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How to use canBeArg method of compiler Package

Best Syzkaller code snippet using compiler.canBeArg

types.go

Source:types.go

1// Copyright 2017 syzkaller project authors. All rights reserved.2// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.3package compiler4import (5	"fmt"6	"strconv"7	"github.com/google/syzkaller/pkg/ast"8	"github.com/google/syzkaller/prog"9)10// typeDesc is arg/field type descriptor.11type typeDesc struct {12	Names        []string13	CanBeArg     bool       // can be argument of syscall?14	CantBeOpt    bool       // can't be marked as opt?15	CantBeRet    bool       // can't be syscall return (directly or indirectly)?16	NeedBase     bool       // needs base type when used as field?17	AllowColon   bool       // allow colon (int8:2) on fields?18	ResourceBase bool       // can be resource base type?19	OptArgs      int        // number of optional arguments in Args array20	Args         []namedArg // type arguments21	// Check does custom verification of the type (optional).22	Check func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon)23	// Varlen returns if the type is variable-length (false if not set).24	Varlen func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) bool25	// Gen generates corresponding prog.Type.26	Gen func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type27}28// typeArg describes a type argument.29type typeArg struct {30	Names      []string31	Kind       int  // int/ident/string32	AllowColon bool // allow colon (2:3)?33	// Check does custom verification of the arg (optional).34	Check func(comp *compiler, t *ast.Type)35}36type namedArg struct {37	Name string38	Type *typeArg39}40const (41	kindAny = iota42	kindInt43	kindIdent44	kindString45)46var typeInt = &typeDesc{47	Names:        []string{"int8", "int16", "int32", "int64", "int16be", "int32be", "int64be", "intptr"},48	CanBeArg:     true,49	AllowColon:   true,50	ResourceBase: true,51	OptArgs:      1,52	Args:         []namedArg{{"range", typeArgRange}},53	Check: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) {54		typeArgBase.Type.Check(comp, t)55	},56	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {57		size, be := comp.parseIntType(t.Ident)58		kind, rangeBegin, rangeEnd := prog.IntPlain, uint64(0), uint64(0)59		if len(args) > 0 {60			kind, rangeBegin, rangeEnd = prog.IntRange, args[0].Value, args[0].Value261		}62		base.TypeSize = size63		return &prog.IntType{64			IntTypeCommon: genIntCommon(base.TypeCommon, t.Value2, be),65			Kind:          kind,66			RangeBegin:    rangeBegin,67			RangeEnd:      rangeEnd,68		}69	},70}71var typePtr = &typeDesc{72	Names:    []string{"ptr", "ptr64"},73	CanBeArg: true,74	Args:     []namedArg{{"direction", typeArgDir}, {"type", typeArgType}},75	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {76		base.ArgDir = prog.DirIn // pointers are always in77		base.TypeSize = comp.ptrSize78		if t.Ident == "ptr64" {79			base.TypeSize = 880		}81		return &prog.PtrType{82			TypeCommon: base.TypeCommon,83			Type:       comp.genType(args[1], "", genDir(args[0]), false),84		}85	},86}87var typeArray = &typeDesc{88	Names:     []string{"array"},89	CantBeOpt: true,90	OptArgs:   1,91	Args:      []namedArg{{"type", typeArgType}, {"size", typeArgRange}},92	Check: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) {93		if len(args) > 1 && args[1].Value == 0 && args[1].Value2 == 0 {94			// This is the only case that can yield 0 static type size.95			comp.error(args[1].Pos, "arrays of size 0 are not supported")96		}97	},98	Varlen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) bool {99		if comp.isVarlen(args[0]) {100			return true101		}102		if len(args) > 1 {103			return args[1].Value != args[1].Value2104		}105		return true106	},107	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {108		elemType := comp.genType(args[0], "", base.ArgDir, false)109		kind, begin, end := prog.ArrayRandLen, uint64(0), uint64(0)110		if len(args) > 1 {111			kind, begin, end = prog.ArrayRangeLen, args[1].Value, args[1].Value2112		}113		if it, ok := elemType.(*prog.IntType); ok && it.Kind == prog.IntPlain && it.TypeSize == 1 {114			// Special case: buffer is better mutated.115			bufKind := prog.BufferBlobRand116			base.TypeSize = 0117			if kind == prog.ArrayRangeLen {118				bufKind = prog.BufferBlobRange119				if begin == end {120					base.TypeSize = begin * elemType.Size()121				}122			}123			return &prog.BufferType{124				TypeCommon: base.TypeCommon,125				Kind:       bufKind,126				RangeBegin: begin,127				RangeEnd:   end,128			}129		}130		// TypeSize is assigned later in genStructDescs.131		return &prog.ArrayType{132			TypeCommon: base.TypeCommon,133			Type:       elemType,134			Kind:       kind,135			RangeBegin: begin,136			RangeEnd:   end,137		}138	},139}140var typeLen = &typeDesc{141	Names:     []string{"len", "bytesize", "bytesize2", "bytesize4", "bytesize8"},142	CanBeArg:  true,143	CantBeOpt: true,144	CantBeRet: true,145	NeedBase:  true,146	Args:      []namedArg{{"len target", typeArgLenTarget}},147	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {148		var byteSize uint64149		switch t.Ident {150		case "bytesize":151			byteSize = 1152		case "bytesize2", "bytesize4", "bytesize8":153			byteSize, _ = strconv.ParseUint(t.Ident[8:], 10, 8)154		}155		return &prog.LenType{156			IntTypeCommon: base,157			Buf:           args[0].Ident,158			ByteSize:      byteSize,159		}160	},161}162var typeConst = &typeDesc{163	Names:     []string{"const"},164	CanBeArg:  true,165	CantBeOpt: true,166	NeedBase:  true,167	Args:      []namedArg{{"value", typeArgInt}},168	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {169		return &prog.ConstType{170			IntTypeCommon: base,171			Val:           args[0].Value,172		}173	},174}175var typeArgLenTarget = &typeArg{176	Kind: kindIdent,177}178var typeFlags = &typeDesc{179	Names:     []string{"flags"},180	CanBeArg:  true,181	CantBeOpt: true,182	NeedBase:  true,183	Args:      []namedArg{{"flags", typeArgFlags}},184	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {185		name := args[0].Ident186		base.TypeName = name187		f := comp.intFlags[name]188		if len(f.Values) == 0 {189			// We can get this if all values are unsupported consts.190			return &prog.IntType{191				IntTypeCommon: base,192				Kind:          prog.IntPlain,193			}194		}195		return &prog.FlagsType{196			IntTypeCommon: base,197			Vals:          genIntArray(f.Values),198		}199	},200}201var typeArgFlags = &typeArg{202	Kind: kindIdent,203	Check: func(comp *compiler, t *ast.Type) {204		if comp.intFlags[t.Ident] == nil {205			comp.error(t.Pos, "unknown flags %v", t.Ident)206			return207		}208	},209}210var typeFilename = &typeDesc{211	Names:     []string{"filename"},212	CantBeOpt: true,213	Varlen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) bool {214		return true215	},216	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {217		base.TypeSize = 0218		return &prog.BufferType{219			TypeCommon: base.TypeCommon,220			Kind:       prog.BufferFilename,221		}222	},223}224var typeFileoff = &typeDesc{225	Names:     []string{"fileoff"},226	CanBeArg:  true,227	CantBeOpt: true,228	NeedBase:  true,229	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {230		return &prog.IntType{231			IntTypeCommon: base,232			Kind:          prog.IntFileoff,233		}234	},235}236var typeVMA = &typeDesc{237	Names:    []string{"vma"},238	CanBeArg: true,239	OptArgs:  1,240	Args:     []namedArg{{"size range", typeArgRange}},241	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {242		begin, end := uint64(0), uint64(0)243		if len(args) > 0 {244			begin, end = args[0].Value, args[0].Value2245		}246		base.TypeSize = comp.ptrSize247		return &prog.VmaType{248			TypeCommon: base.TypeCommon,249			RangeBegin: begin,250			RangeEnd:   end,251		}252	},253}254// TODO(dvyukov): perhaps, we need something like typedefs for such types.255// So that users can introduce them as necessary without modifying compiler:256// type signalno int32[0:64]257var typeSignalno = &typeDesc{258	Names:     []string{"signalno"},259	CanBeArg:  true,260	CantBeOpt: true,261	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {262		base.TypeSize = 4263		return &prog.IntType{264			IntTypeCommon: base,265			Kind:          prog.IntRange,266			RangeBegin:    0,267			RangeEnd:      65,268		}269	},270}271var typeCsum = &typeDesc{272	Names:     []string{"csum"},273	NeedBase:  true,274	CantBeOpt: true,275	CantBeRet: true,276	OptArgs:   1,277	Args:      []namedArg{{"csum target", typeArgLenTarget}, {"kind", typeArgCsumType}, {"proto", typeArgInt}},278	Check: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) {279		if len(args) > 2 && genCsumKind(args[1]) != prog.CsumPseudo {280			comp.error(args[2].Pos, "only pseudo csum can have proto")281		}282	},283	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {284		var proto uint64285		if len(args) > 2 {286			proto = args[2].Value287		}288		return &prog.CsumType{289			IntTypeCommon: base,290			Buf:           args[0].Ident,291			Kind:          genCsumKind(args[1]),292			Protocol:      proto,293		}294	},295}296var typeArgCsumType = &typeArg{297	Kind:  kindIdent,298	Names: []string{"inet", "pseudo"},299}300func genCsumKind(t *ast.Type) prog.CsumKind {301	switch t.Ident {302	case "inet":303		return prog.CsumInet304	case "pseudo":305		return prog.CsumPseudo306	default:307		panic(fmt.Sprintf("unknown csum kind %q", t.Ident))308	}309}310var typeProc = &typeDesc{311	Names:     []string{"proc"},312	CanBeArg:  true,313	CantBeOpt: true,314	NeedBase:  true,315	Args:      []namedArg{{"range start", typeArgInt}, {"per-proc values", typeArgInt}},316	Check: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) {317		start := args[0].Value318		perProc := args[1].Value319		if perProc == 0 {320			comp.error(args[1].Pos, "proc per-process values must not be 0")321			return322		}323		size := base.TypeSize * 8324		if size != 64 {325			const maxPids = 32 // executor knows about this constant (MAX_PIDS)326			if start >= 1<<size {327				comp.error(args[0].Pos, "values starting from %v overflow base type", start)328			} else if start+maxPids*perProc >= 1<<size {329				comp.error(args[0].Pos, "values starting from %v with step %v overflow base type for %v procs",330					start, perProc, maxPids)331			}332		}333	},334	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {335		return &prog.ProcType{336			IntTypeCommon: base,337			ValuesStart:   args[0].Value,338			ValuesPerProc: args[1].Value,339		}340	},341}342var typeText = &typeDesc{343	Names:     []string{"text"},344	CantBeOpt: true,345	Args:      []namedArg{{"kind", typeArgTextType}},346	Varlen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) bool {347		return true348	},349	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {350		base.TypeSize = 0351		return &prog.BufferType{352			TypeCommon: base.TypeCommon,353			Kind:       prog.BufferText,354			Text:       genTextType(args[0]),355		}356	},357}358var typeArgTextType = &typeArg{359	Kind:  kindIdent,360	Names: []string{"x86_real", "x86_16", "x86_32", "x86_64", "arm64"},361}362func genTextType(t *ast.Type) prog.TextKind {363	switch t.Ident {364	case "x86_real":365		return prog.Text_x86_real366	case "x86_16":367		return prog.Text_x86_16368	case "x86_32":369		return prog.Text_x86_32370	case "x86_64":371		return prog.Text_x86_64372	case "arm64":373		return prog.Text_arm64374	default:375		panic(fmt.Sprintf("unknown text type %q", t.Ident))376	}377}378var typeBuffer = &typeDesc{379	Names:    []string{"buffer"},380	CanBeArg: true,381	Args:     []namedArg{{"direction", typeArgDir}},382	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {383		base.TypeSize = comp.ptrSize384		return &prog.PtrType{385			TypeCommon: base.TypeCommon,386			Type: &prog.BufferType{387				// BufferBlobRand is always varlen.388				TypeCommon: genCommon("", "", 0, genDir(args[0]), false),389				Kind:       prog.BufferBlobRand,390			},391		}392	},393}394var typeString = &typeDesc{395	Names:   []string{"string"},396	OptArgs: 2,397	Args:    []namedArg{{"literal or flags", typeArgStringFlags}, {"size", typeArgInt}},398	Check: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) {399		if len(args) > 1 {400			size := args[1].Value401			vals := []string{args[0].String}402			if args[0].Ident != "" {403				vals = genStrArray(comp.strFlags[args[0].Ident].Values)404			}405			for _, s := range vals {406				s += "\x00"407				if uint64(len(s)) > size {408					comp.error(args[0].Pos, "string value %q exceeds buffer length %v",409						s, size)410				}411			}412		}413	},414	Varlen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) bool {415		return comp.stringSize(args) == 0416	},417	Gen: func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {418		subkind := ""419		var vals []string420		if len(args) > 0 {421			if args[0].String != "" {422				vals = append(vals, args[0].String)423			} else {424				subkind = args[0].Ident425				vals = genStrArray(comp.strFlags[subkind].Values)426			}427		}428		var size uint64429		if len(args) > 1 {430			size = args[1].Value431		}432		for i, s := range vals {433			s += "\x00"434			for uint64(len(s)) < size {435				s += "\x00"436			}437			vals[i] = s438		}439		base.TypeSize = comp.stringSize(args)440		return &prog.BufferType{441			TypeCommon: base.TypeCommon,442			Kind:       prog.BufferString,443			SubKind:    subkind,444			Values:     vals,445		}446	},447}448// stringSize returns static string size, or 0 if it is variable length.449func (comp *compiler) stringSize(args []*ast.Type) uint64 {450	switch len(args) {451	case 0:452		return 0 // a random string453	case 1:454		if args[0].String != "" {455			return uint64(len(args[0].String)) + 1 // string constant456		}457		var size uint64458		for _, s := range comp.strFlags[args[0].Ident].Values {459			s1 := uint64(len(s.Value)) + 1460			if size != 0 && size != s1 {461				return 0 // strings of different lengths462			}463			size = s1464		}465		return size // all strings have the same length466	case 2:467		return args[1].Value // have explicit length468	default:469		panic("too many string args")470	}471}472var typeArgStringFlags = &typeArg{473	Check: func(comp *compiler, t *ast.Type) {474		if t.String == "" && t.Ident == "" {475			comp.error(t.Pos, "unexpected int %v, string arg must be a string literal or string flags", t.Value)476			return477		}478		if t.Ident != "" && comp.strFlags[t.Ident] == nil {479			comp.error(t.Pos, "unknown string flags %v", t.Ident)480			return481		}482	},483}484// typeArgType is used as placeholder for any type (e.g. ptr target type).485var typeArgType = &typeArg{486	Check: func(comp *compiler, t *ast.Type) {487		panic("must not be called")488	},489}490var typeResource = &typeDesc{491	// No Names, but compiler knows how to match it.492	CanBeArg:     true,493	ResourceBase: true,494	// Gen is assigned below to avoid initialization loop.495}496func init() {497	typeResource.Gen = func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {498		// Find and generate base type to get its size.499		var baseType *ast.Type500		for r := comp.resources[t.Ident]; r != nil; {501			baseType = r.Base502			r = comp.resources[r.Base.Ident]503		}504		base.TypeSize = comp.genType(baseType, "", prog.DirIn, false).Size()505		return &prog.ResourceType{506			TypeCommon: base.TypeCommon,507		}508	}509}510var typeStruct = &typeDesc{511	// No Names, but compiler knows how to match it.512	CantBeOpt: true,513	// Varlen/Gen are assigned below due to initialization cycle.514}515func init() {516	typeStruct.Varlen = func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) bool {517		return comp.isStructVarlen(t.Ident)518	}519	typeStruct.Gen = func(comp *compiler, t *ast.Type, args []*ast.Type, base prog.IntTypeCommon) prog.Type {520		s := comp.structs[t.Ident]521		key := prog.StructKey{t.Ident, base.ArgDir}522		desc := comp.structDescs[key]523		if desc == nil {524			// Need to assign to structDescs before calling genStructDesc to break recursion.525			desc = new(prog.StructDesc)526			comp.structDescs[key] = desc527			comp.genStructDesc(desc, s, base.ArgDir)528		}529		if s.IsUnion {530			return &prog.UnionType{531				Key:        key,532				FldName:    base.FldName,533				StructDesc: desc,534			}535		} else {536			return &prog.StructType{537				Key:        key,538				FldName:    base.FldName,539				StructDesc: desc,540			}541		}542	}543}544var typeArgDir = &typeArg{545	Kind:  kindIdent,546	Names: []string{"in", "out", "inout"},547}548func genDir(t *ast.Type) prog.Dir {549	switch t.Ident {550	case "in":551		return prog.DirIn552	case "out":553		return prog.DirOut554	case "inout":555		return prog.DirInOut556	default:557		panic(fmt.Sprintf("unknown direction %q", t.Ident))558	}559}560var typeArgInt = &typeArg{561	Kind: kindInt,562}563var typeArgRange = &typeArg{564	Kind:       kindInt,565	AllowColon: true,566	Check: func(comp *compiler, t *ast.Type) {567		if !t.HasColon {568			t.Value2 = t.Value569		}570		if t.Value > t.Value2 {571			comp.error(t.Pos, "bad int range [%v:%v]", t.Value, t.Value2)572		}573	},574}575// Base type of const/len/etc. Same as typeInt, but can't have range.576var typeArgBase = namedArg{577	Name: "base type",578	Type: &typeArg{579		Names:      []string{"int8", "int16", "int32", "int64", "int16be", "int32be", "int64be", "intptr"},580		AllowColon: true,581		Check: func(comp *compiler, t *ast.Type) {582			if t.HasColon {583				if t.Value2 == 0 {584					// This was not supported historically585					// and does not work the way C bitfields of size 0 work.586					// We could allow this, but then we need to make587					// this work the way C bitfields work.588					comp.error(t.Pos2, "bitfields of size 0 are not supported")589				}590				size, _ := comp.parseIntType(t.Ident)591				if t.Value2 > size*8 {592					comp.error(t.Pos2, "bitfield of size %v is too large for base type of size %v",593						t.Value2, size*8)594				}595			}596		},597	},598}599var (600	builtinTypes = make(map[string]*typeDesc)601	// To avoid weird cases like ptr[in, in] and ptr[out, opt].602	reservedName = map[string]bool{603		"opt":   true,604		"in":    true,605		"out":   true,606		"inout": true,607	}608)609func init() {610	builtins := []*typeDesc{611		typeInt,612		typePtr,613		typeArray,614		typeLen,615		typeConst,616		typeFlags,617		typeFilename,618		typeFileoff,619		typeVMA,620		typeSignalno,621		typeCsum,622		typeProc,623		typeText,624		typeBuffer,625		typeString,626		typeResource,627		typeStruct,628	}629	for _, desc := range builtins {630		for _, name := range desc.Names {631			if builtinTypes[name] != nil {632				panic(fmt.Sprintf("duplicate builtin type %q", name))633			}634			builtinTypes[name] = desc635		}636	}637}...

canBeArg

Using AI Code Generation

1import (2func main() {3	fset := token.NewFileSet()4	f, err := parser.ParseFile(fset, "1.go", nil, parser.AllErrors)5	if err != nil {6		fmt.Println(err)7	}8	fmt.Println(f.Scope.Lookup("x").Type())9	fmt.Println(f.Scope.Lookup("x").Type().Underlying())10	fmt.Println(f.Scope.Lookup("x").Type().Underlying().(*types.Basic).Kind())11	fmt.Println(f.Scope.Lookup("x").Type().Underlying().(*types.Basic).Info())12}13import (14func main() {15	fset := token.NewFileSet()16	f, err := parser.ParseFile(fset, "1.go", nil, parser.AllErrors)17	if err != nil {18		fmt.Println(err)19	}20	fmt.Println(f.Scope.Lookup("x").Type())21	fmt.Println(f.Scope.Lookup("x").Type().Underlying())22	fmt.Println(f.Scope.Lookup("x").Type().Underlying().(*types.Basic).Kind())23	fmt.Println(f.Scope.Lookup("x").Type().Underlying().(*types.Basic).Info())24}25import (26func main() {27	fset := token.NewFileSet()28	f, err := parser.ParseFile(fset, "1.go", nil, parser.AllErrors)29	if err != nil {30		fmt.Println(err)31	}32	fmt.Println(f.Scope.Lookup("x").Type())33	fmt.Println(f.Scope.Lookup("x").Type().Underlying())34	fmt.Println(f.Scope.Lookup("x").Type().Underlying().(*types.Basic).Kind())35	fmt.Println(f.Scope.Lookup("x").Type().Underlying().(*types.Basic).Info())36}37import (38func main() {

canBeArg

Using AI Code Generation

1import (2func main() {3    if len(os.Args) != 2 {4        fmt.Println("Usage: 2.go <go file>")5        os.Exit(1)6    }7    fset := token.NewFileSet()8    astFile, err := parser.ParseFile(fset, os.Args[1], nil, parser.ParseComments)9    if err != nil {10        fmt.Println(err)11        os.Exit(1)12    }13    conf := loader.Config{ParserMode: parser.ParseComments}14    conf.CreateFromFilenames("main", os.Args[1])15    program, err := conf.Load()16    if err != nil {17        fmt.Println(err)18        os.Exit(1)19    }20    info := program.InitialPackages()[0].Info21    var visitor func(ast.Node)22    visitor = func(n ast.Node) {23        switch x := n.(type) {24            for _, p := range x.Type.Params.List {25                for _, name := range p.Names {26                    if !types.IsInterface(info.TypeOf(p.Type)) {27                    }28                    if !info.ObjectOf(name).(*types.Var).IsField() {29                    }30                    if !types.CanBeArg(info.TypeOf(p.Type)) {31                        fmt.Printf("%s:%d: %s: %s32", os.Args[1], fset.Position(name.Pos()).Line, name.Name, info.TypeOf(p.Type))33                    }34                }35            }36        }37        ast.Inspect(n, visitor)38    }39    visitor(astFile)40}41import (42func main() {43    if len(os.Args) != 2 {44        fmt.Println("Usage: 1.go <go file>")45        os.Exit(1)46    }47    fset := token.NewFileSet()48    astFile, err := parser.ParseFile(fset, os.Args[1], nil, parser.ParseComments)

canBeArg

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello, playground")4}5import (6func main() {7	fmt.Println("Hello, playground")8}9import (10func main() {11	fmt.Println("Hello, playground")12}13import (14func main() {15	fmt.Println("Hello, playground")16}17import (18func main() {19	fmt.Println("Hello, playground")20}21import (22func main() {23	fmt.Println("Hello, playground")24}25import (26func main() {27	fmt.Println("Hello, playground")28}29import (30func main() {31	fmt.Println("Hello, playground")32}33import (34func main() {35	fmt.Println("Hello, playground")36}37import (38func main() {39	fmt.Println("Hello, playground")40}41import (42func main() {43	fmt.Println("Hello, playground")44}45import (46func main() {47	fmt.Println("Hello, playground")48}49import (50func main() {51	fmt.Println("Hello,

canBeArg

Using AI Code Generation

1import (2type compiler struct {3}4func (c compiler) canBeArg(v interface{}) bool {5	return reflect.TypeOf(v).Kind() == reflect.String6}7func main() {8	c := compiler{}9}10import (11type compiler struct {12}13func (c *compiler) canBeArg(v interface{}) bool {14	return reflect.TypeOf(v).Kind() == reflect.String15}16func main() {17	c := compiler{}18}19import (20type compiler struct {21}22func (c compiler) canBeArg(v interface{}) bool {23	return reflect.TypeOf(v).Kind() == reflect.String24}

canBeArg

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, playground")4    compiler := new(Compiler)5    compiler.canBeArg("a")6}7import "fmt"8func main() {9    fmt.Println("Hello, playground")10    compiler := new(Compiler)11    compiler.canBeArg("a")12}13import "fmt"14func main() {15    fmt.Println("Hello, playground")16    compiler := new(Compiler)17    compiler.canBeArg("a")18}19import "fmt"20func main() {21    fmt.Println("Hello, playground")22    compiler := new(Compiler)23    compiler.canBeArg("a")24}25import "fmt"26func main() {27    fmt.Println("Hello, playground")28    compiler := new(Compiler)29    compiler.canBeArg("a")30}31import "fmt"32func main() {33    fmt.Println("Hello, playground")34    compiler := new(Compiler)35    compiler.canBeArg("a")36}37import "fmt"38func main() {39    fmt.Println("Hello, playground")40    compiler := new(Compiler)41    compiler.canBeArg("a")42}43import "fmt"44func main() {45    fmt.Println("Hello, playground")46    compiler := new(Compiler)47    compiler.canBeArg("a")48}49import "fmt"50func main() {51    fmt.Println("Hello, playground")52    compiler := new(Compiler)53    compiler.canBeArg("a")54}55import "fmt"56func main() {

canBeArg

Using AI Code Generation

1import (2func main() {3    fmt.Println(compiler.canBeArg(1))4}5/home/abc/go/src/2.go:9: compiler.canBeArg undefined (type compiler has no field or method canBeArg)6The correct way to import the external package is as follows:7import "github.com/abc/compiler"8import "compiler"9import "compiler"10import "compiler"11import "compiler"12import "compiler"13import "compiler"14The above line will import the compiler package

canBeArg

Using AI Code Generation

1import "fmt"2func main(){3    fmt.Println("Enter a number: ")4    fmt.Scanf("%d", &x)5    fmt.Println("The number is: ", x)6    fmt.Println("The number is even: ", compiler.canBeArg(x))7}8import "fmt"9type compiler struct{10}11func (c *compiler) canBeArg(x int) bool{12}13import "fmt"14import "1"15func main(){16    fmt.Println("Enter a number: ")17    fmt.Scanf("%d", &x)18    fmt.Println("The number is: ", x)19    fmt.Println("The number is even: ", compiler.canBeArg(x))20}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.