bd47c67 · prybar · git.iko.soy

git.iko.soy/prybar

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Merge pull request #1 from replit/mc-masonstuff

bd47c67Mason Clayton8 years ago

Dockerfile+23−8

compare with master

unifiedsplit

@@ -1,17 +1,32 @@

1FROM ubuntu:bionic

3RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \

4−build-essential wget golang python-dev python3-dev liblua5.2-dev \

4+ build-essential \

5+ wget \

6+ golang \

7+ python-dev \

8+ python3-dev \

9+ liblua5.2-dev \

10+ ruby2.5-dev \

11+ tcl-dev \

5−ruby2.5-dev tcl-dev libnspr4-dev libffi-dev

12+ libnspr4-dev \

13+ libffi-dev

15+RUN wget \

16+ http://launchpadlibrarian.net/309343864/libmozjs185-dev_1.8.5-1.0.0+dfsg-7_amd64.deb && \

7−RUN wget http://launchpadlibrarian.net/309343864/libmozjs185-dev_1.8.5-1.0.0+dfsg-7_amd64.deb && wget http://launchpadlibrarian.net/309343863/libmozjs185-1.0_1.8.5-1.0.0+dfsg-7_amd64.deb && dpkg -i libmozjs185*.deb && rm libmozjs185*.deb

17+ wget http://launchpadlibrarian.net/309343863/libmozjs185-1.0_1.8.5-1.0.0+dfsg-7_amd64.deb && \

18+ dpkg -i libmozjs185*.deb && rm libmozjs185*.deb

9−ADD . /prybar

20+RUN mkdir -p /gocode/src/github.com/replit/prybar

10−RUN cd /prybar && make

22+ENV GOPATH=/gocode

23+

24+ADD . /gocode/src/github.com/replit/prybar

25+

12−WORKDIR /prybar

26+WORKDIR /gocode/src/github.com/replit/prybar

27+

28+RUN make prybar-python2 prybar-python3 prybar-ruby prybar-lua prybar-spidermonkey

14ENV LC_ALL=C.UTF-8

30ENV LC_ALL=C.UTF-8

16−ENTRYPOINT [ "/prybar/prybar" ]

17−CMD [ "-h" ]

32+CMD bash

Makefile+10−14

@@ -1,19 +1,15 @@

1−.PHONY: clean default

1+LANGDIR := ./languages

2−

2+LANGS := $(shell ls $(LANGDIR))

3−default: prybar

3+BINS := $(addprefix prybar-,$(LANGS))

5−deps.lst: mk-deps.sh

5+.PHONY: clean default

6− ./mk-deps.sh > deps.lst

7−

8−-include deps.lst

10−prybar: src/*.go $(plugins)

7+default: $(BINS)

11− cd src && go build -o ../prybar

13−plugins/%.so: src/languages/%/*.*

9+prybar-%: ./languages/$(*) ./utils/* ./linenoise/* ./languages/$(*)/*

10+ cp inject_launch.go ./languages/$(*)/inject_launch.go

14− cd src/languages/$* && CGO_LDFLAGS_ALLOW=".*" go build -buildmode=plugin -o ../../../$@

11+ CGO_LDFLAGS_ALLOW=".*" go build -o prybar-$(*) ./languages/$(*)

12+ rm ./languages/$(*)/inject_launch.go

16clean:

14clean:

17− @rm deps.lst

18− @rm prybar

15+ @rm ./prybar-*

19− @rm plugins/*

README.md+4−8

@@ -1,6 +1,6 @@

1# ![Prybar](logo.svg)

3−Prybar is a universal interpreter front-end. Same interface, same REPL, different languages.

3+Prybar is a universal interpreter front-end. Same interface, same REPL, different languages.

5## Why

@@ -9,7 +9,7 @@ every language implements them differently. We wanted them to all behave the sam

10## How it works

12−Prybar, written in Golang, maintains a common command-line interface that calls into

12+Prybar, written in Golang, maintains a common command-line interface that calls into

13a select language backend. The language backends are implemented using cgo and the langauge's C-bindings.

15## Usage

@@ -23,8 +23,6 @@ Usage of ./prybar:

23 -e string

24 expression to print

25 -i interactive

26− -l string

27− langauge (default "python2")

28 -ps1 string

26 -ps1 string

29 PS1 (default "--> ")

27 PS1 (default "--> ")

30 -ps2 string

28 -ps2 string

@@ -43,7 +41,7 @@ Usage of ./prybar:

44## Building

42## Building

46−Prybar uses a unix make file to build prybar along with plugins for the langage libraries `pkg-config` detects on your system.

44+Prybar uses a unix make file to build each Prybar binary with `pkg-config` to find language dependencies on your system.

48### Linux

46### Linux

@@ -57,9 +55,7 @@ brew install go r ruby python python@2 lua spidermonkey

58## Docker

56## Docker

60−The script `./extract.sh` can be used to compile all plugins and produce a tarball containing a `prybar` binary and supporting `plugin.so` files.

58+The script `./extract.sh` can be used to compile and produce a tarball containing all the Prybar binaries. Each binary will be named `prybar-<language>`. You can build all languages by running `make` in the repo's root or run `make prybar-<language>` to build a specific language.

61−

62−

64## License

60## License

extract.sh+1−1

@@ -1,3 +1,3 @@

1#!/bin/sh

2docker build -t prybar .

3−docker run prybar tar -zc prybar plugins > prybar.tar.gz

3+docker run prybar bash -c 'tar -zc prybar-*' > prybar.tar.gz

inject_launch.gonew file+8

@@ -0,0 +1,8 @@

1+// this file will be injected into a language's main package at build.

2+package main

4+import "github.com/replit/prybar/utils"

6+func main() {

7+ utils.DoCli(Instance)

8+}

src/languages/R/main.go → languages/R/main.gorenamed+3−8

@@ -37,12 +37,9 @@ import "C"

38import (

39 "unsafe"

40− //"strings"

41)

40)

43−

44type R struct {

42type R struct {

45−

46}

43}

48func (p R) Open() {

45func (p R) Open() {

@@ -56,17 +53,15 @@ func (p R) Version() string {

56func (p R) Eval(code string) {

53func (p R) Eval(code string) {

57 ccode := C.CString(code)

54 ccode := C.CString(code)

58 defer C.free(unsafe.Pointer(ccode))

55 defer C.free(unsafe.Pointer(ccode))

59− C.pry_eval(ccode)

56+ C.pry_eval(ccode)

60}

57}

62−

63func (p R) REPL() {

59func (p R) REPL() {

64− C.pry_repl();

60+ C.pry_repl()

65}

61}

67func (p R) Close() {

63func (p R) Close() {

68 C.Rf_endEmbeddedR(0)

64 C.Rf_endEmbeddedR(0)

69}

65}

71−// exported

72−var Instance R

67+var Instance = R{}

src/languages/lua/lua.c → languages/lua/lua.crenamed

The content is the same.

src/languages/lua/main.go → languages/lua/main.gorenamed+8−12

@@ -16,14 +16,11 @@ int pmain (lua_State *L);

16import "C"

18import (

19− "unsafe"

20 "strings"

19 "strings"

20+ "unsafe"

21)

23−

24−type Lua struct {

23+type Lua struct{}

25−

26−}

28func (p Lua) Open() {

25func (p Lua) Open() {

29 C.pry_init()

26 C.pry_init()

@@ -36,16 +33,16 @@ func (p Lua) Version() string {

36func (p Lua) Eval(code string) {

33func (p Lua) Eval(code string) {

37 ccode := C.CString(code)

34 ccode := C.CString(code)

38 defer C.free(unsafe.Pointer(ccode))

35 defer C.free(unsafe.Pointer(ccode))

39− C.pry_eval(ccode);

36+ C.pry_eval(ccode)

40}

37}

42func (p Lua) EvalFile(file string, args []string) {

39func (p Lua) EvalFile(file string, args []string) {

43 cfile := C.CString(file)

40 cfile := C.CString(file)

44 defer C.free(unsafe.Pointer(cfile))

41 defer C.free(unsafe.Pointer(cfile))

45−

42+

46 argv := C.CString(file + "\x00" + strings.Join(args, "\x00"))

43 argv := C.CString(file + "\x00" + strings.Join(args, "\x00"))

47 defer C.free(unsafe.Pointer(argv))

44 defer C.free(unsafe.Pointer(argv))

48− C.pry_eval_file(cfile, C.int(len(args) + 1), argv)

45+ C.pry_eval_file(cfile, C.int(len(args)+1), argv)

49}

46}

51func (p Lua) REPL() {

48func (p Lua) REPL() {

@@ -54,9 +51,8 @@ func (p Lua) REPL() {

54 C.dotty(C.pry_L)

51 C.dotty(C.pry_L)

55}

52}

57−func (p Lua) Close() {

54+func (p Lua) Close() {

58− C.lua_close(C.pry_L)

55+ C.lua_close(C.pry_L)

59}

56}

61−// exported

62−var Instance Lua

58+var Instance = Lua{}

src/languages/lua/pry.c → languages/lua/pry.crenamed

The content is the same.

src/languages/lua/pry.h → languages/lua/pry.hrenamed

The content is the same.

src/languages/python2/main.go → languages/python2/main.gorenamed+2−4

@@ -11,8 +11,7 @@ import (

11 "unsafe"

12)

14−type Python struct {

14+type Python struct{}

15−}

17func (p Python) Open() {

16func (p Python) Open() {

18 C.Py_Initialize()

17 C.Py_Initialize()

@@ -85,5 +84,4 @@ func (p Python) Close() {

85 C.Py_Finalize()

84 C.Py_Finalize()

86}

85}

88−// exported

89−var Instance Python

87+var Instance = Python{}

src/languages/python2/pry_python2.c → languages/python2/pry_python2.crenamed

The content is the same.

src/languages/python2/pry_python2.h → languages/python2/pry_python2.hrenamed

The content is the same.

src/languages/python3/main.go → languages/python3/main.gorenamed+2−4

@@ -12,8 +12,7 @@ import (

12 "unsafe"

13)

15−type Python struct {

15+type Python struct{}

16−}

18func (p Python) Open() {

17func (p Python) Open() {

19 C.Py_Initialize()

18 C.Py_Initialize()

@@ -80,5 +79,4 @@ func (p Python) Close() {

80 C.Py_Finalize()

79 C.Py_Finalize()

81}

80}

83−// exported

84−var Instance Python

82+var Instance = Python{}

src/languages/python3/pry_python3.c → languages/python3/pry_python3.crenamed

The content is the same.

src/languages/python3/pry_python3.h → languages/python3/pry_python3.hrenamed

The content is the same.

src/languages/ruby/main.go → languages/ruby/main.gorenamed+1−4

@@ -10,7 +10,6 @@ import (

10 "unsafe"

11)

13−/* */

14type Ruby struct {

13type Ruby struct {

15}

14}

@@ -42,10 +41,8 @@ func (p Ruby) EvalFile(file string, args []string) {

42func (p Ruby) REPL() {

41func (p Ruby) REPL() {

43 p.Eval("require 'irb'\nbinding.irb")

42 p.Eval("require 'irb'\nbinding.irb")

44}

43}

45−

46func (p Ruby) Close() {

44func (p Ruby) Close() {

47 C.ruby_cleanup(0)

45 C.ruby_cleanup(0)

48}

46}

50−// exported

51−var Instance Ruby

48+var Instance = Ruby{}

src/languages/ruby/pry_ruby.c → languages/ruby/pry_ruby.crenamed

The content is the same.

src/languages/ruby/pry_ruby.h → languages/ruby/pry_ruby.hrenamed

The content is the same.

src/languages/spidermonkey/main.go → languages/spidermonkey/main.gorenamed+8−15

@@ -1,6 +1,5 @@

1package main

3−

4/*

3/*

5#cgo pkg-config: mozjs185

4#cgo pkg-config: mozjs185

6#include "jsapi.h"

5#include "jsapi.h"

@@ -66,30 +65,24 @@ import (

66 "unsafe"

65 "unsafe"

67)

66)

68+type SpiderMonkey struct{}

70−type Language struct {

71−

72−}

73−

74−func (p Language) Open() {

70+func (p SpiderMonkey) Open() {

75 C.pry_open()

71 C.pry_open()

76}

72}

78−func (p Language) Version() string {

74+func (p SpiderMonkey) Version() string {

79 return C.GoString(C.JS_GetImplementationVersion())

75 return C.GoString(C.JS_GetImplementationVersion())

80− //return "JS";

81}

76}

83−func (p Language) Eval(code string) {

78+func (p SpiderMonkey) Eval(code string) {

84 ccode := C.CString(code)

79 ccode := C.CString(code)

85 defer C.free(unsafe.Pointer(ccode))

80 defer C.free(unsafe.Pointer(ccode))

86− C.pry_eval(ccode)

81+ C.pry_eval(ccode)

87}

82}

89−

90−func (p Language) Close() {

84+func (p SpiderMonkey) Close() {

91− C.pry_close()

85+ C.pry_close()

92}

86}

94−// exported

95−var Instance Language

88+var Instance = SpiderMonkey{}

src/languages/tcl/main.go → languages/tcl/main.gorenamed+7−9

@@ -11,35 +11,33 @@ import (

11 "unsafe"

12)

14−type Python struct {

14+type Tcl struct{}

15−}

17−func (p Python) Open() {

16+func (p Tcl) Open() {

18 C.pry_open()

17 C.pry_open()

19}

18}

21−func (p Python) Version() string {

20+func (p Tcl) Version() string {

22 cver := C.pry_version()

21 cver := C.pry_version()

23 ver := C.GoString(cver)

22 ver := C.GoString(cver)

24 C.free(unsafe.Pointer(cver))

23 C.free(unsafe.Pointer(cver))

25 return "TCL " + ver

24 return "TCL " + ver

26}

25}

28−func (p Python) Eval(code string) {

27+func (p Tcl) Eval(code string) {

29 ccode := C.CString(code)

28 ccode := C.CString(code)

30 defer C.free(unsafe.Pointer(ccode))

29 defer C.free(unsafe.Pointer(ccode))

31 C.pry_eval(ccode)

30 C.pry_eval(ccode)

32}

31}

34−func (p Python) EvalExpression(code string) string {

33+func (p Tcl) EvalExpression(code string) string {

35 ccode := C.CString(code)

34 ccode := C.CString(code)

36 defer C.free(unsafe.Pointer(ccode))

35 defer C.free(unsafe.Pointer(ccode))

37 return C.GoString(C.pry_eval(ccode))

36 return C.GoString(C.pry_eval(ccode))

38}

37}

40−func (p Python) Close() {

39+func (p Tcl) Close() {

41 C.pry_close()

40 C.pry_close()

42}

41}

44−// exported

45−var Instance Python

43+var Instance = Tcl{}

src/languages/tcl/pry_tcl.c → languages/tcl/pry_tcl.crenamed

The content is the same.

src/languages/tcl/pry_tcl.h → languages/tcl/pry_tcl.hrenamed

The content is the same.

src/linenoise-helper.c → linenoise/linenoise-helper.crenamed+2−3

@@ -4,8 +4,7 @@

4void linenoiseCompletionStub(const char *, linenoiseCompletions *);

5void linenoiseHintsStub(const char *, int *color, int *bold);

7−

8void linenoise_setup() {

7void linenoise_setup() {

9− linenoiseSetCompletionCallback(linenoiseCompletionStub);

8+ linenoiseSetCompletionCallback(linenoiseCompletionStub);

10− linenoiseSetHintsCallback(linenoiseHintsStub);

9+ linenoiseSetHintsCallback(linenoiseHintsStub);

11}

10}

src/linenoise.c → linenoise/linenoise.crenamed+1−1

@@ -1198,4 +1198,4 @@ int linenoiseHistoryLoad(const char *filename) {

1198 }

1199 fclose(fp);

1200 return 0;

1201−}

1201+}

src/linenoise.go → linenoise/linenoise.gorenamed+5−7

@@ -1,24 +1,23 @@

1−package main

1+package linenoise

3/*

4−#include <stdlib.h>

5#include <linenoise.h>

4#include <linenoise.h>

5+#include <stdlib.h>

7−void linenoise_setup();

7+void linenoise_setup();

10*/

11import "C"

13import (

14− "unsafe"

15 "fmt"

14 "fmt"

15+ "unsafe"

16)

18type Completer func(line string) []string

19type Hinter func(line string) string

21−

22var completer Completer

21var completer Completer

23var hinter Hinter

22var hinter Hinter

@@ -52,7 +51,7 @@ func linenoiseHintsStub(input *C.char, color *C.int, bold *C.int) *C.char {

52 return C.CString(hinter(C.GoString(input)))

51 return C.CString(hinter(C.GoString(input)))

53}

52}

55−func Linenoise(prompt string) (string,error) {

54+func Linenoise(prompt string) (string, error) {

56 C.linenoise_setup()

55 C.linenoise_setup()

57 cprompt := C.CString(prompt)

56 cprompt := C.CString(prompt)

58 defer C.free(unsafe.Pointer(cprompt))

57 defer C.free(unsafe.Pointer(cprompt))

@@ -78,4 +77,3 @@ func LinenoiseSetCompleter(newCompleter Completer) {

78func LinenoiseSetHinter(newHinter Hinter) {

77func LinenoiseSetHinter(newHinter Hinter) {

79 hinter = newHinter

78 hinter = newHinter

80}

79}

81−

src/linenoise.h → linenoise/linenoise.hrenamed

The content is the same.

mk-deps.shdeleted−22

@@ -1,22 +0,0 @@

1−#/bin/bash

2−

3−FOUND=""

4−check() {

5− pkg-config --exists $2

6− if [ $? -eq 0 ]; then

7− echo "Found plugin $1 => $2" 1>&2

8− FOUND="$FOUND plugins/$1.so"

9− else

10− echo "Couldnt find $1" 1>&2

11− fi

12−}

13−

14−for plugin in $(ls -1 src/languages/); do

15− PKG=$(grep cgo.*pkg-config src/languages/$plugin/main.go | cut -d ':' -f 2)

16− check $plugin $PKG

17−done

18−

19−

20−echo "plugins = $FOUND"

21−

22−

src/language.go → utils/language.gorenamed+15−61

@@ -1,12 +1,10 @@

1−package main

1+package utils

3import (

4 "fmt"

5 "io/ioutil"

6− "os"

7− "path/filepath"

7+ "github.com/replit/prybar/linenoise"

8− "plugin"

9− "runtime"

10)

12type PluginBase interface {

10type PluginBase interface {

@@ -45,64 +43,20 @@ type PluginSetPrompts interface {

45 SetPrompts(ps1, ps2 string)

43 SetPrompts(ps1, ps2 string)

46}

44}

48−type Langauge struct {

46+type Language struct {

49 ptr PluginBase

47 ptr PluginBase

48+ ps1 string

50}

49}

52−func finalizer(f *Langauge) {

53− fmt.Println("a finalizer has run.")

54−}

55−

56−func GetLanguage(name string) *Langauge {

57− base := "."

58− exe, err := os.Executable()

59− for {

60− o, err := os.Readlink(exe)

61− if err == nil {

62− exe = o

63− } else {

64− break

65− }

66− }

67−

68− base = filepath.Dir(exe)

69− plug, err := plugin.Open(base + "/plugins/" + name + ".so")

70−

71− if err != nil {

72− fmt.Println(err)

73− os.Exit(1)

74− }

75−

76− sym, err := plug.Lookup("Instance")

77− if err != nil {

78− fmt.Println(err)

79− os.Exit(1)

80− }

81−

82− var lang PluginBase

83− lang, ok := sym.(PluginBase)

84− if !ok {

85− fmt.Println("module did not export Language interface")

86− os.Exit(1)

87− }

88−

89− result := &Langauge{

90− ptr: lang,

91− }

92− lang.Open()

93− runtime.SetFinalizer(result, finalizer)

94− return result

95−}

96−

97−func (lang Langauge) Version() string {

51+func (lang Language) Version() string {

98 return lang.ptr.Version()

52 return lang.ptr.Version()

99}

53}

100

101−func (lang Langauge) Eval(code string) {

55+func (lang Language) Eval(code string) {

102 lang.ptr.(PluginEval).Eval(code)

56 lang.ptr.(PluginEval).Eval(code)

103}

57}

104

105−func (lang Langauge) EvalAndTryToPrint(code string) {

59+func (lang Language) EvalAndTryToPrint(code string) {

106 ee, ok := lang.ptr.(PluginEvalExpression)

60 ee, ok := lang.ptr.(PluginEvalExpression)

107 if ok {

61 if ok {

108 fmt.Println(ee.EvalExpression(code))

62 fmt.Println(ee.EvalExpression(code))

@@ -111,7 +65,7 @@ func (lang Langauge) EvalAndTryToPrint(code string) {

111 }

65 }

112}

66}

113

114−func (lang Langauge) REPLLikeEval(code string) {

68+func (lang Language) REPLLikeEval(code string) {

115 rle, ok := lang.ptr.(PluginREPLLikeEval)

69 rle, ok := lang.ptr.(PluginREPLLikeEval)

116 if ok {

70 if ok {

117 rle.REPLLikeEval(code)

71 rle.REPLLikeEval(code)

@@ -126,7 +80,7 @@ func (lang Langauge) REPLLikeEval(code string) {

126 }

80 }

127}

81}

128

129−func (lang Langauge) EvalFile(file string, args []string) {

83+func (lang Language) EvalFile(file string, args []string) {

130 pef, ok := lang.ptr.(PluginEvalFile)

84 pef, ok := lang.ptr.(PluginEvalFile)

131 if ok {

85 if ok {

132 pef.EvalFile(file, args)

86 pef.EvalFile(file, args)

@@ -139,7 +93,7 @@ func (lang Langauge) EvalFile(file string, args []string) {

139 }

93 }

140}

94}

141

142−func (lang Langauge) REPL() {

96+func (lang Language) REPL() {

143 repl, ok := lang.ptr.(PluginREPL)

97 repl, ok := lang.ptr.(PluginREPL)

144 if ok {

98 if ok {

145 repl.REPL()

99 repl.REPL()

@@ -148,18 +102,18 @@ func (lang Langauge) REPL() {

148 }

102 }

149}

103}

150

104

151−func (lang Langauge) InternalREPL() {

105+func (lang Language) InternalREPL() {

152 for {

106 for {

153− line, err := Linenoise(ps1)

107+ line, err := linenoise.Linenoise(lang.ps1)

154 if err != nil {

108 if err != nil {

155 break

109 break

156 }

110 }

157 lang.REPLLikeEval(line)

111 lang.REPLLikeEval(line)

158− LinenoiseHistoryAdd(line)

112+ linenoise.LinenoiseHistoryAdd(line)

159 }

113 }

160}

114}

161

115

162−func (lang Langauge) SetPrompts(ps1, ps2 string) {

116+func (lang Language) SetPrompts(ps1, ps2 string) {

163 ee, ok := lang.ptr.(PluginSetPrompts)

117 ee, ok := lang.ptr.(PluginSetPrompts)

164 if ok {

118 if ok {

165 ee.SetPrompts(ps1, ps2)

119 ee.SetPrompts(ps1, ps2)

src/main.go → utils/utils.gorenamed+5−19

@@ -1,16 +1,13 @@

1−package main

1+package utils

3import (

4 "flag"

5 "fmt"

6 "io"

7 "os"

8− "strings"

9 "syscall"

8 "syscall"

10)

12−var ps1, ps2 string

13−

14type Red struct {

11type Red struct {

15 parent io.Writer

12 parent io.Writer

16}

13}

@@ -22,20 +19,14 @@ func (r *Red) Write(p []byte) (n int, err error) {

22 return n, err

19 return n, err

23}

20}

25−func main() {

22+func DoCli(p PluginBase) {

26− var language string

27 var interactive, ourInteractive bool

23 var interactive, ourInteractive bool

28 var code string

24 var code string

29 var quiet bool

25 var quiet bool

30 var exp string

26 var exp string

31 var colorizeStderr bool

27 var colorizeStderr bool

28+ var ps1, ps2 string

33− defaultLangague := os.Args[0]

34− if defaultLangague == "prybar" || strings.ContainsAny(defaultLangague, "./") {

35− defaultLangague = "python2"

36− }

37−

38− flag.StringVar(&language, "l", defaultLangague, "langauge")

39 flag.StringVar(&code, "c", "", "code to run")

30 flag.StringVar(&code, "c", "", "code to run")

40 flag.StringVar(&exp, "e", "", "expression to print")

31 flag.StringVar(&exp, "e", "", "expression to print")

@@ -52,14 +43,9 @@ func main() {

53 args := flag.Args()

44 args := flag.Args()

55− switch language {

46+ p.Open()

56− case "python":

47+ lang := &Language{ptr: p, ps1: ps1}

57− language = "python3"

58− case "javascript":

59− language = "spidermonkey"

60− }

62− lang := GetLanguage(language)

63 if !quiet {

49 if !quiet {

64 fmt.Println(lang.Version())

50 fmt.Println(lang.Version())

65 }

51 }