Ensure removal of cfg_if is compatible with MSRV

rust-lang · Nov 26, 2022 · 969281e · 969281e
1 parent 2cf7354
commit 969281e
Showing 1 changed file with 51 additions and 26 deletions.
diff --git a/src/lib.rs b/src/lib.rs
@@ -1504,34 +1504,59 @@ pub mod __private_api {
 /// [`logger`]: fn.logger.html
 pub const STATIC_MAX_LEVEL: LevelFilter = MAX_LEVEL_INNER;
 
-#[rustfmt::skip]
-const MAX_LEVEL_INNER: LevelFilter = {
-    if cfg!(all(not(debug_assertions), feature = "release_max_level_off")) {
-        LevelFilter::Off
-    } else if cfg!(all(not(debug_assertions), feature = "release_max_level_error")) {
-        LevelFilter::Error
-    } else if cfg!(all(not(debug_assertions), feature = "release_max_level_warn")) {
-        LevelFilter::Warn
-    } else if cfg!(all(not(debug_assertions), feature = "release_max_level_info")) {
-        LevelFilter::Info
-    } else if cfg!(all(not(debug_assertions), feature = "release_max_level_debug")) {
-        LevelFilter::Debug
-    } else if cfg!(all(not(debug_assertions), feature = "release_max_level_trace")) {
-        LevelFilter::Trace
-    } else if cfg!(feature = "max_level_off") {
-        LevelFilter::Off
-    } else if cfg!(feature = "max_level_error") {
-        LevelFilter::Error
-    } else if cfg!(feature = "max_level_warn") {
-        LevelFilter::Warn
-    } else if cfg!(feature = "max_level_info") {
-        LevelFilter::Info
-    } else if cfg!(feature = "max_level_debug") {
-        LevelFilter::Debug
-    } else {
+const MAX_LEVEL_INNER: LevelFilter = get_max_level_inner();
+
+const fn get_max_level_inner() -> LevelFilter {
+    #[allow(unreachable_code)]
+    {
+        #[cfg(all(not(debug_assertions), feature = "release_max_level_off"))]
+        {
+            return LevelFilter::Off;
+        }
+        #[cfg(all(not(debug_assertions), feature = "release_max_level_error"))]
+        {
+            return LevelFilter::Error;
+        }
+        #[cfg(all(not(debug_assertions), feature = "release_max_level_warn"))]
+        {
+            return LevelFilter::Warn;
+        }
+        #[cfg(all(not(debug_assertions), feature = "release_max_level_info"))]
+        {
+            return LevelFilter::Info;
+        }
+        #[cfg(all(not(debug_assertions), feature = "release_max_level_debug"))]
+        {
+            return LevelFilter::Debug;
+        }
+        #[cfg(all(not(debug_assertions), feature = "release_max_level_trace"))]
+        {
+            return LevelFilter::Trace;
+        }
+        #[cfg(feature = "max_level_off")]
+        {
+            return LevelFilter::Off;
+        }
+        #[cfg(feature = "max_level_error")]
+        {
+            return LevelFilter::Error;
+        }
+        #[cfg(feature = "max_level_warn")]
+        {
+            return LevelFilter::Warn;
+        }
+        #[cfg(feature = "max_level_info")]
+        {
+            return LevelFilter::Info;
+        }
+        #[cfg(feature = "max_level_debug")]
+        {
+            return LevelFilter::Debug;
+        }
+
         LevelFilter::Trace
     }
-};
+}
 
 #[cfg(test)]
 mod tests {