fix: resolve bug fixes

lib/index.mjs

@@ -29,12 +29,13 @@ const DEFAULT_CONDITIONS_SET = new Set(['node', 'import'])
 const BUILُTIN_MODULES = new Set(builtinModules)
 const DEFAULT_FROM = pathToFileURL(process.cwd())
 const DEFAULT_EXTENSIONS = ['.mjs', '.cjs', '.js', '.json']
+const NOT_FOUND_ERRORS = new Set(['ERR_MODULE_NOT_FOUND', 'ERR_UNSUPPORTED_DIR_IMPORT', 'MODULE_NOT_FOUND'])
 
-function _tryModuleResolve (id, from, conditions, throwNonNotFound) {
+function _tryModuleResolve (id, from, conditions) {
   try {
     return moduleResolve(id, from, conditions)
   } catch (err) {
-    if (throwNonNotFound && !['MODULE_NOT_FOUND', 'ERR_UNSUPPORTED_DIR_IMPORT'].includes(err.code)) {
+    if (!NOT_FOUND_ERRORS.has(err.code)) {
       throw err
     }
     return null
@@ -59,18 +60,16 @@ function _resolve (id, opts = {}) {
   const from = opts.from ? normalizeid(opts.from) : DEFAULT_FROM
 
   // Try simple resolve
-  // Might throw error if error is other than MODULE_NOT_FOUND
-  let resolved = _tryModuleResolve(id, from, conditionsSet, true)
+  let resolved = _tryModuleResolve(id, from, conditionsSet)
 
   // Try other extensions if not found
   if (!resolved) {
     for (const prefix of ['', '/index']) {
-      for (const ext of DEFAULT_EXTENSIONS || opts.extensions) {
+      for (const ext of opts.extensions || DEFAULT_EXTENSIONS) {
         resolved = _tryModuleResolve(id + prefix + ext, from, conditionsSet)
-        if (resolved) {
-          break
-        }
+        if (resolved) { break }
       }
+      if (resolved) { break }
     }
   }