50 lines
1.6 KiB
TypeScript
50 lines
1.6 KiB
TypeScript
const typeforce = require('typeforce')
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const UINT31_MAX: number = Math.pow(2, 31) - 1
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export function UInt31 (value: number): boolean {
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return typeforce.UInt32(value) && value <= UINT31_MAX
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}
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export function BIP32Path (value: string): boolean {
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return typeforce.String(value) && !!value.match(/^(m\/)?(\d+'?\/)*\d+'?$/)
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}
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BIP32Path.toJSON = function () { return 'BIP32 derivation path' }
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const SATOSHI_MAX: number = 21 * 1e14
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export function Satoshi (value: number): boolean {
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return typeforce.UInt53(value) && value <= SATOSHI_MAX
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}
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// external dependent types
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export const ECPoint = typeforce.quacksLike('Point')
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// exposed, external API
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export const Network = typeforce.compile({
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messagePrefix: typeforce.oneOf(typeforce.Buffer, typeforce.String),
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bip32: {
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public: typeforce.UInt32,
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private: typeforce.UInt32
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},
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pubKeyHash: typeforce.UInt8,
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scriptHash: typeforce.UInt8,
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wif: typeforce.UInt8
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})
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export const Buffer256bit = typeforce.BufferN(32)
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export const Hash160bit = typeforce.BufferN(20)
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export const Hash256bit = typeforce.BufferN(32)
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export const Number = typeforce.Number
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export const Array = typeforce.Array
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export const Boolean = typeforce.Boolean
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export const String = typeforce.String
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export const Buffer = typeforce.Buffer
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export const Hex = typeforce.Hex
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export const maybe = typeforce.maybe
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export const tuple = typeforce.tuple
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export const UInt8 = typeforce.UInt8
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export const UInt32 = typeforce.UInt32
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export const Function = typeforce.Function
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export const BufferN = typeforce.BufferN
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export const Null = typeforce.Null
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export const oneOf = typeforce.oneOf
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