d6105893af
This commit improves the way the conditional execution stack is handled in a few ways. First, the current execution state is now pushed onto the end of the slice rather than the front of it. This has been done because it results in fewer allocations and is therefore more efficient. Second, the need for allocating and setting an initial true in the conditional stack has been eliminated. The vast majority of scripts don't contain any conditionals, so there is no reason to allocate a slice when it isn't needed. Third, a new function has been added to the engine to determine if the current conditional branch is executing named isBranchExecuting which handles the fact the conditional execution stack can now be empty and improves the readability of the code. Finally, it removes a couple of TODOs which I have verified do not apply. |
||
|---|---|---|
| .. | ||
| data | ||
| address.go | ||
| address_test.go | ||
| doc.go | ||
| engine.go | ||
| engine_test.go | ||
| error.go | ||
| example_test.go | ||
| internal_test.go | ||
| log.go | ||
| log_test.go | ||
| opcode.go | ||
| opcode_test.go | ||
| README.md | ||
| reference_test.go | ||
| script.go | ||
| script_test.go | ||
| scriptbuilder.go | ||
| scriptbuilder_test.go | ||
| sign.go | ||
| sign_test.go | ||
| stack.go | ||
| stack_test.go | ||
txscript
[
]
(https://travis-ci.org/btcsuite/btcd)
Package txscript implements the bitcoin transaction script language. There is a comprehensive test suite. Package txscript is licensed under the liberal ISC license.
This package has intentionally been designed so it can be used as a standalone package for any projects needing to use or validate bitcoin transaction scripts.
Bitcoin Scripts
Bitcoin provides a stack-based, FORTH-like langauge for the scripts in the bitcoin transactions. This language is not turing complete although it is still fairly powerful. A description of the language can be found at https://en.bitcoin.it/wiki/Script
Documentation
[
]
(http://godoc.org/github.com/btcsuite/btcd/txscript)
Full go doc style documentation for the project can be viewed online without
installing this package by using the GoDoc site
here.
You can also view the documentation locally once the package is installed with
the godoc tool by running godoc -http=":6060" and pointing your browser to
http://localhost:6060/pkg/github.com/btcsuite/btcd/txscript
Installation
$ go get github.com/btcsuite/btcd/txscript
Examples
-
[Standard Pay-to-pubkey-hash Script] (http://godoc.org/github.com/btcsuite/btcd/txscript#example-PayToAddrScript)
Demonstrates creating a script which pays to a bitcoin address. It also prints the created script hex and uses the DisasmString function to display the disassembled script. -
[Extracting Details from Standard Scripts] (http://godoc.org/github.com/btcsuite/btcd/txscript#example-ExtractPkScriptAddrs)
Demonstrates extracting information from a standard public key script. -
[Manually Signing a Transaction Output] (http://godoc.org/github.com/btcsuite/btcd/txscript#example-SignTxOutput)
Demonstrates manually creating and signing a redeem transaction.
GPG Verification Key
All official release tags are signed by Conformal so users can ensure the code has not been tampered with and is coming from Conformal. To verify the signature perform the following:
-
Download the public key from the Conformal website at https://opensource.conformal.com/GIT-GPG-KEY-conformal.txt
-
Import the public key into your GPG keyring:
gpg --import GIT-GPG-KEY-conformal.txt -
Verify the release tag with the following command where
TAG_NAMEis a placeholder for the specific tag:git tag -v TAG_NAME
License
Package txscript is licensed under the liberal ISC License.