How to use collectUsedType method of compiler Package

Best Syzkaller code snippet using compiler.collectUsedType

check.go

Source:check.go

...455			if !all && n.NR == ^uint64(0) {456				break457			}458			for _, arg := range n.Args {459				comp.collectUsedType(structs, flags, strflags, arg.Type, true)460			}461			if n.Ret != nil {462				comp.collectUsedType(structs, flags, strflags, n.Ret, true)463			}464		}465	}466	return467}468func (comp *compiler) collectUsedType(structs, flags, strflags map[string]bool, t *ast.Type, isArg bool) {469	desc := comp.getTypeDesc(t)470	if desc == typeResource {471		r := comp.resources[t.Ident]472		for r != nil && !structs[r.Name.Name] {473			structs[r.Name.Name] = true474			r = comp.resources[r.Base.Ident]475		}476		return477	}478	if desc == typeStruct {479		if structs[t.Ident] {480			return481		}482		structs[t.Ident] = true483		s := comp.structs[t.Ident]484		for _, fld := range s.Fields {485			comp.collectUsedType(structs, flags, strflags, fld.Type, false)486		}487		return488	}489	if desc == typeFlags {490		flags[t.Args[0].Ident] = true491		return492	}493	if desc == typeString {494		if len(t.Args) != 0 && t.Args[0].Ident != "" {495			strflags[t.Args[0].Ident] = true496		}497		return498	}499	_, args, _ := comp.getArgsBase(t, isArg)500	for i, arg := range args {501		if desc.Args[i].Type == typeArgType {502			comp.collectUsedType(structs, flags, strflags, arg, desc.Args[i].IsArg)503		}504	}505}506func (comp *compiler) checkUnused() {507	for _, n := range comp.collectUnused() {508		pos, typ, name := n.Info()509		comp.error(pos, fmt.Sprintf("unused %v %v", typ, name))510	}511}512type structDir struct {513	Struct string514	Dir    prog.Dir515}516func (comp *compiler) checkConstructors() {...

collectUsedType

Using AI Code Generation

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

collectUsedType

Using AI Code Generation

1import (2func main() {3	if len(os.Args) != 2 {4		log.Fatal("usage: go run 2.go <package>")5	}6	fset := token.NewFileSet()7	pkgs, err := parser.ParseDir(fset, packageName, nil, parser.AllErrors)8	if err != nil {9		log.Fatal(err)10	}11	if len(pkgs) != 1 {12		log.Fatal("more than one package in directory")13	}14	for _, pkg := range pkgs {15		for _, file := range pkg.Files {16			files = append(files, file)17		}18	}19	conf := types.Config{Importer: importer{fset}}20	info := &types.Info{21		Defs: make(map[*ast.Ident]types.Object),22	}23	_, err = conf.Check(packageName, fset, files, info)24	if err != nil {25		log.Fatal(err)26	}27	usedTypes := make(map[string]bool)28	for id, obj := range info.Defs {29		if obj == nil || obj.Pkg() == nil {30		}31		if obj, ok := obj.(*types.TypeName); ok {32			usedTypes[obj.String()] = true33		}34	}35	for id, obj := range info.Uses {36		if obj == nil || obj.Pkg() == nil {37		}38		if obj, ok := obj.(*types.TypeName); ok {39			usedTypes[obj.String()] = true40		}41	}42	for typ := range usedTypes {43		fmt.Println(typ)44	}45}46type importer struct {47}48func (i importer) Import(path string) (*types.Package, error) {49	if path == "C" {50		return types.NewPackage("C", "C"), nil51	}52	pkg, err := parser.ParseDir(i.fset, path, nil, parser.ParseComments)53	if err != nil {54	}55	if len(pkg) == 0 {56		return nil, fmt.Errorf("no buildable Go source files in %s", path)57	}58	for _, p := range pkg {

collectUsedType

Using AI Code Generation

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

collectUsedType

Using AI Code Generation

1import (2func main() {3	f, err := parser.ParseFile(fset, "2.go", nil, parser.ParseComments)4	if err != nil {5		fmt.Println(err)6	}7	for _, s := range f.Imports {8		fmt.Println(s.Path.Value)9	}10	for _, d := range f.Decls {11		gd, ok := d.(*ast.GenDecl)12		if !ok {13		}14		for _, spec := range gd.Specs {15			ts, ok := spec.(*ast.TypeSpec)16			if !ok {17			}18			fmt.Println(ts.Name.Name)19		}20	}21	for _, d := range f.Decls {22		fd, ok := d.(*ast.FuncDecl)23		if !ok {24		}25		fmt.Println(fd.Name.Name)

collectUsedType

Using AI Code Generation

1import (2func main() {3    fset := token.NewFileSet()4    f, err := parser.ParseFile(fset, "2.go", nil, parser.ImportsOnly)5    if err != nil {6        log.Fatal(err)7    }8    conf := types.Config{9        Error: func(error) {},10    }11    info := &types.Info{12        Uses: make(map[*ast.Ident]types.Object),13    }14    _, err = conf.Check("cmd/gotype", fset, []*ast.File{f}, info)15    if err != nil {16        log.Fatal(err)17    }18    for id, obj := range info.Uses {19        fmt.Printf("%s: %s20", fset.Position(id.Pos()), obj.Type())21    }22}232.go:7:2: import "go/parser"242.go:8:2: import "go/token"

collectUsedType

Using AI Code Generation

1import (2func main() {3	fset := token.NewFileSet()4	c := &astutil.Compiler{}5	c.CollectUsedTypes(fset, "1.go")6	fmt.Println(c.UsedTypes)7}8import (9func main() {10	fset := token.NewFileSet()11	c := &astutil.Compiler{}12	c.CollectUsedTypes(fset, "1.go")13	fmt.Println(c.UsedTypes)14}15I have seen a lot of questions on StackOverflow asking how to get the used types of a Go file. There are a lot of answers and they are all different. I have tried to implement a way to get the used types in a Go file. I have written a compiler class that has a CollectUsedTypes method. This method takes a file set and a file name as input and it collects the used types in the file. The used types are stored in a map. The map has the name of the type as key and a boolean value as value. The boolean value is true if the type is used and false if the type is not used. The CollectUsedTypes method is called recursively for all the imported packages. The used types are stored in the UsedTypes attribute of the compiler class. The code is available on GitHub. In the file 1.go, the main function calls the CollectUsedTypes method of the compiler class. The CollectUsedTypes method takes the file set and the file name as input. The CollectUsedTypes method is called recursively for all the imported packages. The used types are stored in the UsedTypes attribute of the compiler class. In the file 2.go, the main function calls the CollectUsedTypes method of the compiler class. The CollectUsedTypes method

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