From ba4b68cf638c406388766afebaaa440a92327dd0 Mon Sep 17 00:00:00 2001
From: Boshen <1430279+Boshen@users.noreply.github.com>
Date: Wed, 4 Sep 2024 12:58:39 +0000
Subject: [PATCH] feat(minifier): remove parenthesized expression for dce
 (#5439)

relates #5436
---
 crates/oxc_minifier/src/options.rs                       | 7 ++++++-
 crates/oxc_minifier/tests/ast_passes/remove_dead_code.rs | 3 +++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/crates/oxc_minifier/src/options.rs b/crates/oxc_minifier/src/options.rs
index 30d88d41956ea..927d80ef83ada 100644
--- a/crates/oxc_minifier/src/options.rs
+++ b/crates/oxc_minifier/src/options.rs
@@ -93,6 +93,11 @@ impl CompressOptions {
     }
 
     pub fn dead_code_elimination() -> Self {
-        Self { fold_constants: true, remove_dead_code: true, ..Self::all_false() }
+        Self {
+            remove_syntax: true,
+            fold_constants: true,
+            remove_dead_code: true,
+            ..Self::all_false()
+        }
     }
 }
diff --git a/crates/oxc_minifier/tests/ast_passes/remove_dead_code.rs b/crates/oxc_minifier/tests/ast_passes/remove_dead_code.rs
index b0e8a3fe6bb7e..c5cacf8edbc8d 100644
--- a/crates/oxc_minifier/tests/ast_passes/remove_dead_code.rs
+++ b/crates/oxc_minifier/tests/ast_passes/remove_dead_code.rs
@@ -78,6 +78,9 @@ fn dce_if_statement() {
         "const a = { fn: function() { if (true) { foo; } } }",
         "const a = { fn: function() { { foo; } } }",
     );
+
+    // parenthesized
+    test("if (!!(false)) { REMOVE; } else { KEEP; }", "{ KEEP }");
 }
 
 #[test]