How to use parseField method of ast Package

Best Syzkaller code snippet using ast.parseField

visitor.go

Source:visitor.go

...121	}122	v.depth++123	return v124}125func (v *visitor) parseField(d *ast.Field) Field {126	f := Field{}127	names := make([]string, 0)128	for _, id := range d.Names {129		names = append(names, id.Name)130	}131	f.Names = names132	f.FieldType = d.Type133	imports := make(map[Import]struct{})134	getFieldImports(d.Type, v.res.Imports, imports)135	f.RelatedImport = imports136	return f137}138func getFieldImports(t ast.Expr, imports map[Import]struct{}, filtered map[Import]struct{}) {139	getImport := func(pkg string) Import {140		for imp := range imports {141			if pkg == imp.Name || strings.HasSuffix(imp.Path, "/"+pkg+"\"") {142				return imp143			}144		}145		return Import{}146	}147	doSel := func(sel *ast.SelectorExpr) {148		if id, okID := sel.X.(*ast.Ident); okID {149			pkg := id.Name150			imp := getImport(pkg)151			if imp.Path != "" {152				filtered[imp] = struct{}{}153			}154		}155	}156CONTINUE:157	if sel, okSel := t.(*ast.SelectorExpr); okSel {158		doSel(sel)159	} else if star, okStar := t.(*ast.StarExpr); okStar {160		t = star.X161		goto CONTINUE162	} else if arr, okArr := t.(*ast.ArrayType); okArr {163		if sel, okSel := arr.Elt.(*ast.SelectorExpr); okSel {164			doSel(sel)165		} else if arr, okArr := arr.Elt.(*ast.ArrayType); okArr {166			t = arr167			goto CONTINUE168		}169	} else if mt, okM := t.(*ast.MapType); okM {170		if sel, okSel := mt.Key.(*ast.SelectorExpr); okSel {171			doSel(sel)172		} else if sel, okSel := mt.Key.(*ast.StarExpr); okSel {173			if sel, okSel := sel.X.(*ast.SelectorExpr); okSel {174				doSel(sel)175			}176		}177		if vt, okV := mt.Value.(*ast.SelectorExpr); okV {178			doSel(vt)179		} else if vt, okV := mt.Value.(*ast.MapType); okV {180			t = vt181			goto CONTINUE182		} else if vs, okVS := mt.Value.(*ast.StarExpr); okVS {183			if sel, okSel := vs.X.(*ast.SelectorExpr); okSel {184				doSel(sel)185			}186		} else if ar, okA := mt.Value.(*ast.ArrayType); okA {187			if sel, okS := ar.Elt.(*ast.SelectorExpr); okS {188				doSel(sel)189			} else if arr, okArr := ar.Elt.(*ast.ArrayType); okArr {190				t = arr191				goto CONTINUE192			}193		}194	}195}196func (v *visitor) parseStoreField(d *ast.Field) {197	if v.inClass && d.Doc != nil {198		list := strings.Split(d.Doc.Text(), "\n")199		for _, doc := range list {200			doc = strings.TrimSpace(doc)201			if doc == "@:public:store:cache" {202				cacheField := v.parseField(d)203				if e, ok := d.Type.(*ast.MapType); ok {204					if e, ok := e.Value.(*ast.MapType); ok {205						if _, ok := e.Value.(*ast.MapType); ok {206							v.reportErr("contract cannot support more than two level map", d.Pos())207						}208					}209				}210				v.res.StoreCaches = append(v.res.StoreCaches, cacheField)211			} else if doc == "@:public:store" {212				storeField := v.parseField(d)213				if e, ok := d.Type.(*ast.MapType); ok {214					if e, ok := e.Value.(*ast.MapType); ok {215						if _, ok := e.Value.(*ast.MapType); ok {216							v.reportErr("contract cannot support more than two level map", d.Pos())217						}218					}219				}220				v.res.Stores = append(v.res.Stores, storeField)221			}222		}223		v.initVariableCallee()224	}225}226func (v *visitor) initVariableCallee() {227	for _, s := range v.res.Stores {228		variableCallee[s.Names[0]] = struct{}{}229	}230	for _, sc := range v.res.StoreCaches {231		variableCallee[sc.Names[0]] = struct{}{}232	}233}234func (v *visitor) parseAllFunc(d *ast.FuncDecl) {235	f := v.parseFunction(d)236	if d.Doc != nil {237		// fmt.Println("FUNCTION::: name(", d.Name.Name, ") =>[[", d.Doc.Text(), "]]")238		if v.hasConstructorInComments(d) {239			if d.Name.Name == "InitChain" {240				if v.res.IsExistInitChain == true {241					v.reportErr("the InitChain function must be only one", d.Type.Pos())242				}243				v.res.InitChain = v.parseInitChain(f, d)244				v.res.IsExistInitChain = true245			} else if d.Name.Name == "UpdateChain" {246				if v.res.IsExistUpdateChain == true {247					v.reportErr("the UpdateChain function must be only one", d.Type.Pos())248				}249				v.res.UpdateChain = v.parseUpdateChain(f, d)250				v.res.IsExistUpdateChain = true251			}252		} else if v.hasMineInComments(d) {253			if d.Name.Name == "Mine" &&254				d.Type.Results != nil &&255				len(d.Type.Results.List) == 1 &&256				d.Type.Results.List[0].Type.(*ast.Ident).Name == "int64" {257				//if d.Name.Name == "Mine" {258				if v.res.IsExistMine == true {259					v.reportErr("the Mine function must be only one", d.Type.Pos())260				}261				v.res.Mine = v.parseMine(f, d)262				v.res.IsExistMine = true263			}264		}265		mGas, mB := v.getGasFromComments(d, methodGasPrefix)266		iGas, iB := v.getGasFromComments(d, interfaceGasPrefix)267		tGas, tB := v.getGasFromComments(d, ibcGasPrefix)268		if iGas < 0 {269			v.reportErr("interface gas must greater than zero", d.Pos())270		}271		if tGas != 0 && v.res.ContractName != "ibc" {272			v.reportErr("ibc interface gas must be zero", d.Pos())273		}274		if mB || iB || tB {275			v.res.Functions = append(v.res.Functions, f)276			if mB {277				f.MGas = mGas278				v.res.MFunctions = append(v.res.MFunctions, f)279			}280			if iB {281				if HaveUserDefinedStruct(f.Method) {282					v.reportErr("The method params/results type cannot use struct", f.pos)283				}284				f.IGas = iGas285				v.res.IFunctions = append(v.res.IFunctions, f)286			}287			if tB {288				f.TGas = tGas289				v.res.TFunctions = append(v.res.TFunctions, f)290			}291		}292	}293}294func (v *visitor) parseFunction(d *ast.FuncDecl) Function {295	// check296	f := Function{}297	if d.Recv != nil {298		f.Receiver = v.parseField(d.Recv.List[0])299	}300	f.Name = d.Name.Name301	f.pos = d.Pos()302	f.Params = make([]Field, 0)303	for _, param := range d.Type.Params.List {304		f.Params = append(f.Params, v.parseField(param))305	}306	f.Results = make([]Field, 0)307	if d.Type.Results != nil {308		for _, res := range d.Type.Results.List {309			f.Results = append(f.Results, v.parseField(res))310		}311	}312	f.Comments = d.Doc.Text()313	return f314}315func (v *visitor) parseInitChain(f Function, d *ast.FuncDecl) Function {316	if len(d.Type.Params.List) > 0 {317		v.reportErr("InitChain must have no params", d.Pos())318	}319	if d.Type.Results != nil && len(d.Type.Results.List) > 0 {320		v.reportErr("InitChain must have no results", d.Pos())321	}322	if d.Recv == nil || len(d.Recv.List) != 1 {323		v.reportErr("InitChain has wrong receiver", d.Pos())324	}325	if d.Recv != nil {326		f.Receiver = v.parseField(d.Recv.List[0])327		if f.Receiver.FieldType.(*ast.StarExpr).X.(*ast.Ident).Name != v.res.ContractStructure {328			v.reportErr("InitChain has wrong receiver", d.Pos())329		}330	}331	f.pos = d.Pos()332	return f333}334func (v *visitor) parseUpdateChain(f Function, d *ast.FuncDecl) Function {335	if len(d.Type.Params.List) > 0 {336		v.reportErr("UpdateChain must have no params", d.Pos())337	}338	if d.Type.Results != nil && len(d.Type.Results.List) > 0 {339		v.reportErr("UpdateChain must have no results", d.Pos())340	}341	if d.Recv == nil || len(d.Recv.List) != 1 {342		v.reportErr("UpdateChain has wrong receiver", d.Pos())343	}344	if d.Recv != nil {345		f.Receiver = v.parseField(d.Recv.List[0])346		if f.Receiver.FieldType.(*ast.StarExpr).X.(*ast.Ident).Name != v.res.ContractStructure {347			v.reportErr("UpdateChain has wrong receiver", d.Pos())348		}349	}350	f.pos = d.Pos()351	return f352}353func (v *visitor) parseMine(f Function, d *ast.FuncDecl) Function {354	if len(d.Type.Params.List) > 0 {355		v.reportErr("Mine must have no params", d.Pos())356	}357	if len(d.Type.Results.List) != 1 {358		v.reportErr("Mine must have one result", d.Pos())359	}360	if d.Recv == nil || len(d.Recv.List) != 1 {361		v.reportErr("Mine has wrong receiver", d.Pos())362	}363	if d.Recv != nil {364		f.Receiver = v.parseField(d.Recv.List[0])365		if f.Receiver.FieldType.(*ast.StarExpr).X.(*ast.Ident).Name != v.res.ContractStructure {366			v.reportErr("Mine has wrong receiver", d.Pos())367		}368	}369	f.pos = d.Pos()370	return f371}372func (v *visitor) hasConstructorInComments(d *ast.FuncDecl) bool {373	l := strings.Split(d.Doc.Text(), "\n")374	for _, c := range l {375		c = strings.TrimSpace(c)376		if strings.HasPrefix(c, "@:constructor") {377			return true378		}379	}380	return false381}382func (v *visitor) hasMineInComments(d *ast.FuncDecl) bool {383	l := strings.Split(d.Doc.Text(), "\n")384	for _, c := range l {385		c = strings.TrimSpace(c)386		if strings.HasPrefix(c, "@:public:mine") {387			return true388		}389	}390	return false391}392func (v *visitor) getGasFromComments(d *ast.FuncDecl, prefix string) (int64, bool) {393	l := strings.Split(d.Doc.Text(), "\n")394	for _, c := range l {395		c = strings.TrimSpace(c)396		if strings.HasPrefix(c, prefix) {397			if !d.Name.IsExported() {398				v.reportErr("func name invalid", d.Pos())399				return 0, false400			}401			if d.Recv == nil {402				v.reportErr("receiver required", d.Pos())403				return 0, false404			}405			if len(d.Recv.List) != 1 {406				v.reportErr("no receiver", d.Pos())407				return 0, false408			}409			if v.res.ContractStructure != d.Recv.List[0].Type.(*ast.StarExpr).X.(*ast.Ident).String() {410				v.reportErr("receiver incorrect", d.Pos())411				return 0, false412			}413			gas := c[len(prefix) : len(c)-1]414			i, e := strconv.ParseInt(gas, 10, 64)415			if e != nil {416				v.reportErr("method and interface gas must be a number", d.Pos())417			}418			return i, true419		}420	}421	return 0, false422}423// Id @ level 1 is package name424func (v *visitor) parsePackageName(d *ast.Ident) {425	if v.depth == 1 {426		if d.Name == "std" {427			v.reportErr("Contract package name cannot use std", d.Pos())428		} else if d.Name == "ibc" {429			v.reportErr("Contract package name cannot use ibc", d.Pos())430		} else {431			v.res.PackageName = d.Name432		}433	}434}435func (v *visitor) parseGenDeclare(d *ast.GenDecl) {436	if d.Tok == token.IMPORT {437		v.parseImport(d)438	} else if d.Tok == token.VAR {439		v.parseVar(d)440	} else {441		v.parseStructsNInterface(d)442	}443}444func (v *visitor) parseImport(d *ast.GenDecl) {445	for _, spec := range d.Specs {446		if imp, ok := spec.(*ast.ImportSpec); ok {447			path := imp.Path.Value448			if _, okPKG := WhiteListPKG[path]; !okPKG && !isWhitePrefix(path) {449				v.res.ErrFlag = true450				v.res.ErrorDesc = append(v.res.ErrorDesc, "INVALID IMPORT: "+path)451				v.res.ErrorPos = append(v.res.ErrorPos, d.Pos())452			} else {453				im := Import{Path: path}454				if imp.Name != nil {455					im.Name = imp.Name.Name456				}457				v.res.Imports[im] = struct{}{}458			}459		}460	}461}462func isWhitePrefix(path string) bool {463	for _, pre := range WhiteListPkgPrefix {464		if strings.HasPrefix(path, pre) {465			return true466		}467	}468	return false469}470func (v *visitor) parseVar(d *ast.GenDecl) {471	for _, spec := range d.Specs {472		if value, ok := spec.(*ast.ValueSpec); ok {473			for _, name := range value.Names {474				if name.Name == "_" {475					continue476				}477				if v.depth <= 1 {478					v.reportErr("GLOBAL VAR:"+name.Name, d.Pos())479				} else if strings.HasPrefix(name.Obj.Name, "float") {480					v.reportErr("FLOAT VAR:"+name.Name, d.Pos())481				}482			}483		}484	}485}486func (v *visitor) parseStructsNInterface(d *ast.GenDecl) {487	for _, spec := range d.Specs {488		if typ, ok := spec.(*ast.TypeSpec); ok {489			if v.depth == 1 && d.Doc != nil {490				if _, ok := typ.Type.(*ast.InterfaceType); ok {491					v.parseInterface(d, typ)492					v.parseImportInterface(d, typ)493				}494				if _, ok := typ.Type.(*ast.StructType); ok {495					v.parseStructs(d, typ)496				}497			}498		}499	}500}501// parse interface annotation (receipt)502func (v *visitor) parseInterface(d *ast.GenDecl, typ *ast.TypeSpec) {503	// fmt.Println("INTERFACE::: name(", typ.Name, ") =>[[", d.Doc.Text(), "]]")504	if v.isReceipt(d) {505		if v.res.Receipts == nil {506			v.res.Receipts = make([]Method, 0)507		}508		it, _ := typ.Type.(*ast.InterfaceType)509		for _, am := range it.Methods.List {510			if am.Names[0].Name[:4] != "emit" {511				v.reportErr("Method os receipt interface must start with 'emit'", typ.Pos())512			}513			if m, ok := am.Type.(*ast.FuncType); ok {514				params := make([]Field, 0)515				for _, p := range m.Params.List {516					params = append(params, v.parseField(p))517				}518				results := make([]Field, 0)519				if m.Results != nil {520					for _, r := range m.Results.List {521						results = append(results, v.parseField(r))522					}523				}524				v.res.Receipts = append(v.res.Receipts, Method{525					Name:    am.Names[0].Name,526					Params:  params,527					Results: results,528				})529			}530		}531	}532}533func (v *visitor) isReceipt(d *ast.GenDecl) bool {534	for _, l := range d.Doc.List {535		doc := strings.TrimSpace(l.Text)536		if strings.ToLower(doc) == "//@:public:receipt" {537			return true538		}539	}540	return false541}542// parse import interface annotation (import)543func (v *visitor) parseImportInterface(d *ast.GenDecl, typ *ast.TypeSpec) {544	// fmt.Println("INTERFACE::: name(", typ.Name, ") =>[[", d.Doc.Text(), "]]")545	isImport, importContract := v.isImport(d)546	if isImport {547		if v.isExist(importContract) {548			v.reportErr("import contract must unique", d.Pos())549		}550		if importContract == typ.Name.Name {551			v.reportErr("import flag name cannot same to type name", typ.Pos())552		}553		imCon := ImportContract{Name: importContract, Interfaces: make([]Method, 0), Pos: d.Pos()}554		it, _ := typ.Type.(*ast.InterfaceType)555		for _, am := range it.Methods.List {556			if m, ok := am.Type.(*ast.FuncType); ok {557				params := make([]Field, 0)558				for _, p := range m.Params.List {559					params = append(params, v.parseField(p))560				}561				results := make([]Field, 0)562				if m.Results != nil {563					for _, r := range m.Results.List {564						results = append(results, v.parseField(r))565					}566				}567				imCon.Interfaces = append(imCon.Interfaces, Method{568					Name:    am.Names[0].Name,569					Params:  params,570					Results: results,571				})572				if HaveUserDefinedStruct(imCon.Interfaces[len(imCon.Interfaces)-1]) {573					v.reportErr("The method params/results type cannot use struct", d.Pos())574				}575			}576		}577		v.res.ImportContracts = append(v.res.ImportContracts, imCon)578	}...

scanner.go

Source:scanner.go

...124		// Can be a vannilla handler. Need to check the param for *gin.Context125		if numParams == 1 {126			fui.ParamsOpening = f.Type.Params.Opening127			p := f.Type.Params.List[0]128			fi := parseField(fs, p, iResolver)129			// Should parseFuncDecl based on gin.Context... At the moment parseFuncDecl *gin.Context130			if fi.QType == "github.com/gin-gonic/gin/Context" {131				fui.Params = []FieldInfo{fi}132				fui.FType = GIN_SimpleHandler133			} else {134				log.Trace().Str("function", f.Name.Name).Str("param", fi.String()).Msg("param not of *gin.Context")135			}136		} else {137			log.Trace().Str("function", f.Name.Name).Msg("function is not a gin handler")138		}139	}140	if numResults == 1 {141		// Can be a wrapper..142		p := f.Type.Results.List[0]143		switch tp := p.Type.(type) {144		case *ast.FuncType:145			if tp.Params != nil && len(tp.Params.List) == 1 && tp.Results == nil {146				fi1 := parseField(fs, tp.Params.List[0], iResolver)147				if fi1.QType == "github.com/gin-gonic/gin/Context" {148					fui.FType = GIN_Closure_Func149				}150			}151		default:152			fi := parseField(fs, p, iResolver)153			if fi.QType == "github.com/gin-gonic/gin/HandlerFunc" || fi.QType == "H" {154				fui.Result = fi155				fui.FType = GIN_Closure_HandlerFunc156			}157		}158		if numParams > 0 {159			/*160			 * Should try to match comment annotations.161			 */162			pStart := f.Type.Params.Opening163			fui.ParamsOpening = f.Type.Params.Opening164			for _, p := range f.Type.Params.List {165				fi := parseField(fs, p, iResolver)166				cg := findFieldComment(pStart, fi.Pos, comments)167				if cg != nil {168					a, err := parseComments(cg)169					if err != nil {170						log.Error().Str("function", f.Name.Name).Str("field", fi.Name).Err(err).Msg("error in parsing comments")171						return fui, nil172					}173					fi.Annotations = a174				}175				fui.Params = append(fui.Params, fi)176				// Increment the starting pos to next param.177				pStart = fi.End178			}179		}180	}181	// More than one result: function filtered.182	return fui, nil183}184func findFieldComment(paramsStartPos token.Pos, paramNameStartPos token.Pos, cmms []*ast.CommentGroup) *ast.CommentGroup {185	for _, cg := range cmms {186		if cg.Pos() > paramsStartPos && cg.Pos() < paramNameStartPos {187			return cg188		}189	}190	return nil191}192func parseField(fs *token.FileSet, field *ast.Field, resolver *importResolver) FieldInfo {193	fi := FieldInfo{}194	if len(field.Names) > 0 {195		fi.Name = field.Names[0].Name196	}197	fi.FilePos = fs.Position(field.Pos())198	fi.Pos = field.Pos()199	fi.End = field.End()200	switch tt := field.Type.(type) {201	case *ast.StarExpr:202		fi.Pointer = true203		switch ttt := tt.X.(type) {204		case *ast.SelectorExpr:205			fi.Sel = ttt.Sel.Name206			fi.X = ttt.X.(*ast.Ident).Name...

helpers.go

Source:helpers.go

...26		return ast.NewIdent("object")27	}28	return expr.(*ast.Ident)29}30func parseField(f *ast.Field) *StructField {31	if len(f.Names) > 0 {32		ident := getEndIdent(f.Type)33		field := NewStructField(f.Names[0].Name, ident.Name)34		if _, ok := f.Type.(*ast.StarExpr); ok {35			field.Pointer = true36		}37		if f.Doc != nil {38			for _, c := range f.Doc.List {39				field.Annotations.addLine(c.Text)40			}41		}42		if f.Comment != nil {43			for _, c := range f.Comment.List {44				field.Annotations.addLine(c.Text)45			}46		}47		return field48	}49	return nil50}51func parseStructSpec(decl *ast.GenDecl) (s *Struct) {52	if spec, ok := decl.Specs[0].(*ast.TypeSpec); ok {53		if structType, ok := spec.Type.(*ast.StructType); ok {54			if decl.Doc != nil {55				s = NewStruct(spec.Name.Name)56				for _, cg := range decl.Doc.List {57					s.Annotations.addLine(cg.Text)58				}59				for _, f := range structType.Fields.List {60					parsed := parseField(f)61					if parsed != nil {62						s.Fields = append(s.Fields, parseField(f))63					}64				}65			}66		}67	}68	return69}...

parseField

Using AI Code Generation

1import (2func main() {3	import "fmt"4	func main() {5		fmt.Println("Hello, world.")6	}7	f, err := parser.ParseFile(fset, "hello.go", src, parser.ParseComments)8	if err != nil {9		fmt.Println(err)10	}11	fmt.Println("Imports:")12	for _, s := range f.Imports {13		fmt.Println(s.Path.Value)14	}15}16import (17func main() {18	import "fmt"19	func main() {20		fmt.Println("Hello, world.")21	}22	f, err := parser.ParseFile(fset, "hello.go", src, parser.ParseComments)23	if err != nil {24		fmt.Println(err)25	}26	fmt.Println("Declarations:")27	for _, d := range f.Decls {28		fmt.Printf("%T29	}30}31import (32func main() {33	import "fmt"34	func main() {35		fmt.Println("Hello, world.")36	}37	f, err := parser.ParseFile(fset, "hello.go", src, parser.ParseComments)38	if err != nil {39		fmt.Println(err)40	}41	fmt.Println("Statements:")42	for _, d := range f.Decls {43		gd, ok := d.(*ast.FuncDecl)44		if !ok {45		}

parseField

Using AI Code Generation

1import (2func main() {3	f, err := parser.ParseFile(fset, "2.go", nil, 0)4	if err != nil {5		fmt.Println(err)6	}7	ast.Print(fset, f)8	fmt.Println("----")9	ast.Print(fset, f.Decls[0])10	fmt.Println("----")11	ast.Print(fset, f.Decls[0].(*ast.GenDecl).Specs[0])12	fmt.Println("----")13	ast.Print(fset, f.Decls[0].(*ast.GenDecl).Specs[0].(*ast.TypeSpec).Type)14	fmt.Println("----")15	ast.Print(fset, f.Decls[0].(*ast.GenDecl).Specs[0].(*ast.TypeSpec).Type.(*ast.StructType).Fields)16	fmt.Println("----")17	ast.Print(fset, f.Decls[0].(*ast.GenDecl).Specs[0].(*ast.TypeSpec).Type.(*ast.StructType).Fields.List[0])18	fmt.Println("----")19	ast.Print(fset, f.Decls[0].(*ast.GenDecl).Specs[0].(*ast.TypeSpec).Type.(*ast.StructType).Fields.List[0].Type)20	fmt.Println("----")21	ast.Print(fset, f.Decls[0].(*ast.GenDecl).Specs[0].(*ast.TypeSpec).Type.(*ast.StructType).Fields.List[0].Type.(*ast.Ident))22	fmt.Println("----")23	ast.Print(fset, f.Decls[0].(*ast.GenDecl).Specs[0].(*ast.TypeSpec).Type.(*ast.StructType).Fields.List[0].Type.(*ast.Ident).Obj)24	fmt.Println("----")

parseField

Using AI Code Generation

1import (2func main() {3	f, err := parser.ParseFile(fset, "1.go", nil, parser.ImportsOnly)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	}11}

parseField

Using AI Code Generation

1func main() {2    f, err := parser.ParseFile(fset, "2.go", nil, parser.ParseComments)3    if err != nil {4        log.Fatal(err)5    }6    ast.Inspect(f, func(n ast.Node) bool {7        switch x := n.(type) {8            fmt.Println("Tag:", x.Tag)9            fmt.Println("Type:", x.Type)10            fmt.Println("Names:", x.Names)11        }12    })13}14func main() {15    fset := token.NewFileSet()

parseField

Using AI Code Generation

1func parseField(field *ast.Field) string {2    buf.WriteString(field.Names[0].Name)3    buf.WriteString(" ")4    buf.WriteString(field.Type.(*ast.Ident).Name)5    return buf.String()6}7func parseFieldList(list *ast.FieldList) string {8    for i, field := range list.List {9        if i > 0 {10            buf.WriteString(", ")11        }12        buf.WriteString(parseField(field))13    }14    return buf.String()15}16func parseFuncType(ft *ast.FuncType) string {17    buf.WriteString("func(")18    buf.WriteString(parseFieldList(ft.Params))19    buf.WriteString(")")20    return buf.String()21}22func parseFuncDecl(decl *ast.FuncDecl) string {23    buf.WriteString(parseFuncType(decl.Type))24    return buf.String()25}26func parseDecl(decl ast.Decl) string {27    switch decl := decl.(type) {28        return parseFuncDecl(decl)29    }30}31func parseFile(filename string) ([]string, error) {32    fset := token.NewFileSet()33    f, err := parser.ParseFile(fset, filename, nil, parser.ParseComments)34    if err != nil {35    }36    for _, decl := range f.Decls {37        decls = append(decls, parseDecl(decl))38    }39}40func parseFiles(filenames []string) error {41    for _, filename := range filenames {42        decls, err := parseFile(filename)43        if err != nil {44        }45        for _, decl := range decls {46            fmt.Println(decl)47        }48    }49}

parseField

Using AI Code Generation

1func main() {2    f, err := parser.ParseFile(fset, "1.go", nil, parser.ParseComments)3    if err != nil {4        fmt.Println(err)5    }6    ast.Inspect(f, func(n ast.Node) bool {7        switch x := n.(type) {8            fmt.Println(parseField(x))9        }10    })11}12import "fmt"13func main() {14    f, err := parser.ParseFile(fset, "1.go", nil, parser.ParseComments)15    if err != nil {16        fmt.Println(err)17    }18    ast.Inspect(f, func(n ast.Node) bool {19        switch x := n.(type) {20            fmt.Println(parseField(x))21        }22    })23}

parseField

Using AI Code Generation

1import (2func main() {3type t struct {4}5func main() {6	t1 := t{x: 1, y: "hello"}7	fmt.Println(t1)8}9	f, err := parser.ParseFile(fset, "", src, 0)10	if err != nil {11		fmt.Println(err)12	}13	ast.Inspect(f, func(n ast.Node) bool {14		st, ok := n.(*ast.StructType)15		if !ok {16		}17		for _, field := range st.Fields.List {18			fmt.Printf("Field: %s %s19		}20	})21}22import (23func main() {24type t struct {25}26func main() {27	t1 := t{x: 1, y: "hello"}28	fmt.Println(t1)29}30	f, err := parser.ParseFile(fset, "", src, 0)31	if err != nil {32		fmt.Println(err)33	}34	ast.Inspect(f, func(n ast.Node) bool {35		st, ok := n.(*ast.StructType)36		if !ok {37		}38		for _, field := range st.Fields.List {39			fmt.Printf("Field: %s %s40		}41	})42}

parseField

Using AI Code Generation

1func parseField(field *ast.Field) string {2	if len(names) == 0 {3	}4}5func parseType(field *ast.Field) string {6	return field.Type.(*ast.Ident).Name7}8func parseTag(field *ast.Field) string {9	return reflect.StructTag(field.Tag.Value[1 : len(field.Tag.Value)-1]).Get("json")10}11func parseStruct(strct *ast.StructType) []StructField {12	for _, field := range strct.Fields.List {13		if field.Names == nil {14		}15		fields = append(fields, StructField{16			Name: parseField(field),17			Type: parseType(field),18			Tag:  parseTag(field),19		})20	}21}22func parseStructType(strct *ast.TypeSpec) StructType {23	return StructType{24		Fields: parseStruct(strct.Type.(*ast.StructType)),25	}26}27func parseStructTypes(file *ast.File) []StructType {28	for _, decl := range file.Decls {29		if genDecl, ok := decl.(*ast.GenDecl); ok {30			for _, spec := range genDecl.Specs {31				if typeSpec, ok := spec.(*ast.TypeSpec); ok {32					if _, ok := typeSpec.Type.(*ast.StructType); ok

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