How to use fmtTypeList method of ast Package

Best Syzkaller code snippet using ast.fmtTypeList

format.go

Source:format.go Github

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...102 if n.Ret != nil {103 fmt.Fprintf(w, " %v", fmtType(n.Ret))104 }105 if len(n.Attrs) != 0 {106 fmt.Fprintf(w, " %v", fmtTypeList(n.Attrs, "(", ")"))107 }108 fmt.Fprintf(w, "\n")109}110func (n *Struct) serialize(w io.Writer) {111 opening, closing := '{', '}'112 if n.IsUnion {113 opening, closing = '[', ']'114 }115 fmt.Fprintf(w, "%v %c\n", n.Name.Name, opening)116 // Align all field types to the same column.117 const tabWidth = 8118 maxTabs := 0119 for _, f := range n.Fields {120 tabs := (len(f.Name.Name) + tabWidth) / tabWidth121 if maxTabs < tabs {122 maxTabs = tabs123 }124 }125 for _, f := range n.Fields {126 if f.NewBlock {127 fmt.Fprintf(w, "\n")128 }129 for _, com := range f.Comments {130 com.serialize(w)131 }132 fmt.Fprintf(w, "\t%v\t", f.Name.Name)133 for tabs := len(f.Name.Name)/tabWidth + 1; tabs < maxTabs; tabs++ {134 fmt.Fprintf(w, "\t")135 }136 fmt.Fprintf(w, "%v", fmtType(f.Type))137 if len(f.Attrs) != 0 {138 fmt.Fprintf(w, "\t%v", fmtTypeList(f.Attrs, "(", ")"))139 }140 fmt.Fprintf(w, "\n")141 }142 for _, com := range n.Comments {143 com.serialize(w)144 }145 fmt.Fprintf(w, "%c", closing)146 if attrs := fmtTypeList(n.Attrs, "[", "]"); attrs != "" {147 fmt.Fprintf(w, " %v", attrs)148 }149 fmt.Fprintf(w, "\n")150}151func (n *IntFlags) serialize(w io.Writer) {152 fmt.Fprintf(w, "%v = ", n.Name.Name)153 for i, v := range n.Values {154 fmt.Fprintf(w, "%v%v", comma(i, ""), fmtInt(v))155 }156 fmt.Fprintf(w, "\n")157}158func (n *StrFlags) serialize(w io.Writer) {159 fmt.Fprintf(w, "%v = ", n.Name.Name)160 for i, v := range n.Values {161 fmt.Fprintf(w, "%v%v", comma(i, ""), FormatStr(v.Value, v.Fmt))162 }163 fmt.Fprintf(w, "\n")164}165func fmtField(f *Field) string {166 return fmt.Sprintf("%v %v", f.Name.Name, fmtType(f.Type))167}168func (n *Type) serialize(w io.Writer) {169 w.Write([]byte(fmtType(n)))170}171func fmtType(t *Type) string {172 v := ""173 switch {174 case t.Ident != "":175 v = t.Ident176 case t.HasString:177 v = FormatStr(t.String, t.StringFmt)178 default:179 v = FormatInt(t.Value, t.ValueFmt)180 }181 for _, c := range t.Colon {182 v += ":" + fmtType(c)183 }184 v += fmtTypeList(t.Args, "[", "]")185 return v186}187func fmtTypeList(args []*Type, opening, closing string) string {188 if len(args) == 0 {189 return ""190 }191 w := new(bytes.Buffer)192 fmt.Fprint(w, opening)193 for i, t := range args {194 fmt.Fprintf(w, "%v%v", comma(i, ""), fmtType(t))195 }196 fmt.Fprint(w, closing)197 return w.String()198}199func fmtIdentList(args []*Ident) string {200 if len(args) == 0 {201 return ""...

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fmtTypeList

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1import (2func main() {3 f, err := parser.ParseFile(fset, "test.go", nil, parser.ParseComments)4 if err != nil {5 panic(err)6 }7 ast.Inspect(f, func(n ast.Node) bool {8 switch x := n.(type) {9 fmt.Println("function declaration")10 fmt.Println("function name", x.Name)11 fmt.Println("function type", x.Type)12 fmt.Println("function body", x.Body)13 fmt.Println("function parameters", x.Type.Params)14 fmt.Println("function results", x.Type.Results)15 fmt.Println("function parameters list", x.Type.Params.List)16 fmt.Println("function results list", x.Type.Results.List)17 fmt.Println("function parameters types", x.Type.Params.List[0].Type)18 fmt.Println("function results types", x.Type.Results.List[0].Type)19 fmt.Println("function parameters type", x.Type.Params.List[0].Type.(*ast.Ident).Name)20 fmt.Println("function results type", x.Type.Results.List[0].Type.(*ast.Ident).Name)21 fmt.Println("function parameters name", x.Type.Params.List[0].Names[0].Name)22 fmt.Println("function results name", x.Type.Results.List[0].Names[0].Name)23 fmt.Println("function parameters type list", x.Type.Params.List[0].Type.(*ast.Ident))24 fmt.Println("function results type list", x.Type.Results.List[0].Type.(*ast.Ident))25 fmt.Println("function parameters type list", x.Type.Params.List[0].Type.(*ast.Ident).Obj)26 fmt.Println("function results type list", x.Type.Results.List[0].Type.(*ast.Ident).Obj)27 fmt.Println("function parameters type list", x.Type.Params.List[0].Type.(*ast.Ident).Obj.Decl)28 fmt.Println("function results type list", x.Type.Results.List[0].Type.(*ast.Ident).Obj.Decl)29 fmt.Println("function parameters type list", x.Type.Params.List[0].Type.(*ast.Ident).Obj.Kind)30 fmt.Println("function results type list", x.Type.Results.List

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fmtTypeList

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1import (2func main() {3 fset := token.NewFileSet()4 f, err := parser.ParseFile(fset, "1.go", nil, parser.ParseComments)5 if err != nil {6 log.Fatal(err)7 }8 ast.Inspect(f, func(n ast.Node) bool {9 switch x := n.(type) {10 fmt.Println("FuncDecl:", x.Name.Name)11 fmt.Println("TypeList:", x.Type.Params.List)12 fmt.Println("TypeList:", x.Type.Params.List[0].Type)13 fmt.Println("TypeList:", x.Type.Params.List[0].Type.(*ast.Ident).Name)14 fmt.Println("TypeList:", x.Type.Params.List[1].Type.(*ast.Ident).Name)15 fmt.Println("TypeList:", x.Type.Params.List[2].Type.(*ast.Ident).Name)16 fmt.Println("TypeList:", x.Type.Results.List[0].Type.(*ast.Ident).Name)17 }18 })19}20TypeList: [func main() (int, error) *ast.Field]21TypeList: func main() (int, error)

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fmtTypeList

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1import (2func main() {3 f, err := parser.ParseFile(fset, "2.go", nil, parser.ImportsOnly)4 if err != nil {5 fmt.Println(err)6 }7 fmt.Println("Imports:")8 for _, s := range f.Imports {9 fmt.Println(s.Path.Value)10 }11}12import (13func main() {14 f, err := parser.ParseFile(fset, "3.go", nil, parser.ImportsOnly)15 if err != nil {16 fmt.Println(err)17 }18 fmt.Println("Imports:")19 for _, s := range f.Imports {20 fmt.Println(s.Path.Value)21 }22}23import (24func main() {25 f, err := parser.ParseFile(fset, "4.go", nil, parser.ImportsOnly)26 if err != nil {27 fmt.Println(err)28 }29 fmt.Println("Imports:")30 for _, s := range f.Imports {31 fmt.Println(s.Path.Value)32 }33}

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fmtTypeList

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1import (2func main() {3 f := ast.NewFile()4 f.Decls = []ast.Decl{5 &ast.GenDecl{6 Specs: []ast.Spec{7 &ast.ImportSpec{8 Path: &ast.BasicLit{9 },10 },11 },12 },13 &ast.FuncDecl{14 Name: &ast.Ident{15 },16 Type: &ast.FuncType{17 Params: &ast.FieldList{18 List: []*ast.Field{19 &ast.Field{20 Names: []*ast.Ident{21 &ast.Ident{22 },23 },24 Type: &ast.ArrayType{25 Elt: &ast.Ident{26 },27 },28 },29 },30 },31 },32 Body: &ast.BlockStmt{33 List: []ast.Stmt{34 &ast.ExprStmt{35 X: &ast.CallExpr{36 Fun: &ast.SelectorExpr{37 X: &ast.Ident{38 },39 Sel: &ast.Ident{40 },41 },42 Args: []ast.Expr{43 &ast.BasicLit{44 },45 },46 },47 },48 },49 },50 },51 }52 fmt.Println(f)53}54import (55func main() {56 f := ast.NewFile()57 f.Decls = []ast.Decl{58 &ast.GenDecl{59 Specs: []ast.Spec{60 &ast.ImportSpec{61 Path: &ast.BasicLit{62 },63 },64 },65 },66 &ast.FuncDecl{67 Name: &ast.Ident{68 },69 Type: &ast.FuncType{70 Params: &ast.FieldList{71 List: []*ast.Field{72 &ast.Field{73 Names: []*ast.Ident{74 &ast.Ident{75 },76 },

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fmtTypeList

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1import "fmt"2import "go/ast"3import "go/parser"4import "go/token"5func main() {6fset := token.NewFileSet()7f, err := parser.ParseFile(fset, "1.go", nil, parser.ParseComments)8if err != nil {9fmt.Println(err)10}11af := ast.NewFile(fset, fset.File(f.Pos()), nil, 0)12fd := &ast.FuncDecl{Name: ast.NewIdent("main")}13bs := &ast.BlockStmt{}14es := &ast.ExprStmt{X: &ast.CallExpr{15Fun: &ast.SelectorExpr{16X: &ast.Ident{Name: "fmt"},17Sel: ast.NewIdent("Println"),18},19}}20bl := &ast.BasicLit{Kind: token.STRING, Value: `"hello world"`}21es.X.(*ast.CallExpr).Args = []ast.Expr{bl}22bs.List = append(bs.List, es)23af.Decls = append(af.Decls, fd)24fmtTypeList(fset, af)25}26func fmtTypeList(fset *token.FileSet, af *ast.File) {27ast.Fprint(fset, os.Stdout, af, nil)28}29import "fmt"30import "go/ast"31import "go/parser"32import "go/token"33func main() {34fset := token.NewFileSet()35f, err := parser.ParseFile(fset, "1.go", nil, parser.ParseComments)36if err != nil {37fmt.Println(err)38}39af := ast.NewFile(fset, fset.File(f.Pos()), nil, 0)40fd := &ast.FuncDecl{Name: ast.NewIdent("main")}41bs := &ast.BlockStmt{}

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fmtTypeList

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1import "fmt"2func main() {3 fmt.Println(t.fmtTypeList())4}5import "fmt"6func main() {7 fmt.Println(t.fmtTypeList())8}9I have a Go project that uses a 3rd party library that I need to import into my project. The 3rd party library is not in the GOPATH so I cannot import it directly, but it does have a go.mod file. I've tried using the following commands to import the 3rd party library:

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