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How to use Reverse method of internal Package

Best Ginkgo code snippet using internal.Reverse

block_filterer.go

Source:block_filterer.go

...27// and branch (Internal or External).28type BlockFilterer struct {29	// Params specifies the chain params of the current network.30	Params *chaincfg.Params31	// ExReverseFilter holds a reverse index mapping an external address to32	// the scoped index from which it was derived.33	ExReverseFilter map[string]waddrmgr.ScopedIndex34	// InReverseFilter holds a reverse index mapping an internal address to35	// the scoped index from which it was derived.36	InReverseFilter map[string]waddrmgr.ScopedIndex37	// WathcedOutPoints is a global set of outpoints being tracked by the38	// wallet. This allows the block filterer to check for spends from an39	// outpoint we own.40	WatchedOutPoints map[wire.OutPoint]btcutil.Address41	// FoundExternal is a two-layer map recording the scope and index of42	// external addresses found in a single block.43	FoundExternal map[waddrmgr.KeyScope]map[uint32]struct{}44	// FoundInternal is a two-layer map recording the scope and index of45	// internal addresses found in a single block.46	FoundInternal map[waddrmgr.KeyScope]map[uint32]struct{}47	// FoundOutPoints is a set of outpoints found in a single block whose48	// address belongs to the wallet.49	FoundOutPoints map[wire.OutPoint]btcutil.Address50	// RelevantTxns records the transactions found in a particular block51	// that contained matches from an address in either ExReverseFilter or52	// InReverseFilter.53	RelevantTxns []*wire.MsgTx54}55// NewBlockFilterer constructs the reverse indexes for the current set of56// external and internal addresses that we are searching for, and is used to57// scan successive blocks for addresses of interest. A particular block filter58// can be reused until the first call from `FitlerBlock` returns true.59func NewBlockFilterer(params *chaincfg.Params,60	req *FilterBlocksRequest) *BlockFilterer {61	// Construct a reverse index by address string for the requested62	// external addresses.63	nExAddrs := len(req.ExternalAddrs)64	exReverseFilter := make(map[string]waddrmgr.ScopedIndex, nExAddrs)65	for scopedIndex, addr := range req.ExternalAddrs {66		exReverseFilter[addr.EncodeAddress()] = scopedIndex67	}68	// Construct a reverse index by address string for the requested69	// internal addresses.70	nInAddrs := len(req.InternalAddrs)71	inReverseFilter := make(map[string]waddrmgr.ScopedIndex, nInAddrs)72	for scopedIndex, addr := range req.InternalAddrs {73		inReverseFilter[addr.EncodeAddress()] = scopedIndex74	}75	foundExternal := make(map[waddrmgr.KeyScope]map[uint32]struct{})76	foundInternal := make(map[waddrmgr.KeyScope]map[uint32]struct{})77	foundOutPoints := make(map[wire.OutPoint]btcutil.Address)78	return &BlockFilterer{79		Params:           params,80		ExReverseFilter:  exReverseFilter,81		InReverseFilter:  inReverseFilter,82		WatchedOutPoints: req.WatchedOutPoints,83		FoundExternal:    foundExternal,84		FoundInternal:    foundInternal,85		FoundOutPoints:   foundOutPoints,86	}87}88// FilterBlock parses all txns in the provided block, searching for any that89// contain addresses of interest in either the external or internal reverse90// filters. This method return true iff the block contains a non-zero number of91// addresses of interest, or a transaction in the block spends from outpoints92// controlled by the wallet.93func (bf *BlockFilterer) FilterBlock(block *wire.MsgBlock) bool {94	var hasRelevantTxns bool95	for _, tx := range block.Transactions {96		if bf.FilterTx(tx) {97			bf.RelevantTxns = append(bf.RelevantTxns, tx)98			hasRelevantTxns = true99		}100	}101	return hasRelevantTxns102}103// FilterTx scans all txouts in the provided txn, testing to see if any found104// addresses match those contained within the external or internal reverse105// indexes. This method returns true iff the txn contains a non-zero number of106// addresses of interest, or the transaction spends from an outpoint that107// belongs to the wallet.108func (bf *BlockFilterer) FilterTx(tx *wire.MsgTx) bool {109	var isRelevant bool110	// First, check the inputs to this transaction to see if they spend any111	// inputs belonging to the wallet. In addition to checking112	// WatchedOutPoints, we also check FoundOutPoints, in case a txn spends113	// from an outpoint created in the same block.114	for _, in := range tx.TxIn {115		if _, ok := bf.WatchedOutPoints[in.PreviousOutPoint]; ok {116			isRelevant = true117		}118		if _, ok := bf.FoundOutPoints[in.PreviousOutPoint]; ok {119			isRelevant = true120		}121	}122	// Now, parse all of the outputs created by this transactions, and see123	// if they contain any addresses known the wallet using our reverse124	// indexes for both external and internal addresses. If a new output is125	// found, we will add the outpoint to our set of FoundOutPoints.126	for i, out := range tx.TxOut {127		_, addrs, _, err := txscript.ExtractPkScriptAddrs(128			out.PkScript, bf.Params,129		)130		if err != nil {131			log.Warnf("Could not parse output script in %s:%d: %v",132				tx.TxHash(), i, err)133			continue134		}135		if !bf.FilterOutputAddrs(addrs) {136			continue137		}138		// If we've reached this point, then the output contains an139		// address of interest.140		isRelevant = true141		// Record the outpoint that containing the address in our set of142		// found outpoints, so that the caller can update its global143		// set of watched outpoints.144		outPoint := wire.OutPoint{145			Hash:  *btcutil.NewTx(tx).Hash(),146			Index: uint32(i),147		}148		bf.FoundOutPoints[outPoint] = addrs[0]149	}150	return isRelevant151}152// FilterOutputAddrs tests the set of addresses against the block filterer's153// external and internal reverse address indexes. If any are found, they are154// added to set of external and internal found addresses, respectively. This155// method returns true iff a non-zero number of the provided addresses are of156// interest.157func (bf *BlockFilterer) FilterOutputAddrs(addrs []btcutil.Address) bool {158	var isRelevant bool159	for _, addr := range addrs {160		addrStr := addr.EncodeAddress()161		if scopedIndex, ok := bf.ExReverseFilter[addrStr]; ok {162			bf.foundExternal(scopedIndex)163			isRelevant = true164		}165		if scopedIndex, ok := bf.InReverseFilter[addrStr]; ok {166			bf.foundInternal(scopedIndex)167			isRelevant = true168		}169	}170	return isRelevant171}172// foundExternal marks the scoped index as found within the block filterer's173// FoundExternal map. If this the first index found for a particular scope, the174// scope's second layer map will be initialized before marking the index.175func (bf *BlockFilterer) foundExternal(scopedIndex waddrmgr.ScopedIndex) {176	if _, ok := bf.FoundExternal[scopedIndex.Scope]; !ok {177		bf.FoundExternal[scopedIndex.Scope] = make(map[uint32]struct{})178	}179	bf.FoundExternal[scopedIndex.Scope][scopedIndex.Index] = struct{}{}...

Reverse

Using AI Code Generation

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

Reverse

Using AI Code Generation

1import (2func main() {3	fmt.Println(internal.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}11	/usr/lib/go-1.10/src/internal (from $GOROOT)12	/home/user1/go/src/internal (from $GOPATH)

Reverse

Using AI Code Generation

1import (2func main() {3    fmt.Println(internal.Reverse("Hello, World!"))4}5For example, if you have a package named mypackage in the directory $GOPATH/src/mypackage, you can import it in your code using the following statement:6import "mypackage"7For example, if you have a package named mypackage in the directory $GOPATH/src/mypackage/mysubpackage, you can import it in your code using the following statement:8import "mypackage/mysubpackage"9For example, if you have a package named mypackage in the directory $GOPATH/src/mypackage/mysubpackage, you can import it in your code using the following statement:10import "mypackage/mysubpackage"11For example, if you have a package named mypackage in the directory $GOPATH/src/mypackage/mysubpackage, you can import it in your code using

Reverse

Using AI Code Generation

1import (2func main() {3	fmt.Println(internal.Reverse("Hello, world."))4}5import (6func main() {7	fmt.Println(internal.Reverse("Hello, world."))8}9import (10func main() {11	fmt.Println(internal.Reverse("Hello, world."))12}13import (14func main() {15	fmt.Println(internal.Reverse("Hello, world."))16}17import (18func main() {19	fmt.Println(internal.Reverse("Hello, world."))20}21import (22func main() {23	fmt.Println(internal.Reverse("Hello, world."))24}25import (26func main() {27	fmt.Println(internal.Reverse("Hello, world."))28}29import (30func main() {31	fmt.Println(internal.Reverse("Hello, world."))32}33import (34func main() {35	fmt.Println(internal.Reverse("Hello, world."))36}

Reverse

Using AI Code Generation

1import (2func main() {3	fmt.Println(internal.Reverse("Hello, world."))4}5import (6func main() {7	fmt.Println(internal.Reverse("Hello, world."))8}9import (10func main() {11	fmt.Println(internal.Reverse("Hello, world."))12}13import (14func main() {15	fmt.Println(internal.Reverse("Hello, world."))16}

Reverse

Using AI Code Generation

1import (2func main() {3	fmt.Println(internal.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}11I want to import internal/1.go in 1.go12import "internal/1.go"13	/usr/local/go/src/internal/1.go (from $GOROOT)14	/home/username/go/src/internal/1.go (from $GOPATH)15How can I import internal/1.go in 1.go?16I want to import internal/1.go in 1.go17import "internal/1.go"18    /usr/local/go/src/internal/1.go (from $GOROOT)19    /home/username/go/src/internal/1.go (from $GOPATH)20How can I import internal/1.go in 1.go?21I want to import internal/1.go in 1.go22import "internal/1.go"23    /usr/local/go/src/internal/1.go (from $GOROOT)24    /home/username/go/src/internal/1.go (from $GOPATH)25How can I import internal/1.go in 1.go?

Reverse

Using AI Code Generation

1import (2func main() {3    fmt.Println("Enter a string to be reversed:")4    fmt.Scanln(&input)5    fmt.Println("Reversed string is:")6    fmt.Println(reverse.Reverse(input))7}

Reverse

Using AI Code Generation

1import (2func main() {3	fmt.Println(internal.Reverse("Hello, world."))4}5import (6func main() {7	fmt.Println(internal.Reverse("Hello, world."))8}9import (10func main() {11	fmt.Println(internal.Reverse("Hello, world."))12}13import (14func main() {15	fmt.Println(internal.Reverse("Hello, world."))16}17import (18func main() {19	fmt.Println(internal.Reverse("Hello, world."))20}

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