manually apply debug assertions flag for fullstack debug mode

packages/cli/src/server/fullstack/mod.rs

@@ -66,7 +66,7 @@ impl Platform for FullstackPlatform {
                 }
                 None => desktop_config.features = Some(vec![desktop_feature]),
             };
-            let _gaurd = FullstackServerEnvGuard::new(self.serve.debug);
+            let _gaurd = FullstackServerEnvGuard::new(&self.serve);
             self.desktop.rebuild(&desktop_config)
         };
         thread_handle
@@ -88,7 +88,7 @@ fn build_web(serve: ConfigOptsServe, target_directory: &std::path::Path) -> Resu
     };
     web_config.platform = Some(crate::cfg::Platform::Web);
 
-    let _gaurd = FullstackWebEnvGuard::new(web_config.debug);
+    let _gaurd = FullstackWebEnvGuard::new(&web_config);
     crate::cli::build::Build { build: web_config }.build(None, Some(target_directory))
 }
 
@@ -99,14 +99,21 @@ pub(crate) struct FullstackWebEnvGuard {
 }
 
 impl FullstackWebEnvGuard {
-    pub fn new(debug_mode: bool) -> Self {
+    pub fn new(serve: &ConfigOptsBuild) -> Self {
         Self {
-            old_rustflags: (!debug_mode).then(|| {
+            old_rustflags: (!serve.debug).then(|| {
                 let old_rustflags = std::env::var("RUSTFLAGS").unwrap_or_default();
+                let debug_assertions = if serve.release {
+                    ""
+                } else {
+                    " -C debug-assertions"
+                };
 
                 std::env::set_var(
                     "RUSTFLAGS",
-                    format!("{old_rustflags} -C debuginfo=none -C strip=debuginfo"),
+                    format!(
+                        "{old_rustflags} -C debuginfo=none -C strip=debuginfo{debug_assertions}"
+                    ),
                 );
                 old_rustflags
             }),
@@ -129,12 +136,20 @@ pub(crate) struct FullstackServerEnvGuard {
 }
 
 impl FullstackServerEnvGuard {
-    pub fn new(debug_mode: bool) -> Self {
+    pub fn new(debug_mode: bool, release_mode: bool) -> Self {
         Self {
             old_rustflags: (!debug_mode).then(|| {
                 let old_rustflags = std::env::var("RUSTFLAGS").unwrap_or_default();
+                let debug_assertions = if serve.release {
+                    ""
+                } else {
+                    " -C debug-assertions"
+                };
 
-                std::env::set_var("RUSTFLAGS", format!("{old_rustflags} -C opt-level=2"));
+                std::env::set_var(
+                    "RUSTFLAGS",
+                    format!("{old_rustflags} -C opt-level=2 {debug_assertions}"),
+                );
                 old_rustflags
             }),
         }