How to use Is method of utils Package

Best Rod code snippet using utils.Is

main.go

Source:main.go

...283// This function should be called before launching devp2p stack.284func prepare(ctx *cli.Context) {285	// If we're running a known preset, log it for convenience.286	switch {287	case ctx.GlobalIsSet(utils.RopstenFlag.Name):288		log.Info("Starting Geth on Ropsten testnet...")289	case ctx.GlobalIsSet(utils.SepoliaFlag.Name):290		log.Info("Starting Geth on Sepolia testnet...")291	case ctx.GlobalIsSet(utils.RinkebyFlag.Name):292		log.Info("Starting Geth on Rinkeby testnet...")293	case ctx.GlobalIsSet(utils.GoerliFlag.Name):294		log.Info("Starting Geth on GÃ¶rli testnet...")295	case ctx.GlobalIsSet(utils.DeveloperFlag.Name):296		log.Info("Starting Geth in ephemeral dev mode...")297	case !ctx.GlobalIsSet(utils.NetworkIdFlag.Name):298		log.Info("Starting Geth on Ethereum mainnet...")299	}300	// If we're a full node on mainnet without --cache specified, bump default cache allowance301	if ctx.GlobalString(utils.SyncModeFlag.Name) != "light" && !ctx.GlobalIsSet(utils.CacheFlag.Name) && !ctx.GlobalIsSet(utils.NetworkIdFlag.Name) {302		// Make sure we're not on any supported preconfigured testnet either303		if !ctx.GlobalIsSet(utils.RopstenFlag.Name) &&304			!ctx.GlobalIsSet(utils.SepoliaFlag.Name) &&305			!ctx.GlobalIsSet(utils.RinkebyFlag.Name) &&306			!ctx.GlobalIsSet(utils.GoerliFlag.Name) &&307			!ctx.GlobalIsSet(utils.DeveloperFlag.Name) {308			// Nope, we're really on mainnet. Bump that cache up!309			log.Info("Bumping default cache on mainnet", "provided", ctx.GlobalInt(utils.CacheFlag.Name), "updated", 4096)310			ctx.GlobalSet(utils.CacheFlag.Name, strconv.Itoa(4096))311		}312	}313	// If we're running a light client on any network, drop the cache to some meaningfully low amount314	if ctx.GlobalString(utils.SyncModeFlag.Name) == "light" && !ctx.GlobalIsSet(utils.CacheFlag.Name) {315		log.Info("Dropping default light client cache", "provided", ctx.GlobalInt(utils.CacheFlag.Name), "updated", 128)316		ctx.GlobalSet(utils.CacheFlag.Name, strconv.Itoa(128))317	}318	// Start metrics export if enabled319	utils.SetupMetrics(ctx)320	// Start system runtime metrics collection321	go metrics.CollectProcessMetrics(3 * time.Second)322}323// geth is the main entry point into the system if no special subcommand is ran.324// It creates a default node based on the command line arguments and runs it in325// blocking mode, waiting for it to be shut down.326func geth(ctx *cli.Context) error {327	if args := ctx.Args(); len(args) > 0 {328		return fmt.Errorf("invalid command: %q", args[0])329	}330	prepare(ctx)331	stack, backend := makeFullNode(ctx)332	defer stack.Close()333	startNode(ctx, stack, backend, false)334	stack.Wait()335	return nil336}337// startNode boots up the system node and all registered protocols, after which338// it unlocks any requested accounts, and starts the RPC/IPC interfaces and the339// miner.340func startNode(ctx *cli.Context, stack *node.Node, backend ethapi.Backend, isConsole bool) {341	debug.Memsize.Add("node", stack)342	// Start up the node itself343	utils.StartNode(ctx, stack, isConsole)344	// Unlock any account specifically requested345	unlockAccounts(ctx, stack)346	// Register wallet event handlers to open and auto-derive wallets347	events := make(chan accounts.WalletEvent, 16)348	stack.AccountManager().Subscribe(events)349	// Create a client to interact with local geth node.350	rpcClient, err := stack.Attach()351	if err != nil {352		utils.Fatalf("Failed to attach to self: %v", err)353	}354	ethClient := ethclient.NewClient(rpcClient)355	go func() {356		// Open any wallets already attached357		for _, wallet := range stack.AccountManager().Wallets() {358			if err := wallet.Open(""); err != nil {359				log.Warn("Failed to open wallet", "url", wallet.URL(), "err", err)360			}361		}362		// Listen for wallet event till termination363		for event := range events {364			switch event.Kind {365			case accounts.WalletArrived:366				if err := event.Wallet.Open(""); err != nil {367					log.Warn("New wallet appeared, failed to open", "url", event.Wallet.URL(), "err", err)368				}369			case accounts.WalletOpened:370				status, _ := event.Wallet.Status()371				log.Info("New wallet appeared", "url", event.Wallet.URL(), "status", status)372				var derivationPaths []accounts.DerivationPath373				if event.Wallet.URL().Scheme == "ledger" {374					derivationPaths = append(derivationPaths, accounts.LegacyLedgerBaseDerivationPath)375				}376				derivationPaths = append(derivationPaths, accounts.DefaultBaseDerivationPath)377				event.Wallet.SelfDerive(derivationPaths, ethClient)378			case accounts.WalletDropped:379				log.Info("Old wallet dropped", "url", event.Wallet.URL())380				event.Wallet.Close()381			}382		}383	}()384	// Spawn a standalone goroutine for status synchronization monitoring,385	// close the node when synchronization is complete if user required.386	if ctx.GlobalBool(utils.ExitWhenSyncedFlag.Name) {387		go func() {388			sub := stack.EventMux().Subscribe(downloader.DoneEvent{})389			defer sub.Unsubscribe()390			for {391				event := <-sub.Chan()392				if event == nil {393					continue394				}395				done, ok := event.Data.(downloader.DoneEvent)396				if !ok {397					continue398				}399				if timestamp := time.Unix(int64(done.Latest.Time), 0); time.Since(timestamp) < 10*time.Minute {400					log.Info("Synchronisation completed", "latestnum", done.Latest.Number, "latesthash", done.Latest.Hash(),401						"age", common.PrettyAge(timestamp))402					stack.Close()403				}404			}405		}()406	}407	// Start auxiliary services if enabled408	if ctx.GlobalBool(utils.MiningEnabledFlag.Name) || ctx.GlobalBool(utils.DeveloperFlag.Name) {409		// Mining only makes sense if a full Ethereum node is running410		if ctx.GlobalString(utils.SyncModeFlag.Name) == "light" {411			utils.Fatalf("Light clients do not support mining")412		}413		ethBackend, ok := backend.(*eth.EthAPIBackend)414		if !ok {415			utils.Fatalf("Ethereum service not running")416		}417		// Set the gas price to the limits from the CLI and start mining418		gasprice := utils.GlobalBig(ctx, utils.MinerGasPriceFlag.Name)419		ethBackend.TxPool().SetGasPrice(gasprice)420		// start mining421		threads := ctx.GlobalInt(utils.MinerThreadsFlag.Name)422		if err := ethBackend.StartMining(threads); err != nil {423			utils.Fatalf("Failed to start mining: %v", err)424		}425	}426}427// unlockAccounts unlocks any account specifically requested.428func unlockAccounts(ctx *cli.Context, stack *node.Node) {429	var unlocks []string430	inputs := strings.Split(ctx.GlobalString(utils.UnlockedAccountFlag.Name), ",")431	for _, input := range inputs {432		if trimmed := strings.TrimSpace(input); trimmed != "" {433			unlocks = append(unlocks, trimmed)434		}435	}436	// Short circuit if there is no account to unlock.437	if len(unlocks) == 0 {438		return439	}440	// If insecure account unlocking is not allowed if node's APIs are exposed to external.441	// Print warning log to user and skip unlocking.442	if !stack.Config().InsecureUnlockAllowed && stack.Config().ExtRPCEnabled() {443		utils.Fatalf("Account unlock with HTTP access is forbidden!")444	}445	ks := stack.AccountManager().Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)446	passwords := utils.MakePasswordList(ctx)447	for i, account := range unlocks {448		unlockAccount(ks, account, i, passwords)449	}450}...

Using AI Code Generation

1import (2func main() {3	fmt.Println("Is(5, 5):", utils.Is(5, 5))4	fmt.Println("Is(5, 6):", utils.Is(5, 6))5}6import (7func main() {8	fmt.Println("Is(5, 5):", utils.Is(5, 5))9	fmt.Println("Is(5, 6):", utils.Is(5, 6))10}11import (12func main() {13	fmt.Println("Is(5, 5):", utils.Is(5, 5))14	fmt.Println("Is(5, 6):", utils.Is(5, 6))15}16import (17func main() {18	fmt.Println("Is(5, 5):", utils.Is(5, 5))19	fmt.Println("Is(5, 6):", utils.Is(5, 6))20}21import (22func main() {23	fmt.Println("Is(5, 5):", utils.Is(5, 5))24	fmt.Println("Is(5, 6):", utils.Is(5, 6))25}26import (27func main() {28	fmt.Println("Is(5, 5):", utils.Is(5, 5))29	fmt.Println("Is(5, 6):", utils.Is(5, 6))30}31import (32func main() {33	fmt.Println("Is(5, 5):", utils.Is(5, 5))34	fmt.Println("Is(5, 6):", utils.Is(5, 6))35}

Using AI Code Generation

1import (2func main() {3	fmt.Println(utils.Is(10, 10))4}5import (6func main() {7	fmt.Println(utils.Is(10, 10))8}9func Is(a, b int) bool {10}11We can import the package in other go source code files by using the following syntax:12import "utils"13import "utils"14func main() {15	utils.Is(10, 10)16}17import "utils"18func main() {19	utils.Is(10, 10)20}

Using AI Code Generation

1import (2func main() {3 fmt.Println("Hello, 世界")4 fmt.Println(utils.Is("hello"))5}6func Is(s string) bool {7}

Using AI Code Generation

1import (2func main() {3    fmt.Println(utils.Is("abc", "abc"))4}5func Is(a, b string) bool {6}7import (8func TestIs(t *testing.T) {9    if !Is("abc", "abc") {10        t.Error("Expected abc, got ", "abc")11    }12}13import (14func BenchmarkIs(b *testing.B) {15    for i := 0; i < b.N; i++ {16        Is("abc", "abc")17    }18}19import (20func ExampleIs() {21    fmt.Println(Is("abc", "abc"))22}23--- PASS: TestIs (0.00s)24--- PASS: BenchmarkIs (0.00s)25--- PASS: ExampleIs (0.00s)26--- PASS: TestIs (0.00s)27--- PASS: ExampleIs (0.00s)

Using AI Code Generation

1import (2func main() {3    fmt.Println(utils.Is("123", "int"))4}5import (6func Is(str, kind string) bool {7    switch kind {8        _, err := strconv.Atoi(str)9        _, err := strconv.ParseFloat(str, 64)10        _, err := strconv.ParseBool(str)11    }12}

Using AI Code Generation

1import (2func main() {3	fmt.Println(utils.IsExist("2.go"))4}5func IsExist(path string) bool6import (7func main() {8	fmt.Println(utils.IsExist("2.go"))9}

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello World")4	fmt.Println(utils.Is("Prasad"))5}6import (7func main() {8	fmt.Println("Hello World")9	fmt.Println(utils.Is("Prasad"))10}11import (12func main() {13	fmt.Println("Hello World")14	fmt.Println(utils.Is("Prasad"))15}16import (17func main() {18	fmt.Println("Hello World")19	fmt.Println(utils.Is("Prasad"))20}21import (22func main() {23	fmt.Println("Hello World")24	fmt.Println(utils.Is("Prasad"))25}26import (27func main() {28	fmt.Println("Hello World")29	fmt.Println(utils.Is("Prasad"))30}31import (32func main() {33	fmt.Println("Hello World")34	fmt.Println(utils.Is("Prasad"))35}36import (37func main() {38	fmt.Println("Hello World")39	fmt.Println(utils.Is("Prasad"))40}41import (42func main() {43	fmt.Println("Hello World")44	fmt.Println(utils.Is("Prasad"))45}

Using AI Code Generation

1import (2func main() {3	fmt.Println(stringutil.Is("Hello World", "Hello"))4}5We can also import the package from the different directory. For example, if the stringutil package is present in the utils directory, we can import it as follows:6import (7func main() {8	fmt.Println(stringutil.Is("Hello World", "Hello"))9}10We can also import the package from the different directory. For example, if the stringutil package is present in the utils directory, we can import it as follows:11import (12func main() {13	fmt.Println(stringutil.Is("Hello World", "Hello"))14}

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