Skip to content

Commit

Permalink
cherry-pick(#15694): fix(esm loader): support Node 18.6 (#15698)
Browse files Browse the repository at this point in the history
A small change in the API requires `shortCircuit: true` when returning the
transformed source.
Another API change removes third argument from the chained resolve/load,
but passing three instead of two still works.
  • Loading branch information
dgozman committed Jul 15, 2022
1 parent b2e3c8c commit ec9d2db
Showing 1 changed file with 8 additions and 3 deletions.
11 changes: 8 additions & 3 deletions packages/playwright-test/src/experimentalLoader.ts
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,9 @@ import fs from 'fs';
import url from 'url';
import { transformHook, resolveHook, belongsToNodeModules } from './transform';

async function resolve(specifier: string, context: { parentURL: string }, defaultResolve: any) {
// Node < 18.6: defaultResolve takes 3 arguments.
// Node >= 18.6: nextResolve from the chain takes 2 arguments.
async function resolve(specifier: string, context: { parentURL?: string }, defaultResolve: Function) {
if (context.parentURL && context.parentURL.startsWith('file://')) {
const filename = url.fileURLToPath(context.parentURL);
const resolved = resolveHook(filename, specifier);
Expand All @@ -28,7 +30,9 @@ async function resolve(specifier: string, context: { parentURL: string }, defaul
return defaultResolve(specifier, context, defaultResolve);
}

async function load(moduleUrl: string, context: any, defaultLoad: any) {
// Node < 18.6: defaultLoad takes 3 arguments.
// Node >= 18.6: nextLoad from the chain takes 2 arguments.
async function load(moduleUrl: string, context: { format?: string }, defaultLoad: Function) {
// Bail out for wasm, json, etc.
// non-js files have context.format === undefined
if (context.format !== 'commonjs' && context.format !== 'module' && context.format !== undefined)
Expand All @@ -49,7 +53,8 @@ async function load(moduleUrl: string, context: any, defaultLoad: any) {
const code = fs.readFileSync(filename, 'utf-8');
const source = transformHook(code, filename, moduleUrl);
// Output format is always the same as input format, if it was unknown, we always report modules.
return { format: context.format || 'module', source };
// shortCurcuit is required by Node >= 18.6 to designate no more loaders should be called.
return { format: context.format || 'module', source, shortCircuit: true };
}

module.exports = { resolve, load };

0 comments on commit ec9d2db

Please sign in to comment.