.Stdout, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func (c *ConfigState) Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(c, &buf, a...)
return buf.String()
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a spew Formatter interface using
// the ConfigState associated with s.
func (c *ConfigState) convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = newFormatter(c, arg)
}
return formatters
}
// NewDefaultConfig returns a ConfigState with the following default settings.
//
// Indent: " "
// MaxDepth: 0
// DisableMethods: false
// DisablePointerMethods: false
// ContinueOnMethod: false
// SortKeys: false
func NewDefaultConfig() *ConfigState {
return &ConfigState{Indent: " "}
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
Package spew implements a deep pretty printer for Go data structures to aid in
debugging.
A quick overview of the additional features spew provides over the built-in
printing facilities for Go data types are as follows:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output (only when using
Dump style)
There are two different approaches spew allows for dumping Go data structures:
* Dump style which prints with newlines, customizable indentation,
and additional debug information such as types and all pointer addresses
used to indirect to the final value
* A custom Formatter interface that integrates cleanly with the standard fmt
package and replaces %v, %+v, %#v, and %#+v to provide inline printing
similar to the default %v while providing the additional functionality
outlined above and passing unsupported format verbs such as %x and %q
along to fmt
Quick Start
This section demonstrates how to quickly get started with spew. See the
sections below for further details on formatting and configuration options.
To dump a variable with full newlines, indentation, type, and pointer
information use Dump, Fdump, or Sdump:
spew.Dump(myVar1, myVar2, ...)
spew.Fdump(someWriter, myVar1, myVar2, ...)
str := spew.Sdump(myVar1, myVar2, ...)
Alternatively, if you would prefer to use format strings with a compacted inline
printing style, use the convenience wrappers Printf, Fprintf, etc with
%v (most compact), %+v (adds pointer addresses), %#v (adds types), or
%#+v (adds types and pointer addresses):
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
Configuration Options
Configuration of spew is handled by fields in the ConfigState type. For
convenience, all of the top-level functions use a global state available
via the spew.Config global.
It is also possible to create a ConfigState instance that provides methods
equivalent to the top-level functions. This allows concurrent configuration
options. See the ConfigState documentation for more details.
The following configuration options are available:
* Indent
String to use for each indentation level for Dump functions.
It is a single space by default. A popular alternative is "\t".
* MaxDepth
Maximum number of levels to descend into nested data structures.
There is no limit by default.
* DisableMethods
Disables invocation of error and Stringer interface methods.
Method invocation is enabled by default.
* DisablePointerMethods
Disables invocation of error and Stringer interface methods on types
which only accept pointer receivers from non-pointer variables.
Pointer method invocation is enabled by default.
* DisablePointerAddresses
DisablePointerAddresses specifies whether to disable the printing of
pointer addresses. This is useful when diffing data structures in tests.
* DisableCapacities
DisableCapacities specifies whether to disable the printing of
capacities for arrays, slices, maps and channels. This is useful when
diffing data structures in tests.
* ContinueOnMethod
Enables recursion into types after invoking error and Stringer interface
methods. Recursion after method invocation is disabled by default.
* SortKeys
Specifies map keys should be sorted before being printed. Use
this to have a more deterministic, diffable output. Note that
only native types (bool, int, uint, floats, uintptr and string)
and types which implement error or Stringer interfaces are
supported with other types sorted according to the
reflect.Value.String() output which guarantees display
stability. Natural map order is used by default.
* SpewKeys
Specifies that, as a last resort attempt, map keys should be
spewed to strings and sorted by those strings. This is only
considered if SortKeys is true.
Dump Usage
Simply call spew.Dump with a list of variables you want to dump:
spew.Dump(myVar1, myVar2, ...)
You may also call spew.Fdump if you would prefer to output to an arbitrary
io.Writer. For example, to dump to standard error:
spew.Fdump(os.Stderr, myVar1, myVar2, ...)
A third option is to call spew.Sdump to get the formatted output as a string:
str := spew.Sdump(myVar1, myVar2, ...)
Sample Dump Output
See the Dump example for details on the setup of the types and variables being
shown here.
(main.Foo) {
unexportedField: (*main.Bar)(0xf84002e210)({
flag: (main.Flag) flagTwo,
data: (uintptr) <nil>
}),
ExportedField: (map[interface {}]interface {}) (len=1) {
(string) (len=3) "one": (bool) true
}
}
Byte (and uint8) arrays and slices are displayed uniquely like the hexdump -C
command as shown.
([]uint8) (len=32 cap=32) {
00000000 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 |............... |
00000010 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 |!"#$%&'()*+,-./0|
00000020 31 32 |12|
}
Custom Formatter
Spew provides a custom formatter that implements the fmt.Formatter interface
so that it integrates cleanly with standard fmt package printing functions. The
formatter is useful for inline printing of smaller data types similar to the
standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Custom Formatter Usage
The simplest way to make use of the spew custom formatter is to call one of the
convenience functions such as spew.Printf, spew.Println, or spew.Printf. The
functions have syntax you are most likely already familiar with:
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Println(myVar, myVar2)
spew.Fprintf(os.Stderr, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(os.Stderr, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
See the Index for the full list convenience functions.
Sample Formatter Output
Double pointer to a uint8:
%v: <**>5
%+v: <**>(0xf8400420d0->0xf8400420c8)5
%#v: (**uint8)5
%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
Pointer to circular struct with a uint8 field and a pointer to itself:
%v: <*>{1 <*><shown>}
%+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
%#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
See the Printf example for details on the setup of variables being shown
here.
Errors
Since it is possible for custom Stringer/error interfaces to panic, spew
detects them and handles them internally by printing the panic information
inline with the output. Since spew is intended to provide deep pretty printing
capabilities on structures, it intentionally does not return any errors.
*/
package spew

509
vendor/github.com/davecgh/go-spew/spew/dump.go generated vendored
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@ -1,509 +0,0 @@
/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"encoding/hex"
"fmt"
"io"
"os"
"reflect"
"regexp"
"strconv"
"strings"
)
var (
// uint8Type is a reflect.Type representing a uint8. It is used to
// convert cgo types to uint8 slices for hexdumping.
uint8Type = reflect.TypeOf(uint8(0))
// cCharRE is a regular expression that matches a cgo char.
// It is used to detect character arrays to hexdump them.
cCharRE = regexp.MustCompile(`^.*\._Ctype_char$`)
// cUnsignedCharRE is a regular expression that matches a cgo unsigned
// char. It is used to detect unsigned character arrays to hexdump
// them.
cUnsignedCharRE = regexp.MustCompile(`^.*\._Ctype_unsignedchar$`)
// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
// It is used to detect uint8_t arrays to hexdump them.
cUint8tCharRE = regexp.MustCompile(`^.*\._Ctype_uint8_t$`)
)
// dumpState contains information about the state of a dump operation.
type dumpState struct {
w io.Writer
depth int
pointers map[uintptr]int
ignoreNextType bool
ignoreNextIndent bool
cs *ConfigState
}
// indent performs indentation according to the depth level and cs.Indent
// option.
func (d *dumpState) indent() {
if d.ignoreNextIndent {
d.ignoreNextIndent = false
return
}
d.w.Write(bytes.Repeat([]byte(d.cs.Indent), d.depth))
}
// unpackValue returns values inside of non-nil interfaces when possible.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (d *dumpState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface && !v.IsNil() {
v = v.Elem()
}
return v
}
// dumpPtr handles formatting of pointers by indirecting them as necessary.
func (d *dumpState) dumpPtr(v reflect.Value) {
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range d.pointers {
if depth >= d.depth {
delete(d.pointers, k)
}
}
// Keep list of all dereferenced pointers to show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by dereferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := d.pointers[addr]; ok && pd < d.depth {
cycleFound = true
indirects--
break
}
d.pointers[addr] = d.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type information.
d.w.Write(openParenBytes)
d.w.Write(bytes.Repeat(asteriskBytes, indirects))
d.w.Write([]byte(ve.Type().String()))
d.w.Write(closeParenBytes)
// Display pointer information.
if !d.cs.DisablePointerAddresses && len(pointerChain) > 0 {
d.w.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
d.w.Write(pointerChainBytes)
}
printHexPtr(d.w, addr)
}
d.w.Write(closeParenBytes)
}
// Display dereferenced value.
d.w.Write(openParenBytes)
switch {
case nilFound:
d.w.Write(nilAngleBytes)
case cycleFound:
d.w.Write(circularBytes)
default:
d.ignoreNextType = true
d.dump(ve)
}
d.w.Write(closeParenBytes)
}
// dumpSlice handles formatting of arrays and slices. Byte (uint8 under
// reflection) arrays and slices are dumped in hexdump -C fashion.
func (d *dumpState) dumpSlice(v reflect.Value) {
// Determine whether this type should be hex dumped or not. Also,
// for types which should be hexdumped, try to use the underlying data
// first, then fall back to trying to convert them to a uint8 slice.
var buf []uint8
doConvert := false
doHexDump := false
numEntries := v.Len()
if numEntries > 0 {
vt := v.Index(0).Type()
vts := vt.String()
switch {
// C types that need to be converted.
case cCharRE.MatchString(vts):
fallthrough
case cUnsignedCharRE.MatchString(vts):
fallthrough
case cUint8tCharRE.MatchString(vts):
doConvert = true
// Try to use existing uint8 slices and fall back to converting
// and copying if that fails.
case vt.Kind() == reflect.Uint8:
// We need an addressable interface to convert the type
// to a byte slice. However, the reflect package won't
// give us an interface on certain things like
// unexported struct fields in order to enforce
// visibility rules. We use unsafe, when available, to
// bypass these restrictions since this package does not
// mutate the values.
vs := v
if !vs.CanInterface() || !vs.CanAddr() {
vs = unsafeReflectValue(vs)
}
if !UnsafeDisabled {
vs = vs.Slice(0, numEntries)
// Use the existing uint8 slice if it can be
// type asserted.
iface := vs.Interface()
if slice, ok := iface.([]uint8); ok {
buf = slice
doHexDump = true
break
}
}
// The underlying data needs to be converted if it can't
// be type asserted to a uint8 slice.
doConvert = true
}
// Copy and convert the underlying type if needed.
if doConvert && vt.ConvertibleTo(uint8Type) {
// Convert and copy each element into a uint8 byte
// slice.
buf = make([]uint8, numEntries)
for i := 0; i < numEntries; i++ {
vv := v.Index(i)
buf[i] = uint8(vv.Convert(uint8Type).Uint())
}
doHexDump = true
}
}
// Hexdump the entire slice as needed.
if doHexDump {
indent := strings.Repeat(d.cs.Indent, d.depth)
str := indent + hex.Dump(buf)
str = strings.Replace(str, "\n", "\n"+indent, -1)
str = strings.TrimRight(str, d.cs.Indent)
d.w.Write([]byte(str))
return
}
// Recursively call dump for each item.
for i := 0; i < numEntries; i++ {
d.dump(d.unpackValue(v.Index(i)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
// dump is the main workhorse for dumping a value. It uses the passed reflect
// value to figure out what kind of object we are dealing with and formats it
// appropriately. It is a recursive function, however circular data structures
// are detected and handled properly.
func (d *dumpState) dump(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
d.w.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
d.indent()
d.dumpPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !d.ignoreNextType {
d.indent()
d.w.Write(openParenBytes)
d.w.Write([]byte(v.Type().String()))
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
d.ignoreNextType = false
// Display length and capacity if the built-in len and cap functions
// work with the value's kind and the len/cap itself is non-zero.
valueLen, valueCap := 0, 0
switch v.Kind() {
case reflect.Array, reflect.Slice, reflect.Chan:
valueLen, valueCap = v.Len(), v.Cap()
case reflect.Map, reflect.String:
valueLen = v.Len()
}
if valueLen != 0 || !d.cs.DisableCapacities && valueCap != 0 {
d.w.Write(openParenBytes)
if valueLen != 0 {
d.w.Write(lenEqualsBytes)
printInt(d.w, int64(valueLen), 10)
}
if !d.cs.DisableCapacities && valueCap != 0 {
if valueLen != 0 {
d.w.Write(spaceBytes)
}
d.w.Write(capEqualsBytes)
printInt(d.w, int64(valueCap), 10)
}
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
// Call Stringer/error interfaces if they exist and the handle methods flag
// is enabled
if !d.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(d.cs, d.w, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(d.w, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(d.w, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(d.w, v.Uint(), 10)
case reflect.Float32:
printFloat(d.w, v.Float(), 32)
case reflect.Float64:
printFloat(d.w, v.Float(), 64)
case reflect.Complex64:
printComplex(d.w, v.Complex(), 32)
case reflect.Complex128:
printComplex(d.w, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
d.dumpSlice(v)
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.String:
d.w.Write([]byte(strconv.Quote(v.String())))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
d.w.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
numEntries := v.Len()
keys := v.MapKeys()
if d.cs.SortKeys {
sortValues(keys, d.cs)
}
for i, key := range keys {
d.dump(d.unpackValue(key))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.MapIndex(key)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Struct:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
vt := v.Type()
numFields := v.NumField()
for i := 0; i < numFields; i++ {
d.indent()
vtf := vt.Field(i)
d.w.Write([]byte(vtf.Name))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.Field(i)))
if i < (numFields - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(d.w, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(d.w, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it in case any new
// types are added.
default:
if v.CanInterface() {
fmt.Fprintf(d.w, "%v", v.Interface())
} else {
fmt.Fprintf(d.w, "%v", v.String())
}
}
}
// fdump is a helper function to consolidate the logic from the various public
// methods which take varying writers and config states.
func fdump(cs *ConfigState, w io.Writer, a ...interface{}) {
for _, arg := range a {
if arg == nil {
w.Write(interfaceBytes)
w.Write(spaceBytes)
w.Write(nilAngleBytes)
w.Write(newlineBytes)
continue
}
d := dumpState{w: w, cs: cs}
d.pointers = make(map[uintptr]int)
d.dump(reflect.ValueOf(arg))
d.w.Write(newlineBytes)
}
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func Fdump(w io.Writer, a ...interface{}) {
fdump(&Config, w, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(&Config, &buf, a...)
return buf.String()
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by an exported package global,
spew.Config. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func Dump(a ...interface{}) {
fdump(&Config, os.Stdout, a...)
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"reflect"
"strconv"
"strings"
)
// supportedFlags is a list of all the character flags supported by fmt package.
const supportedFlags = "0-+# "
// formatState implements the fmt.Formatter interface and contains information
// about the state of a formatting operation. The NewFormatter function can
// be used to get a new Formatter which can be used directly as arguments
// in standard fmt package printing calls.
type formatState struct {
value interface{}
fs fmt.State
depth int
pointers map[uintptr]int
ignoreNextType bool
cs *ConfigState
}
// buildDefaultFormat recreates the original format string without precision
// and width information to pass in to fmt.Sprintf in the case of an
// unrecognized type. Unless new types are added to the language, this
// function won't ever be called.
func (f *formatState) buildDefaultFormat() (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
buf.WriteRune('v')
format = buf.String()
return format
}
// constructOrigFormat recreates the original format string including precision
// and width information to pass along to the standard fmt package. This allows
// automatic deferral of all format strings this package doesn't support.
func (f *formatState) constructOrigFormat(verb rune) (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
if width, ok := f.fs.Width(); ok {
buf.WriteString(strconv.Itoa(width))
}
if precision, ok := f.fs.Precision(); ok {
buf.Write(precisionBytes)
buf.WriteString(strconv.Itoa(precision))
}
buf.WriteRune(verb)
format = buf.String()
return format
}
// unpackValue returns values inside of non-nil interfaces when possible and
// ensures that types for values which have been unpacked from an interface
// are displayed when the show types flag is also set.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (f *formatState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface {
f.ignoreNextType = false
if !v.IsNil() {
v = v.Elem()
}
}
return v
}
// formatPtr handles formatting of pointers by indirecting them as necessary.
func (f *formatState) formatPtr(v reflect.Value) {
// Display nil if top level pointer is nil.
showTypes := f.fs.Flag('#')
if v.IsNil() && (!showTypes || f.ignoreNextType) {
f.fs.Write(nilAngleBytes)
return
}
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range f.pointers {
if depth >= f.depth {
delete(f.pointers, k)
}
}
// Keep list of all dereferenced pointers to possibly show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by derferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := f.pointers[addr]; ok && pd < f.depth {
cycleFound = true
indirects--
break
}
f.pointers[addr] = f.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type or indirection level depending on flags.
if showTypes && !f.ignoreNextType {
f.fs.Write(openParenBytes)
f.fs.Write(bytes.Repeat(asteriskBytes, indirects))
f.fs.Write([]byte(ve.Type().String()))
f.fs.Write(closeParenBytes)
} else {
if nilFound || cycleFound {
indirects += strings.Count(ve.Type().String(), "*")
}
f.fs.Write(openAngleBytes)
f.fs.Write([]byte(strings.Repeat("*", indirects)))
f.fs.Write(closeAngleBytes)
}
// Display pointer information depending on flags.
if f.fs.Flag('+') && (len(pointerChain) > 0) {
f.fs.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
f.fs.Write(pointerChainBytes)
}
printHexPtr(f.fs, addr)
}
f.fs.Write(closeParenBytes)
}
// Display dereferenced value.
switch {
case nilFound:
f.fs.Write(nilAngleBytes)
case cycleFound:
f.fs.Write(circularShortBytes)
default:
f.ignoreNextType = true
f.format(ve)
}
}
// format is the main workhorse for providing the Formatter interface. It
// uses the passed reflect value to figure out what kind of object we are
// dealing with and formats it appropriately. It is a recursive function,
// however circular data structures are detected and handled properly.
func (f *formatState) format(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
f.fs.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
f.formatPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !f.ignoreNextType && f.fs.Flag('#') {
f.fs.Write(openParenBytes)
f.fs.Write([]byte(v.Type().String()))
f.fs.Write(closeParenBytes)
}
f.ignoreNextType = false
// Call Stringer/error interfaces if they exist and the handle methods
// flag is enabled.
if !f.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(f.cs, f.fs, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(f.fs, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(f.fs, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(f.fs, v.Uint(), 10)
case reflect.Float32:
printFloat(f.fs, v.Float(), 32)
case reflect.Float64:
printFloat(f.fs, v.Float(), 64)
case reflect.Complex64:
printComplex(f.fs, v.Complex(), 32)
case reflect.Complex128:
printComplex(f.fs, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
f.fs.Write(openBracketBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
numEntries := v.Len()
for i := 0; i < numEntries; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(v.Index(i)))
}
}
f.depth--
f.fs.Write(closeBracketBytes)
case reflect.String:
f.fs.Write([]byte(v.String()))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
f.fs.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
f.fs.Write(openMapBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
keys := v.MapKeys()
if f.cs.SortKeys {
sortValues(keys, f.cs)
}
for i, key := range keys {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(key))
f.fs.Write(colonBytes)
f.ignoreNextType = true
f.format(f.unpackValue(v.MapIndex(key)))
}
}
f.depth--
f.fs.Write(closeMapBytes)
case reflect.Struct:
numFields := v.NumField()
f.fs.Write(openBraceBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
vt := v.Type()
for i := 0; i < numFields; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
vtf := vt.Field(i)
if f.fs.Flag('+') || f.fs.Flag('#') {
f.fs.Write([]byte(vtf.Name))
f.fs.Write(colonBytes)
}
f.format(f.unpackValue(v.Field(i)))
}
}
f.depth--
f.fs.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(f.fs, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(f.fs, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it if any get added.
default:
format := f.buildDefaultFormat()
if v.CanInterface() {
fmt.Fprintf(f.fs, format, v.Interface())
} else {
fmt.Fprintf(f.fs, format, v.String())
}
}
}
// Format satisfies the fmt.Formatter interface. See NewFormatter for usage
// details.
func (f *formatState) Format(fs fmt.State, verb rune) {
f.fs = fs
// Use standard formatting for verbs that are not v.
if verb != 'v' {
format := f.constructOrigFormat(verb)
fmt.Fprintf(fs, format, f.value)
return
}
if f.value == nil {
if fs.Flag('#') {
fs.Write(interfaceBytes)
}
fs.Write(nilAngleBytes)
return
}
f.format(reflect.ValueOf(f.value))
}
// newFormatter is a helper function to consolidate the logic from the various
// public methods which take varying config states.
func newFormatter(cs *ConfigState, v interface{}) fmt.Formatter {
fs := &formatState{value: v, cs: cs}
fs.pointers = make(map[uintptr]int)
return fs
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
Printf, Println, or Fprintf.
*/
func NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(&Config, v)
}

148
vendor/github.com/davecgh/go-spew/spew/spew.go generated vendored
View File

@ -1,148 +0,0 @@
/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"fmt"
"io"
)
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the formatted string as a value that satisfies error. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a default Formatter interface returned by NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(spew.NewFormatter(a), spew.NewFormatter(b))
func Print(a ...interface{}) (n int, err error) {
return fmt.Print(convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(spew.NewFormatter(a), spew.NewFormatter(b))
func Println(a ...interface{}) (n int, err error) {
return fmt.Println(convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprint(a ...interface{}) string {
return fmt.Sprint(convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintln(a ...interface{}) string {
return fmt.Sprintln(convertArgs(a)...)
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a default spew Formatter interface.
func convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = NewFormatter(arg)
}
return formatters
}

1
vendor/github.com/go-gl/glfw/v3.3/glfw/GLFW_C_REVISION.txt generated vendored
View File

@ -1 +0,0 @@
b3e0aae393ef6c5cda7dcad0cba06bef23a1dda9

27
vendor/github.com/go-gl/glfw/v3.3/glfw/LICENSE generated vendored
View File

@ -1,27 +0,0 @@
Copyright (c) 2012 The glfw3-go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

53
vendor/github.com/go-gl/glfw/v3.3/glfw/build.go generated vendored
View File

@ -1,53 +0,0 @@
package glfw
/*
// Windows Build Tags
// ----------------
// GLFW Options:
#cgo windows CFLAGS: -D_GLFW_WIN32 -Iglfw/deps/mingw
// Linker Options:
#cgo windows LDFLAGS: -lgdi32
#cgo !gles2,windows LDFLAGS: -lopengl32
#cgo gles2,windows LDFLAGS: -lGLESv2
// Darwin Build Tags
// ----------------
// GLFW Options:
#cgo darwin CFLAGS: -D_GLFW_COCOA -Wno-deprecated-declarations
// Linker Options:
#cgo darwin LDFLAGS: -framework Cocoa -framework IOKit -framework CoreVideo
#cgo !gles2,darwin LDFLAGS: -framework OpenGL
#cgo gles2,darwin LDFLAGS: -lGLESv2
// Linux Build Tags
// ----------------
// GLFW Options:
#cgo linux,!wayland CFLAGS: -D_GLFW_X11 -D_GNU_SOURCE
#cgo linux,wayland CFLAGS: -D_GLFW_WAYLAND -D_GNU_SOURCE
// Linker Options:
#cgo linux,!gles1,!gles2,!gles3,!vulkan LDFLAGS: -lGL
#cgo linux,gles1 LDFLAGS: -lGLESv1
#cgo linux,gles2 LDFLAGS: -lGLESv2
#cgo linux,gles3 LDFLAGS: -lGLESv3
#cgo linux,vulkan LDFLAGS: -lvulkan
#cgo linux,!wayland LDFLAGS: -lX11 -lXrandr -lXxf86vm -lXi -lXcursor -lm -lXinerama -ldl -lrt
#cgo linux,wayland LDFLAGS: -lwayland-client -lwayland-cursor -lwayland-egl -lxkbcommon -lm -ldl -lrt
// FreeBSD Build Tags
// ----------------
// GLFW Options:
#cgo freebsd pkg-config: glfw3
#cgo freebsd CFLAGS: -D_GLFW_HAS_DLOPEN
#cgo freebsd,!wayland CFLAGS: -D_GLFW_X11 -D_GLFW_HAS_GLXGETPROCADDRESSARB
#cgo freebsd,wayland CFLAGS: -D_GLFW_WAYLAND
// Linker Options:
#cgo freebsd,!wayland LDFLAGS: -lm -lGL -lX11 -lXrandr -lXxf86vm -lXi -lXcursor -lXinerama
#cgo freebsd,wayland LDFLAGS: -lm -lGL -lwayland-client -lwayland-cursor -lwayland-egl -lxkbcommon
*/
import "C"

18
vendor/github.com/go-gl/glfw/v3.3/glfw/build_cgo_hack.go generated vendored
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@ -1,18 +0,0 @@
// +build required
package glfw
// This file exists purely to prevent the golang toolchain from stripping
// away the c source directories and files when `go mod vendor` is used
// to populate a `vendor/` directory of a project depending on `go-gl/glfw`.
//
// How it works:
// - every directory which only includes c source files receives a dummy.go file.
// - every directory we want to preserve is included here as a _ import.
// - this file is given a build to exclude it from the regular build.
import (
// Prevent go tooling from stripping out the c source files.
_ "github.com/go-gl/glfw/v3.3/glfw/glfw/deps"
_ "github.com/go-gl/glfw/v3.3/glfw/glfw/include/GLFW"
_ "github.com/go-gl/glfw/v3.3/glfw/glfw/src"
)

12
vendor/github.com/go-gl/glfw/v3.3/glfw/c_glfw.go generated vendored
View File

@ -1,12 +0,0 @@
package glfw
/*
#include "glfw/src/context.c"
#include "glfw/src/init.c"
#include "glfw/src/input.c"
#include "glfw/src/monitor.c"
#include "glfw/src/vulkan.c"
#include "glfw/src/window.c"
#include "glfw/src/osmesa_context.c"
*/
import "C"

14
vendor/github.com/go-gl/glfw/v3.3/glfw/c_glfw_darwin.go generated vendored
View File

@ -1,14 +0,0 @@
package glfw
/*
#cgo CFLAGS: -x objective-c
#include "glfw/src/cocoa_init.m"
#include "glfw/src/cocoa_joystick.m"
#include "glfw/src/cocoa_monitor.m"
#include "glfw/src/cocoa_window.m"
#include "glfw/src/cocoa_time.c"
#include "glfw/src/posix_thread.c"
#include "glfw/src/nsgl_context.m"
#include "glfw/src/egl_context.c"
*/
import "C"

29
vendor/github.com/go-gl/glfw/v3.3/glfw/c_glfw_freebsd.go generated vendored
View File

@ -1,29 +0,0 @@
// +build freebsd
package glfw
/*
#ifdef _GLFW_WAYLAND
#include "glfw/src/wl_init.c"
#include "glfw/src/wl_monitor.c"
#include "glfw/src/wl_window.c"
#include "glfw/src/wayland-idle-inhibit-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-pointer-constraints-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-relative-pointer-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-viewporter-client-protocol.c"
#include "glfw/src/wayland-xdg-decoration-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-xdg-shell-client-protocol.c"
#endif
#ifdef _GLFW_X11
#include "glfw/src/x11_init.c"
#include "glfw/src/x11_monitor.c"
#include "glfw/src/x11_window.c"
#include "glfw/src/glx_context.c"
#endif
#include "glfw/src/null_joystick.c"
#include "glfw/src/posix_time.c"
#include "glfw/src/posix_thread.c"
#include "glfw/src/xkb_unicode.c"
#include "glfw/src/egl_context.c"
*/
import "C"

29
vendor/github.com/go-gl/glfw/v3.3/glfw/c_glfw_lin.go generated vendored
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@ -1,29 +0,0 @@
// +build linux
package glfw
/*
#ifdef _GLFW_WAYLAND
#include "glfw/src/wl_init.c"
#include "glfw/src/wl_monitor.c"
#include "glfw/src/wl_window.c"
#include "glfw/src/wayland-idle-inhibit-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-pointer-constraints-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-relative-pointer-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-viewporter-client-protocol.c"
#include "glfw/src/wayland-xdg-decoration-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-xdg-shell-client-protocol.c"
#endif
#ifdef _GLFW_X11
#include "glfw/src/x11_init.c"
#include "glfw/src/x11_monitor.c"
#include "glfw/src/x11_window.c"
#include "glfw/src/glx_context.c"
#endif
#include "glfw/src/linux_joystick.c"
#include "glfw/src/posix_time.c"
#include "glfw/src/posix_thread.c"
#include "glfw/src/xkb_unicode.c"
#include "glfw/src/egl_context.c"
*/
import "C"

13
vendor/github.com/go-gl/glfw/v3.3/glfw/c_glfw_windows.go generated vendored
View File

@ -1,13 +0,0 @@
package glfw
/*
#include "glfw/src/win32_init.c"
#include "glfw/src/win32_joystick.c"
#include "glfw/src/win32_monitor.c"
#include "glfw/src/win32_time.c"
#include "glfw/src/win32_thread.c"
#include "glfw/src/win32_window.c"
#include "glfw/src/wgl_context.c"
#include "glfw/src/egl_context.c"
*/
import "C"

94
vendor/github.com/go-gl/glfw/v3.3/glfw/context.go generated vendored
View File

@ -1,94 +0,0 @@
package glfw
//#include <stdlib.h>
//#define GLFW_INCLUDE_NONE
//#include "glfw/include/GLFW/glfw3.h"
import "C"
import (
"unsafe"
)
// MakeContextCurrent makes the context of the window current.
// Originally GLFW 3 passes a null pointer to detach the context.
// But since we're using receievers, DetachCurrentContext should
// be used instead.
func (w *Window) MakeContextCurrent() {
C.glfwMakeContextCurrent(w.data)
panicError()
}
// DetachCurrentContext detaches the current context.
func DetachCurrentContext() {
C.glfwMakeContextCurrent(nil)
panicError()
}
// GetCurrentContext returns the window whose context is current.
func GetCurrentContext() *Window {
w := C.glfwGetCurrentContext()
panicError()
if w == nil {
return nil
}
return windows.get(w)
}
// SwapBuffers swaps the front and back buffers of the window. If the
// swap interval is greater than zero, the GPU driver waits the specified number
// of screen updates before swapping the buffers.
func (w *Window) SwapBuffers() {
C.glfwSwapBuffers(w.data)
panicError()
}
// SwapInterval sets the swap interval for the current context, i.e. the number
// of screen updates to wait before swapping the buffers of a window and
// returning from SwapBuffers. This is sometimes called
// 'vertical synchronization', 'vertical retrace synchronization' or 'vsync'.
//
// Contexts that support either of the WGL_EXT_swap_control_tear and
// GLX_EXT_swap_control_tear extensions also accept negative swap intervals,
// which allow the driver to swap even if a frame arrives a little bit late.
// You can check for the presence of these extensions using
// ExtensionSupported. For more information about swap tearing,
// see the extension specifications.
//
// Some GPU drivers do not honor the requested swap interval, either because of
// user settings that override the request or due to bugs in the driver.
func SwapInterval(interval int) {
C.glfwSwapInterval(C.int(interval))
panicError()
}
// ExtensionSupported reports whether the specified OpenGL or context creation
// API extension is supported by the current context. For example, on Windows
// both the OpenGL and WGL extension strings are checked.
//
// As this functions searches one or more extension strings on each call, it is
// recommended that you cache its results if it's going to be used frequently.
// The extension strings will not change during the lifetime of a context, so
// there is no danger in doing this.
func ExtensionSupported(extension string) bool {
e := C.CString(extension)
defer C.free(unsafe.Pointer(e))
ret := glfwbool(C.glfwExtensionSupported(e))
panicError()
return ret
}
// GetProcAddress returns the address of the specified OpenGL or OpenGL ES core
// or extension function, if it is supported by the current context.
//
// A context must be current on the calling thread. Calling this function
// without a current context will cause a GLFW_NO_CURRENT_CONTEXT error.
//
// This function is used to provide GL proc resolving capabilities to an
// external C library.
func GetProcAddress(procname string) unsafe.Pointer {
p := C.CString(procname)
defer C.free(unsafe.Pointer(p))
ret := unsafe.Pointer(C.glfwGetProcAddress(p))
panicError()
return ret
}

3
vendor/github.com/go-gl/glfw/v3.3/glfw/error.c generated vendored
View File

@ -1,3 +0,0 @@
#include "_cgo_export.h"
void glfwSetErrorCallbackCB() { glfwSetErrorCallback((GLFWerrorfun)goErrorCB); }

200
vendor/github.com/go-gl/glfw/v3.3/glfw/error.go generated vendored
View File

@ -1,200 +0,0 @@
package glfw
//#define GLFW_INCLUDE_NONE
//#include "glfw/include/GLFW/glfw3.h"
//void glfwSetErrorCallbackCB();
import "C"
import (
"fmt"
"log"
)
// ErrorCode corresponds to an error code.
type ErrorCode int
// Error codes that are translated to panics and the programmer should not
// expect to handle.
const (
notInitialized ErrorCode = C.GLFW_NOT_INITIALIZED // GLFW has not been initialized.
noCurrentContext ErrorCode = C.GLFW_NO_CURRENT_CONTEXT // No context is current.
invalidEnum ErrorCode = C.GLFW_INVALID_ENUM // One of the enum parameters for the function was given an invalid enum.
invalidValue ErrorCode = C.GLFW_INVALID_VALUE // One of the parameters for the function was given an invalid value.
outOfMemory ErrorCode = C.GLFW_OUT_OF_MEMORY // A memory allocation failed.
platformError ErrorCode = C.GLFW_PLATFORM_ERROR // A platform-specific error occurred that does not match any of the more specific categories.
)
const (
// APIUnavailable is the error code used when GLFW could not find support
// for the requested client API on the system.
//
// The installed graphics driver does not support the requested client API,
// or does not support it via the chosen context creation backend. Below
// are a few examples.
//
// Some pre-installed Windows graphics drivers do not support OpenGL. AMD
// only supports OpenGL ES via EGL, while Nvidia and Intel only supports it
// via a WGL or GLX extension. OS X does not provide OpenGL ES at all. The
// Mesa EGL, OpenGL and OpenGL ES libraries do not interface with the
// Nvidia binary driver.
APIUnavailable ErrorCode = C.GLFW_API_UNAVAILABLE
// VersionUnavailable is the error code used when the requested OpenGL or
// OpenGL ES (including any requested profile or context option) is not
// available on this machine.
//
// The machine does not support your requirements. If your application is
// sufficiently flexible, downgrade your requirements and try again.
// Otherwise, inform the user that their machine does not match your
// requirements.
//
// Future invalid OpenGL and OpenGL ES versions, for example OpenGL 4.8 if
// 5.0 comes out before the 4.x series gets that far, also fail with this
// error and not GLFW_INVALID_VALUE, because GLFW cannot know what future
// versions will exist.
VersionUnavailable ErrorCode = C.GLFW_VERSION_UNAVAILABLE
// FormatUnavailable is the error code used for both window creation and
// clipboard querying format errors.
//
// If emitted during window creation, the requested pixel format is not
// supported. This means one or more hard constraints did not match any of
// the available pixel formats. If your application is sufficiently
// flexible, downgrade your requirements and try again. Otherwise, inform
// the user that their machine does not match your requirements.
//
// If emitted when querying the clipboard, the contents of the clipboard
// could not be converted to the requested format. You should ignore the
// error or report it to the user, as appropriate.
FormatUnavailable ErrorCode = C.GLFW_FORMAT_UNAVAILABLE
)
func (e ErrorCode) String() string {
switch e {
case notInitialized:
return "NotInitialized"
case noCurrentContext:
return "NoCurrentContext"
case invalidEnum:
return "InvalidEnum"
case invalidValue:
return "InvalidValue"
case outOfMemory:
return "OutOfMemory"
case platformError:
return "PlatformError"
case APIUnavailable:
return "APIUnavailable"
case VersionUnavailable:
return "VersionUnavailable"
case FormatUnavailable:
return "FormatUnavailable"
default:
return fmt.Sprintf("ErrorCode(%d)", e)
}
}
// Error holds error code and description.
type Error struct {
Code ErrorCode
Desc string
}
// Error prints the error code and description in a readable format.
func (e *Error) Error() string {
return fmt.Sprintf("%s: %s", e.Code.String(), e.Desc)
}
// Note: There are many cryptic caveats to proper error handling here.
// See: https://github.com/go-gl/glfw3/pull/86
// Holds the value of the last error.
var lastError = make(chan *Error, 1)
//export goErrorCB
func goErrorCB(code C.int, desc *C.char) {
flushErrors()
err := &Error{ErrorCode(code), C.GoString(desc)}
select {
case lastError <- err:
default:
fmt.Println("GLFW: An uncaught error has occurred:", err)
fmt.Println("GLFW: Please report this bug in the Go package immediately.")
}
}
// Set the glfw callback internally
func init() {
C.glfwSetErrorCallbackCB()
}
// flushErrors is called by Terminate before it actually calls C.glfwTerminate,
// this ensures that any uncaught errors buffered in lastError are printed
// before the program exits.
func flushErrors() {
err := fetchError()
if err != nil {
fmt.Println("GLFW: An uncaught error has occurred:", err)
fmt.Println("GLFW: Please report this bug in the Go package immediately.")
}
}
// acceptError fetches the next error from the error channel, it accepts only
// errors with one of the given error codes. If any other error is encountered,
// a panic will occur.
//
// Platform errors are always printed, for information why please see:
//
// https://github.com/go-gl/glfw/issues/127
//
func acceptError(codes ...ErrorCode) error {
// Grab the next error, if there is one.
err := fetchError()
if err == nil {
return nil
}
// Only if the error has the specific error code accepted by the caller, do
// we return the error.
for _, code := range codes {
if err.Code == code {
return err
}
}
// The error isn't accepted by the caller. If the error code is not a code
// defined in the GLFW C documentation as a programmer error, then the
// caller should have accepted it. This is effectively a bug in this
// package.
switch err.Code {
case platformError:
log.Println(err)
return nil
case notInitialized, noCurrentContext, invalidEnum, invalidValue, outOfMemory:
panic(err)
default:
fmt.Println("GLFW: An invalid error was not accepted by the caller:", err)
fmt.Println("GLFW: Please report this bug in the Go package immediately.")
panic(err)
}
}
// panicError is a helper used by functions which expect no errors (except
// programmer errors) to occur. It will panic if it finds any such error.
func panicError() {
err := acceptError()
if err != nil {
panic(err)
}
}
// fetchError fetches the next error from the error channel, it does not block
// and returns nil if there is no error present.
func fetchError() *Error {
select {
case err := <-lastError:
return err
default:
return nil
}
}

125
vendor/github.com/go-gl/glfw/v3.3/glfw/glfw.go generated vendored
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@ -1,125 +0,0 @@
package glfw
//#include <stdlib.h>
//#define GLFW_INCLUDE_NONE
//#include "glfw/include/GLFW/glfw3.h"
import "C"
import "unsafe"
// Version constants.
const (
VersionMajor = C.GLFW_VERSION_MAJOR // This is incremented when the API is changed in non-compatible ways.
VersionMinor = C.GLFW_VERSION_MINOR // This is incremented when features are added to the API but it remains backward-compatible.
VersionRevision = C.GLFW_VERSION_REVISION // This is incremented when a bug fix release is made that does not contain any API changes.
)
// Init initializes the GLFW library. Before most GLFW functions can be used,
// GLFW must be initialized, and before a program terminates GLFW should be
// terminated in order to free any resources allocated during or after
// initialization.
//
// If this function fails, it calls Terminate before returning. If it succeeds,
// you should call Terminate before the program exits.
//
// Additional calls to this function after successful initialization but before
// termination will succeed but will do nothing.
//
// This function may take several seconds to complete on some systems, while on
// other systems it may take only a fraction of a second to complete.
//
// On Mac OS X, this function will change the current directory of the
// application to the Contents/Resources subdirectory of the application's
// bundle, if present.
//
// This function may only be called from the main thread.
func Init() error {
C.glfwInit()
// invalidValue can happen when specific joysticks are used. This issue
// will be fixed in GLFW 3.3.5. As a temporary fix, ignore this error.
// See go-gl/glfw#292, go-gl/glfw#324, and glfw/glfw#1763.
err := acceptError(APIUnavailable, invalidValue)
if e, ok := err.(*Error); ok && e.Code == invalidValue {
return nil
}
return err
}
// Terminate destroys all remaining windows, frees any allocated resources and
// sets the library to an uninitialized state. Once this is called, you must
// again call Init successfully before you will be able to use most GLFW
// functions.
//
// If GLFW has been successfully initialized, this function should be called
// before the program exits. If initialization fails, there is no need to call
// this function, as it is called by Init before it returns failure.
//
// This function may only be called from the main thread.
func Terminate() {
flushErrors()
C.glfwTerminate()
}
// InitHint function sets hints for the next initialization of GLFW.
//
// The values you set hints to are never reset by GLFW, but they only take
// effect during initialization. Once GLFW has been initialized, any values you
// set will be ignored until the library is terminated and initialized again.
//
// Some hints are platform specific. These may be set on any platform but they
// will only affect their specific platform. Other platforms will ignore them.
// Setting these hints requires no platform specific headers or functions.
//
// This function must only be called from the main thread.
func InitHint(hint Hint, value int) {
C.glfwInitHint(C.int(hint), C.int(value))
}
// GetVersion retrieves the major, minor and revision numbers of the GLFW
// library. It is intended for when you are using GLFW as a shared library and
// want to ensure that you are using the minimum required version.
//
// This function may be called before Init.
func GetVersion() (major, minor, revision int) {
var (
maj C.int
min C.int
rev C.int
)
C.glfwGetVersion(&maj, &min, &rev)
return int(maj), int(min), int(rev)
}
// GetVersionString returns a static string generated at compile-time according
// to which configuration macros were defined. This is intended for use when
// submitting bug reports, to allow developers to see which code paths are
// enabled in a binary.
//
// This function may be called before Init.
func GetVersionString() string {
return C.GoString(C.glfwGetVersionString())
}
// GetClipboardString returns the contents of the system clipboard, if it
// contains or is convertible to a UTF-8 encoded string.
//
// This function may only be called from the main thread.
func GetClipboardString() string {
cs := C.glfwGetClipboardString(nil)
if cs == nil {
acceptError(FormatUnavailable)
return ""
}
return C.GoString(cs)
}
// SetClipboardString sets the system clipboard to the specified UTF-8 encoded
// string.
//
// This function may only be called from the main thread.
func SetClipboardString(str string) {
cp := C.CString(str)
defer C.free(unsafe.Pointer(cp))
C.glfwSetClipboardString(nil, cp)
panicError()
}

23
vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/LICENSE.md generated vendored
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@ -1,23 +0,0 @@
Copyright (c) 2002-2006 Marcus Geelnard
Copyright (c) 2006-2019 Camilla Löwy
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would
be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not
be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.

11
vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/deps/dummy.go generated vendored
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@ -1,11 +0,0 @@
// +build required
// Package dummy prevents go tooling from stripping the c dependencies.
package dummy
import (
// Prevent go tooling from stripping out the c source files.
_ "github.com/go-gl/glfw/v3.3/glfw/glfw/deps/glad"
_ "github.com/go-gl/glfw/v3.3/glfw/glfw/deps/mingw"
_ "github.com/go-gl/glfw/v3.3/glfw/glfw/deps/vs2008"
)

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