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tx: refactor.

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This commit is contained in:
Christopher Jeffrey 2017-01-06 10:52:22 -08:00
parent 74c177d623
commit 122b4a9fb3
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GPG Key ID: 8962AB9DE6666BBD
1 changed files with 66 additions and 66 deletions
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132
lib/primitives/tx.js
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@ -1143,6 +1143,72 @@ TX.prototype.isFinal = function isFinal(height, ts) {
return true;
};
/**
* Verify the nLockTime of a transaction.
* @param {Number} index - Index of input being verified.
* @param {Number} locktime - Locktime to verify against.
* @returns {Boolean}
*/
TX.prototype.verifyLocktime = function verifyLocktime(index, locktime) {
var threshold = consensus.LOCKTIME_THRESHOLD;
var input = this.inputs[index];
if (!(
(this.locktime < threshold && locktime < threshold)
|| (this.locktime >= threshold && locktime >= threshold)
)) {
return false;
}
if (locktime > this.locktime)
return false;
if (input.sequence === 0xffffffff)
return false;
return true;
};
/**
* Verify the nSequence locktime of a transaction.
* @param {Number} index - Index of input being verified.
* @param {Number} sequence - Locktime to verify against.
* @returns {Boolean}
*/
TX.prototype.verifySequence = function verifySequence(index, sequence) {
var input = this.inputs[index];
var mask, seq1, seq2;
if ((sequence & consensus.SEQUENCE_DISABLE_FLAG) !== 0)
return true;
if (this.version < 2)
return false;
if (input.sequence & consensus.SEQUENCE_DISABLE_FLAG)
return false;
mask = consensus.SEQUENCE_TYPE_FLAG | consensus.SEQUENCE_MASK;
seq1 = input.sequence & mask;
seq2 = sequence & mask;
if (!(
(seq1 < consensus.SEQUENCE_TYPE_FLAG
&& seq2 < consensus.SEQUENCE_TYPE_FLAG)
|| (seq1 >= consensus.SEQUENCE_TYPE_FLAG
&& seq2 >= consensus.SEQUENCE_TYPE_FLAG)
)) {
return false;
}
if (seq2 > seq1)
return false;
return true;
};
/**
* Calculate legacy (inaccurate) sigop count.
* @returns {Number} sigop count
@ -2552,72 +2618,6 @@ TX.isTX = function isTX(obj) {
&& typeof obj.witnessHash === 'function';
};
/**
* Verify the nLockTime of a transaction.
* @param {Number} index - Index of input being verified.
* @param {Number} locktime - Locktime to verify against (max=u32).
* @returns {Boolean}
*/
TX.prototype.verifyLocktime = function verifyLocktime(index, locktime) {
var threshold = consensus.LOCKTIME_THRESHOLD;
var input = this.inputs[index];
if (!(
(this.locktime < threshold && locktime < threshold)
|| (this.locktime >= threshold && locktime >= threshold)
)) {
return false;
}
if (locktime > this.locktime)
return false;
if (input.sequence === 0xffffffff)
return false;
return true;
};
/**
* Verify the nSequence locktime of a transaction.
* @param {Number} index - Index of input being verified.
* @param {Number} sequence - Locktime to verify against (max=u32).
* @returns {Boolean}
*/
TX.prototype.verifySequence = function verifySequence(index, sequence) {
var input = this.inputs[index];
var mask, seq1, seq2;
if ((sequence & consensus.SEQUENCE_DISABLE_FLAG) !== 0)
return true;
if (this.version < 2)
return false;
if (input.sequence & consensus.SEQUENCE_DISABLE_FLAG)
return false;
mask = consensus.SEQUENCE_TYPE_FLAG | consensus.SEQUENCE_MASK;
seq1 = input.sequence & mask;
seq2 = sequence & mask;
if (!(
(seq1 < consensus.SEQUENCE_TYPE_FLAG
&& seq2 < consensus.SEQUENCE_TYPE_FLAG)
|| (seq1 >= consensus.SEQUENCE_TYPE_FLAG
&& seq2 >= consensus.SEQUENCE_TYPE_FLAG)
)) {
return false;
}
if (seq2 > seq1)
return false;
return true;
};
/*
* Helpers
*/