Pass extensions to load as modules to Babel provider

Author: novemberborn

lib/worker/subprocess.js

@@ -112,19 +112,19 @@ ipc.options.then(options => {
 		handleUncaughtExceptions: false
 	});
 
+	const extensionsToLoadAsModules = Object.entries(options.moduleTypes)
+		.filter(([, type]) => type === 'module')
+		.map(([extension]) => extension);
+
 	// Install before processing options.require, so if helpers are added to the
 	// require configuration the *compiled* helper will be loaded.
 	let babelProvider;
 	if (options.babelState !== null) {
 		const {projectDir} = options;
-		babelProvider = babelManager({projectDir}).worker({state: options.babelState});
+		babelProvider = babelManager({projectDir}).worker({extensionsToLoadAsModules, state: options.babelState});
 		runner.powerAssert = babelProvider.powerAssert;
 	}
 
-	const extensionsToLoadAsModules = Object.entries(options.moduleTypes)
-		.filter(([, type]) => type === 'module')
-		.map(([extension]) => extension);
-
 	let requireFn = require;
 	const load = ref => {
 		for (const extension of extensionsToLoadAsModules) {

package-lock.json

@@ -110,7 +110,7 @@
 		"yargs": "^15.1.0"
 	},
 	"devDependencies": {
-		"@ava/babel": "^0.5.0",
+		"@ava/babel": "^0.6.0",
 		"@types/node": "^10.17.13",
 		"ansi-escapes": "^4.3.0",
 		"delay": "^4.3.0",