You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1.1 KiB
47 lines
1.1 KiB
3 months ago
|
'use strict';
|
||
|
|
|
||
|
|
const { Long } = require('bson');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Given a value, cast it to a BigInt, or throw an `Error` if the value
|
||
|
|
* cannot be casted. `null` and `undefined` are considered valid.
|
||
|
|
*
|
||
|
|
* @param {Any} value
|
||
|
|
* @return {Number}
|
||
|
|
* @throws {Error} if `value` is not one of the allowed values
|
||
|
|
* @api private
|
||
|
|
*/
|
||
|
|
|
||
|
|
const MAX_BIGINT = 9223372036854775807n;
|
||
|
|
const MIN_BIGINT = -9223372036854775808n;
|
||
|
|
const ERROR_MESSAGE = `Mongoose only supports BigInts between ${MIN_BIGINT} and ${MAX_BIGINT} because MongoDB does not support arbitrary precision integers`;
|
||
|
|
|
||
|
|
module.exports = function castBigInt(val) {
|
||
|
|
if (val == null) {
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
if (val === '') {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
if (typeof val === 'bigint') {
|
||
|
|
if (val > MAX_BIGINT || val < MIN_BIGINT) {
|
||
|
|
throw new Error(ERROR_MESSAGE);
|
||
|
|
}
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (val instanceof Long) {
|
||
|
|
return val.toBigInt();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (typeof val === 'string' || typeof val === 'number') {
|
||
|
|
val = BigInt(val);
|
||
|
|
if (val > MAX_BIGINT || val < MIN_BIGINT) {
|
||
|
|
throw new Error(ERROR_MESSAGE);
|
||
|
|
}
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
|
||
|
|
throw new Error(`Cannot convert value to BigInt: "${val}"`);
|
||
|
|
};
|