@netlify/build/lib/error/build.js

Netlify build module

import safeJsonStringify from 'safe-json-stringify';
import { CUSTOM_ERROR_KEY } from './info.js';
// Retrieve error information from child process and re-build it in current
// process. We need this since errors static properties are not kept by
// `v8.serialize()`.
export const jsonToError = function ({ name, message, stack, ...errorProps }) {
    const error = new Error('');
    assignErrorProps(error, { name, message, stack });
    // Assign static error properties (if any)
    // We need to mutate the `error` directly to preserve its `name`, `stack`, etc.
    Object.assign(error, errorProps);
    return error;
};
// Make sure `name`, `message` and `stack` are not enumerable
const assignErrorProps = function (error, values) {
    ERROR_PROPS.forEach((name) => {
        assignErrorProp(error, name, values[name]);
    });
};
const ERROR_PROPS = ['name', 'message', 'stack'];
const assignErrorProp = function (error, name, value) {
    // `Object.defineProperty()` requires direct mutation
    Object.defineProperty(error, name, { value, enumerable: false, writable: true, configurable: true });
};
// Inverse of `jsonToError()`.
export const errorToJson = function (error) {
    const { name, message, stack, [CUSTOM_ERROR_KEY]: customError, ...errorProps } = error;
    // diagnosticText is not enumerable in TSError, so we need to grab it manually. destructuring won't work.
    if (error.diagnosticText) {
        errorProps.diagnosticText = error.diagnosticText;
    }
    return {
        ...safeJsonStringify.ensureProperties(errorProps),
        ...safeJsonStringify.ensureProperties({ name, message, stack, [CUSTOM_ERROR_KEY]: customError }),
    };
};