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How to use Transform method of compiler Package

Best K6 code snippet using compiler.Transform

compiler.go

Source:compiler.go

...11var tscSrc string12type Compiler struct {13	babelVm       *goja.Runtime14	babelCompiler goja.Value15	TransformFunc goja.Callable16	tscVm        *goja.Runtime17	tscCompiler  goja.Value18	tscTranspile goja.Callable19	tscModule    goja.Value20	lockMutex sync.Mutex21}22func (c *Compiler) Compile(source string, filename string, main bool) (*goja.Program, error) {23	// Compiling is locked24	c.lockMutex.Lock()25	defer c.lockMutex.Unlock()26	options := map[string]interface{}{27		"compilerOptions": map[string]interface{}{28			"module": c.tscModule,29			//"module": "es6",30			//"target": "es5",31		},32	}33	// TSC test34	value, err := c.tscTranspile(c.tscCompiler, c.tscVm.ToValue(c.tscVm.ToValue(source)), c.tscVm.ToValue(options))35	if err != nil {36		return nil, err37	}38	transpiledSource := value.ToObject(c.tscVm).Get("outputText").String()39	// Transform the code40	opts := c.getOptions()41	opts["filename"] = filename42	v, err := c.TransformFunc(c.babelCompiler, c.babelVm.ToValue(transpiledSource), c.babelVm.ToValue(opts))43	if err != nil {44		return nil, err45	}46	vObject := v.ToObject(c.babelVm)47	var code string48	if err := c.babelVm.ExportTo(vObject.Get("code"), &code); err != nil {49		return nil, err50	}51	if !main {52		code = "(function(module, exports){\n" + code + "\n})\n"53	}54	ast, err := parser.ParseFile(nil, filename, code, 0, parser.WithDisableSourceMaps)55	if err != nil {56		return nil, err57	}58	program, err := goja.CompileAST(ast, true)59	if err != nil {60		return nil, err61	}62	return program, nil63}64func (c *Compiler) getOptions() map[string]interface{} {65	return map[string]interface{}{66		// "presets": []string{"latest"},67		"plugins": []interface{}{68			// es2015 https://github.com/babel/babel/blob/v6.26.0/packages/babel-preset-es2015/src/index.js69			// in goja70			// []interface{}{"transform-es2015-template-literals", map[string]interface{}{"loose": false, "spec": false}},71			// "transform-es2015-literals", // in goja72			// "transform-es2015-function-name", // in goja73			// []interface{}{"transform-es2015-arrow-functions", map[string]interface{}{"spec": false}}, // in goja74			// "transform-es2015-block-scoped-functions", // in goja75			[]interface{}{"transform-es2015-classes", map[string]interface{}{"loose": false}},76			"transform-es2015-object-super",77			// "transform-es2015-shorthand-properties", // in goja78			// "transform-es2015-duplicate-keys", // in goja79			// []interface{}{"transform-es2015-computed-properties", map[string]interface{}{"loose": false}}, // in goja80			// "transform-es2015-for-of", // in goja81			// "transform-es2015-sticky-regex", // in goja82			// "transform-es2015-unicode-regex", // in goja83			// "check-es2015-constants", // in goja84			// []interface{}{"transform-es2015-spread", map[string]interface{}{"loose": false}}, // in goja85			// "transform-es2015-parameters", // in goja86			// []interface{}{"transform-es2015-destructuring", map[string]interface{}{"loose": false}}, // in goja87			// "transform-es2015-block-scoping", // in goja88			// "transform-es2015-typeof-symbol", // in goja89			// all the other module plugins are just dropped90			[]interface{}{"transform-es2015-modules-commonjs", map[string]interface{}{"loose": false}},91			// "transform-regenerator", // Doesn't really work unless regeneratorRuntime is also added92			// es2016 https://github.com/babel/babel/blob/v6.26.0/packages/babel-preset-es2016/src/index.js93			"transform-exponentiation-operator",94			// es2017 https://github.com/babel/babel/blob/v6.26.0/packages/babel-preset-es2017/src/index.js95			// "syntax-trailing-function-commas", // in goja96			// "transform-async-to-generator", // Doesn't really work unless regeneratorRuntime is also added97		},98		"ast":           false,99		"sourceMaps":    false,100		"babelrc":       false,101		"compact":       false,102		"retainLines":   true,103		"highlightCode": false,104	}105}106func (c *Compiler) compileAndLoad(name string, source string, strict bool) (*goja.Runtime, error) {107	program, err := goja.Compile(name, source, strict)108	if err != nil {109		return nil, err110	}111	vm := goja.New()112	_, err = vm.RunProgram(program)113	if err != nil {114		return nil, err115	}116	return vm, nil117}118func (c *Compiler) loadBabel() error {119	babelVm, err := c.compileAndLoad("babel.min.js", babelSrc, false)120	if err != nil {121		return err122	}123	babelCompiler := babelVm.Get("Babel")124	babelObject := babelCompiler.ToObject(babelVm)125	c.babelVm = babelVm126	c.babelCompiler = babelCompiler127	if err := babelVm.ExportTo(babelObject.Get("transform"), &c.TransformFunc); err != nil {128		return err129	}130	return nil131}132func (c *Compiler) loadTsc() error {133	vm, err := c.compileAndLoad("v4.2.4.min.js", tscSrc, false)134	if err != nil {135		return err136	}137	tsc := vm.Get("ts")138	tscObject := tsc.ToObject(vm)139	object := tscObject.Get("ModuleKind").ToObject(c.tscVm).Get("CommonJS").ToNumber()140	c.tscModule = object141	c.tscVm = vm...

opt.go

Source:opt.go

...4	"path/filepath"5)6// Option set a compiler option.7type Option func(*Compiler)8// WithTransform returns a compiler option to set transform t.9func WithTransform(t Transform) Option {10	return func(c *Compiler) {11		c.transforms = append(c.transforms, t)12	}13}14// WithMetadata returns a compiler option to set metadata.15func WithMetadata(m Metadata) Option {16	return func(c *Compiler) {17		c.metadata = m18	}19}20// WithClone returns a compiler option to clone.21func WithClone(clone bool) Option {22	return func(c *Compiler) {23		c.noclone = !clone24	}25}26// WithVolumes configutes the compiler with default volumes that27// are mounted to each container in the pipeline.28func WithVolumes(volumes ...string) Option {29	return WithTransform(30		transformVolume(volumes...),31	)32}33// WithRegistry configures the compiler with registry credentials34// that should be used to download images.35func WithRegistry(registries ...Registry) Option {36	return WithTransform(37		transformRegistry(registries...),38	)39}40// WithSecret configures the compiler with external secrets41// to be injected into the container at runtime.42func WithSecret(secrets ...Secret) Option {43	return WithTransform(44		transformSecret(secrets...),45	)46}47// WithNetrc configures the compiler with netrc authentication48// credentials added by default to every container in the pipeline.49func WithNetrc(username, password, machine string) Option {50	return WithEnviron(51		map[string]string{52			"CI_NETRC_USERNAME":    username,53			"CI_NETRC_PASSWORD":    password,54			"CI_NETRC_MACHINE":     machine,55			"DRONE_NETRC_USERNAME": username,56			"DRONE_NETRC_PASSWORD": password,57			"DRONE_NETRC_MACHINE":  machine,58		},59	)60}61// WithWorkspace configures the compiler with the workspace base62// and path. The workspace base is a volume created at runtime and63// mounted into all containers in the pipeline. The base and path64// are joined to provide the working directory for all build and65// plugin steps in the pipeline.66func WithWorkspace(base, path string) Option {67	return WithTransform(68		transformWorkspace(base, path),69	)70}71// WithWorkspaceFromURL configures the compiler with the workspace72// base and path based on the repository url.73func WithWorkspaceFromURL(base, link string) Option {74	path := "src"75	parsed, err := url.Parse(link)76	if err == nil {77		path = filepath.Join(path, parsed.Hostname(), parsed.Path)78	}79	return WithWorkspace(base, path)80}81// WithPrivileged configures the compiler to automatically execute82// images as privileged containers if the match the given list.83func WithPrivileged(images ...string) Option {84	return WithTransform(85		transformPrivilege(images...),86	)87}88// WithEnviron configures the compiler with environment variables89// added by default to every container in the pipeline.90func WithEnviron(env map[string]string) Option {91	return WithTransform(92		transformEnv(env),93	)94}95// WithNetworks configures the compiler with additionnal networks96// to be connected to build containers97func WithNetworks(networks ...string) Option {98	return WithTransform(99		transformNetwork(networks...),100	)101}102// WithLimits configures the compiler with default resource limits that103// are applied each container in the pipeline.104func WithLimits(limits Resources) Option {105	return WithTransform(106		transformLimits(limits),107	)108}...

Transform

Using AI Code Generation

1import (2func main() {3	fset := token.NewFileSet()4	f, err := parser.ParseFile(fset, "test.go", nil, 0)5	if err != nil {6		fmt.Printf("Error parsing file: %v", err)7		os.Exit(1)8	}9	pkgs, err := packages.Load(nil, ".")10	if err != nil {11		log.Fatal(err)12	}13	conf := types.Config{Importer: pkg.Fset}14	_, err = conf.Check(pkg.PkgPath, pkg.Fset, []*ast.File{f}, nil)15	if err != nil {16		log.Fatal(err)17	}18	c := astutil.NewPackageCompiler(pkg.Fset, pkg.TypesInfo, nil)19	c.Transform(f)20	ast.Print(fset, f)21}22import "fmt"23func main() {24	fmt.Println("Hello World")25}26import (27func main() {28	fset := token.NewFileSet()29	f, err := parser.ParseFile(fset, "test.go", nil, 0)30	if err != nil {31		fmt.Printf("Error parsing file: %v", err)32		os.Exit(1)33	}34	pkgs, err := packages.Load(nil, ".")

Transform

Using AI Code Generation

1import (2func main() {3	pkgs, err := packages.Load(&conf, os.Args[1])4	if err != nil {5		log.Fatal(err)6	}7	if packages.PrintErrors(pkgs) > 0 {8		os.Exit(1)9	}10	mainPkg := ssa.NewPackage(ssa.GlobalDebug, token.NewFileSet(), "main", "main")11	mainPkg.Pkg = &types.Package{}12	mainPkg.Members = make(map[ssa.Member]bool)13	mainFunc := ssa.NewFunction(mainPkg, token.NoPos, "main", nil, nil)14	mainPkg.Func("main").Synthetic = "package main"15	c := ssautil.NewChecker()16	c.Init(mainPkg, mainFunc, nil, nil)17	b := ssautil.NewBuilder(mainFunc)18	t := ssautil.NewTransformer(mainFunc)19	for _, pkg := range pkgs {20		if pkg.PkgPath == "unsafe" {21		}22		for _, file := range pkg.Syntax {23			f := b.CreateFunction(file)24			c.CreatePackage(pkg.TypesInfo, pkg.Types, f)25			t.TransformPackage(pkg.TypesInfo, pkg.Types, f)26		}27	}

Transform

Using AI Code Generation

1import (2func main() {3	reader := bufio.NewReader(os.Stdin)4	fmt.Print("Enter text: ")5	text, _ := reader.ReadString('6	fmt.Println(text)7	c := regexp.MustCompile("a(x*)b")8	fmt.Println(c.Transform(text))9}

Transform

Using AI Code Generation

1import (2func main() {3import "fmt"4func main() {5    fmt.Println("Hello, world.")6}7    f, err := parser.ParseFile(fset, "hello.go", src, parser.ImportsOnly)8    if err != nil {9        fmt.Println(err)10    }11    for _, s := range f.Imports {12        fmt.Println(s.Path.Value)13    }14}15|   └───*ast.File {16|       .  Name: *ast.Ident {17|       .  }18|       .  Decls: []ast.Decl (len = 1) {19|       .  .  0: *ast.GenDecl {20|       .  .  .  Tok: import21|       .  .  .  Specs: []ast.Spec (len = 1) {22|       .  .  .  .  0: *ast.ImportSpec {23|       .  .  .  .  .  Path: *ast.BasicLit {24|       .  .  .  .  .  }25|       .  .  .  .  }26|       .  .  .  }27|       .  .  }

Transform

Using AI Code Generation

1import (2func main() {3	f, err := parser.ParseFile(fset, "1.go", nil, parser.ParseComments)4	if err != nil {5		log.Fatal(err)6	}7	fmt.Println("Imports:")8	for _, s := range f.Imports {9		fmt.Println(s.Path.Value)10	}

Transform

Using AI Code Generation

1import (2func main() {3	fset := token.NewFileSet()4	f, err := parser.ParseFile(fset, "1.go", nil, parser.ParseComments)5	if err != nil {6		log.Fatal(err)7	}8	c := types.NewCompiler(fset, nil, nil, 0)9	err = c.Compile([]*ast.File{f})10	if err != nil {11		log.Fatal(err)12	}13	info := c.Info()14	for _, p := range info.Defs {15		fmt.Println(p.Name())16	}17}

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