bot18
Version:
A high-frequency cryptocurrency trading bot by Zenbot creator @carlos8f
81 lines (59 loc) • 2.5 kB
JavaScript
;
/* ------------------------------------------------------------------------ */
module.exports = subclass (
/* Root class */
Error,
/* Derived class hierarchy */
{
'BaseError':{
'ExchangeError': {
'AuthenticationError': {
'PermissionDenied': {},
'AccountSuspended': {},
},
'BadResponse': {
'NullResponse': {},
},
'InsufficientFunds': {},
'InvalidAddress': {},
'InvalidOrder': {
'OrderNotFound': {},
'OrderNotCached': {},
'CancelPending': {},
},
'NotSupported': {},
},
'NetworkError': {
'DDoSProtection': {},
'ExchangeNotAvailable': {},
'InvalidNonce': {},
'RequestTimeout': {},
},
},
}
)
/* ------------------------------------------------------------------------ */
function subclass (BaseClass, classes, namespace = {}) {
for (const [$class, subclasses] of Object.entries (classes)) {
const Class = Object.assign (namespace, {
/* By creating a named property, we trick compiler to assign our class constructor function a name.
Otherwise, all our error constructors would be shown as [Function: Error] in the debugger! And
the super-useful `e.constructor.name` magic wouldn't work — we then would have no chance to
obtain a error type string from an error instance programmatically! */
[$class]: class extends BaseClass {
constructor (message) {
super (message)
/* A workaround to make `instanceof` work on custom Error classes in transpiled ES5.
See my blog post for the explanation of this hack:
https://medium.com/@xpl/javascript-deriving-from-error-properly-8d2f8f315801 */
this.constructor = Class
this.__proto__ = Class.prototype
this.message = message
}
}
})[$class]
subclass (Class, subclasses, namespace)
}
return namespace
}
/* ------------------------------------------------------------------------ */