Merge pull request #343 from silvanshade/snake_case_arguments

Snake case arguments

Author: madsmtm

Cargo.lock

@@ -17,3 +17,4 @@ tracing-subscriber = { version = "0.3.16", features = ["fmt"] }
 tracing-tree = { git = "https://github.com/madsmtm/tracing-tree.git" }
 proc-macro2 = "1.0.49"
 syn = { version = "1.0", features = ["parsing"] }
+heck = "0.4"

crates/header-translator/Cargo.toml

@@ -117,3 +117,12 @@ fn immediate_children<'tu>(
         EntityVisitResult::Continue
     });
 }
+
+pub(crate) fn to_snake_case(input: impl AsRef<str>) -> String {
+    let input = input.as_ref();
+    if input == "_" {
+        String::from("_")
+    } else {
+        heck::ToSnakeCase::to_snake_case(input)
+    }
+}

crates/header-translator/src/lib.rs

@@ -612,7 +612,8 @@ impl fmt::Display for Method {
 
         // Arguments
         for (param, arg_ty) in &self.arguments {
-            write!(f, "{}: {arg_ty},", handle_reserved(param))?;
+            let param = handle_reserved(&crate::to_snake_case(param));
+            write!(f, "{param}: {arg_ty},")?;
         }
         write!(f, ")")?;
 

crates/header-translator/src/method.rs

@@ -1273,7 +1273,8 @@ impl fmt::Display for Stmt {
                 write!(f, "{availability}")?;
                 write!(f, "    pub{unsafe_} fn {}(", id.name)?;
                 for (param, arg_ty) in arguments {
-                    write!(f, "{}: {arg_ty},", handle_reserved(param))?;
+                    let param = handle_reserved(&crate::to_snake_case(param));
+                    write!(f, "{param}: {arg_ty},")?;
                 }
                 write!(f, "){result_type}")?;