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How to use Parse method of kconfig Package

Best Syzkaller code snippet using kconfig.Parse

kconfig.go

Source:kconfig.go

...93		return p.text94	}95	return ""96}97type kconfigParser struct {98	*parser99	target    *targets.Target100	includes  []*parser101	stack     []*Menu102	cur       *Menu103	baseDir   string104	helpIdent int105}106func Parse(target *targets.Target, file string) (*KConfig, error) {107	data, err := ioutil.ReadFile(file)108	if err != nil {109		return nil, fmt.Errorf("failed to open Kconfig file %v: %v", file, err)110	}111	return ParseData(target, data, file)112}113func ParseData(target *targets.Target, data []byte, file string) (*KConfig, error) {114	kp := &kconfigParser{115		parser:  newParser(data, file),116		target:  target,117		baseDir: filepath.Dir(file),118	}119	kp.parseFile()120	if kp.err != nil {121		return nil, kp.err122	}123	if len(kp.stack) == 0 {124		return nil, fmt.Errorf("no mainmenu in config")125	}126	root := kp.stack[0]127	kconf := &KConfig{128		Root:    root,129		Configs: make(map[string]*Menu),130	}131	kconf.walk(root, nil, nil)132	return kconf, nil133}134func (kconf *KConfig) walk(m *Menu, dependsOn, visibleIf expr) {135	m.kconf = kconf136	m.dependsOn = exprAnd(dependsOn, m.dependsOn)137	m.visibleIf = exprAnd(visibleIf, m.visibleIf)138	if m.Kind == MenuConfig {139		kconf.Configs[m.Name] = m140	}141	for _, elem := range m.Elems {142		kconf.walk(elem, m.dependsOn, m.visibleIf)143	}144}145func (kp *kconfigParser) parseFile() {146	for kp.nextLine() {147		kp.parseLine()148		if kp.TryConsume("#") {149			_ = kp.ConsumeLine()150		}151	}152	kp.endCurrent()153}154func (kp *kconfigParser) parseLine() {155	if kp.eol() {156		return157	}158	if kp.helpIdent != 0 {159		if kp.identLevel() >= kp.helpIdent {160			_ = kp.ConsumeLine()161			return162		}163		kp.helpIdent = 0164	}165	if kp.TryConsume("#") {166		_ = kp.ConsumeLine()167		return168	}169	if kp.TryConsume("$") {170		_ = kp.Shell()171		return172	}173	ident := kp.Ident()174	if kp.TryConsume("=") || kp.TryConsume(":=") {175		// Macro definition, see:176		// https://www.kernel.org/doc/html/latest/kbuild/kconfig-macro-language.html177		// We don't use this for anything now.178		kp.ConsumeLine()179		return180	}181	kp.parseMenu(ident)182}183func (kp *kconfigParser) parseMenu(cmd string) {184	switch cmd {185	case "source":186		file, ok := kp.TryQuotedString()187		if !ok {188			file = kp.ConsumeLine()189		}190		kp.includeSource(file)191	case "mainmenu":192		kp.pushCurrent(&Menu{193			Kind:    MenuConfig,194			prompts: []prompt{{text: kp.QuotedString()}},195		})196	case "comment":197		kp.newCurrent(&Menu{198			Kind:    MenuComment,199			prompts: []prompt{{text: kp.QuotedString()}},200		})201	case "menu":202		kp.pushCurrent(&Menu{203			Kind:    MenuGroup,204			prompts: []prompt{{text: kp.QuotedString()}},205		})206	case "if":207		kp.pushCurrent(&Menu{208			Kind:      MenuGroup,209			visibleIf: kp.parseExpr(),210		})211	case "choice":212		kp.pushCurrent(&Menu{213			Kind: MenuChoice,214		})215	case "endmenu", "endif", "endchoice":216		kp.popCurrent()217	case "config", "menuconfig":218		kp.newCurrent(&Menu{219			Kind: MenuConfig,220			Name: kp.Ident(),221		})222	default:223		kp.parseConfigType(cmd)224	}225}226func (kp *kconfigParser) parseConfigType(typ string) {227	cur := kp.current()228	switch typ {229	case "tristate":230		cur.Type = TypeTristate231		kp.tryParsePrompt()232	case "def_tristate":233		cur.Type = TypeTristate234		kp.parseDefaultValue()235	case "bool":236		cur.Type = TypeBool237		kp.tryParsePrompt()238	case "def_bool":239		cur.Type = TypeBool240		kp.parseDefaultValue()241	case "int":242		cur.Type = TypeInt243		kp.tryParsePrompt()244	case "def_int":245		cur.Type = TypeInt246		kp.parseDefaultValue()247	case "hex":248		cur.Type = TypeHex249		kp.tryParsePrompt()250	case "def_hex":251		cur.Type = TypeHex252		kp.parseDefaultValue()253	case "string":254		cur.Type = TypeString255		kp.tryParsePrompt()256	case "def_string":257		cur.Type = TypeString258		kp.parseDefaultValue()259	default:260		kp.parseProperty(typ)261	}262}263func (kp *kconfigParser) parseProperty(prop string) {264	cur := kp.current()265	switch prop {266	case "prompt":267		kp.tryParsePrompt()268	case "depends":269		kp.MustConsume("on")270		cur.dependsOn = exprAnd(cur.dependsOn, kp.parseExpr())271	case "visible":272		kp.MustConsume("if")273		cur.visibleIf = exprAnd(cur.visibleIf, kp.parseExpr())274	case "select", "imply":275		_ = kp.Ident()276		if kp.TryConsume("if") {277			_ = kp.parseExpr()278		}279	case "option":280		// It can be 'option foo', or 'option bar="BAZ"'.281		kp.ConsumeLine()282	case "modules":283	case "optional":284	case "default":285		kp.parseDefaultValue()286	case "range":287		_, _ = kp.parseExpr(), kp.parseExpr() // from, to288		if kp.TryConsume("if") {289			_ = kp.parseExpr()290		}291	case "help", "---help---":292		// Help rules are tricky: end of help is identified by smaller indentation level293		// as would be rendered on a terminal with 8-column tabs setup, minus empty lines.294		for kp.nextLine() {295			if kp.eol() {296				continue297			}298			kp.helpIdent = kp.identLevel()299			kp.ConsumeLine()300			break301		}302	default:303		kp.failf("unknown line")304	}305}306func (kp *kconfigParser) includeSource(file string) {307	kp.newCurrent(nil)308	file = kp.expandString(file)309	file = filepath.Join(kp.baseDir, file)310	data, err := ioutil.ReadFile(file)311	if err != nil {312		kp.failf("%v", err)313		return314	}315	kp.includes = append(kp.includes, kp.parser)316	kp.parser = newParser(data, file)317	kp.parseFile()318	err = kp.err319	kp.parser = kp.includes[len(kp.includes)-1]320	kp.includes = kp.includes[:len(kp.includes)-1]321	if kp.err == nil {322		kp.err = err323	}324}325func (kp *kconfigParser) pushCurrent(m *Menu) {326	kp.endCurrent()327	kp.cur = m328	kp.stack = append(kp.stack, m)329}330func (kp *kconfigParser) popCurrent() {331	kp.endCurrent()332	if len(kp.stack) < 2 {333		kp.failf("unbalanced endmenu")334		return335	}336	last := kp.stack[len(kp.stack)-1]337	kp.stack = kp.stack[:len(kp.stack)-1]338	top := kp.stack[len(kp.stack)-1]339	last.Parent = top340	top.Elems = append(top.Elems, last)341}342func (kp *kconfigParser) newCurrent(m *Menu) {343	kp.endCurrent()344	kp.cur = m345}346func (kp *kconfigParser) current() *Menu {347	if kp.cur == nil {348		kp.failf("config property outside of config")349		return &Menu{}350	}351	return kp.cur352}353func (kp *kconfigParser) endCurrent() {354	if kp.cur == nil {355		return356	}357	if len(kp.stack) == 0 {358		kp.failf("unbalanced endmenu")359		return360	}361	top := kp.stack[len(kp.stack)-1]362	if top != kp.cur {363		kp.cur.Parent = top364		top.Elems = append(top.Elems, kp.cur)365	}366	kp.cur = nil367}368func (kp *kconfigParser) tryParsePrompt() {369	if str, ok := kp.TryQuotedString(); ok {370		prompt := prompt{371			text: str,372		}373		if kp.TryConsume("if") {374			prompt.cond = kp.parseExpr()375		}376		kp.current().prompts = append(kp.current().prompts, prompt)377	}378}379func (kp *kconfigParser) parseDefaultValue() {380	def := defaultVal{val: kp.parseExpr()}381	if kp.TryConsume("if") {382		def.cond = kp.parseExpr()383	}384	kp.current().defaults = append(kp.current().defaults, def)385}386func (kp *kconfigParser) expandString(str string) string {387	str = strings.Replace(str, "$(SRCARCH)", kp.target.KernelHeaderArch, -1)388	str = strings.Replace(str, "$SRCARCH", kp.target.KernelHeaderArch, -1)389	return str390}...

Parse

Using AI Code Generation

1import (2func main() {3	config := kconfig.New()4	err := config.Parse("config.json")5	if err != nil {6		fmt.Println(err)7	}8	fmt.Println(config.Get("name"))9	fmt.Println(config.Get("age"))10	fmt.Println(config.Get("address"))11}12import (13func main() {14	config := kconfig.New()15	file, _ := os.Open("config.json")16	err := config.ParseReader(file)17	if err != nil {18		fmt.Println(err)19	}20	fmt.Println(config.Get("name"))21	fmt.Println(config.Get("age"))22	fmt.Println(config.Get("address"))23}24import (25func main() {26	config := kconfig.New()27	err := config.ParseFile("config.json")28	if err != nil {29		fmt.Println(err)30	}31	fmt.Println(config.Get("name"))32	fmt.Println(config.Get("age"))33	fmt.Println(config.Get("address"))34}35import (36func main() {37	config := kconfig.New()38	data, _ := ioutil.ReadFile("config.json")39	err := config.ParseBytes(data)40	if err != nil {41		fmt.Println(err)42	}43	fmt.Println(config.Get("name"))44	fmt.Println(config.Get("age"))45	fmt.Println(config.Get("address"))46}

Parse

Using AI Code Generation

1import (2func main() {3	gspt.SetProcTitle("kconfig")4	app := cli.NewApp()5	app.Action = func(c *cli.Context) error {6		fmt.Println("kconfig")7	}8	app.RunAndExitOnError()9}10import (11func main() {12	gspt.SetProcTitle("kconfig")13	app := cli.NewApp()14	app.Action = func(c *cli.Context) error {15		fmt.Println("kconfig")16	}17	app.RunAndExitOnError()18}19import (20func main() {21	gspt.SetProcTitle("kconfig")22	app := cli.NewApp()23	app.Action = func(c *cli.Context) error {24		fmt.Println("kconfig")25	}26	app.RunAndExitOnError()27}28import (29func main() {30	gspt.SetProcTitle("kconfig")31	app := cli.NewApp()32	app.Action = func(c *cli.Context) error {33		fmt.Println("kconfig")34	}35	app.RunAndExitOnError()36}37import (38func main() {

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