How to use parseField method of ast Package

Best Syzkaller code snippet using ast.parseField

visitor.go

Source:visitor.go Github

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...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 }...

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scanner.go

Source:scanner.go Github

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...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...

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helpers.go

Source:helpers.go Github

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...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}...

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parseField

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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 }

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parseField

Using AI Code Generation

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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("----")

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parseField

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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}

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parseField

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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()

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parseField

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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}

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parseField

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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}

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parseField

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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}

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parseField

Using AI Code Generation

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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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