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block: add type checking

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Daniel Cousens 2016-10-08 12:08:07 +11:00 • committed by Daniel Cousens
parent dd4596a44a
commit 4ee298c414
1 changed files with 3 additions and 0 deletions
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src/block.js
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@ -2,6 +2,8 @@ var bufferutils = require('./bufferutils')
var bcrypto = require('./crypto')
var bufferReverse = require('buffer-reverse')
var fastMerkleRoot = require('merkle-lib/fastRoot')
var typeforce = require('typeforce')
var types = require('./types')
var Transaction = require('./transaction')
@ -134,6 +136,7 @@ Block.calculateTarget = function (bits) {
}
Block.calculateMerkleRoot = function (transactions) {
typeforce([{ getHash: types.Function }], transactions)
if (transactions.length === 0) throw TypeError('Cannot compute merkle root for zero transactions')
var hashes = transactions.map(function (transaction) {