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How to use checkTypeKind method of compiler Package

Best Syzkaller code snippet using compiler.checkTypeKind

check.go

Source:check.go

...421		comp.parseStructAttrs(n)422	}423}424func (comp *compiler) checkType(t *ast.Type, isArg, isRet, isStruct, isResourceBase bool) {425	if unexpected, _, ok := checkTypeKind(t, kindIdent); !ok {426		comp.error(t.Pos, "unexpected %v, expect type", unexpected)427		return428	}429	desc := comp.getTypeDesc(t)430	if desc == nil {431		comp.error(t.Pos, "unknown type %v", t.Ident)432		return433	}434	if t.HasColon {435		if !desc.AllowColon {436			comp.error(t.Pos2, "unexpected ':'")437			return438		}439		if !isStruct {440			comp.error(t.Pos2, "unexpected ':', only struct fields can be bitfields")441			return442		}443	}444	if isRet && (!desc.CanBeArg || desc.CantBeRet) {445		comp.error(t.Pos, "%v can't be syscall return", t.Ident)446		return447	}448	if isArg && !desc.CanBeArg {449		comp.error(t.Pos, "%v can't be syscall argument", t.Ident)450		return451	}452	if isResourceBase && !desc.ResourceBase {453		comp.error(t.Pos, "%v can't be resource base (int types can)", t.Ident)454		return455	}456	args, opt := removeOpt(t)457	if opt && (desc.CantBeOpt || isResourceBase) {458		what := "resource base"459		if desc.CantBeOpt {460			what = t.Ident461		}462		pos := t.Args[len(t.Args)-1].Pos463		comp.error(pos, "%v can't be marked as opt", what)464		return465	}466	addArgs := 0467	needBase := !isArg && desc.NeedBase468	if needBase {469		addArgs++ // last arg must be base type, e.g. const[0, int32]470	}471	if len(args) > len(desc.Args)+addArgs || len(args) < len(desc.Args)-desc.OptArgs+addArgs {472		comp.error(t.Pos, "wrong number of arguments for type %v, expect %v",473			t.Ident, expectedTypeArgs(desc, needBase))474		return475	}476	if needBase {477		base := args[len(args)-1]478		args = args[:len(args)-1]479		comp.checkTypeArg(t, base, typeArgBase)480	}481	err0 := comp.errors482	for i, arg := range args {483		if desc.Args[i].Type == typeArgType {484			comp.checkType(arg, false, isRet, false, false)485		} else {486			comp.checkTypeArg(t, arg, desc.Args[i])487		}488	}489	if err0 != comp.errors {490		return491	}492	if desc.Check != nil {493		_, args, base := comp.getArgsBase(t, "", prog.DirIn, isArg)494		desc.Check(comp, t, args, base)495	}496}497func (comp *compiler) checkTypeArg(t, arg *ast.Type, argDesc namedArg) {498	desc := argDesc.Type499	if len(desc.Names) != 0 {500		if unexpected, _, ok := checkTypeKind(arg, kindIdent); !ok {501			comp.error(arg.Pos, "unexpected %v for %v argument of %v type, expect %+v",502				unexpected, argDesc.Name, t.Ident, desc.Names)503			return504		}505		if !arrayContains(desc.Names, arg.Ident) {506			comp.error(arg.Pos, "unexpected value %v for %v argument of %v type, expect %+v",507				arg.Ident, argDesc.Name, t.Ident, desc.Names)508			return509		}510	} else {511		if unexpected, expect, ok := checkTypeKind(arg, desc.Kind); !ok {512			comp.error(arg.Pos, "unexpected %v for %v argument of %v type, expect %v",513				unexpected, argDesc.Name, t.Ident, expect)514			return515		}516	}517	if !desc.AllowColon && arg.HasColon {518		comp.error(arg.Pos2, "unexpected ':'")519		return520	}521	if desc.Check != nil {522		desc.Check(comp, arg)523	}524}525func expectedTypeArgs(desc *typeDesc, needBase bool) string {526	expect := ""527	for i, arg := range desc.Args {528		if expect != "" {529			expect += ", "530		}531		opt := i >= len(desc.Args)-desc.OptArgs532		if opt {533			expect += "["534		}535		expect += arg.Name536		if opt {537			expect += "]"538		}539	}540	if needBase {541		if expect != "" {542			expect += ", "543		}544		expect += typeArgBase.Name545	}546	if !desc.CantBeOpt {547		if expect != "" {548			expect += ", "549		}550		expect += "[opt]"551	}552	if expect == "" {553		expect = "no arguments"554	}555	return expect556}557func checkTypeKind(t *ast.Type, kind int) (unexpected string, expect string, ok bool) {558	switch {559	case kind == kindAny:560		ok = true561	case t.String != "":562		ok = kind == kindString563		if !ok {564			unexpected = fmt.Sprintf("string %q", t.String)565		}566	case t.Ident != "":567		ok = kind == kindIdent568		if !ok {569			unexpected = fmt.Sprintf("identifier %v", t.Ident)570		}571	default:...

checkTypeKind

Using AI Code Generation

1import (2func main() {3	fset := token.NewFileSet()4	f, err := parser.ParseFile(fset, "1.go", nil, 0)5	if err != nil {6		log.Fatal(err)7	}8	conf := types.Config{Importer: importer{fset}}9	info := &types.Info{10		Types: make(map[ast.Expr]types.TypeAndValue),11		Defs:  make(map[*ast.Ident]types.Object),12		Uses:  make(map[*ast.Ident]types.Object),13	}14	_, err = conf.Check(f.Name.Name, fset, []*ast.File{f}, info)15	if err != nil {16		log.Fatal(err)17	}18	for id, obj := range info.Defs {19		if obj != nil {20			fmt.Printf("%v: %v, %v21", id.Name, obj.Type(), obj)22		}23	}24	for id, obj := range info.Uses {25		if obj != nil {26			fmt.Printf("%v: %v, %v27", id.Name, obj.Type(), obj)28		}29	}30	for id, obj := range info.Types {31		if obj.Type != nil {32			fmt.Printf("%v: %v, %v33		}34	}35	for id, obj := range info.Implicits {36		if obj != nil {37			fmt.Printf("%v: %v, %v38", id, obj.Type(), obj)39		}40	}41}42type importer struct {43}44func (imp importer) Import(path string) (*types.Package, error) {45	fset := token.NewFileSet()46	pkgs, err := parser.ParseDir(fset, path, nil, 0)47	if err != nil {48	}49	if len(pkgs) != 1 {50		return nil, fmt.Errorf("

checkTypeKind

Using AI Code Generation

1import (2func main() {3import "fmt"4func main() {5	fmt.Println("hello, world")6}7	f, err := parser.ParseFile(fset, "hello.go", src, parser.ImportsOnly)8	if err != nil {9	}10	fmt.Println("Imports:")11	for _, s := range f.Imports {12		fmt.Println(s.Path.Value)13	}14}

checkTypeKind

Using AI Code Generation

1import (2func main() {3	compiler := newCompiler()4	compiler.parseFile("1.go")5	compiler.checkTypeKind("x")6}7type compiler struct {8}9func newCompiler() *compiler {10	return &compiler{11		fset: token.NewFileSet(),12	}13}14func (c *compiler) parseFile(name string) {15	f, err := parser.ParseFile(c.fset, name, nil, 0)16	if err != nil {17		log.Fatal(err)18	}19	pkg := types.NewPackage(name, name)20	config := types.Config{Importer: importer{c.fset}}21	info := &types.Info{22		Defs: make(map[*ast.Ident]types.Object),23	}24	_, err = config.Check(name, c.fset, []*ast.File{f}, info)25	if err != nil {26		log.Fatal(err)27	}28}29func (c *compiler) checkTypeKind(name string) {30	obj := c.info.Defs[c.f.Scope.Lookup(name)]31	if obj == nil {32		log.Fatalf("object not found for %s", name)33	}34	switch obj.Type().Underlying().(type) {35		fmt.Printf("%s is a basic type36		fmt.Printf("%s is a slice type37		fmt.Printf("%s is a struct type38		fmt.Printf("%s is an interface type39		fmt.Printf("%s is a channel type40		fmt.Printf("unknown type41	}42}

checkTypeKind

Using AI Code Generation

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

checkTypeKind

Using AI Code Generation

1import "fmt"2func main() {3    var a [2]int = [2]int{1, 2}4    var c chan int = make(chan int)5    var m map[string]int = map[string]int{"one": 1}6    var fun func() = func() {}7    var st struct{}8    var intf interface{}9    fmt.Println(checkTypeKind(i))10    fmt.Println(checkTypeKind(f))11    fmt.Println(checkTypeKind(s))12    fmt.Println(checkTypeKind(b))13    fmt.Println(checkTypeKind(a))14    fmt.Println(checkTypeKind(c))15    fmt.Println(checkTypeKind(m))16    fmt.Println(checkTypeKind(p))17    fmt.Println(checkTypeKind(fun))18    fmt.Println(checkTypeKind(st))19    fmt.Println(checkTypeKind(intf))20}21func checkTypeKind(i interface{}) string {22    switch i.(type) {23    case func():24        return "func()"25    case struct{}:26        return "struct{}"27    case interface{}:28        return "interface{}"29    }30}31func()32struct{}33interface{}34import (35func main() {36    var a [2]int = [2]int{1, 2}37    var c chan int = make(chan int)38    var m map[string]int = map[string]int{"one": 1}

checkTypeKind

Using AI Code Generation

1import "fmt"2type Student struct {3}4type Employee struct {5}6func main() {7fmt.Println("Student Type: ", checkTypeKind(s))8fmt.Println("Employee Type: ", checkTypeKind(e))9}10func checkTypeKind(i interface{}) string {11return fmt.Sprintf("%T", i)12}13import "fmt"14func main() {15var i interface{}16fmt.Println("Value:", i, "Type:", fmt.Sprintf("%T", i))17fmt.Println("Value:", i, "Type:", fmt.Sprintf("%T", i))18fmt.Println("Value:", i, "Type:", fmt.Sprintf("%T", i))19}20import "fmt"21type Shape interface {22area() float6423perimeter() float6424}25type Rectangle struct {26}27type Circle struct {28}29func (r Rectangle) area() float64 {30}31func (r Rectangle) perimeter() float64 {32return 2 * (r.length + r.width)33}34func (c Circle) area()

checkTypeKind

Using AI Code Generation

1func main() {2    fmt.Println("Type of x is", reflect.TypeOf(x))3    fmt.Println("Kind of x is", reflect.ValueOf(x).Kind())4    fmt.Println("Type of x is", reflect.TypeOf(x).Kind())5    fmt.Println("Kind of x is", reflect.ValueOf(x).Type())6    fmt.Println("Kind of x is", reflect.TypeOf(x).Type())7}8func main() {9    fmt.Println("Type of x is", reflect.TypeOf(x))10    fmt.Println("Kind of x is", reflect.ValueOf(x).Kind())11}12func main() {13    type person struct {14    }15    p := person{name: "John", age: 22}16    fmt.Println("Type of p is", reflect.TypeOf(p))17    fmt.Println("Kind of p is", reflect.ValueOf(p).Kind())18}19func main() {20    fmt.Println("Type of x is", reflect.TypeOf(x))21    fmt.Println("Kind of x

checkTypeKind

Using AI Code Generation

1import "fmt"2type Student struct {3}4func main() {5fmt.Println("s1 is of type: ", checkTypeKind(s1))6}7func checkTypeKind(i interface{}) string {8switch i.(type) {9}10}

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