From cb3b14671c433624898f11923c2c8e6c22b106a7 Mon Sep 17 00:00:00 2001
From: coderiaser <coderaiser@cloudcmd.io>
Date: Wed, 26 Jun 2024 11:46:31 +0300
Subject: [PATCH] feature: @putout/plugin-remove-unused-expressions: use
 client: exclude (#211)

---
 packages/plugin-remove-unused-expressions/README.md          | 2 +-
 .../lib/remove-unused-expressions.js                         | 3 +++
 .../test/fixture/use-client.js                               | 1 +
 .../test/remove-unused-expressions.js                        | 5 +++++
 4 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 packages/plugin-remove-unused-expressions/test/fixture/use-client.js

diff --git a/packages/plugin-remove-unused-expressions/README.md b/packages/plugin-remove-unused-expressions/README.md
index 7153896481..3081c5642c 100644
--- a/packages/plugin-remove-unused-expressions/README.md
+++ b/packages/plugin-remove-unused-expressions/README.md
@@ -3,7 +3,7 @@
 [NPMIMGURL]: https://img.shields.io/npm/v/@putout/plugin-remove-unused-expressions.svg?style=flat&longCache=true
 [NPMURL]: https://npmjs.org/package/@putout/plugin-remove-unused-expressions"npm"
 
-🐊[**Putout**](https://github.com/coderaiser/putout) plugin adds ability to find and remove `unused expressions`.
+🐊[**Putout**](https://github.com/coderaiser/putout) plugin adds ability to find and remove `unused expressions`, excluding directives: [`use strict`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode) and [`use client`](https://react.dev/reference/rsc/use-client).
 
 ## Install
 
diff --git a/packages/plugin-remove-unused-expressions/lib/remove-unused-expressions.js b/packages/plugin-remove-unused-expressions/lib/remove-unused-expressions.js
index b2852f8aca..514e33b1f5 100644
--- a/packages/plugin-remove-unused-expressions/lib/remove-unused-expressions.js
+++ b/packages/plugin-remove-unused-expressions/lib/remove-unused-expressions.js
@@ -14,6 +14,9 @@ module.exports.traverse = ({push}) => ({
         if (path.node.value === 'use strict')
             return;
         
+        if (path.node.value === 'use client')
+            return;
+        
         push(path.parentPath);
     },
     ExpressionStatement(path) {
diff --git a/packages/plugin-remove-unused-expressions/test/fixture/use-client.js b/packages/plugin-remove-unused-expressions/test/fixture/use-client.js
new file mode 100644
index 0000000000..ef4af0a0c1
--- /dev/null
+++ b/packages/plugin-remove-unused-expressions/test/fixture/use-client.js
@@ -0,0 +1 @@
+'use client';
diff --git a/packages/plugin-remove-unused-expressions/test/remove-unused-expressions.js b/packages/plugin-remove-unused-expressions/test/remove-unused-expressions.js
index d8ca203c95..84b7e69ed3 100644
--- a/packages/plugin-remove-unused-expressions/test/remove-unused-expressions.js
+++ b/packages/plugin-remove-unused-expressions/test/remove-unused-expressions.js
@@ -73,3 +73,8 @@ test('remove unused expression: no report: iife', (t) => {
     t.noReport('iife');
     t.end();
 });
+
+test('remove unused expression: no report: use-client', (t) => {
+    t.noReport('use-client');
+    t.end();
+});