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scripts: s/opcodes/ops

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This commit is contained in:
Daniel Cousens 2014-10-13 18:37:50 +11:00
parent bc2048dfca
commit 407d15869a
1 changed files with 32 additions and 32 deletions

64
src/scripts.js
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@ -1,6 +1,6 @@
var assert = require('assert') var assert = require('assert')
var enforceType = require('./types') var enforceType = require('./types')
var opcodes = require('./opcodes') var ops = require('./opcodes')
var ecurve = require('ecurve') var ecurve = require('ecurve')
var curve = ecurve.getCurveByName('secp256k1') var curve = ecurve.getCurveByName('secp256k1')
@ -78,12 +78,12 @@ function isPubKeyHashInput() {
function isPubKeyHashOutput() { function isPubKeyHashOutput() {
return this.chunks.length === 5 && return this.chunks.length === 5 &&
this.chunks[0] === opcodes.OP_DUP && this.chunks[0] === ops.OP_DUP &&
this.chunks[1] === opcodes.OP_HASH160 && this.chunks[1] === ops.OP_HASH160 &&
Buffer.isBuffer(this.chunks[2]) && Buffer.isBuffer(this.chunks[2]) &&
this.chunks[2].length === 20 && this.chunks[2].length === 20 &&
this.chunks[3] === opcodes.OP_EQUALVERIFY && this.chunks[3] === ops.OP_EQUALVERIFY &&
this.chunks[4] === opcodes.OP_CHECKSIG this.chunks[4] === ops.OP_CHECKSIG
} }
function isPubKeyInput() { function isPubKeyInput() {
@ -94,7 +94,7 @@ function isPubKeyInput() {
function isPubKeyOutput() { function isPubKeyOutput() {
return this.chunks.length === 2 && return this.chunks.length === 2 &&
isCanonicalPubKey(this.chunks[0]) && isCanonicalPubKey(this.chunks[0]) &&
this.chunks[1] === opcodes.OP_CHECKSIG this.chunks[1] === ops.OP_CHECKSIG
} }
function isScriptHashInput() { function isScriptHashInput() {
@ -111,33 +111,33 @@ function isScriptHashInput() {
function isScriptHashOutput() { function isScriptHashOutput() {
return this.chunks.length === 3 && return this.chunks.length === 3 &&
this.chunks[0] === opcodes.OP_HASH160 && this.chunks[0] === ops.OP_HASH160 &&
Buffer.isBuffer(this.chunks[1]) && Buffer.isBuffer(this.chunks[1]) &&
this.chunks[1].length === 20 && this.chunks[1].length === 20 &&
this.chunks[2] === opcodes.OP_EQUAL this.chunks[2] === ops.OP_EQUAL
} }
function isMultisigInput() { function isMultisigInput() {
return this.chunks[0] === opcodes.OP_0 && return this.chunks[0] === ops.OP_0 &&
this.chunks.slice(1).every(isCanonicalSignature) this.chunks.slice(1).every(isCanonicalSignature)
} }
function isMultisigOutput() { function isMultisigOutput() {
if (this.chunks < 4) return false if (this.chunks < 4) return false
if (this.chunks[this.chunks.length - 1] !== opcodes.OP_CHECKMULTISIG) return false if (this.chunks[this.chunks.length - 1] !== ops.OP_CHECKMULTISIG) return false
var mOp = this.chunks[0] var mOp = this.chunks[0]
if (mOp === opcodes.OP_0) return false if (mOp === ops.OP_0) return false
if (mOp < opcodes.OP_1) return false if (mOp < ops.OP_1) return false
if (mOp > opcodes.OP_16) return false if (mOp > ops.OP_16) return false
var nOp = this.chunks[this.chunks.length - 2] var nOp = this.chunks[this.chunks.length - 2]
if (nOp === opcodes.OP_0) return false if (nOp === ops.OP_0) return false
if (nOp < opcodes.OP_1) return false if (nOp < ops.OP_1) return false
if (nOp > opcodes.OP_16) return false if (nOp > ops.OP_16) return false
var m = mOp - (opcodes.OP_1 - 1) var m = mOp - (ops.OP_1 - 1)
var n = nOp - (opcodes.OP_1 - 1) var n = nOp - (ops.OP_1 - 1)
if (n < m) return false if (n < m) return false
var pubKeys = this.chunks.slice(1, -2) var pubKeys = this.chunks.slice(1, -2)
@ -147,7 +147,7 @@ function isMultisigOutput() {
} }
function isNulldataOutput() { function isNulldataOutput() {
return this.chunks[0] === opcodes.OP_RETURN return this.chunks[0] === ops.OP_RETURN
} }
// Standard Script Templates // Standard Script Templates
@ -155,7 +155,7 @@ function isNulldataOutput() {
function pubKeyOutput(pubKey) { function pubKeyOutput(pubKey) {
return Script.fromChunks([ return Script.fromChunks([
pubKey.toBuffer(), pubKey.toBuffer(),
opcodes.OP_CHECKSIG ops.OP_CHECKSIG
]) ])
} }
@ -164,11 +164,11 @@ function pubKeyHashOutput(hash) {
enforceType('Buffer', hash) enforceType('Buffer', hash)
return Script.fromChunks([ return Script.fromChunks([
opcodes.OP_DUP, ops.OP_DUP,
opcodes.OP_HASH160, ops.OP_HASH160,
hash, hash,
opcodes.OP_EQUALVERIFY, ops.OP_EQUALVERIFY,
opcodes.OP_CHECKSIG ops.OP_CHECKSIG
]) ])
} }
@ -177,9 +177,9 @@ function scriptHashOutput(hash) {
enforceType('Buffer', hash) enforceType('Buffer', hash)
return Script.fromChunks([ return Script.fromChunks([
opcodes.OP_HASH160, ops.OP_HASH160,
hash, hash,
opcodes.OP_EQUAL ops.OP_EQUAL
]) ])
} }
@ -195,10 +195,10 @@ function multisigOutput(m, pubKeys) {
var n = pubKeys.length var n = pubKeys.length
return Script.fromChunks([].concat( return Script.fromChunks([].concat(
(opcodes.OP_1 - 1) + m, (ops.OP_1 - 1) + m,
pubKeyBuffers, pubKeyBuffers,
(opcodes.OP_1 - 1) + n, (ops.OP_1 - 1) + n,
opcodes.OP_CHECKMULTISIG ops.OP_CHECKMULTISIG
)) ))
} }
@ -231,14 +231,14 @@ function multisigInput(signatures, scriptPubKey) {
var mOp = scriptPubKey.chunks[0] var mOp = scriptPubKey.chunks[0]
var nOp = scriptPubKey.chunks[scriptPubKey.chunks.length - 2] var nOp = scriptPubKey.chunks[scriptPubKey.chunks.length - 2]
var m = mOp - (opcodes.OP_1 - 1) var m = mOp - (ops.OP_1 - 1)
var n = nOp - (opcodes.OP_1 - 1) var n = nOp - (ops.OP_1 - 1)
assert(signatures.length >= m, 'Not enough signatures provided') assert(signatures.length >= m, 'Not enough signatures provided')
assert(signatures.length <= n, 'Too many signatures provided') assert(signatures.length <= n, 'Too many signatures provided')
} }
return Script.fromChunks([].concat(opcodes.OP_0, signatures)) return Script.fromChunks([].concat(ops.OP_0, signatures))
} }
module.exports = { module.exports = {