module: fix require.resolve() crash on non-string paths · nodejs/node@a274b28

const {

codes: {

ERR_INVALID_ARG_TYPE,

ERR_INVALID_ARG_VALUE,

ERR_INVALID_MODULE_SPECIFIER,

ERR_REQUIRE_CYCLE_MODULE,

* @param {string} filename Absolute path to the file

*/

function stat(filename) {

// Guard against internal bugs where a non-string filename is passed in by mistake.

assert(typeof filename === 'string');

filename = path.toNamespacedPath(filename);

if (statCache !== null) {

const result = statCache.get(filename);

for (let i = 0; i < paths.length; i++) {

// Don't search further if path doesn't exist

const curPath = paths[i];

if (typeof curPath !== 'string') {

throw new ERR_INVALID_ARG_TYPE('paths', 'array of strings', paths);

}

if (insidePath && curPath && _stat(curPath) < 1) {

continue;

}

'use strict';

require('../common');

const assert = require('assert');

// Test invalid `paths` entries: Ensure non-string entries throw an error

{

const paths = [1, false, null, undefined, () => {}, {}];

paths.forEach((value) => {

assert.throws(

() => require.resolve('.', { paths: [value] }),

{

name: 'TypeError',

code: 'ERR_INVALID_ARG_TYPE',

}

);

});

}