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How to use parseOutputType method of main Package

Best Syzkaller code snippet using main.parseOutputType

fuzzer.go

Source:fuzzer.go

...101		flagTest    = flag.Bool("test", false, "enable image testing mode")      // used by syz-ci102		flagRunTest = flag.Bool("runtest", false, "enable program testing mode") // used by pkg/runtest103	)104	flag.Parse()105	outputType := parseOutputType(*flagOutput)106	log.Logf(0, "fuzzer started")107	target, err := prog.GetTarget(*flagOS, *flagArch)108	if err != nil {109		log.Fatalf("%v", err)110	}111	config, execOpts, err := ipcconfig.Default(target)112	if err != nil {113		log.Fatalf("failed to create default ipc config: %v", err)114	}115	sandbox := ipc.FlagsToSandbox(config.Flags)116	shutdown := make(chan struct{})117	osutil.HandleInterrupts(shutdown)118	go func() {119		// Handles graceful preemption on GCE.120		<-shutdown121		log.Logf(0, "SYZ-FUZZER: PREEMPTED")122		os.Exit(1)123	}()124	checkArgs := &checkArgs{125		target:      target,126		sandbox:     sandbox,127		ipcConfig:   config,128		ipcExecOpts: execOpts,129	}130	if *flagTest {131		testImage(*flagManager, checkArgs)132		return133	}134	if *flagPprof != "" {135		go func() {136			err := http.ListenAndServe(*flagPprof, nil)137			log.Fatalf("failed to serve pprof profiles: %v", err)138		}()139	} else {140		runtime.MemProfileRate = 0141	}142	log.Logf(0, "dialing manager at %v", *flagManager)143	manager, err := rpctype.NewRPCClient(*flagManager)144	if err != nil {145		log.Fatalf("failed to connect to manager: %v ", err)146	}147	log.Logf(1, "connecting to manager...")148	a := &rpctype.ConnectArgs{Name: *flagName}149	r := &rpctype.ConnectRes{}150	if err := manager.Call("Manager.Connect", a, r); err != nil {151		log.Fatalf("failed to connect to manager: %v ", err)152	}153	featureFlags, err := csource.ParseFeaturesFlags("none", "none", true)154	if err != nil {155		log.Fatal(err)156	}157	if r.CheckResult == nil {158		checkArgs.gitRevision = r.GitRevision159		checkArgs.targetRevision = r.TargetRevision160		checkArgs.enabledCalls = r.EnabledCalls161		checkArgs.allSandboxes = r.AllSandboxes162		checkArgs.featureFlags = featureFlags163		r.CheckResult, err = checkMachine(checkArgs)164		if err != nil {165			if r.CheckResult == nil {166				r.CheckResult = new(rpctype.CheckArgs)167			}168			r.CheckResult.Error = err.Error()169		}170		r.CheckResult.Name = *flagName171		if err := manager.Call("Manager.Check", r.CheckResult, nil); err != nil {172			log.Fatalf("Manager.Check call failed: %v", err)173		}174		if r.CheckResult.Error != "" {175			log.Fatalf("%v", r.CheckResult.Error)176		}177	} else {178		if err = host.Setup(target, r.CheckResult.Features, featureFlags, config.Executor); err != nil {179			log.Fatal(err)180		}181	}182	log.Logf(0, "syscalls: %v", len(r.CheckResult.EnabledCalls[sandbox]))183	for _, feat := range r.CheckResult.Features.Supported() {184		log.Logf(0, "%v: %v", feat.Name, feat.Reason)185	}186	if r.CheckResult.Features[host.FeatureExtraCoverage].Enabled {187		config.Flags |= ipc.FlagExtraCover188	}189	if r.CheckResult.Features[host.FeatureNetInjection].Enabled {190		config.Flags |= ipc.FlagEnableTun191	}192	if r.CheckResult.Features[host.FeatureNetDevices].Enabled {193		config.Flags |= ipc.FlagEnableNetDev194	}195	config.Flags |= ipc.FlagEnableNetReset196	config.Flags |= ipc.FlagEnableCgroups197	config.Flags |= ipc.FlagEnableCloseFds198	if r.CheckResult.Features[host.FeatureDevlinkPCI].Enabled {199		config.Flags |= ipc.FlagEnableDevlinkPCI200	}201	if *flagRunTest {202		runTest(target, manager, *flagName, config.Executor)203		return204	}205	needPoll := make(chan struct{}, 1)206	needPoll <- struct{}{}207	fuzzer := &Fuzzer{208		name:                     *flagName,209		outputType:               outputType,210		config:                   config,211		execOpts:                 execOpts,212		workQueue:                newWorkQueue(*flagProcs, needPoll),213		needPoll:                 needPoll,214		manager:                  manager,215		target:                   target,216		faultInjectionEnabled:    r.CheckResult.Features[host.FeatureFault].Enabled,217		comparisonTracingEnabled: r.CheckResult.Features[host.FeatureComparisons].Enabled,218		corpusHashes:             make(map[hash.Sig]struct{}),219	}220	gateCallback := fuzzer.useBugFrames(r, *flagProcs)221	fuzzer.gate = ipc.NewGate(2**flagProcs, gateCallback)222	for i := 0; fuzzer.poll(i == 0, nil); i++ {223	}224	calls := make(map[*prog.Syscall]bool)225	for _, id := range r.CheckResult.EnabledCalls[sandbox] {226		calls[target.Syscalls[id]] = true227	}228	fuzzer.choiceTable = target.BuildChoiceTable(fuzzer.corpus, calls)229	for pid := 0; pid < *flagProcs; pid++ {230		proc, err := newProc(fuzzer, pid)231		if err != nil {232			log.Fatalf("failed to create proc: %v", err)233		}234		fuzzer.procs = append(fuzzer.procs, proc)235		go proc.loop()236	}237	fuzzer.pollLoop()238}239// Returns gateCallback for leak checking if enabled.240func (fuzzer *Fuzzer) useBugFrames(r *rpctype.ConnectRes, flagProcs int) func() {241	var gateCallback func()242	if r.CheckResult.Features[host.FeatureLeak].Enabled {243		gateCallback = func() { fuzzer.gateCallback(r.MemoryLeakFrames) }244	}245	if r.CheckResult.Features[host.FeatureKCSAN].Enabled && len(r.DataRaceFrames) != 0 {246		fuzzer.filterDataRaceFrames(r.DataRaceFrames)247	}248	return gateCallback249}250func (fuzzer *Fuzzer) gateCallback(leakFrames []string) {251	// Leak checking is very slow so we don't do it while triaging the corpus252	// (otherwise it takes infinity). When we have presumably triaged the corpus253	// (triagedCandidates == 1), we run leak checking bug ignore the result254	// to flush any previous leaks. After that (triagedCandidates == 2)255	// we do actual leak checking and report leaks.256	triagedCandidates := atomic.LoadUint32(&fuzzer.triagedCandidates)257	if triagedCandidates == 0 {258		return259	}260	args := append([]string{"leak"}, leakFrames...)261	output, err := osutil.RunCmd(10*time.Minute, "", fuzzer.config.Executor, args...)262	if err != nil && triagedCandidates == 2 {263		// If we exit right away, dying executors will dump lots of garbage to console.264		os.Stdout.Write(output)265		fmt.Printf("BUG: leak checking failed")266		time.Sleep(time.Hour)267		os.Exit(1)268	}269	if triagedCandidates == 1 {270		atomic.StoreUint32(&fuzzer.triagedCandidates, 2)271	}272}273func (fuzzer *Fuzzer) filterDataRaceFrames(frames []string) {274	args := append([]string{"setup_kcsan_filterlist"}, frames...)275	output, err := osutil.RunCmd(10*time.Minute, "", fuzzer.config.Executor, args...)276	if err != nil {277		log.Fatalf("failed to set KCSAN filterlist: %v", err)278	}279	log.Logf(0, "%s", output)280}281func (fuzzer *Fuzzer) pollLoop() {282	var execTotal uint64283	var lastPoll time.Time284	var lastPrint time.Time285	ticker := time.NewTicker(3 * time.Second).C286	for {287		poll := false288		select {289		case <-ticker:290		case <-fuzzer.needPoll:291			poll = true292		}293		if fuzzer.outputType != OutputStdout && time.Since(lastPrint) > 10*time.Second {294			// Keep-alive for manager.295			log.Logf(0, "alive, executed %v", execTotal)296			lastPrint = time.Now()297		}298		if poll || time.Since(lastPoll) > 10*time.Second {299			needCandidates := fuzzer.workQueue.wantCandidates()300			if poll && !needCandidates {301				continue302			}303			stats := make(map[string]uint64)304			for _, proc := range fuzzer.procs {305				stats["exec total"] += atomic.SwapUint64(&proc.env.StatExecs, 0)306				stats["executor restarts"] += atomic.SwapUint64(&proc.env.StatRestarts, 0)307			}308			for stat := Stat(0); stat < StatCount; stat++ {309				v := atomic.SwapUint64(&fuzzer.stats[stat], 0)310				stats[statNames[stat]] = v311				execTotal += v312			}313			if !fuzzer.poll(needCandidates, stats) {314				lastPoll = time.Now()315			}316		}317	}318}319func (fuzzer *Fuzzer) poll(needCandidates bool, stats map[string]uint64) bool {320	a := &rpctype.PollArgs{321		Name:           fuzzer.name,322		NeedCandidates: needCandidates,323		MaxSignal:      fuzzer.grabNewSignal().Serialize(),324		Stats:          stats,325	}326	r := &rpctype.PollRes{}327	if err := fuzzer.manager.Call("Manager.Poll", a, r); err != nil {328		log.Fatalf("Manager.Poll call failed: %v", err)329	}330	maxSignal := r.MaxSignal.Deserialize()331	log.Logf(1, "poll: candidates=%v inputs=%v signal=%v",332		len(r.Candidates), len(r.NewInputs), maxSignal.Len())333	fuzzer.addMaxSignal(maxSignal)334	for _, inp := range r.NewInputs {335		fuzzer.addInputFromAnotherFuzzer(inp)336	}337	for _, candidate := range r.Candidates {338		fuzzer.addCandidateInput(candidate)339	}340	if needCandidates && len(r.Candidates) == 0 && atomic.LoadUint32(&fuzzer.triagedCandidates) == 0 {341		atomic.StoreUint32(&fuzzer.triagedCandidates, 1)342	}343	return len(r.NewInputs) != 0 || len(r.Candidates) != 0 || maxSignal.Len() != 0344}345func (fuzzer *Fuzzer) sendInputToManager(inp rpctype.RPCInput) {346	a := &rpctype.NewInputArgs{347		Name:     fuzzer.name,348		RPCInput: inp,349	}350	if err := fuzzer.manager.Call("Manager.NewInput", a, nil); err != nil {351		log.Fatalf("Manager.NewInput call failed: %v", err)352	}353}354func (fuzzer *Fuzzer) addInputFromAnotherFuzzer(inp rpctype.RPCInput) {355	p := fuzzer.deserializeInput(inp.Prog)356	if p == nil {357		return358	}359	sig := hash.Hash(inp.Prog)360	sign := inp.Signal.Deserialize()361	fuzzer.addInputToCorpus(p, sign, sig)362}363func (fuzzer *Fuzzer) addCandidateInput(candidate rpctype.RPCCandidate) {364	p := fuzzer.deserializeInput(candidate.Prog)365	if p == nil {366		return367	}368	flags := ProgCandidate369	if candidate.Minimized {370		flags |= ProgMinimized371	}372	if candidate.Smashed {373		flags |= ProgSmashed374	}375	fuzzer.workQueue.enqueue(&WorkCandidate{376		p:     p,377		flags: flags,378	})379}380func (fuzzer *Fuzzer) deserializeInput(inp []byte) *prog.Prog {381	p, err := fuzzer.target.Deserialize(inp, prog.NonStrict)382	if err != nil {383		log.Fatalf("failed to deserialize prog: %v\n%s", err, inp)384	}385	if len(p.Calls) > prog.MaxCalls {386		return nil387	}388	return p389}390func (fuzzer *FuzzerSnapshot) chooseProgram(r *rand.Rand) *prog.Prog {391	randVal := r.Int63n(fuzzer.sumPrios + 1)392	idx := sort.Search(len(fuzzer.corpusPrios), func(i int) bool {393		return fuzzer.corpusPrios[i] >= randVal394	})395	return fuzzer.corpus[idx]396}397func (fuzzer *Fuzzer) addInputToCorpus(p *prog.Prog, sign signal.Signal, sig hash.Sig) {398	fuzzer.corpusMu.Lock()399	if _, ok := fuzzer.corpusHashes[sig]; !ok {400		fuzzer.corpus = append(fuzzer.corpus, p)401		fuzzer.corpusHashes[sig] = struct{}{}402		prio := int64(len(sign))403		if sign.Empty() {404			prio = 1405		}406		fuzzer.sumPrios += prio407		fuzzer.corpusPrios = append(fuzzer.corpusPrios, fuzzer.sumPrios)408	}409	fuzzer.corpusMu.Unlock()410	if !sign.Empty() {411		fuzzer.signalMu.Lock()412		fuzzer.corpusSignal.Merge(sign)413		fuzzer.maxSignal.Merge(sign)414		fuzzer.signalMu.Unlock()415	}416}417func (fuzzer *Fuzzer) snapshot() FuzzerSnapshot {418	fuzzer.corpusMu.RLock()419	defer fuzzer.corpusMu.RUnlock()420	return FuzzerSnapshot{fuzzer.corpus, fuzzer.corpusPrios, fuzzer.sumPrios}421}422func (fuzzer *Fuzzer) addMaxSignal(sign signal.Signal) {423	if sign.Len() == 0 {424		return425	}426	fuzzer.signalMu.Lock()427	defer fuzzer.signalMu.Unlock()428	fuzzer.maxSignal.Merge(sign)429}430func (fuzzer *Fuzzer) grabNewSignal() signal.Signal {431	fuzzer.signalMu.Lock()432	defer fuzzer.signalMu.Unlock()433	sign := fuzzer.newSignal434	if sign.Empty() {435		return nil436	}437	fuzzer.newSignal = nil438	return sign439}440func (fuzzer *Fuzzer) corpusSignalDiff(sign signal.Signal) signal.Signal {441	fuzzer.signalMu.RLock()442	defer fuzzer.signalMu.RUnlock()443	return fuzzer.corpusSignal.Diff(sign)444}445func (fuzzer *Fuzzer) checkNewSignal(p *prog.Prog, info *ipc.ProgInfo) (calls []int, extra bool) {446	fuzzer.signalMu.RLock()447	defer fuzzer.signalMu.RUnlock()448	for i, inf := range info.Calls {449		if fuzzer.checkNewCallSignal(p, &inf, i) {450			calls = append(calls, i)451		}452	}453	extra = fuzzer.checkNewCallSignal(p, &info.Extra, -1)454	return455}456func (fuzzer *Fuzzer) checkNewCallSignal(p *prog.Prog, info *ipc.CallInfo, call int) bool {457	diff := fuzzer.maxSignal.DiffRaw(info.Signal, signalPrio(p, info, call))458	if diff.Empty() {459		return false460	}461	fuzzer.signalMu.RUnlock()462	fuzzer.signalMu.Lock()463	fuzzer.maxSignal.Merge(diff)464	fuzzer.newSignal.Merge(diff)465	fuzzer.signalMu.Unlock()466	fuzzer.signalMu.RLock()467	return true468}469func signalPrio(p *prog.Prog, info *ipc.CallInfo, call int) (prio uint8) {470	if call == -1 {471		return 0472	}473	if info.Errno == 0 {474		prio |= 1 << 1475	}476	if !p.Target.CallContainsAny(p.Calls[call]) {477		prio |= 1 << 0478	}479	return480}481func parseOutputType(str string) OutputType {482	switch str {483	case "none":484		return OutputNone485	case "stdout":486		return OutputStdout487	case "dmesg":488		return OutputDmesg489	case "file":490		return OutputFile491	default:492		log.Fatalf("-output flag must be one of none/stdout/dmesg/file")493		return OutputNone494	}495}...

main.go

Source:main.go

1package main2import (3	"fmt"4	"io/ioutil"5	"os"6	"path/filepath"7	"strings"8	"time"9	"gopkg.in/alecthomas/kingpin.v2"10	"github.com/ark-lang/ark/src/ast"11	"github.com/ark-lang/ark/src/codegen"12	"github.com/ark-lang/ark/src/codegen/LLVMCodegen"13	"github.com/ark-lang/ark/src/doc"14	"github.com/ark-lang/ark/src/lexer"15	"github.com/ark-lang/ark/src/parser"16	"github.com/ark-lang/ark/src/semantic"17	"github.com/ark-lang/ark/src/util"18	"github.com/ark-lang/ark/src/util/log"19)20const (21	VERSION = "0.0.2"22	AUTHOR  = "The Ark Authors"23)24var startTime time.Time25func main() {26	startTime = time.Now()27	command := kingpin.MustParse(app.Parse(os.Args[1:]))28	log.SetLevel(*logLevel)29	log.SetTags(*logTags)30	context := NewContext()31	switch command {32	case buildCom.FullCommand():33		if *buildInput == "" {34			setupErr("No input files passed.")35		}36		context.Searchpaths = *buildSearchpaths37		context.Input = *buildInput38		outputType, err := codegen.ParseOutputType(*buildOutputType)39		if err != nil {40			fmt.Println(err)41			os.Exit(1)42		}43		// build the files44		context.Build(*buildOutput, outputType, *buildCodegen, *buildOptLevel)45		printFinishedMessage(startTime, buildCom.FullCommand(), 1)46	case docgenCom.FullCommand():47		context.Searchpaths = *docgenSearchpaths48		context.Input = *docgenInput49		context.Docgen(*docgenDir)50		printFinishedMessage(startTime, docgenCom.FullCommand(), 1)51	}52}53func printFinishedMessage(startTime time.Time, command string, numFiles int) {54	dur := time.Since(startTime)55	log.Info("main", "%s (%d file(s), %.2fms)\n",56		util.TEXT_GREEN+util.TEXT_BOLD+fmt.Sprintf("Finished %s", command)+util.TEXT_RESET,57		numFiles, float32(dur.Nanoseconds())/1000000)58}59func setupErr(err string, stuff ...interface{}) {60	log.Error("main", util.TEXT_RED+util.TEXT_BOLD+"error:"+util.TEXT_RESET+" %s\n",61		fmt.Sprintf(err, stuff...))62	os.Exit(util.EXIT_FAILURE_SETUP)63}64type Context struct {65	Searchpaths []string66	Input string67	moduleLookup *ast.ModuleLookup68	depGraph     *ast.DependencyGraph69	modules      []*ast.Module70	modulesToRead []*ast.ModuleName71}72func NewContext() *Context {73	res := &Context{74		moduleLookup: ast.NewModuleLookup(""),75		depGraph:     ast.NewDependencyGraph(),76	}77	return res78}79func (v *Context) Build(output string, outputType codegen.OutputType, usedCodegen string, optLevel int) {80	// Start by loading the runtime81	runtimeModule := LoadRuntime()82	// Parse the passed files83	v.parseFiles()84	// resolve85	hasMainFunc := false86	log.Timed("resolve phase", "", func() {87		for _, module := range v.modules {88			ast.Resolve(module, v.moduleLookup)89			// Use module scope to check for main function90			mainIdent := module.ModScope.GetIdent(ast.UnresolvedName{Name: "main"})91			if mainIdent != nil && mainIdent.Type == ast.IDENT_FUNCTION && mainIdent.Public {92				hasMainFunc = true93			}94		}95	})96	// and here we check if we should97	// bother continuing any further...98	if !hasMainFunc {99		log.Error("main", util.Red("error: ")+"main function not found\n")100		os.Exit(1)101	}102	// type inference103	log.Timed("inference phase", "", func() {104		for _, module := range v.modules {105			for _, submod := range module.Parts {106				ast.Infer(submod)107				// Dump AST108				log.Debugln("main", "AST of submodule `%s/%s`:", module.Name, submod.File.Name)109				for _, node := range submod.Nodes {110					log.Debugln("main", "%s", node.String())111				}112				log.Debugln("main", "")113			}114		}115	})116	// semantic analysis117	log.Timed("semantic analysis phase", "", func() {118		for _, module := range v.modules {119			semantic.SemCheck(module, *ignoreUnused)120		}121	})122	// codegen123	if usedCodegen != "none" {124		var gen codegen.Codegen125		switch usedCodegen {126		case "llvm":127			gen = &LLVMCodegen.Codegen{128				OutputName: output,129				OutputType: outputType,130				OptLevel:   optLevel,131			}132		default:133			log.Error("main", util.Red("error: ")+"Invalid backend choice `"+usedCodegen+"`")134			os.Exit(1)135		}136		log.Timed("codegen phase", "", func() {137			mods := v.modules138			if runtimeModule != nil {139				mods = append(mods, runtimeModule)140			}141			gen.Generate(mods)142		})143	}144}145func (v *Context) Docgen(dir string) {146	v.parseFiles()147	gen := &doc.Docgen{148		Input: v.modules,149		Dir:   dir,150	}151	gen.Generate()152}153func (v *Context) parseFiles() {154	if strings.HasSuffix(v.Input, ".ark") {155		// Handle the special case of a single .ark file156		modname := &ast.ModuleName{Parts: []string{"__main"}}157		module := &ast.Module{158			Name:    modname,159			Dirpath: "",160		}161		v.moduleLookup.Create(modname).Module = module162		v.parseFile(v.Input, module)163		v.modules = append(v.modules, module)164	} else {165		if strings.ContainsAny(v.Input, `\/. `) {166			setupErr("Invalid module name: %s", v.Input)167		}168		modname := &ast.ModuleName{Parts: strings.Split(v.Input, "::")}169		v.modulesToRead = append(v.modulesToRead, modname)170	}171	log.Timed("read/lex/parse phase", "", func() {172		for i := 0; i < len(v.modulesToRead); i++ {173			modname := v.174				modulesToRead[i]175			// Skip already loaded modules176			if _, err := v.moduleLookup.Get(modname); err == nil {177				continue178			}179			fi, dirpath, err := v.findModuleDir(modname.ToPath())180			if err != nil {181				setupErr("Couldn't find module `%s`: %s", modname, err)182			}183			if !fi.IsDir() {184				setupErr("Expected path `%s` to be directory, was file.", dirpath)185			}186			module := &ast.Module{187				Name:    modname,188				Dirpath: dirpath,189			}190			v.moduleLookup.Create(modname).Module = module191			// Check module children192			childFiles, err := ioutil.ReadDir(dirpath)193			if err != nil {194				setupErr("%s", err.Error())195			}196			for _, childFile := range childFiles {197				if strings.HasPrefix(childFile.Name(), ".") || !strings.HasSuffix(childFile.Name(), ".ark") {198					continue199				}200				actualFile := filepath.Join(dirpath, childFile.Name())201				v.parseFile(actualFile, module)202			}203			v.modules = append(v.modules, module)204		}205	})206	// Check for cyclic dependencies (in modules)207	log.Timed("cyclic dependency check", "", func() {208		errs := v.depGraph.DetectCycles()209		if len(errs) > 0 {210			log.Error("main", "%s: Encountered cyclic dependency between: ", util.Bold(util.Red("error")))211			for _, cycle := range errs {212				log.Error("main", "%s", cycle)213			}214			log.Errorln("main", "")215			os.Exit(util.EXIT_FAILURE_SETUP)216		}217	})218	// construction219	log.Timed("construction phase", "", func() {220		for _, module := range v.modules {221			ast.Construct(module, v.moduleLookup)222		}223	})224}225func (v *Context) parseFile(path string, module *ast.Module) {226	// Read227	sourcefile, err := lexer.NewSourcefile(path)228	if err != nil {229		setupErr("%s", err.Error())230	}231	// Lex232	sourcefile.Tokens = lexer.Lex(sourcefile)233	// Parse234	parsedFile, deps := parser.Parse(sourcefile)235	module.Trees = append(module.Trees, parsedFile)236	// Add dependencies to parse array237	for _, dep := range deps {238		depname := ast.NewModuleName(dep)239		v.modulesToRead = append(v.modulesToRead, depname)240		v.depGraph.AddDependency(module.Name, depname)241		if _, _, err := v.findModuleDir(depname.ToPath()); err != nil {242			log.Errorln("main", "%s [%s:%d:%d] Couldn't find module `%s`", util.Red("error:"),243				dep.Where().Filename, dep.Where().StartLine, dep.Where().EndLine,244				depname.String())245			log.Errorln("main", "%s", sourcefile.MarkSpan(dep.Where()))246			os.Exit(1)247		}248	}249}250func (v *Context) findModuleDir(modulePath string) (fi os.FileInfo, path string, err error) {251	for _, searchPath := range v.Searchpaths {252		path := filepath.Join(searchPath, modulePath)253		fi, err := os.Stat(path)254		if err != nil {255			continue256		}257		return fi, path, nil258	}259	return nil, "", fmt.Errorf("ark: Unable to find module `%s`", path)260}...

parseOutputType

Using AI Code Generation

1import (2func main() {3    outputType, err = parseOutputType(os.Args[1])4    if err != nil {5        fmt.Println("Error: ", err)6    } else {7        fmt.Println("Output Type: ", outputType)8    }9}10import (11func parseOutputType(outputType string) (string, error) {12    if strings.ToLower(outputType) == "json" {13    } else if strings.ToLower(outputType) == "xml" {14    } else {15        return "", errors.New("Invalid Output Type")16    }17}

parseOutputType

Using AI Code Generation

1import (2func main() {3	fmt.Println(stringutil.Reverse("Hello, world"))4}5func Reverse(s string) string {6	r := []rune(s)7	for i, j := 0, len(r)-1; i < len(r)/2; i, j = i+1, j-1 {8	}9	return string(r)10}11import (12func main() {13	fmt.Println(stringutil2.Reverse("Hello, world"))14}15func Reverse(s string) string {16	r := []rune(s)17	for i, j := 0, len(r)-1; i < len(r)/2; i, j = i+1, j-1 {

parseOutputType

Using AI Code Generation

1import (2func main() {3	fmt.Println("input: ", input)4	fmt.Println("output: ", output)5	fmt.Println("outputType: ", outputType)6	outputTypeInt, err := strconv.Atoi(outputType)7	if err != nil {8		log.Fatal(err)9	}10	parseOutputType(outputTypeInt)11}12import (13func parseOutputType(outputType int) {14	fmt.Println("outputType: ", outputType)15}

parseOutputType

Using AI Code Generation

1import (2func main() {3    fmt.Println(strings.Contains(s, "Hello"))4    fmt.Println(strings.Contains(s, "World!"))5    fmt.Println(strings.Contains(s, "world"))6    fmt.Println(strings.Contains(s, "Hello, World!"))7    fmt.Println(strings.Contains(s, "Hello, World!"))8    fmt.Println(strings.Contains(s, "Hello, Gophers!"))9}

parseOutputType

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println(output)4}5import "fmt"6func parseOutputType(outputType string) string {7    if outputType == "json" {8    } else if outputType == "xml" {9    } else {10    }11}12The issue is that the 2.go file does not know about the parseOutputType function because it is defined in a different file. The solution is to import the package where the function is defined:13import "github.com/user/1"

parseOutputType

Using AI Code Generation

1public void parseOutputType(String[] args) {2    if(args.length == 1) {3        outputType = "txt";4    }5    else if(args.length == 2) {6        outputType = args[1];7    }8    else if(args.length == 3) {9        outputType = args[2];10    }11    else {12        System.out.println("Error: Too many command line arguments.");13    }14}15public void parseInputType(String[] args) {16    if(args.length == 1) {17        inputType = "txt";18    }19    else if(args.length == 2) {20        inputType = args[0];21    }22    else if(args.length == 3) {23        inputType = args[1];24    }25    else {26        System.out.println("Error: Too many command line arguments.");27    }28}29public void parseInputFileName(String[] args) {30    if(args.length == 1) {31        inputFileName = "input.txt";32    }33    else if(args.length == 2) {34        inputFileName = args[0];35    }

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