@eddaic/nestjs-decorators/int/transformer/big-int.transformer.js

Additional decorators intended for use with NestJS framework.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.transformBigInt = transformBigInt;
exports.TransformBigInt = TransformBigInt;
const class_transformer_1 = require("class-transformer");
const class_validator_1 = require("class-validator");
const util_1 = require("../util");
const validator_1 = require("../validator");
function transformBigInt(value, options) {
    if (typeof value === 'bigint') {
        return value;
    }
    if ((0, validator_1.isBigInt)(value)) {
        if (typeof value === 'bigint') {
            return value;
        }
        else if (typeof value === 'string' ||
            typeof value === 'number' ||
            typeof value === 'boolean') {
            return BigInt(value);
        }
        else {
            return null;
        }
    }
    else if (options?.rounding !== undefined && (0, class_validator_1.isNumber)(value)) {
        return BigInt((0, util_1.round)(value, options.rounding));
    }
    else {
        return null;
    }
}
/**
 * Transform value into bigint using specified options. If the value
 * cannot be converted into bigint, null is returned.
 *
 * Otherwise a the value will be returned rounded as necessary
 * using the specified rounding policy.
 * @param options {@link TransformIntOptions}
 * @returns
 */
function TransformBigInt(options) {
    return (0, class_transformer_1.Transform)(({ value }) => transformBigInt(value, options), options);
}