How to use parseResource method of ast Package

Best Syzkaller code snippet using ast.parseResource

parser.go

Source:parser.go Github

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...47 switch getStringVal(p.nextToken.Lit) {48 case "request":49 p.parseRequest()50 case "resource":51 p.parseResource()52 default:53 p.errorInfo("invalid char")54 }55 case token.STRUCT:56 p.parseStruct()57 case token.ENUM:58 p.parseEnum()59 case token.PACKAGE:60 p.parsePackage()61 case token.IMPORT:62 p.parseImport()63 default:64 p.errorInfo("invalid char")65 }66 }67 return nil68}69func (p *Parser) isIdentifier(ident string) {70 if p.needCheckIdentifier {71 if !token.IsIdentifier(ident) {72 p.errorInfo(fmt.Sprintf("%s is invalid identifier", ident))73 }74 }75}76func (p *Parser) parseStruct() {77 stru := &ast.Struct{78 Tok: p.nextToken,79 }80 p.NextTokenMust(token.STRUCT)81 tokInfo := p.NextTokenMust(token.STR)82 stru.Name = getStringVal(tokInfo.Lit)83 p.isIdentifier(stru.Name)84 p.NextTokenMust(token.COLON)85 stru.Fields = p.parseStructBody()86 p.AddStructToPool(stru)87}88func (p *Parser) parseStructBody() []*ast.StructField {89 var fields []*ast.StructField90 p.NextTokenMust(token.LBRACE)91 for p.nextToken.Tok != token.RBRACE {92 fields = append(fields, p.parseStructField())93 }94 p.NextTokenMust(token.RBRACE)95 return fields96}97// "name": {{STRING}},98func (p *Parser) parseStructField() *ast.StructField {99 structField := &ast.StructField{100 Tok: p.nextToken,101 Name: "",102 }103 // 字段名称104 p.NextTokenMust(token.STR)105 name := getStringVal(p.curToken.Lit)106 p.isIdentifier(name)107 structField.Name = name108 // :109 p.NextTokenMust(token.COLON)110 // 类型111 structField.Type = p.parseFieldType()112 // 检查是否有逗号, 如果有就跳过113 if p.nextToken.Tok == token.COMMA {114 p.NextTokenMust(token.COMMA)115 }116 return structField117}118// 解析字符表示的类型，例如："{{STRING}}"119func (p *Parser) parseFieldTypeFromStr() ast.Type {120 p.NextTokenMust(token.STR)121 // 从字符串中解析类型122 src := []byte(getStringVal(p.curToken.Lit))123 pos := scanner.Pos{124 File: p.curToken.Pos.GetFile(),125 Row: p.curToken.Pos.GetRow(),126 Col: p.curToken.Pos.GetCol() - len(p.nextToken.Lit),127 }128 e := p.parseInsertBytes(src, pos, p.parseFieldTypeWrapper)129 if e != nil {130 panic(e)131 }132 return p.typ133}134func (p *Parser) parseFieldTypeWrapper() error {135 // 存储在全局临时空间中，上层使用136 p.typ = p.parseFieldType()137 return nil138}139// 解析含有{{}}的type140func (p *Parser) parseFieldTypeHasBrace() ast.Type {141 p.NextTokenMust(token.LBRACE)142 p.NextTokenMust(token.LBRACE)143 t := p.parseFieldType()144 p.NextTokenMust(token.RBRACE)145 p.NextTokenMust(token.RBRACE)146 return t147}148func (p *Parser) parseFieldType() ast.Type {149 switch p.nextToken.Tok {150 case token.INT, token.INT32, token.INT64,151 token.UINT32, token.UINT64, token.DOUBLE, token.FLOAT, token.BOOL, token.BOOLEAN, token.STRING:152 p.Scan()153 return ast.NewBasicType(p.curToken)154 case token.MAP:155 return p.parseMap()156 case token.ENUM:157 return p.parseEnumType()158 case token.LBRACK:159 return p.parseArray()160 case token.LBRACE:161 return p.parseFieldTypeHasBrace()162 case token.STR:163 return p.parseFieldTypeFromStr()164 case token.IDENT:165 p.NextTokenMust(token.IDENT)166 return ast.NewStructType(p.curToken)167 default:168 p.errExpect("field type")169 }170 return nil171}172func (p *Parser) parseArray() *ast.Array {173 array := ast.NewArrayType(p.nextToken)174 p.NextTokenMust(token.LBRACK)175 array.ItemType = p.parseFieldType()176 p.NextTokenMust(token.RBRACK)177 return array178}179func (p *Parser) parseMap() *ast.Map {180 m := ast.NewMapType(p.nextToken)181 p.NextTokenMust(token.MAP)182 p.NextTokenMust(token.LSS)183 m.Key = p.parseMapKeyType()184 p.NextTokenMust(token.COMMA)185 m.Val = p.parseMapValType()186 p.NextTokenMust(token.GTR)187 return m188}189func (p *Parser) parseMapKeyType() ast.Type {190 return p.parseFieldType()191}192func (p *Parser) parseMapValType() ast.Type {193 return p.parseFieldType()194}195func (p *Parser) parseEnumType() ast.Type {196 p.NextTokenMust(token.ENUM)197 enum := ast.NewEnumType(p.curToken)198 // 兼容老版本，如果没有<>199 // 当做STRING类型处理200 if p.nextToken.Tok != token.LSS {201 p.curToken.Tok = token.STRING202 return ast.NewBasicType(p.curToken)203 }204 p.NextTokenMust(token.LSS)205 enum.ValType = p.parseFieldType()206 p.NextTokenMust(token.GTR)207 return enum208}209/*210* enum "city" : {211* "beijin": 1",212* "shanghai": 2,213* }214 */215func (p *Parser) parseEnum() {216 enum := &ast.Enum{217 Tok: p.nextToken,218 Name: "",219 }220 p.NextTokenMust(token.ENUM)221 tokInfo := p.NextTokenMust(token.STR)222 enum.Name = getStringVal(tokInfo.Lit)223 p.isIdentifier(enum.Name)224 p.NextTokenMust(token.COLON)225 p.NextTokenMust(token.LBRACE)226 if p.nextToken.Tok != token.STR {227 p.errorInfo("enum value can not be empty")228 }229 for p.nextToken.Tok != token.RBRACE {230 enum.Fields = append(enum.Fields, p.parseEnumField())231 }232 p.NextTokenMust(token.RBRACE)233 p.AddEnumToPool(enum)234}235func (p *Parser) parseEnumField() *ast.EnumField {236 field := &ast.EnumField{237 Tok: p.nextToken,238 }239 tokInfo := p.NextTokenMust(token.STR)240 field.Name = getStringVal(tokInfo.Lit)241 p.isIdentifier(field.Name)242 p.NextTokenMust(token.COLON)243 tokInfo = p.NextTokenMust(token.INTEGER)244 tag, _ := strconv.Atoi(tokInfo.Lit)245 field.Tag = ast.EnumTag{246 Tag: tag,247 Tok: tokInfo,248 }249 // 检查是否有逗号, 如果有就跳过250 if p.nextToken.Tok == token.COMMA {251 p.NextTokenMust(token.COMMA)252 }253 return field254}255func (p *Parser) parseRequest() {256 req := &ast.Request{}257 p.NextTokenMustWithLit(token.STR, `"request"`)258 p.NextTokenMust(token.COLON)259 p.NextTokenMust(token.LBRACE)260 p.NextTokenMustWithLit(token.STR, `"url"`)261 p.NextTokenMust(token.COLON)262 tokenInfo := p.NextTokenMust(token.STR)263 req.Url = ast.RequestUrl{264 Tok: tokenInfo,265 Name: getStringVal(tokenInfo.Lit),266 }267 p.AddRequestToPool(req)268 if p.nextToken.Tok == token.COMMA {269 p.NextTokenMust(token.COMMA)270 }271 // 如果下一个直接是'}',说明没有params,272 if p.nextToken.Tok == token.RBRACE {273 p.NextTokenMust(token.RBRACE)274 return275 }276 p.NextTokenMustWithLit(token.STR, `"params"`)277 paramToken := p.curToken278 p.NextTokenMust(token.COLON)279 // 如果是 { 根据规则自动生成struct280 if p.nextToken.Tok == token.LBRACE {281 fields := p.parseStructBody()282 if len(fields) == 0 {283 // 如果为空，则认为没有params284 return285 }286 paramStructName := req.GeneParamsName()287 // 添加param288 strcu := &ast.Struct{289 Tok: paramToken,290 Name: paramStructName,291 Fields: fields,292 }293 p.AddStructToPool(strcu)294 req.Params = &ast.RequestParams{295 Tok: p.curToken,296 StructName: paramStructName,297 }298 } else {299 // 如果不是{，那么就应该是直接指定了struct的名称300 p.parseFieldType()301 if p.nextToken.Tok == token.COMMA {302 p.NextTokenMust(token.COMMA)303 }304 typ, ok := p.typ.(ast.StructType)305 if !ok {306 p.errorInfo("params must be a struct type")307 }308 req.Params = &ast.RequestParams{309 Tok: paramToken,310 StructName: typ.Name,311 }312 }313 p.NextTokenMust(token.RBRACE)314}315func (p *Parser) parseResource() {316}317func (p *Parser) parsePackage() {318 p.NextTokenMust(token.PACKAGE)319 p.NextTokenMust(token.IDENT)320 p.NextTokenMust(token.SEMICOLON)321}322func (p *Parser) parseImport() {323 p.NextTokenMustWithLit(token.IDENT, "import")324 tokenInfo := p.NextTokenMust(token.STR)325 fileName := getStringVal(tokenInfo.Lit)326 p.NextTokenMust(token.SEMICOLON)327 // curFileName328 curFileName := p.scan[p.level].FileName()329 curImp := p.getImport(curFileName)...

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analyzer.go

Source:analyzer.go Github

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...75 return76 }77 unary := result.(*ast.UnaryExpr)78 compositeLit := unary.X.(*ast.CompositeLit)79 parseResource(compositeLit, pass)80 })81 return nil, nil82}83func parseResource(compositeLit *ast.CompositeLit, pass *analysis.Pass) {84 selExpr := compositeLit.Type.(*ast.SelectorExpr)85 // Only consider schema.Resource86 if fmt.Sprintf("%s", selExpr.X) != "schema" || fmt.Sprintf("%s", selExpr.Sel) != "Resource" {87 return88 }89 var schemaKeyValueExpr *ast.KeyValueExpr90 for _, expr := range compositeLit.Elts {91 keyValueExpr := expr.(*ast.KeyValueExpr)92 // Only consider schema.Schema definition93 if fmt.Sprintf("%s", keyValueExpr.Key) == "Schema" {94 schemaKeyValueExpr = keyValueExpr95 break96 }97 }98 // Return if schema.Schema is not found99 if schemaKeyValueExpr == nil {100 return101 }102 // For each attribute, check the order of the fields103 attributes := schemaKeyValueExpr.Value.(*ast.CompositeLit)104 for _, expr := range attributes.Elts {105 field := expr.(*ast.KeyValueExpr)106 checkFieldOrder(field, pass)107 }108 return109}110func checkFieldOrder(field *ast.KeyValueExpr, pass *analysis.Pass) {111 fieldDef := field.Value.(*ast.CompositeLit)112 sorted := make([]int, len(fieldDef.Elts))113 for i, expr := range fieldDef.Elts {114 keyValueExpr := expr.(*ast.KeyValueExpr)115 key := fmt.Sprintf("%s", keyValueExpr.Key)116 v, ok := orderMap[key]117 if ok {118 sorted[i] = v119 } else {120 pass.Reportf(keyValueExpr.Pos(), "found new field name: %s", key)121 // Prevent other fields from conflicting with this field122 sorted[i] = len(ordering) + 1123 }124 }125 sort.Ints(sorted)126 indexes := make([]int, len(fieldDef.Elts))127 for i, expr := range fieldDef.Elts {128 keyValueExpr := expr.(*ast.KeyValueExpr)129 key := fmt.Sprintf("%s", keyValueExpr.Key)130 v, ok := orderMap[key]131 if ok {132 indexes[i] = v133 } else {134 pass.Reportf(keyValueExpr.Pos(), "found new field name: %s", key)135 // Prevent other fields from conflicting with this field136 indexes[i] = len(ordering) + 1137 }138 index := getWrongIndex(indexes, v, i)139 if index == - 1 {140 continue141 } else {142 name2 := ordering[indexes[index]]143 pass.Reportf(keyValueExpr.Pos(), "%s should come before %s", key, name2)144 }145 // Handle nested resource definitions146 if key == "Elem" {147 unary := keyValueExpr.Value.(*ast.UnaryExpr)148 compositeLit := unary.X.(*ast.CompositeLit)149 parseResource(compositeLit, pass)150 }151 }152}153func getWrongIndex(slice []int, val int, end int) int {154 smallestValue := 0155 smallestIndex := -1156 for i := 0; i < end; i++ {157 v := slice[i]158 if v < val {159 continue160 }161 if smallestIndex == -1 || v < smallestValue {162 smallestValue = v163 smallestIndex = i...

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parser_test.go

Source:parser_test.go Github

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...8 "github.com/stackoverflow/novah-go/test"9)10var fmtt = ast.NewFormatter()11func TestOperators(t *testing.T) {12 mod := parseResource("../../test_data/operators.novah", t)13 pick := func(i int) string {14 return fmtt.ShowExpr(mod.Decls[i].(ast.SValDecl).Exp)15 }16 x := "w || r && x || p"17 fl := "(a >> b >> c) 1"18 fr := "(a << b << c) 1"19 l1 := "3 + 7 ^ 4 * 6 * 9"20 l2 := "3 ^ (7 * 4) * 6 + 9"21 r1 := "bla 3 $ df 4 $ pa"22 r2 := "3 :: 5 :: 7 :: Nil"23 ap := "fn 3 4 5"24 a2 := "fn (fn2 8)"25 co := "fn 'x' y (Some (3 + 4) 1)"26 test.Equals(t, pick(0), x)27 test.Equals(t, pick(1), fl)28 test.Equals(t, pick(2), fr)29 test.Equals(t, pick(3), l1)30 test.Equals(t, pick(4), l2)31 test.Equals(t, pick(5), r1)32 test.Equals(t, pick(6), r2)33 test.Equals(t, pick(7), ap)34 test.Equals(t, pick(8), a2)35 test.Equals(t, pick(9), co)36}37func TestLambdas(t *testing.T) {38 mod := parseResource("../../test_data/lambda.novah", t)39 l1 := mod.Decls[0].(ast.SValDecl).Exp40 l2 := mod.Decls[1].(ast.SValDecl).Exp41 expl1 := "\\x -> x"42 expl2 := "\\x y z -> 1"43 test.Equals(t, fmtt.ShowExpr(l1), expl1)44 test.Equals(t, fmtt.ShowExpr(l2), expl2)45}46func TestComments(t *testing.T) {47 mod := parseResource("../../test_data/comments.novah", t)48 data := mod.Decls[0].GetComment()49 typ := mod.Decls[1].GetComment()50 val := mod.Decls[2].GetComment()51 nocomm := mod.Decls[3].GetComment()52 test.Equals(t, data.Text, " comments on type definitions work")53 test.Equals(t, typ.Text, "\n comments on var\n types work\n")54 test.Equals(t, val.Text, " comments on var declaration work\n and are concatenated")55 test.Equals(t, nocomm, nil)56}57func TestTypeHints(t *testing.T) {58 mod := parseResource("../../test_data/hints.novah", t)59 x := mod.Decls[0].(ast.SValDecl).Exp.(ast.SAnn)60 test.Equals(t, fmtt.ShowType(x.Type), "String")61}62func TestRecords(t *testing.T) {63 parseResource("../../test_data/records.novah", t)64 // should not panic65}66func parseResource(input string, t *testing.T) ast.SModule {67 reader, _ := os.Open(input)68 defer reader.Close()69 return parseString(reader, input, t)70}71func parseString(reader io.Reader, name string, t *testing.T) ast.SModule {72 lexer := lexer.New(name, reader)73 parser := NewParser(lexer)74 mod, errs := parser.ParseFullModule()75 if len(errs) > 0 {76 for _, err := range errs {77 t.Errorf(err.FormatToConsole())78 }79 panic("Error in parsing")80 }...

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parseResource

Using AI Code Generation

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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 fmt.Println(err)7 }8 ast.Inspect(f, parseResource)9}10func parseResource(n ast.Node) bool {11 if n == nil {12 }13 switch x := n.(type) {14 if x.Name.Name == "Resource" {15 fmt.Println(x.Name.Name)16 }17 for _, field := range x.Fields.List {

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parseResource

Using AI Code Generation

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1import (2func main() {3 f, err := parser.ParseFile(fset, "1.go", nil, 0)4 if err != nil {5 fmt.Println(err)6 }7 ast.Print(fset, f)8}9./2.go:18: cannot use astObj1 (type ast.AST) as type ast.AST in assignment10Is there any way to assign the result of ast.ParseResource() to a variable of type ast.Node() or ast.AST()?11import (12func main() {13 http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {14 fmt.Fprintf(w, "Hello, %q", html.EscapeString(r.URL.Path))15 })16 http.ListenAndServe(":8080", nil)17}18fset := token.NewFileSet()19astFile, err := parser.ParseFile(fset, "main.go", nil, parser.ParseComments)20import (21func main() {22 f, err := parser.ParseFile(fset, "1.go", nil, 0)23 if err != nil {24 fmt.Println(err)25 }26 ast.Print(fset, f)27}

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parseResource

Using AI Code Generation

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1ast := &ast{}2ast.parseResource("test.json")3ast := &ast{}4ast.parseResource("test.json")5ast := &ast{}6ast.parseResource("test.json")7ast := &ast{}8ast.parseResource("test.json")9ast := &ast{}10ast.parseResource("test.json")11ast := &ast{}12ast.parseResource("test.json")13ast := &ast{}14ast.parseResource("test.json")15ast := &ast{}16ast.parseResource("test.json")17ast := &ast{}18ast.parseResource("test.json")19ast := &ast{}20ast.parseResource("test.json")21ast := &ast{}22ast.parseResource("test.json")23ast := &ast{}24ast.parseResource("test.json")25ast := &ast{}26ast.parseResource("test.json")27ast := &ast{}28ast.parseResource("test.json")29ast := &ast{}30ast.parseResource("test.json")31ast := &ast{}32ast.parseResource("test.json")33ast := &ast{}34ast.parseResource("test.json")

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parseResource

Using AI Code Generation

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1import (2func main() {3 data := []byte(`4 resource "aws_instance" "web" {5 }6 file := &ast.File{7 Node: ast.Node{8 },9 }10 ast.ParseResource(data, file)11 fmt.Println(file)12}13&{FILE [{RESOURCE aws_instance.web [{ASSIGN {=} {IDENT ami} {STRING 21f78e11}} {ASSIGN {=} {IDENT instance_type} {STRING t2.micro}}]}]}

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parseResource

Using AI Code Generation

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1import (2type ast struct {3}4func (a ast) parseResource() {5 fmt.Println("method parseResource called")6}7func main() {8 a := ast{}9 reflect.ValueOf(a).MethodByName("parseResource").Call([]reflect.Value{reflect.ValueOf("hello"), reflect.ValueOf("world")})10}11import (12type ast struct {13}14func (a ast) parseResource(name string, age int) {15 fmt.Println("method parseResource called with arguments:", name, age)16}17func main() {18 a := ast{}19 reflect.ValueOf(a).MethodByName("parseResource").Call([]reflect.Value{reflect.ValueOf("hello"), reflect.ValueOf(18)})20}

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