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How to use bitfieldFields method of compiler Package

Best Syzkaller code snippet using compiler.bitfieldFields

gen.go

Source:gen.go

...368		panic(fmt.Sprintf("rounddown(%v)", a))369	}370	return v & ^(a - 1)371}372func bitfieldFields(t0 prog.Type) (*uint64, *uint64, *uint64) {373	switch t := t0.(type) {374	case *prog.IntType:375		return &t.TypeSize, &t.BitfieldOff, &t.BitfieldUnitOff376	case *prog.ConstType:377		return &t.TypeSize, &t.BitfieldOff, &t.BitfieldUnitOff378	case *prog.LenType:379		return &t.TypeSize, &t.BitfieldOff, &t.BitfieldUnitOff380	case *prog.FlagsType:381		return &t.TypeSize, &t.BitfieldOff, &t.BitfieldUnitOff382	case *prog.ProcType:383		return &t.TypeSize, &t.BitfieldOff, &t.BitfieldUnitOff384	default:385		panic(fmt.Sprintf("type %#v can't be a bitfield", t))386	}387}388func setBitfieldTypeSize(t prog.Type, v uint64) {389	p, _, _ := bitfieldFields(t)390	*p = v391}392func setBitfieldOffset(t prog.Type, v uint64) {393	_, p, _ := bitfieldFields(t)394	*p = v395}396func setBitfieldUnitOffset(t prog.Type, v uint64) {397	_, _, p := bitfieldFields(t)398	*p = v399}400func genPad(size uint64) prog.Field {401	return prog.Field{402		Type: &prog.ConstType{403			IntTypeCommon: genIntCommon(genCommon("pad", size, false), 0, false),404			IsPad:         true,405		},406	}407}408func (comp *compiler) genFieldArray(fields []*ast.Field, argSizes []uint64) []prog.Field {409	var res []prog.Field410	for i, f := range fields {411		res = append(res, comp.genField(f, argSizes[i]))...

bitfieldFields

Using AI Code Generation

1import (2func main() {3	fset := token.NewFileSet()4	f, err := parser.ParseFile(fset, "2.go", nil, parser.ParseComments)5	if err != nil {6		log.Fatal(err)7	}8	for _, d := range f.Decls {9		gd, ok := d.(*ast.GenDecl)10		if !ok {11		}12		for _, s := range gd.Specs {13			ts, ok := s.(*ast.TypeSpec)14			if !ok {15			}16			st, ok := ts.Type.(*ast.StructType)17			if !ok {18			}19			for _, f := range st.Fields.List {20				if len(f.Names) == 0 {21				}22				fmt.Println(f.Names[0].Name)23			}24		}25	}26}

bitfieldFields

Using AI Code Generation

1import (2type S struct {3}4func main() {5    s := S{1, 2}6    v := reflect.ValueOf(&s).Elem()7    fmt.Println(v.NumField())8    fmt.Println(v.Field(0).CanSet())9    fmt.Println(v.Field(1).CanSet())10    fmt.Println(v.Field(0).CanInterface())11    fmt.Println(v.Field(1).CanInterface())12    v.Field(0).SetInt(100)13    v.Field(1).SetInt(200)14    fmt.Println(s)15}16{100 200}17In the above code, we have created a struct named S with two fields (A and B) and then created a variable of type S and initialized it with values. After that, we have created a reflect.Value type variable v and initialized it with the address of the variable s using Elem() method. Then we have printed the number of fields in the struct using NumField() method. Then we have printed whether the first field can be set using CanSet() method. Then we have printed whether the second field can be set using CanSet() method. Then we have printed whether the first field can be interfaced using CanInterface() method. Then we have printed whether the second field can be interfaced using CanInterface() method. Then we have set the first field to

bitfieldFields

Using AI Code Generation

1import (2type compiler struct {3}4func (c *compiler) bitfieldFields(t *types.Struct) []int {5	for i := 0; i < t.NumFields(); i++ {6		f := t.Field(i)7		if f.Anonymous() {8			if st, ok := f.Type().Underlying().(*types.Struct); ok {9				fields = append(fields, c.bitfieldFields(st)...)10			}11		}12		if tag := reflect.StructTag(f.Tag()).Get("bitfield"); tag != "" {13			fields = append(fields, i)14		}15	}16}17func main() {18	fset := token.NewFileSet()19	f, err := parser.ParseFile(fset, "2.go", nil, parser.ParseComments)20	if err != nil {21		log.Fatal(err)22	}23	conf := types.Config{Importer: types.Default()}24	pkg, err := conf.Check("example", fset, []*ast.File{f}, nil)25	if err != nil {26		log.Fatal(err)27	}28	c := &compiler{fset: fset, pkg: pkg}29	iface, ok := pkg.Scope().Lookup("I").Type().Underlying().(*types.Interface)30	if !ok {31		log.Fatal("I is not an interface")32	}33	for i := 0; i < iface.NumMethods(); i++ {34		m := iface.Method(i)35		sig, ok := m.Type().(*types.Signature)36		if !ok {37			log.Fatal("I is not an interface")38		}39		if sig.Recv() == nil {40			log.Fatal("I is not an interface")41		}42		t, ok := sig.Recv().Type().Underlying().(*types.Struct)43		if !ok {44			log.Fatal("I is not an interface")45		}46		fmt.Printf("%s: %v47", m.Name(), c.bitfieldFields(t))48	}49}

bitfieldFields

Using AI Code Generation

1import (2func main() {3	fset := token.NewFileSet()4	f, err := parser.ParseFile(fset, "2.go", nil, 0)5	if err != nil {6		panic(err)7	}8	conf.CreateFromFilenames("main", "2.go")

bitfieldFields

Using AI Code Generation

1import "fmt"2type compiler struct {3}4func main() {5    c := compiler{6        bitfieldFields: []int{3, 4},7    }8    fmt.Println(c.bitfieldFields)9}

bitfieldFields

Using AI Code Generation

1import (2type myStruct struct {3}4func main() {5    t := reflect.TypeOf(s)6    fmt.Println(t, "has", t.NumField(), "fields")7    for i := 0; i < t.NumField(); i++ {8        f := t.Field(i)9        fmt.Println("Field", i, "Type", f.Type, "Offset", f.Offset, "BitField", f.BitField)10    }11}12import (13type myStruct struct {14}15func main() {16    t := reflect.TypeOf(s)17    fmt.Println(t, "has", t.NumField(), "fields")18    for i := 0; i < t.NumField(); i++ {19        f := t.Field(i)20        fmt.Println("Field", i, "Type", f.Type, "Offset", f.Offset, "BitField", f.BitField)21        if f.BitField {22            bf := t.(*reflect.rtype).compiler.bitfieldFields(f.Offset)23            fmt.Println("BitField", bf)24        }25    }26}

bitfieldFields

Using AI Code Generation

1import (2func main() {3	c := prog.MakeTargetCompiler("test", prog.Default)4	s := &prog.StructType{5		Fields: []prog.FieldType{6			&prog.ConstType{TypeCommon: prog.TypeCommon{TypeName: "const", IsOptional: true}, Val: 1, Vals: []uint64{1}, BitMask: 1},7			&prog.ConstType{TypeCommon: prog.TypeCommon{TypeName: "const", IsOptional: true}, Val: 1, Vals: []uint64{1}, BitMask: 0},8			&prog.ConstType{TypeCommon: prog.TypeCommon{TypeName: "const", IsOptional: true}, Val: 1, Vals: []uint64{1}, BitMask: 1},9			&prog.ConstType{TypeCommon: prog.TypeCommon{TypeName: "const", IsOptional: true}, Val: 1, Vals: []uint64{1}, BitMask: 0},10			&prog.ConstType{TypeCommon: prog.TypeCommon{TypeName: "const", IsOptional: true}, Val: 1, Vals: []uint64{1}, BitMask: 1},11		},12	}13	bf := c.bitfieldFields(s)14	fmt.Printf("%v", bf)15}16import (17func main() {18	c := prog.MakeTargetCompiler("test", prog.Default)19	s := &prog.StructType{20		Fields: []prog.FieldType{21			&prog.ConstType{TypeCommon: prog.TypeCommon{TypeName: "const", IsOptional:

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