Allow head decorator and options via route decorator.

codegen/src/decorators/route.rs

@@ -290,5 +290,8 @@ method_decorator!(get_decorator, Get);
 method_decorator!(put_decorator, Put);
 method_decorator!(post_decorator, Post);
 method_decorator!(delete_decorator, Delete);
-method_decorator!(patch_decorator, Patch);
 method_decorator!(head_decorator, Head);
+method_decorator!(patch_decorator, Patch);
+
+// TODO: Allow this once Diesel incompatibility is fixed.
+// method_decorator!(options_decorator, Options);

codegen/src/lib.rs

@@ -160,5 +160,7 @@ pub fn plugin_registrar(reg: &mut Registry) {
         "delete" => delete_decorator,
         "head" => head_decorator,
         "patch" => patch_decorator
+        // TODO: Allow this once Diesel incompatibility is fixed. Fix docs too.
+        // "options" => options_decorator
     );
 }

codegen/src/parser/route.rs

@@ -134,8 +134,8 @@ impl RouteParams {
 fn is_valid_method(method: Method) -> bool {
     use rocket::http::Method::*;
     match method {
-        Get | Put | Post | Delete | Patch => true,
-        _ => false
+        Get | Put | Post | Delete | Head | Patch | Options => true,
+        Trace | Connect => false
     }
 }
 

codegen/tests/run-pass/empty-fn.rs

@@ -6,6 +6,7 @@ extern crate rocket;
 #[get("")]
 fn get() -> &'static str { "hi" }
 
-fn main() {
-    let _ = routes![get];
-}
+#[get("/")]
+fn get_empty() {  }
+
+fn main() { }

codegen/tests/run-pass/methods.rs

@@ -0,0 +1,28 @@
+#![feature(plugin)]
+#![plugin(rocket_codegen)]
+
+extern crate rocket;
+
+#[get("/")]
+fn get() {  }
+
+#[put("/")]
+fn put() {  }
+
+#[post("/")]
+fn post() {  }
+
+#[delete("/")]
+fn delete() {  }
+
+#[head("/")]
+fn head() {  }
+
+#[patch("/")]
+fn patch() {  }
+
+// TODO: Allow this once Diesel incompatibility is fixed.
+// #[options("/")]
+// fn options() {  }
+
+fn main() { }