LBRYCommunity/bitcoinjs-lib
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Typechecking indexes

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As a consequence, it will not allow accidentally double-hardened indexes.

It also won't allow strings or forgotten parameters.
This commit is contained in:
Karel Bilek 2016-02-06 17:12:13 +01:00
parent 75bd8331cd
commit 4a72001335
3 changed files with 51 additions and 0 deletions

5
src/types.js
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@ -12,9 +12,13 @@ function Hash256bit (value) { return nBuffer(value, 32) }
function Buffer256bit (value) { return nBuffer(value, 32) }
var UINT53_MAX = Math.pow(2, 53) - 1
var UINT31_MAX = Math.pow(2, 31) - 1
function UInt2 (value) { return (value & 3) === value }
function UInt8 (value) { return (value & 0xff) === value }
function UInt32 (value) { return (value >>> 0) === value }
function UInt31 (value) {
return UInt32(value) && value <= UINT31_MAX
}
function UInt53 (value) {
return typeforce.Number(value) &&
value >= 0 &&
@ -51,6 +55,7 @@ var types = {
Network: Network,
UInt2: UInt2,
UInt8: UInt8,
UInt31: UInt31,
UInt32: UInt32,
UInt53: UInt53
}