How to use getArgsBase method of compiler Package

Best Syzkaller code snippet using compiler.getArgsBase

check.go

Source:check.go

...284			comp.checkLenType(fld.Type, fld.Name.Name, fields, parents, checked, false)285		}286		return287	}288	_, args, _ := comp.getArgsBase(t, "", prog.DirIn, isArg)289	for i, arg := range args {290		argDesc := desc.Args[i]291		if argDesc.Type == typeArgLenTarget {292			comp.checkLenTarget(t, name, arg.Ident, fields, parents)293		} else if argDesc.Type == typeArgType {294			comp.checkLenType(arg, name, fields, parents, checked, false)295		}296	}297}298func (comp *compiler) checkLenTarget(t *ast.Type, name, target string, fields []*ast.Field, parents []*ast.Struct) {299	if target == name {300		comp.error(t.Pos, "%v target %v refer to itself", t.Ident, target)301		return302	}303	if target == "parent" {304		if len(parents) == 0 {305			comp.error(t.Pos, "%v target %v does not exist", t.Ident, target)306		}307		return308	}309	for _, fld := range fields {310		if target != fld.Name.Name {311			continue312		}313		if fld.Type == t {314			comp.error(t.Pos, "%v target %v refer to itself", t.Ident, target)315		}316		if t.Ident == "len" {317			inner := fld.Type318			desc, args, _ := comp.getArgsBase(inner, "", prog.DirIn, false)319			for desc == typePtr {320				if desc != typePtr {321					break322				}323				inner = args[1]324				desc, args, _ = comp.getArgsBase(inner, "", prog.DirIn, false)325			}326			if desc == typeArray && comp.isVarlen(args[0]) {327				comp.warning(t.Pos, "len target %v refer to an array with"+328					" variable-size elements (do you mean bytesize?)", target)329			}330		}331		return332	}333	for _, parent := range parents {334		parentName := parent.Name.Name335		if pos := strings.IndexByte(parentName, '['); pos != -1 {336			// For template parents name is "struct_name[ARG1, ARG2]", strip the part after '['.337			parentName = parentName[:pos]338		}339		if target == parentName {340			return341		}342	}343	comp.error(t.Pos, "%v target %v does not exist", t.Ident, target)344}345func (comp *compiler) checkUsed() {346	for _, decl := range comp.desc.Nodes {347		switch n := decl.(type) {348		case *ast.Call:349			if n.NR == ^uint64(0) {350				break351			}352			for _, arg := range n.Args {353				comp.checkUsedType(arg.Type, true)354			}355			if n.Ret != nil {356				comp.checkUsedType(n.Ret, true)357			}358		}359	}360}361func (comp *compiler) checkUsedType(t *ast.Type, isArg bool) {362	if comp.used[t.Ident] {363		return364	}365	desc := comp.getTypeDesc(t)366	if desc == typeResource {367		r := comp.resources[t.Ident]368		for r != nil && !comp.used[r.Name.Name] {369			comp.used[r.Name.Name] = true370			r = comp.resources[r.Base.Ident]371		}372		return373	}374	if desc == typeStruct {375		comp.used[t.Ident] = true376		s := comp.structs[t.Ident]377		for _, fld := range s.Fields {378			comp.checkUsedType(fld.Type, false)379		}380		return381	}382	_, args, _ := comp.getArgsBase(t, "", prog.DirIn, isArg)383	for i, arg := range args {384		if desc.Args[i].Type == typeArgType {385			comp.checkUsedType(arg, false)386		}387	}388}389type structDir struct {390	Struct string391	Dir    prog.Dir392}393func (comp *compiler) checkConstructors() {394	ctors := make(map[string]bool) // resources for which we have ctors395	checked := make(map[structDir]bool)396	for _, decl := range comp.desc.Nodes {397		switch n := decl.(type) {398		case *ast.Call:399			for _, arg := range n.Args {400				comp.checkTypeCtors(arg.Type, prog.DirIn, true, ctors, checked)401			}402			if n.Ret != nil {403				comp.checkTypeCtors(n.Ret, prog.DirOut, true, ctors, checked)404			}405		}406	}407	for _, decl := range comp.desc.Nodes {408		switch n := decl.(type) {409		case *ast.Resource:410			name := n.Name.Name411			if !ctors[name] && comp.used[name] {412				comp.error(n.Pos, "resource %v can't be created"+413					" (never mentioned as a syscall return value or output argument/field)",414					name)415			}416		}417	}418}419func (comp *compiler) checkTypeCtors(t *ast.Type, dir prog.Dir, isArg bool,420	ctors map[string]bool, checked map[structDir]bool) {421	desc := comp.getTypeDesc(t)422	if desc == typeResource {423		// TODO(dvyukov): consider changing this to "dir == prog.DirOut".424		// We have few questionable cases where resources can be created425		// only by inout struct fields. These structs should be split426		// into two different structs: one is in and second is out.427		// But that will require attaching dir to individual fields.428		if dir != prog.DirIn {429			r := comp.resources[t.Ident]430			for r != nil && !ctors[r.Name.Name] {431				ctors[r.Name.Name] = true432				r = comp.resources[r.Base.Ident]433			}434		}435		return436	}437	if desc == typeStruct {438		s := comp.structs[t.Ident]439		name := s.Name.Name440		key := structDir{name, dir}441		if checked[key] {442			return443		}444		checked[key] = true445		for _, fld := range s.Fields {446			comp.checkTypeCtors(fld.Type, dir, false, ctors, checked)447		}448		return449	}450	if desc == typePtr {451		dir = genDir(t.Args[0])452	}453	_, args, _ := comp.getArgsBase(t, "", dir, isArg)454	for i, arg := range args {455		if desc.Args[i].Type == typeArgType {456			comp.checkTypeCtors(arg, dir, false, ctors, checked)457		}458	}459}460func (comp *compiler) checkRecursion() {461	checked := make(map[string]bool)462	for _, decl := range comp.desc.Nodes {463		switch n := decl.(type) {464		case *ast.Resource:465			comp.checkResourceRecursion(n)466		case *ast.Struct:467			var path []pathElem468			comp.checkStructRecursion(checked, n, path)469		}470	}471}472func (comp *compiler) checkResourceRecursion(n *ast.Resource) {473	var seen []string474	for n != nil {475		if arrayContains(seen, n.Name.Name) {476			chain := ""477			for _, r := range seen {478				chain += r + "->"479			}480			chain += n.Name.Name481			comp.error(n.Pos, "recursive resource %v", chain)482			return483		}484		seen = append(seen, n.Name.Name)485		n = comp.resources[n.Base.Ident]486	}487}488type pathElem struct {489	Pos    ast.Pos490	Struct string491	Field  string492}493func (comp *compiler) checkStructRecursion(checked map[string]bool, n *ast.Struct, path []pathElem) {494	name := n.Name.Name495	if checked[name] {496		return497	}498	for i, elem := range path {499		if elem.Struct != name {500			continue501		}502		path = path[i:]503		str := ""504		for _, elem := range path {505			str += fmt.Sprintf("%v.%v -> ", elem.Struct, elem.Field)506		}507		str += name508		comp.error(path[0].Pos, "recursive declaration: %v (mark some pointers as opt)", str)509		checked[name] = true510		return511	}512	for _, f := range n.Fields {513		path = append(path, pathElem{514			Pos:    f.Pos,515			Struct: name,516			Field:  f.Name.Name,517		})518		comp.recurseField(checked, f.Type, path)519		path = path[:len(path)-1]520	}521	checked[name] = true522}523func (comp *compiler) recurseField(checked map[string]bool, t *ast.Type, path []pathElem) {524	desc := comp.getTypeDesc(t)525	if desc == typeStruct {526		comp.checkStructRecursion(checked, comp.structs[t.Ident], path)527		return528	}529	_, args, base := comp.getArgsBase(t, "", prog.DirIn, false)530	if desc == typePtr && base.IsOptional {531		return // optional pointers prune recursion532	}533	for i, arg := range args {534		if desc.Args[i].Type == typeArgType {535			comp.recurseField(checked, arg, path)536		}537	}538}539func (comp *compiler) checkStruct(ctx checkCtx, n *ast.Struct) {540	var flags checkFlags541	if !n.IsUnion {542		flags |= checkIsStruct543	}544	for _, f := range n.Fields {545		comp.checkType(ctx, f.Type, flags)546	}547	for _, attr := range n.Attrs {548		if unexpected, _, ok := checkTypeKind(attr, kindIdent); !ok {549			comp.error(attr.Pos, "unexpected %v, expect attribute", unexpected)550			return551		}552		if attr.HasColon {553			comp.error(attr.Pos2, "unexpected ':'")554			return555		}556	}557	if n.IsUnion {558		comp.parseUnionAttrs(n)559	} else {560		comp.parseStructAttrs(n)561	}562}563type checkFlags int564const (565	checkIsArg          checkFlags = 1 << iota // immediate syscall arg type566	checkIsRet                                 // immediate syscall ret type567	checkIsStruct                              // immediate struct field type568	checkIsResourceBase                        // immediate resource base type569	checkIsTypedef                             // immediate type alias/template type570)571type checkCtx struct {572	instantiationStack []string573}574func (comp *compiler) checkType(ctx checkCtx, t *ast.Type, flags checkFlags) {575	if unexpected, _, ok := checkTypeKind(t, kindIdent); !ok {576		comp.error(t.Pos, "unexpected %v, expect type", unexpected)577		return578	}579	desc := comp.getTypeDesc(t)580	if desc == nil {581		comp.error(t.Pos, "unknown type %v", t.Ident)582		return583	}584	if desc == typeTypedef {585		err0 := comp.errors586		// Replace t with type alias/template target type inplace,587		// and check the replaced type recursively.588		comp.replaceTypedef(&ctx, t, flags)589		if err0 == comp.errors {590			comp.checkType(ctx, t, flags)591		}592		return593	}594	if t.HasColon {595		if !desc.AllowColon {596			comp.error(t.Pos2, "unexpected ':'")597			return598		}599		if flags&checkIsStruct == 0 {600			comp.error(t.Pos2, "unexpected ':', only struct fields can be bitfields")601			return602		}603	}604	if flags&checkIsTypedef != 0 && !desc.CanBeTypedef {605		comp.error(t.Pos, "%v can't be type alias target", t.Ident)606		return607	}608	if flags&checkIsResourceBase != 0 && !desc.ResourceBase {609		comp.error(t.Pos, "%v can't be resource base (int types can)", t.Ident)610		return611	}612	args, opt := removeOpt(t)613	if opt != nil {614		if len(opt.Args) != 0 {615			comp.error(opt.Pos, "opt can't have arguments")616		}617		if flags&checkIsResourceBase != 0 || desc.CantBeOpt {618			what := "resource base"619			if desc.CantBeOpt {620				what = t.Ident621			}622			comp.error(opt.Pos, "%v can't be marked as opt", what)623			return624		}625	}626	addArgs := 0627	needBase := flags&checkIsArg == 0 && desc.NeedBase628	if needBase {629		addArgs++ // last arg must be base type, e.g. const[0, int32]630	}631	if len(args) > len(desc.Args)+addArgs || len(args) < len(desc.Args)-desc.OptArgs+addArgs {632		comp.error(t.Pos, "wrong number of arguments for type %v, expect %v",633			t.Ident, expectedTypeArgs(desc, needBase))634		return635	}636	if needBase {637		base := args[len(args)-1]638		args = args[:len(args)-1]639		comp.checkTypeArg(t, base, typeArgBase)640	}641	err0 := comp.errors642	for i, arg := range args {643		if desc.Args[i].Type == typeArgType {644			comp.checkType(ctx, arg, 0)645		} else {646			comp.checkTypeArg(t, arg, desc.Args[i])647		}648	}649	canBeArg, canBeRet := false, false650	if desc.CanBeArgRet != nil {651		canBeArg, canBeRet = desc.CanBeArgRet(comp, t)652	}653	if flags&checkIsRet != 0 && !canBeRet {654		comp.error(t.Pos, "%v can't be syscall return", t.Ident)655		return656	}657	if flags&checkIsArg != 0 && !canBeArg {658		comp.error(t.Pos, "%v can't be syscall argument", t.Ident)659		return660	}661	if desc.Check != nil && err0 == comp.errors {662		_, args, base := comp.getArgsBase(t, "", prog.DirIn, flags&checkIsArg != 0)663		desc.Check(comp, t, args, base)664	}665}666func (comp *compiler) replaceTypedef(ctx *checkCtx, t *ast.Type, flags checkFlags) {667	typedefName := t.Ident668	if t.HasColon {669		comp.error(t.Pos, "type alias %v with ':'", t.Ident)670		return671	}672	typedef := comp.typedefs[typedefName]673	fullTypeName := ast.SerializeNode(t)674	for i, prev := range ctx.instantiationStack {675		if prev == fullTypeName {676			ctx.instantiationStack = append(ctx.instantiationStack, fullTypeName)677			path := ""678			for j := i; j < len(ctx.instantiationStack); j++ {679				if j != i {680					path += " -> "681				}682				path += ctx.instantiationStack[j]683			}684			comp.error(t.Pos, "type instantiation loop: %v", path)685			return686		}687	}688	ctx.instantiationStack = append(ctx.instantiationStack, fullTypeName)689	nargs := len(typedef.Args)690	args := t.Args691	if nargs != len(t.Args) {692		if nargs == 0 {693			comp.error(t.Pos, "type %v is not a template", typedefName)694		} else {695			comp.error(t.Pos, "template %v needs %v arguments instead of %v",696				typedefName, nargs, len(t.Args))697		}698		return699	}700	pos0 := t.Pos701	if typedef.Type != nil {702		*t = *typedef.Type.Clone().(*ast.Type)703		if !comp.instantiate(t, typedef.Args, args) {704			return705		}706	} else {707		if comp.structs[fullTypeName] == nil {708			inst := typedef.Struct.Clone().(*ast.Struct)709			inst.Name.Name = fullTypeName710			if !comp.instantiate(inst, typedef.Args, args) {711				return712			}713			comp.checkStruct(*ctx, inst)714			comp.desc.Nodes = append(comp.desc.Nodes, inst)715			comp.structs[fullTypeName] = inst716		}717		*t = ast.Type{718			Ident: fullTypeName,719		}720	}721	t.Pos = pos0722	// Remove base type if it's not needed in this context.723	desc := comp.getTypeDesc(t)724	if flags&checkIsArg != 0 && desc.NeedBase {725		baseTypePos := len(t.Args) - 1726		if t.Args[baseTypePos].Ident == "opt" {727			baseTypePos--728		}729		copy(t.Args[baseTypePos:], t.Args[baseTypePos+1:])730		t.Args = t.Args[:len(t.Args)-1]731	}732}733func (comp *compiler) instantiate(templ ast.Node, params []*ast.Ident, args []*ast.Type) bool {734	if len(params) == 0 {735		return true736	}737	argMap := make(map[string]*ast.Type)738	for i, param := range params {739		argMap[param.Name] = args[i]740	}741	err0 := comp.errors742	templ.Walk(ast.Recursive(func(n ast.Node) {743		templArg, ok := n.(*ast.Type)744		if !ok {745			return746		}747		if concreteArg := argMap[templArg.Ident]; concreteArg != nil {748			origArgs := templArg.Args749			if len(origArgs) != 0 && len(concreteArg.Args) != 0 {750				comp.error(templArg.Pos, "both template parameter %v and its usage"+751					" have sub-arguments", templArg.Ident)752				return753			}754			*templArg = *concreteArg.Clone().(*ast.Type)755			if len(origArgs) != 0 {756				templArg.Args = origArgs757			}758		}759		// TODO(dvyukov): somewhat hacky, but required for int8[0:CONST_ARG]760		// Need more checks here. E.g. that CONST_ARG does not have subargs.761		// And if CONST_ARG is a value, then use concreteArg.Value.762		// Also need to error if CONST_ARG is a string.763		if concreteArg := argMap[templArg.Ident2]; concreteArg != nil {764			templArg.Ident2 = concreteArg.Ident765			templArg.Pos2 = concreteArg.Pos766		}767	}))768	return err0 == comp.errors769}770func (comp *compiler) checkTypeArg(t, arg *ast.Type, argDesc namedArg) {771	desc := argDesc.Type772	if len(desc.Names) != 0 {773		if unexpected, _, ok := checkTypeKind(arg, kindIdent); !ok {774			comp.error(arg.Pos, "unexpected %v for %v argument of %v type, expect %+v",775				unexpected, argDesc.Name, t.Ident, desc.Names)776			return777		}778		if !arrayContains(desc.Names, arg.Ident) {779			comp.error(arg.Pos, "unexpected value %v for %v argument of %v type, expect %+v",780				arg.Ident, argDesc.Name, t.Ident, desc.Names)781			return782		}783	} else {784		if unexpected, expect, ok := checkTypeKind(arg, desc.Kind); !ok {785			comp.error(arg.Pos, "unexpected %v for %v argument of %v type, expect %v",786				unexpected, argDesc.Name, t.Ident, expect)787			return788		}789	}790	if !desc.AllowColon && arg.HasColon {791		comp.error(arg.Pos2, "unexpected ':'")792		return793	}794	if desc.Check != nil {795		desc.Check(comp, arg)796	}797}798func expectedTypeArgs(desc *typeDesc, needBase bool) string {799	expect := ""800	for i, arg := range desc.Args {801		if expect != "" {802			expect += ", "803		}804		opt := i >= len(desc.Args)-desc.OptArgs805		if opt {806			expect += "["807		}808		expect += arg.Name809		if opt {810			expect += "]"811		}812	}813	if needBase {814		if expect != "" {815			expect += ", "816		}817		expect += typeArgBase.Name818	}819	if !desc.CantBeOpt {820		if expect != "" {821			expect += ", "822		}823		expect += "[opt]"824	}825	if expect == "" {826		expect = "no arguments"827	}828	return expect829}830func checkTypeKind(t *ast.Type, kind int) (unexpected string, expect string, ok bool) {831	switch {832	case kind == kindAny:833		ok = true834	case t.HasString:835		ok = kind == kindString836		if !ok {837			unexpected = fmt.Sprintf("string %q", t.String)838		}839	case t.Ident != "":840		ok = kind == kindIdent || kind == kindInt841		if !ok {842			unexpected = fmt.Sprintf("identifier %v", t.Ident)843		}844	default:845		ok = kind == kindInt846		if !ok {847			unexpected = fmt.Sprintf("int %v", t.Value)848		}849	}850	if !ok {851		switch kind {852		case kindString:853			expect = "string"854		case kindIdent:855			expect = "identifier"856		case kindInt:857			expect = "int"858		}859	}860	return861}862func (comp *compiler) checkVarlens() {863	for _, decl := range comp.desc.Nodes {864		switch n := decl.(type) {865		case *ast.Struct:866			comp.checkVarlen(n)867		}868	}869}870func (comp *compiler) isVarlen(t *ast.Type) bool {871	desc, args, _ := comp.getArgsBase(t, "", prog.DirIn, false)872	return desc.Varlen != nil && desc.Varlen(comp, t, args)873}874func (comp *compiler) isZeroSize(t *ast.Type) bool {875	desc, args, _ := comp.getArgsBase(t, "", prog.DirIn, false)876	return desc.ZeroSize != nil && desc.ZeroSize(comp, t, args)877}878func (comp *compiler) checkVarlen(n *ast.Struct) {879	// Non-varlen unions can't have varlen fields.880	// Non-packed structs can't have varlen fields in the middle.881	if n.IsUnion {882		if varlen, _ := comp.parseUnionAttrs(n); varlen {883			return884		}885	} else {886		if packed, _, _ := comp.parseStructAttrs(n); packed {887			return888		}889	}...

getArgsBase

Using AI Code Generation

1import (2func main() {3    conf.CreateFromFilenames("main", "2.go")4    prog, err := conf.Load()5    if err != nil {6        panic(err)7    }8    ssaProg := ssautil.CreateProgram(prog, 0)9    ssaProg.Build()10    for _, mem := range ssaProg.Members {11        if fn, ok := mem.(*ssa.Function); ok {12            for _, b := range fn.Blocks {13                for _, instr := range b.Instrs {14                    if call, ok := instr.(*ssa.Call); ok {15                        if call.Call.IsInvoke() {16                        }17                        if call.Call.Signature().String() == "func(*go/ast.FieldList) []go/ast.Expr" {18                            if args, ok := call.Call.Args[0].(*ssa.MakeInterface); ok {19                                if fieldList, ok := args.X.(*ssa.Extract); ok {20                                    for _, field := range fieldList.Type().Underlying().(*types.Tuple).At(0).Type().Underlying().(*types.Struct).Fields() {21                                        fmt.Println(field.Name())22                                    }23                                }24                            }25                        }26                    }27                }28            }29        }30    }31}32End()

getArgsBase

Using AI Code Generation

1import (2var (3	fset = flag.String("fset", "", "fset")4func main() {5	flag.Parse()6	files, err := getArgsBase()7	if err != nil {8		log.Fatal(err)9	}10	pkgs, err := packagestest.LoadFake("github.com/foo/bar", files)11	if err != nil {12		log.Fatal(err)13	}14	for _, pkg := range pkgs {15		fmt.Println("Package:", pkg.Name)16		fmt.Println("Module:", pkg.Module)17		fmt.Println("ModulePath:", pkg.ModulePath)18		fmt.Println("ModuleConfig:", pkg.ModuleConfig)19		fmt.Println("ModuleData:", pkg.ModuleData)20		fmt.Println("ModuleDeps:", pkg.ModuleDeps)21		fmt.Println("ModuleFiles:", pkg.ModuleFiles)22		fmt.Println("ModuleGoFiles:", pkg.ModuleGoFiles)23		fmt.Println("ModuleImports:", pkg.ModuleImports)24		fmt.Println("ModuleTypes:", pkg.ModuleTypes)25		fmt.Println("ModuleTypesSizes:", pkg.ModuleTypesSizes)26		fmt.Println("ModuleTypesInfo:", pkg.ModuleTypesInfo)27		fmt.Println()28	}29}

getArgsBase

Using AI Code Generation

1import (2func main() {3	comp := compiler.New()4	args := comp.GetArgsBase()5	fmt.Println(args)6}7import (8func main() {9	comp := compiler.New()10	args := comp.GetArgsBase()11	fmt.Println(args)12}13import (14func main() {15	comp := compiler.New()16	args := comp.GetArgsBase()17	fmt.Println(args)18}19import (20func main() {21	comp := compiler.New()22	args := comp.GetArgsBase()23	fmt.Println(args)24}25import (26type Compiler struct {27}28func New() *Compiler {29	return &Compiler{}30}31func (c *Compiler) GetArgsBase() []string {32}33import (34func main() {35	comp := compiler.New()36	args := comp.GetArgsBase()37	fmt.Println(args)38}39import (40func TestGetArgsBase(t *testing.T) {41	comp := compiler.New()42	args := comp.GetArgsBase()43	fmt.Println(args)44}

getArgsBase

Using AI Code Generation

1import (2func main() {3 fmt.Println("Hello, playground")4 a := getArgsBase()5 fmt.Println(a)6}

getArgsBase

Using AI Code Generation

1import (2type Compiler struct {3}4func main() {5	compiler := Compiler{name: "gcc", args: []string{"-o", "test", "test.c"}}6	fmt.Println("Compiler:", compiler.name)7	fmt.Println("Args:", compiler.args)8	fmt.Println("ArgsBase:", compiler.getArgsBase())9}10func (c *Compiler) getArgsBase() []string {11	return c.args[:len(c.args)-1]12}13import (14type Compiler struct {15}16func main() {17	compiler := Compiler{name: "gcc", args: []string{"-o", "test", "test.c"}}18	fmt.Println("Compiler:", compiler.name)19	fmt.Println("Args:", compiler.args)20	fmt.Println("ArgsBase:", compiler.getArgsBase())21}22func (c *Compiler) getArgsBase() []string {23	return c.args[:len(c.args)-1]24}25import (26type Compiler struct {27}28func main() {29	compiler := Compiler{name: "gcc", args: []string{"-o", "test", "test.c"}}30	fmt.Println("Compiler:", compiler.name)31	fmt.Println("Args:", compiler.args)32	fmt.Println("ArgsBase:", compiler.getArgsBase())33}34func (c *Compiler) getArgsBase() []string {35	return c.args[:len(c.args)-1]36}

getArgsBase

Using AI Code Generation

1import   "fmt" 2 import   "os" 3 import   "io/ioutil" 4 import   "strings" 5 func   main ()   { 6  c :=  NewCompiler () 7  file,  err  :=  ioutil . ReadFile ( os . Args [ 1 ]) 8 if  err  !=   nil   { 9    fmt . Println ( err ) 10   } 11  lines  :=   strings . Split ( string ( file ),  "12   for   _ ,  line  :=   range  lines  { 13    args  :=  c . getArgsBase ( line ) 14    fmt . Println ( args ) 15   } 16 }

getArgsBase

Using AI Code Generation

1import (2func main() {3	compiler := new(Compiler)4	args := compiler.getArgsBase()5	compiler.compile(args[0])6	compiler.run()7}8import (9type Compiler struct {10}11func (compiler *Compiler) getArgsBase() []string {12	if len(args) != 1 {13		fmt.Println("Error: Please provide one argument")14		os.Exit(1)15	}16}17func (compiler *Compiler) compile(fileName string) {18	file, err := os.Open(fileName)19	if err != nil {20		fmt.Println("Error: Could not open file")21		os.Exit(1)22	}23	scanner := bufio.NewScanner(file)24	outputFile, err := os.Create("output.go")25	if err != nil {26		fmt.Println("Error: Could not create file")27		os.Exit(1)28	}29	writer := bufio.NewWriter(outputFile)30	for scanner.Scan() {31		line := scanner.Text()

Automation Testing Tutorials

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