all: fix typos in comments (ethereum#21118)

accounts/abi/bind/backends/simulated.go

@@ -64,7 +64,7 @@ type SimulatedBackend struct {
 
 	mu           sync.Mutex
 	pendingBlock *types.Block   // Currently pending block that will be imported on request
-	pendingState *state.StateDB // Currently pending state that will be the active on on request
+	pendingState *state.StateDB // Currently pending state that will be the active on request
 
 	events *filters.EventSystem // Event system for filtering log events live
 

accounts/abi/bind/base.go

@@ -49,7 +49,7 @@ type TransactOpts struct {
 	Nonce  *big.Int       // Nonce to use for the transaction execution (nil = use pending state)
 	Signer SignerFn       // Method to use for signing the transaction (mandatory)
 
-	Value    *big.Int // Funds to transfer along along the transaction (nil = 0 = no funds)
+	Value    *big.Int // Funds to transfer along the transaction (nil = 0 = no funds)
 	GasPrice *big.Int // Gas price to use for the transaction execution (nil = gas price oracle)
 	GasLimit uint64   // Gas limit to set for the transaction execution (0 = estimate)
 

accounts/abi/bind/template.go

@@ -64,7 +64,7 @@ type tmplField struct {
 	SolKind abi.Type // Raw abi type information
 }
 
-// tmplStruct is a wrapper around an abi.tuple contains a auto-generated
+// tmplStruct is a wrapper around an abi.tuple contains an auto-generated
 // struct name.
 type tmplStruct struct {
 	Name   string       // Auto-generated struct name(before solidity v0.5.11) or raw name.

accounts/abi/type.go

@@ -98,7 +98,7 @@ func NewType(t string, internalType string, components []ArgumentMarshaling) (ty
 			typ.Elem = &embeddedType
 			typ.stringKind = embeddedType.stringKind + sliced
 		} else if len(intz) == 1 {
-			// is a array
+			// is an array
 			typ.T = ArrayTy
 			typ.Elem = &embeddedType
 			typ.Size, err = strconv.Atoi(intz[0])

accounts/external/backend.go

@@ -167,7 +167,7 @@ func (api *ExternalSigner) SignData(account accounts.Account, mimeType string, d
 		hexutil.Encode(data)); err != nil {
 		return nil, err
 	}
-	// If V is on 27/28-form, convert to to 0/1 for Clique
+	// If V is on 27/28-form, convert to 0/1 for Clique
 	if mimeType == accounts.MimetypeClique && (res[64] == 27 || res[64] == 28) {
 		res[64] -= 27 // Transform V from 27/28 to 0/1 for Clique use
 	}

accounts/hd_test.go

@@ -61,7 +61,7 @@ func TestHDPathParsing(t *testing.T) {
 		// Weird inputs just to ensure they work
 		{"	m  /   44			'\n/\n   60	\n\n\t'   /\n0 ' /\t\t	0", DerivationPath{0x80000000 + 44, 0x80000000 + 60, 0x80000000 + 0, 0}},
 
-		// Invaid derivation paths
+		// Invalid derivation paths
 		{"", nil},              // Empty relative derivation path
 		{"m", nil},             // Empty absolute derivation path
 		{"m/", nil},            // Missing last derivation component

accounts/scwallet/hub.go

@@ -220,7 +220,7 @@ func (hub *Hub) refreshWallets() {
 		// Mark the reader as present
 		seen[reader] = struct{}{}
 
-		// If we alreay know about this card, skip to the next reader, otherwise clean up
+		// If we already know about this card, skip to the next reader, otherwise clean up
 		if wallet, ok := hub.wallets[reader]; ok {
 			if err := wallet.ping(); err == nil {
 				continue

accounts/scwallet/wallet.go

@@ -362,7 +362,7 @@ func (w *Wallet) Open(passphrase string) error {
 				return err
 			}
 			// Pairing succeeded, fall through to PIN checks. This will of course fail,
-			// but we can't return ErrPINNeeded directly here becase we don't know whether
+			// but we can't return ErrPINNeeded directly here because we don't know whether
 			// a PIN check or a PIN reset is needed.
 			passphrase = ""
 		}

cmd/clef/README.md

@@ -9,7 +9,7 @@ Clef can run as a daemon on the same machine, off a usb-stick like [USB armory](
 Check out the
 
 * [CLI tutorial](tutorial.md) for some concrete examples on how Clef works.
-* [Setup docs](docs/setup.md) for infos on how to configure Clef on QubesOS or USB Armory.
+* [Setup docs](docs/setup.md) for information on how to configure Clef on QubesOS or USB Armory.
 * [Data types](datatypes.md) for details on the communication messages between Clef and an external UI.
 
 ## Command line flags
@@ -882,7 +882,7 @@ TLDR; Use this method to keep track of signed transactions, instead of using the
 
 ### OnSignerStartup / `ui_onSignerStartup`
 
-This method provide the UI with information about what API version the signer uses (both internal and external) aswell as build-info and external API,
+This method provide the UI with information about what API version the signer uses (both internal and external) as well as build-info and external API,
 in k/v-form.
 
 Example call:

cmd/clef/datatypes.md

@@ -3,7 +3,7 @@
 These data types are defined in the channel between clef and the UI
 ### SignDataRequest
 
-SignDataRequest contains information about a pending request to sign some data. The data to be signed can be of various types, defined by content-type. Clef has done most of the work in canonicalizing and making sense of the data, and it's up to the UI to presentthe user with the contents of the `message`
+SignDataRequest contains information about a pending request to sign some data. The data to be signed can be of various types, defined by content-type. Clef has done most of the work in canonicalizing and making sense of the data, and it's up to the UI to present the user with the contents of the `message`
 
 Example:
 ```json

cmd/clef/docs/setup.md

@@ -186,7 +186,7 @@ from other qubes.
 
 ## USBArmory
 
-The [USB armory](https://inversepath.com/usbarmory) is an open source hardware design with an 800 Mhz ARM processor. It is a pocket-size
+The [USB armory](https://inversepath.com/usbarmory) is an open source hardware design with an 800 MHz ARM processor. It is a pocket-size
 computer. When inserted into a laptop, it identifies itself as a USB network interface, basically adding another network
 to your computer. Over this new network interface, you can SSH into the device. 
 

cmd/clef/intapi_changelog.md

@@ -12,7 +12,7 @@ Additional labels for pre-release and build metadata are available as extensions
 
 ### 7.0.1 
 
-Added `clef_New` to the internal API calleable from a UI. 
+Added `clef_New` to the internal API callable from a UI.
 
 > `New` creates a new password protected Account. The private key is protected with
 > the given password. Users are responsible to backup the private key that is stored
@@ -161,7 +161,7 @@ UserInputResponse struct {
 #### 1.2.0
 
 * Add `OnStartup` method, to provide the UI with information about what API version
-the signer uses (both internal and external) aswell as build-info and external api.
+the signer uses (both internal and external) as well as build-info and external api.
 
 Example call:
 ```json

cmd/geth/consolecmd_test.go

@@ -73,7 +73,7 @@ at block: 0 ({{niltime}})
 
 // Tests that a console can be attached to a running node via various means.
 func TestIPCAttachWelcome(t *testing.T) {
-	// Configure the instance for IPC attachement
+	// Configure the instance for IPC attachment
 	coinbase := "0x8605cdbbdb6d264aa742e77020dcbc58fcdce182"
 	var ipc string
 	if runtime.GOOS == "windows" {

cmd/puppeth/module_dashboard.go

@@ -257,7 +257,7 @@ var dashboardContent = `
 										<p>Under the hood the Android library is backed by a go-ethereum light node, meaning that given a not-too-old Android device, you should be able to join the network without significant issues. Certain functionality is not yet available and rough edges are bound to appear here and there, please report issues if you find any.</p>
 										<br/>
 										<p>The stable Android archives are distributed via Maven Central, and the develop snapshots via the Sonatype repositories. Before proceeding, please ensure you have a recent version configured in your Android project. You can find details in <a href="https://github.com/ethereum/go-ethereum/wiki/Mobile:-Introduction#android-archive" target="about:blank">Mobile: Introduction &ndash; Android archive</a>.
-										<p>Before connecting to the Ethereum network, download the <a href="/{{.GethGenesis}}"><code>{{.GethGenesis}}</code></a> genesis json file and either store it in your Android project as a resource file you can access, or save it as a string in a variable. You're going to need to to initialize your client.</p>
+										<p>Before connecting to the Ethereum network, download the <a href="/{{.GethGenesis}}"><code>{{.GethGenesis}}</code></a> genesis json file and either store it in your Android project as a resource file you can access, or save it as a string in a variable. You're going to need to initialize your client.</p>
 										<p>Inside your Java code you can now import the geth archive and connect to Ethereum:
 											<pre>import org.ethereum.geth.*;</pre>
 <pre>
@@ -288,7 +288,7 @@ node.start();
 										<p>Under the hood the iOS library is backed by a go-ethereum light node, meaning that given a not-too-old Apple device, you should be able to join the network without significant issues. Certain functionality is not yet available and rough edges are bound to appear here and there, please report issues if you find any.</p>
 										<br/>
 										<p>Both stable and develop builds of the iOS framework are available via CocoaPods. Before proceeding, please ensure you have a recent version configured in your iOS project. You can find details in <a href="https://github.com/ethereum/go-ethereum/wiki/Mobile:-Introduction#ios-framework" target="about:blank">Mobile: Introduction &ndash; iOS framework</a>.
-										<p>Before connecting to the Ethereum network, download the <a href="/{{.GethGenesis}}"><code>{{.GethGenesis}}</code></a> genesis json file and either store it in your iOS project as a resource file you can access, or save it as a string in a variable. You're going to need to to initialize your client.</p>
+										<p>Before connecting to the Ethereum network, download the <a href="/{{.GethGenesis}}"><code>{{.GethGenesis}}</code></a> genesis json file and either store it in your iOS project as a resource file you can access, or save it as a string in a variable. You're going to need to initialize your client.</p>
 										<p>Inside your Swift code you can now import the geth framework and connect to Ethereum (ObjC should be analogous):
 											<pre>import Geth</pre>
 <pre>

cmd/puppeth/module_faucet.go

@@ -213,7 +213,7 @@ func checkFaucet(client *sshClient, network string) (*faucetInfos, error) {
 	minutes, _ := strconv.Atoi(infos.envvars["FAUCET_MINUTES"])
 	tiers, _ := strconv.Atoi(infos.envvars["FAUCET_TIERS"])
 
-	// Retrieve the funding account informations
+	// Retrieve the funding account information
 	var out []byte
 	keyJSON, keyPass := "", ""
 	if out, err = client.Run(fmt.Sprintf("docker exec %s_faucet_1 cat /account.json", network)); err == nil {

consensus/clique/clique_test.go

@@ -99,7 +99,7 @@ func TestReimportMirroredState(t *testing.T) {
 	}
 
 	// Simulate a crash by creating a new chain on top of the database, without
-	// flushing the dirty states out. Insert the last block, trigerring a sidechain
+	// flushing the dirty states out. Insert the last block, triggering a sidechain
 	// reimport.
 	chain, _ = core.NewBlockChain(db, nil, params.AllCliqueProtocolChanges, engine, vm.Config{}, nil, nil)
 	defer chain.Stop()

consensus/misc/dao.go

@@ -27,7 +27,7 @@ import (
 )
 
 var (
-	// ErrBadProDAOExtra is returned if a header doens't support the DAO fork on a
+	// ErrBadProDAOExtra is returned if a header doesn't support the DAO fork on a
 	// pro-fork client.
 	ErrBadProDAOExtra = errors.New("bad DAO pro-fork extra-data")
 

core/blockchain.go

@@ -1074,7 +1074,7 @@ func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain [
 		size  = 0
 	)
 	// updateHead updates the head fast sync block if the inserted blocks are better
-	// and returns a indicator whether the inserted blocks are canonical.
+	// and returns an indicator whether the inserted blocks are canonical.
 	updateHead := func(head *types.Block) bool {
 		bc.chainmu.Lock()
 

core/blockchain_test.go

@@ -1410,7 +1410,7 @@ func TestEIP161AccountRemoval(t *testing.T) {
 		t.Error("account should not exist")
 	}
 
-	// account musn't be created post eip 161
+	// account mustn't be created post eip 161
 	if _, err := blockchain.InsertChain(types.Blocks{blocks[2]}); err != nil {
 		t.Fatal(err)
 	}

core/error.go

@@ -29,7 +29,7 @@ var (
 	ErrNoGenesis = errors.New("genesis not found in chain")
 )
 
-// List of evm-call-message pre-checking errors. All state transtion messages will
+// List of evm-call-message pre-checking errors. All state transition messages will
 // be pre-checked before execution. If any invalidation detected, the corresponding
 // error should be returned which is defined here.
 //

core/rawdb/chain_iterator.go

@@ -125,7 +125,7 @@ func iterateTransactions(db ethdb.Database, from uint64, to uint64, reverse bool
 			}
 		}
 	}
-	// process runs in parallell
+	// process runs in parallel
 	nThreadsAlive := int32(threads)
 	process := func() {
 		defer func() {

core/state/snapshot/difflayer.go

@@ -425,7 +425,7 @@ func (dl *diffLayer) Update(blockRoot common.Hash, destructs map[common.Hash]str
 
 // flatten pushes all data from this point downwards, flattening everything into
 // a single diff at the bottom. Since usually the lowermost diff is the largest,
-// the flattening bulds up from there in reverse.
+// the flattening builds up from there in reverse.
 func (dl *diffLayer) flatten() snapshot {
 	// If the parent is not diff, we're the first in line, return unmodified
 	parent, ok := dl.parent.(*diffLayer)

core/state/snapshot/iterator.go

@@ -26,7 +26,7 @@ import (
 	"github.com/ethereum/go-ethereum/ethdb"
 )
 
-// Iterator is a iterator to step over all the accounts or the specific
+// Iterator is an iterator to step over all the accounts or the specific
 // storage in a snapshot which may or may not be composed of multiple layers.
 type Iterator interface {
 	// Next steps the iterator forward one element, returning false if exhausted,
@@ -47,7 +47,7 @@ type Iterator interface {
 	Release()
 }
 
-// AccountIterator is a iterator to step over all the accounts in a snapshot,
+// AccountIterator is an iterator to step over all the accounts in a snapshot,
 // which may or may not be composed of multiple layers.
 type AccountIterator interface {
 	Iterator
@@ -57,7 +57,7 @@ type AccountIterator interface {
 	Account() []byte
 }
 
-// StorageIterator is a iterator to step over the specific storage in a snapshot,
+// StorageIterator is an iterator to step over the specific storage in a snapshot,
 // which may or may not be composed of multiple layers.
 type StorageIterator interface {
 	Iterator
@@ -250,7 +250,7 @@ type diffStorageIterator struct {
 func (dl *diffLayer) StorageIterator(account common.Hash, seek common.Hash) (StorageIterator, bool) {
 	// Create the storage for this account even it's marked
 	// as destructed. The iterator is for the new one which
-	// just has the same adddress as the deleted one.
+	// just has the same address as the deleted one.
 	hashes, destructed := dl.StorageList(account)
 	index := sort.Search(len(hashes), func(i int) bool {
 		return bytes.Compare(seek[:], hashes[i][:]) <= 0

core/state/snapshot/iterator_fast.go

@@ -238,7 +238,7 @@ func (fi *fastIterator) next(idx int) bool {
 		fi.iterators = append(fi.iterators[:idx], fi.iterators[idx+1:]...)
 		return len(fi.iterators) > 0
 	}
-	// If there's noone left to cascade into, return
+	// If there's no one left to cascade into, return
 	if idx == len(fi.iterators)-1 {
 		return true
 	}

core/state/snapshot/snapshot.go

@@ -330,7 +330,7 @@ func (t *Tree) Cap(root common.Hash, layers int) error {
 			remove(root)
 		}
 	}
-	// If the disk layer was modified, regenerate all the cummulative blooms
+	// If the disk layer was modified, regenerate all the cumulative blooms
 	if persisted != nil {
 		var rebloom func(root common.Hash)
 		rebloom = func(root common.Hash) {

core/state/snapshot/wipe.go

@@ -94,7 +94,7 @@ func wipeKeyRange(db ethdb.KeyValueStore, kind string, prefix []byte, keylen int
 
 	it := db.NewIterator(prefix, nil)
 	for it.Next() {
-		// Skip any keys with the correct prefix but wrong lenth (trie nodes)
+		// Skip any keys with the correct prefix but wrong length (trie nodes)
 		key := it.Key()
 		if !bytes.HasPrefix(key, prefix) {
 			break

core/tx_pool.go

@@ -71,7 +71,7 @@ var (
 	// maximum allowance of the current block.
 	ErrGasLimit = errors.New("exceeds block gas limit")
 
-	// ErrNegativeValue is a sanity error to ensure noone is able to specify a
+	// ErrNegativeValue is a sanity error to ensure no one is able to specify a
 	// transaction with a negative value.
 	ErrNegativeValue = errors.New("negative value")
 

core/vm/contracts.go

@@ -465,7 +465,7 @@ var (
 )
 
 func (c *blake2F) Run(input []byte) ([]byte, error) {
-	// Make sure the input is valid (correct lenth and final flag)
+	// Make sure the input is valid (correct length and final flag)
 	if len(input) != blake2FInputLength {
 		return nil, errBlake2FInvalidInputLength
 	}

core/vm/gas.go

@@ -39,7 +39,7 @@ func callGas(isEip150 bool, availableGas, base uint64, callCost *big.Int) (uint6
 		availableGas = availableGas - base
 		gas := availableGas - availableGas/64
 		// If the bit length exceeds 64 bit we know that the newly calculated "gas" for EIP150
-		// is smaller than the requested amount. Therefor we return the new gas instead
+		// is smaller than the requested amount. Therefore we return the new gas instead
 		// of returning an error.
 		if !callCost.IsUint64() || gas < callCost.Uint64() {
 			return gas, nil

eth/downloader/downloader.go

@@ -724,7 +724,7 @@ func (d *Downloader) findAncestor(p *peerConnection, remoteHeader *types.Header)
 	// If we're doing a light sync, ensure the floor doesn't go below the CHT, as
 	// all headers before that point will be missing.
 	if d.mode == LightSync {
-		// If we dont know the current CHT position, find it
+		// If we don't know the current CHT position, find it
 		if d.genesis == 0 {
 			header := d.lightchain.CurrentHeader()
 			for header != nil {
@@ -1182,7 +1182,7 @@ func (d *Downloader) fetchReceipts(from uint64) error {
 //  - capacity:    network callback to retrieve the estimated type-specific bandwidth capacity of a peer (traffic shaping)
 //  - idle:        network callback to retrieve the currently (type specific) idle peers that can be assigned tasks
 //  - setIdle:     network callback to set a peer back to idle and update its estimated capacity (traffic shaping)
-//  - kind:        textual label of the type being downloaded to display in log mesages
+//  - kind:        textual label of the type being downloaded to display in log messages
 func (d *Downloader) fetchParts(deliveryCh chan dataPack, deliver func(dataPack) (int, error), wakeCh chan bool,
 	expire func() map[string]int, pending func() int, inFlight func() bool, throttle func() bool, reserve func(*peerConnection, int) (*fetchRequest, bool, error),
 	fetchHook func([]*types.Header), fetch func(*peerConnection, *fetchRequest) error, cancel func(*fetchRequest), capacity func(*peerConnection) int,

eth/downloader/downloader_test.go

@@ -1069,7 +1069,7 @@ func testInvalidHeaderRollback(t *testing.T, protocol int, mode SyncMode) {
 	}
 }
 
-// Tests that a peer advertising an high TD doesn't get to stall the downloader
+// Tests that a peer advertising a high TD doesn't get to stall the downloader
 // afterwards by not sending any useful hashes.
 func TestHighTDStarvationAttack62(t *testing.T)      { testHighTDStarvationAttack(t, 62, FullSync) }
 func TestHighTDStarvationAttack63Full(t *testing.T)  { testHighTDStarvationAttack(t, 63, FullSync) }

eth/downloader/peer.go

@@ -155,7 +155,7 @@ func (p *peerConnection) FetchHeaders(from uint64, count int) error {
 	}
 	p.headerStarted = time.Now()
 
-	// Issue the header retrieval request (absolut upwards without gaps)
+	// Issue the header retrieval request (absolute upwards without gaps)
 	go p.peer.RequestHeadersByNumber(from, count, 0, false)
 
 	return nil

eth/fetcher/tx_fetcher.go

@@ -515,7 +515,7 @@ func (f *TxFetcher) loop() {
 			// Schedule a new transaction retrieval
 			f.scheduleFetches(timeoutTimer, timeoutTrigger, nil)
 
-			// No idea if we sheduled something or not, trigger the timer if needed
+			// No idea if we scheduled something or not, trigger the timer if needed
 			// TODO(karalabe): this is kind of lame, can't we dump it into scheduleFetches somehow?
 			f.rescheduleTimeout(timeoutTimer, timeoutTrigger)