92 lines
1.9 KiB
JavaScript
92 lines
1.9 KiB
JavaScript
/**
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* input.js - input object for bcoin
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* Copyright (c) 2014-2015, Fedor Indutny (MIT License)
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* https://github.com/indutny/bcoin
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*/
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var bn = require('bn.js');
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var bcoin = require('../bcoin');
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var utils = bcoin.utils;
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/**
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* Input
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*/
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function Input(options) {
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var tx = options.tx;
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var lock;
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if (!(this instanceof Input))
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return new Input(options);
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if (!tx)
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throw new Error('No TX passed into Input.');
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this.out = {
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tx: options.out.tx || null,
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hash: options.out.hash || null,
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index: options.out.index
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};
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this.script = options.script ? options.script.slice() : [];
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this.seq = options.seq === undefined ? 0xffffffff : options.seq;
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if (options.script && options.script._raw)
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utils.hidden(this.script, '_raw', options.script._raw);
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if (this.output) {
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lock = this.lock;
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if (lock >= 0) {
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if (tx._lock === 0)
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tx.lock = Math.max(lock, tx.lock);
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if (!bcoin.script.spendable(this.output.script, tx.lock))
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throw new Error('Cannot spend ' + utils.revHex(this.out.hash));
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}
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}
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if (tx.lock !== 0) {
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if (options.seq === undefined)
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this.seq = 0;
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}
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}
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Input.prototype.__defineGetter__('data', function() {
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return bcoin.tx.getInputData(this);
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});
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Input.prototype.__defineGetter__('addr', function() {
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return this.data.addr;
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});
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Input.prototype.__defineGetter__('type', function() {
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return this.data.type;
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});
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Input.prototype.__defineGetter__('lock', function() {
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if (!this.output)
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return;
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return this.output.lock;
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});
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Input.prototype.__defineGetter__('output', function() {
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if (!this.out.tx)
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return;
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return this.out.tx.outputs[this.out.index];
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});
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Input.prototype.__defineGetter__('value', function() {
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if (!this.output)
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return;
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return this.output.value;
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});
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Input.prototype.__defineGetter__('tx', function() {
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return this.out.tx;
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});
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/**
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* Expose
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*/
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module.exports = Input;
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