Add num-traits support for enums

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "raylib-ffi"
-version = "5.0.0"
+version = "5.0.1"
 authors = ["Evan Pratten <ewpratten@gmail.com>"]
 edition = "2021"
 description = "Automatic raw Rust bindings to raylib"
@@ -18,6 +18,10 @@ exclude = [
 ]
 build = "build/main.rs"
 
+[dependencies]
+num-traits = "0.2.17"
+num-derive = "0.4.1"
+
 [build-dependencies]
 bindgen = "0.69.1"
 cmake = "^0.1.49"

build/bind.rs

@@ -85,7 +85,7 @@ pub fn generate_bindings(header_file: &str) {
     // Construct a builder for generating bindings
     let mut builder = bindgen::Builder::default()
         .header(header_file)
-        .parse_callbacks(Box::new(bindgen::CargoCallbacks))
+        .parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
         .blocklist_item("DEG2RAD")
         .blocklist_item("PI")
         .blocklist_item("RAD2DEG")

build/wrap/enums.rs

@@ -63,7 +63,7 @@ pub fn wrap_exposed_enums(api_defs: RayLibApiDefinition) {
 
         // Write the enum declaration
         lines.push("#[repr(C)]".to_string());
-        lines.push("#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]".to_string());
+        lines.push("#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, num_derive::FromPrimitive, num_derive::ToPrimitive)]".to_string());
         lines.push(format!("pub enum {} {{", en.name));
 
         // Write each enum variant
@@ -94,13 +94,6 @@ pub fn wrap_exposed_enums(api_defs: RayLibApiDefinition) {
 
         // Close the enum declaration
         lines.push("}".to_string());
-
-        // Write a conversion function
-        lines.push(format!("impl Into<usize> for {} {{", en.name));
-        lines.push(format!("\tfn into(self) -> usize {{"));
-        lines.push(format!("\t\tself as usize"));
-        lines.push(format!("\t}}"));
-        lines.push(format!("}}"));
     }
 
     // Write the output file