Fine-tune Catalog approach for button, checkbox, and svg

core/src/closure.rs

@@ -1,33 +0,0 @@
-//! Box closures with ease.
-//!
-//! These are just a bunch of types that wrap boxed closures with
-//! blanket [`From`] implementations for easy conversions.
-//!
-//! Mainly, it allows functions to take `Into<T>` where `T` may end
-//! up being a boxed closure.
-
-/// A boxed closure that takes `A` by reference and produces `O`.
-#[allow(missing_debug_implementations)]
-pub struct Unary<'a, A, O>(pub Box<dyn Fn(&A) -> O + 'a>);
-
-impl<'a, A, O, T> From<T> for Unary<'a, A, O>
-where
-    T: Fn(&A) -> O + 'a,
-{
-    fn from(f: T) -> Self {
-        Self(Box::new(f))
-    }
-}
-
-/// A boxed closure that takes `A` by reference and `B` by value and produces `O`.
-#[allow(missing_debug_implementations)]
-pub struct Binary<'a, A, B, O>(pub Box<dyn Fn(&A, B) -> O + 'a>);
-
-impl<'a, A, B, O, T> From<T> for Binary<'a, A, B, O>
-where
-    T: Fn(&A, B) -> O + 'a,
-{
-    fn from(f: T) -> Self {
-        Self(Box::new(f))
-    }
-}

core/src/lib.rs

@@ -19,7 +19,6 @@
 pub mod alignment;
 pub mod border;
 pub mod clipboard;
-pub mod closure;
 pub mod event;
 pub mod font;
 pub mod gradient;