fix: report node when loc not found (#700)

Co-authored-by: JounQin <admin@1stg.me>

Author: ntnyq

.changeset/giant-bottles-sin.md

@@ -0,0 +1,5 @@
+---
+"eslint-plugin-prettier": patch
+---
+
+fix: report node when loc not found

eslint-plugin-prettier.js

@@ -13,6 +13,7 @@
  * @typedef {import('prettier').FileInfoOptions} FileInfoOptions
  * @typedef {import('prettier').Options} PrettierOptions
  * @typedef {PrettierOptions & { onDiskFilepath: string, parserMeta?: ObjectMetaProperties['meta'], parserPath?: string, usePrettierrc?: boolean }} Options
+ * @typedef {(source: string, options: Options, fileInfoOptions: FileInfoOptions) => string} PrettierFormat
  */
 
 'use strict';
@@ -39,7 +40,7 @@ const { INSERT, DELETE, REPLACE } = generateDifferences;
 
 // Lazily-loaded Prettier.
 /**
- * @type {(source: string, options: Options, fileInfoOptions: FileInfoOptions) => string}
+ * @type {PrettierFormat}
  */
 let prettierFormat;
 
@@ -160,11 +161,11 @@ const eslintPluginPrettier = {
         const source = sourceCode.text;
 
         return {
-          Program() {
+          Program(node) {
             if (!prettierFormat) {
               // Prettier is expensive to load, so only load it if needed.
-              prettierFormat = require('synckit').createSyncFn(
-                require.resolve('./worker'),
+              prettierFormat = /** @type {PrettierFormat} */ (
+                require('synckit').createSyncFn(require.resolve('./worker'))
               );
             }
 
@@ -213,7 +214,7 @@ const eslintPluginPrettier = {
               let message = 'Parsing error: ' + err.message;
 
               const error =
-                /** @type {SyntaxError & {codeFrame: string; loc: SourceLocation}} */ (
+                /** @type {SyntaxError & {codeFrame: string; loc?: SourceLocation}} */ (
                   err
                 );
 
@@ -226,10 +227,11 @@ const eslintPluginPrettier = {
               }
               if (error.loc) {
                 message = message.replace(/ \(\d+:\d+\)$/, '');
+                context.report({ message, loc: error.loc });
+              } else {
+                context.report({ message, node });
               }
 
-              context.report({ message, loc: error.loc });
-
               return;
             }
 

test/fixtures/invalid-prettierrc/.prettierrc.cjs

@@ -0,0 +1,3 @@
+import 'node:path'
+
+module.exports = {}

test/fixtures/invalid-prettierrc/test.js

@@ -0,0 +1 @@
+module.exports = {}

test/prettier.js

@@ -389,6 +389,21 @@ runFixture('eslint-plugin-svelte3/*.svelte', [[], []], svelteUnsupported);
  */
 runFixture('*.pug', [[]]);
 
+runFixture('invalid-prettierrc/*', [
+  [
+    {
+      column: 1,
+      endColumn: 20,
+      endLine: 1,
+      line: 1,
+      message: 'Parsing error: Cannot use import statement outside a module',
+      nodeType: 'Program',
+      ruleId: 'prettier/prettier',
+      severity: 2,
+    },
+  ],
+]);
+
 // ------------------------------------------------------------------------------
 //  Helpers
 // ------------------------------------------------------------------------------