From 1a235f748b54cbb8daea5cfed73be27a995a260e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=88=B1=E7=89=B9=E6=AF=8F=E7=BE=8A=E9=98=9F?=
 <t2026104239910027@eduxiji.net>
Date: Thu, 6 Aug 2026 11:48:30 +0800
Subject: [PATCH] =?UTF-8?q?feat(cli):=20compile=20=E5=AD=90=E5=91=BD?=
 =?UTF-8?q?=E4=BB=A4=E6=96=B0=E5=A2=9E=20--no-dce=20flag=20=E9=80=8F?=
 =?UTF-8?q?=E4=BC=A0=20Compiler=EF=BC=88D-10=EF=BC=89?=
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- Commands::Compile 追加 #[arg(long)] no_dce 字段
- compile(expr, file, no_dce) 按 flag 选择 Compiler::new().with_dce(false)
- eval/run/repl 走默认 enable_dce=true 不变
---
 crates/oxide_cli/src/main.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/crates/oxide_cli/src/main.rs b/crates/oxide_cli/src/main.rs
index 8fed07b..64b90aa 100644
--- a/crates/oxide_cli/src/main.rs
+++ b/crates/oxide_cli/src/main.rs
@@ -49,6 +49,8 @@ enum Commands {
         #[arg(short = 'e')]
         expr: Option<String>,
         file: Option<String>,
+        #[arg(long)]
+        no_dce: bool,
     },
     Bench {
         #[arg(default_value = "js")]
@@ -94,7 +96,7 @@ fn main() -> ExitCode {
             }
             ExitCode::SUCCESS
         }
-        Some(Commands::Compile { expr, file }) => compile(expr, file),
+        Some(Commands::Compile { expr, file, no_dce }) => compile(expr, file, no_dce),
         Some(Commands::Bench {
             mode,
             filter,
@@ -259,7 +261,7 @@ fn run(file: &str, kernel: &Arc<KernelCore>, pool: &Arc<VmPool>) -> ExitCode {
     }
 }
 
-fn compile(expr: Option<String>, file: Option<String>) -> ExitCode {
+fn compile(expr: Option<String>, file: Option<String>, no_dce: bool) -> ExitCode {
     let source = if let Some(code) = expr {
         code
     } else if let Some(path) = file {
@@ -289,7 +291,7 @@ fn compile(expr: Option<String>, file: Option<String>) -> ExitCode {
         }
     };
 
-    let compiler = Compiler::new();
+    let compiler = if no_dce { Compiler::new().with_dce(false) } else { Compiler::new() };
     match compiler.compile(&program) {
         Ok(module) => {
             print!("{module}");