From 8ecab378debdfd1f65d964dd26fd40ffd9945ba5 Mon Sep 17 00:00:00 2001
From: Ed Page <eopage@gmail.com>
Date: Tue, 1 Aug 2023 16:45:25 -0500
Subject: [PATCH] feat(error): Impl AddContext for ErrMode

---
 src/combinator/parser.rs | 2 +-
 src/error.rs             | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/combinator/parser.rs b/src/combinator/parser.rs
index bf848494..c6241f91 100644
--- a/src/combinator/parser.rs
+++ b/src/combinator/parser.rs
@@ -838,7 +838,7 @@ where
         trace(name, move |i: &mut I| {
             (self.parser)
                 .parse_next(i)
-                .map_err(|err| err.map(|err| err.add_context(i, self.context.clone())))
+                .map_err(|err| err.add_context(i, self.context.clone()))
         })
         .parse_next(i)
     }
diff --git a/src/error.rs b/src/error.rs
index 765a2cb3..93ad2e09 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -210,6 +210,13 @@ where
     }
 }
 
+impl<I, C, E: AddContext<I, C>> AddContext<I, C> for ErrMode<E> {
+    #[inline]
+    fn add_context(self, input: &I, ctx: C) -> Self {
+        self.map(|err| err.add_context(input, ctx))
+    }
+}
+
 impl<T: Clone> ErrMode<InputError<T>> {
     /// Maps `ErrMode<InputError<T>>` to `ErrMode<InputError<U>>` with the given `F: T -> U`
     pub fn map_input<U: Clone, F>(self, f: F) -> ErrMode<InputError<U>>