From a9f1134556c0776875f1ebea3a678e3bc217c954 Mon Sep 17 00:00:00 2001
From: timofey <tim@ongoteam.yaconnect.com>
Date: Tue, 1 Aug 2023 21:00:00 +0000
Subject: [PATCH] simplify `cast_resolved`

---
 src/rstd/cast.rs | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/src/rstd/cast.rs b/src/rstd/cast.rs
index 7d616d9..7ad3ede 100644
--- a/src/rstd/cast.rs
+++ b/src/rstd/cast.rs
@@ -188,13 +188,11 @@ fn cast_resolved<'a, Ctx: CastCtx<'a>, A: Mentionable<'a, Ctx>>(
     resolved: ResolutionResult<'a, Ctx, TypelessMentionable<'a, Ctx>>,
     factory: A::Fctr,
 ) -> ResolutionResult<'a, Ctx, A> {
-    match resolved {
-        Ok(typeless_mentionable) => match typeless_mentionable.cast(factory) {
-            Ok(mentionable) => Ok(Rc::new(mentionable)),
-            Err(parse_error) => Err(ResolutionError::Parse(parse_error)),
-        },
-        Err(error) => Err(cast_error::<Ctx, A>(error)),
-    }
+    resolved
+        .map_err(cast_error::<Ctx, A>)?
+        .cast(factory)
+        .map_err(ResolutionError::Parse)
+        .map(Rc::new)
 }
 
 fn cast_resolve<'a, Ctx: CastCtx<'a>, A: Mentionable<'a, Ctx>>(