rune: Clean up how protocols are registered

rune-rs · Nov 1, 2024 · 0a1d4c5 · 0a1d4c5
1 parent f49d1da
commit 0a1d4c5
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Showing 10 changed files with 187 additions and 173 deletions.
diff --git a/book/src/traits.md b/book/src/traits.md
@@ -121,16 +121,8 @@ let mut t = m.define_trait(["Iterator"])?;
 
 t.handler(|cx| {
     let next = cx.find(Protocol::NEXT)?;
-    cx.function_handler("next", &next)?;
-
-    let size_hint = if let Some(size_hint) = cx.try_find(Protocol::SIZE_HINT)? {
-        cx.function_handler("size_hint", &size_hint)?;
-        size_hint
-    } else {
-        let size_hint = cx.function("size_hint", |_: Value| (0usize, None::<usize>))?;
-        cx.function_handler(Protocol::SIZE_HINT, &size_hint)?;
-        size_hint
-    };
+
+    let size_hint = cx.find_or_define(Protocol::SIZE_HINT, |_: Value| (0usize, None::<usize>))?;
 
     /* more methods */
     Ok(())