59 lines
1.7 KiB
JavaScript
59 lines
1.7 KiB
JavaScript
var BufferReader = require('./bufferreader');
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var BufferWriter = require('./bufferwriter');
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var Varint = require('./varint');
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var Script = require('./script');
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var Txin = function Txin(txidbuf, txoutnum, varint, script, seqnum) {
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if (!(this instanceof Txin))
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return new Txin(txidbuf, txoutnum, varint, script, seqnum);
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if (Buffer.isBuffer(txidbuf)) {
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this.txidbuf = txidbuf;
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this.txoutnum = txoutnum;
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this.varint = varint;
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this.script = script;
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this.seqnum = seqnum;
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} else if (txidbuf) {
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var obj = txidbuf;
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this.set(obj);
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}
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};
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Txin.prototype.set = function(obj) {
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this.txidbuf = obj.txidbuf || this.txidbuf;
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this.txoutnum = typeof obj.txoutnum !== 'undefined' ? obj.txoutnum : this.txoutnum;
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this.varint = typeof obj.varint !== 'undefined' ? obj.varint : this.varint;
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this.script = obj.script || this.script;
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this.seqnum = typeof obj.seqnum !== 'undefined' ? obj.seqnum : this.seqnum;
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return this;
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};
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Txin.prototype.fromBuffer = function(buf) {
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return this.fromBufferReader(BufferReader(buf));
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};
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Txin.prototype.fromBufferReader = function(br) {
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this.txidbuf = br.buffer(32);
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this.txoutnum = br.readUInt32LE();
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this.varint = Varint(br.readVarintBuf());
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this.script = Script().fromBuffer(br.buffer(this.varint.toNumber()));
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this.seqnum = br.readUInt32LE();
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return this;
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};
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Txin.prototype.toBuffer = function() {
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return this.toBufferWriter().concat();
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};
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Txin.prototype.toBufferWriter = function(bw) {
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if (!bw)
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bw = new BufferWriter();
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bw.write(this.txidbuf);
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bw.writeUInt32LE(this.txoutnum);
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bw.write(this.varint.buf);
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bw.write(this.script.toBuffer());
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bw.writeUInt32LE(this.seqnum);
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return bw;
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};
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module.exports = Txin;
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