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Transaction: extract Script size calculations

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This commit is contained in:
Daniel Cousens 2015-02-19 12:11:37 +11:00
parent 49345748bb
commit dc253bb77c
1 changed files with 7 additions and 9 deletions
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16
src/transaction.js
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@ -68,7 +68,7 @@ Transaction.fromBuffer = function(buffer, __disableAssert) {
for (i = 0; i < voutLen; ++i) {
tx.outs.push({
value: readUInt64(),
script: readScript(),
script: readScript()
})
}
@ -252,20 +252,18 @@ Transaction.prototype.getId = function () {
}
Transaction.prototype.toBuffer = function () {
var txInSize = this.ins.reduce(function(a, x) {
return a + (40 + bufferutils.varIntSize(x.script.buffer.length) + x.script.buffer.length)
}, 0)
function scriptSize(script) {
var length = script.buffer.length
var txOutSize = this.outs.reduce(function(a, x) {
return a + (8 + bufferutils.varIntSize(x.script.buffer.length) + x.script.buffer.length)
}, 0)
return bufferutils.varIntSize(length) + length
}
var buffer = new Buffer(
8 +
bufferutils.varIntSize(this.ins.length) +
bufferutils.varIntSize(this.outs.length) +
txInSize +
txOutSize
this.ins.reduce(function(sum, input) { return sum + 40 + scriptSize(input.script) }, 0) +
this.outs.reduce(function(sum, output) { return sum + 8 + scriptSize(output.script) }, 0)
)
var offset = 0