Merge pull request #366 from sfackler/lit-code-size

Add a separate path for messages with no format arguments

src/lib.rs

@@ -1420,6 +1420,25 @@ pub fn __private_api_log(
     );
 }
 
+// WARNING: this is not part of the crate's public API and is subject to change at any time
+#[doc(hidden)]
+pub fn __private_api_log_lit(
+    message: &str,
+    level: Level,
+    &(target, module_path, file, line): &(&str, &'static str, &'static str, u32),
+) {
+    logger().log(
+        &Record::builder()
+            .args(format_args!("{}", message))
+            .level(level)
+            .target(target)
+            .module_path_static(Some(module_path))
+            .file_static(Some(file))
+            .line(Some(line))
+            .build(),
+    );
+}
+
 // WARNING: this is not part of the crate's public API and is subject to change at any time
 #[doc(hidden)]
 pub fn __private_api_enabled(level: Level, target: &str) -> bool {

src/macros.rs

@@ -47,6 +47,17 @@ macro_rules! log {
 #[doc(hidden)]
 macro_rules! log_impl {
     // End of macro input
+    (target: $target:expr, $lvl:expr, ($message:expr)) => {
+        let lvl = $lvl;
+        if lvl <= $crate::STATIC_MAX_LEVEL && lvl <= $crate::max_level() {
+            $crate::__private_api_log_lit(
+                $message,
+                lvl,
+                &($target, __log_module_path!(), __log_file!(), __log_line!()),
+            );
+        }
+    };
+
     (target: $target:expr, $lvl:expr, ($($arg:expr),*)) => {
         let lvl = $lvl;
         if lvl <= $crate::STATIC_MAX_LEVEL && lvl <= $crate::max_level() {