add support for closures getters without parsens

Author: ranfdev

glib-macros/src/lib.rs

@@ -871,7 +871,7 @@ pub fn derive_props(input: TokenStream) -> proc_macro::TokenStream {
         let name = &p.name;
         let ident = &p.field.as_ref().unwrap().ident;
         match &p.get {
-            Some(MaybeCustomFn::CustomFn(expr)) => Some(quote!(#name => #expr(&self))),
+            Some(MaybeCustomFn::CustomFn(expr)) => Some(quote!(#name => (#expr)(&self))),
             Some(MaybeCustomFn::DefaultFn) => Some(quote!(#name => self.#ident.get())),
             None => None,
         }
@@ -880,7 +880,7 @@ pub fn derive_props(input: TokenStream) -> proc_macro::TokenStream {
         let name = &p.name;
         let ident = &p.field.as_ref().unwrap().ident;
         match &p.set {
-            Some(MaybeCustomFn::CustomFn(expr)) => Some(quote!(#name => #expr(&self, value))),
+            Some(MaybeCustomFn::CustomFn(expr)) => Some(quote!(#name => (#expr)(&self, value))),
             Some(MaybeCustomFn::DefaultFn) => Some(quote!(#name => self.#ident.set(value))),
             None => None,
         }

glib-macros/tests/props.rs

@@ -26,7 +26,9 @@ fn props() {
                 #[prop(get, set = Self::set_fizz, name = "fizz")]
                 fizz: RefCell<String>,
                 author: RefCell<Author>,
-                #[prop(get = Self::get_author_name, set = Self::set_author_name)]
+                #[prop(
+                    get = |t: &Self| t.author.borrow().name.to_value(), 
+                    set = Self::set_author_name)]
                 author_name: PhantomData<String>,
             }
 
@@ -37,9 +39,6 @@ fn props() {
             }
 
             impl Foo {
-                fn get_author_name(&self) -> glib::Value {
-                    self.author.borrow().name.to_value()
-                }
                 fn set_author_name(&self, value: &glib::Value) {
                     self.author.borrow_mut().name = value.get().unwrap();
                 }