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1.3 KiB
JavaScript

/**
* @typedef {import('./lib/errors.js').ErrnoException} ErrnoException
*/
import {defaultResolve} from './lib/resolve.js'
export {moduleResolve} from './lib/resolve.js'
/**
* Match `import.meta.resolve` except that `parent` is required (you can pass
* `import.meta.url`).
*
* @param {string} specifier
* The module specifier to resolve relative to parent
* (`/example.js`, `./example.js`, `../example.js`, `some-package`, `fs`,
* etc).
* @param {string} parent
* The absolute parent module URL to resolve from.
* You must pass `import.meta.url` or something else.
* @returns {string}
* Returns a string to a full `file:`, `data:`, or `node:` URL
* to the found thing.
*/
export function resolve(specifier, parent) {
if (!parent) {
throw new Error(
'Please pass `parent`: `import-meta-resolve` cannot ponyfill that'
)
}
try {
return defaultResolve(specifier, {parentURL: parent}).url
} catch (error) {
// See: <https://github.com/nodejs/node/blob/45f5c9b/lib/internal/modules/esm/initialize_import_meta.js#L34>
const exception = /** @type {ErrnoException} */ (error)
if (
(exception.code === 'ERR_UNSUPPORTED_DIR_IMPORT' ||
exception.code === 'ERR_MODULE_NOT_FOUND') &&
typeof exception.url === 'string'
) {
return exception.url
}
throw error
}
}