RanchiMall/fcoin
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rename utils.slice.

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This commit is contained in:
Christopher Jeffrey 2016-05-19 16:47:41 -07:00
parent 5d1c39bf41
commit 64830059d7
No known key found for this signature in database
GPG Key ID: 8962AB9DE6666BBD
3 changed files with 11 additions and 20 deletions
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4
lib/bcoin/script.js
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@ -1676,7 +1676,7 @@ Script.prototype.execute = function execute(stack, flags, tx, index, version) {
case opcodes.OP_INVERT: {
if (stack.length < 1)
throw new ScriptError('INVALID_STACK_OPERATION', op, ip);
val = utils.slice(stack.pop());
val = utils.copy(stack.pop());
for (i = 0; i < val.length; i++)
val[i] = ~val[i] & 0xff;
stack.push(val);
@ -1688,7 +1688,7 @@ Script.prototype.execute = function execute(stack, flags, tx, index, version) {
if (stack.length < 2)
throw new ScriptError('INVALID_STACK_OPERATION', op, ip);
v2 = stack.pop();
v1 = utils.slice(stack.pop());
v1 = utils.copy(stack.pop());
if (v1.length < v2.length) {
v3 = new Buffer(v2.length - v1.length);
v3.fill(0);

10
lib/bcoin/tx.js
View File

@ -201,7 +201,7 @@ TX.prototype.witnessHash = function witnessHash(enc) {
if (this.isCoinbase()) {
return enc === 'hex'
? constants.NULL_HASH
: utils.slice(constants.ZERO_HASH);
: utils.copy(constants.ZERO_HASH);
}
if (!this.hasWitness())
@ -451,7 +451,7 @@ TX.prototype.signatureHashV0 = function signatureHashV0(index, prev, type) {
// Bitcoind used to return 1 as an error code:
// it ended up being treated like a hash.
if (index >= copy.outputs.length)
return utils.slice(constants.ONE_HASH);
return utils.copy(constants.ONE_HASH);
// Drop all the outputs after the input index.
copy.outputs.length = index + 1;
@ -512,7 +512,7 @@ TX.prototype.signatureHashV1 = function signatureHashV1(index, prev, type) {
this._hashPrevouts = hashPrevouts;
}
} else {
hashPrevouts = utils.slice(constants.ZERO_HASH);
hashPrevouts = utils.copy(constants.ZERO_HASH);
}
if (!(type & constants.hashType.ANYONECANPAY)
@ -529,7 +529,7 @@ TX.prototype.signatureHashV1 = function signatureHashV1(index, prev, type) {
this._hashSequence = hashSequence;
}
} else {
hashSequence = utils.slice(constants.ZERO_HASH);
hashSequence = utils.copy(constants.ZERO_HASH);
}
if ((type & 0x1f) !== constants.hashType.SINGLE
@ -548,7 +548,7 @@ TX.prototype.signatureHashV1 = function signatureHashV1(index, prev, type) {
hashOutputs = bcoin.protocol.framer.output(this.outputs[index]);
hashOutputs = utils.dsha256(hashOutputs);
} else {
hashOutputs = utils.slice(constants.ZERO_HASH);
hashOutputs = utils.copy(constants.ZERO_HASH);
}
p.write32(this.version);

17
lib/bcoin/utils.js
View File

@ -70,23 +70,14 @@ utils.nop = function() {};
utils.gc = !utils.isBrowser && typeof gc === 'function' ? gc : utils.nop;
/**
* A slow buffer slice (will allocate a new buffer).
* Clone a buffer.
* @param {Buffer} data
* @param {Number?} start
* @param {Number?} end
* @returns {Buffer}
*/
utils.slice = function slice(data, start, end) {
var clone;
if (start != null)
data = data.slice(start, end);
clone = new Buffer(data.length);
utils.copy = function copy(data) {
var clone = new Buffer(data.length);
data.copy(clone, 0, 0, data.length);
return clone;
};
@ -917,7 +908,7 @@ utils.ip2version = function ip2version(ip, version) {
// Found an ipv4 address
if (ip.length - i === 6 && ip[i] === 0xff && ip[i + 1] === 0xff)
return utils.slice(ip, -4);
return utils.copy(ip.slice(-4));
// No ipv4 address
return new Buffer([0, 0, 0, 0]);