LBRYCommunity/bitcoinjs-lib
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types: enforce consistent type checking

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This commit is contained in:
Daniel Cousens 2014-09-15 14:21:01 +10:00
parent 166053a3e5
commit 35542e115d
10 changed files with 99 additions and 44 deletions

16
src/scripts.js
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@ -1,4 +1,5 @@
var assert = require('assert')
var enforceType = require('./types')
var opcodes = require('./opcodes')
// FIXME: use ECPubKey, currently the circular dependency breaks everything.
@ -18,7 +19,7 @@ var ECSignature = require('./ecsignature')
var Script = require('./script')
function classifyOutput(script) {
assert(script instanceof Script, 'Expected Script, got ', script)
enforceType(Script, script)
if (isPubKeyHashOutput.call(script)) {
return 'pubkeyhash'
@ -36,7 +37,7 @@ function classifyOutput(script) {
}
function classifyInput(script) {
assert(script instanceof Script, 'Expected Script, got ', script)
enforceType(Script, script)
if (isPubKeyHashInput.call(script)) {
return 'pubkeyhash'
@ -171,7 +172,7 @@ function pubKeyOutput(pubKey) {
// OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG
function pubKeyHashOutput(hash) {
assert(Buffer.isBuffer(hash), 'Expected Buffer, got ' + hash)
enforceType('Buffer', hash)
return Script.fromChunks([
opcodes.OP_DUP,
@ -184,7 +185,7 @@ function pubKeyHashOutput(hash) {
// OP_HASH160 {scriptHash} OP_EQUAL
function scriptHashOutput(hash) {
assert(Buffer.isBuffer(hash), 'Expected Buffer, got ' + hash)
enforceType('Buffer', hash)
return Script.fromChunks([
opcodes.OP_HASH160,
@ -195,7 +196,8 @@ function scriptHashOutput(hash) {
// m [pubKeys ...] n OP_CHECKMULTISIG
function multisigOutput(m, pubKeys) {
assert(Array.isArray(pubKeys), 'Expected Array, got ' + pubKeys)
enforceType('Array', pubKeys)
assert(pubKeys.length >= m, 'Not enough pubKeys provided')
var pubKeyBuffers = pubKeys.map(function(pubKey) {
@ -213,14 +215,14 @@ function multisigOutput(m, pubKeys) {
// {signature}
function pubKeyInput(signature) {
assert(Buffer.isBuffer(signature), 'Expected Buffer, got ' + signature)
enforceType('Buffer', signature)
return Script.fromChunks([signature])
}
// {signature} {pubKey}
function pubKeyHashInput(signature, pubKey) {
assert(Buffer.isBuffer(signature), 'Expected Buffer, got ' + signature)
enforceType('Buffer', signature)
return Script.fromChunks([signature, pubKey.toBuffer()])
}