From 6305d094ac61ed6e437537b93f4e587b415678c9 Mon Sep 17 00:00:00 2001
From: Florian Diebold <florian.diebold@freiheit.com>
Date: Fri, 13 Mar 2020 15:18:17 +0100
Subject: Attempt to implement ranking of rules when none matches perfectly
 (wip)

---
 crates/ra_mbe/src/mbe_expander/matcher.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'crates/ra_mbe/src/mbe_expander')

diff --git a/crates/ra_mbe/src/mbe_expander/matcher.rs b/crates/ra_mbe/src/mbe_expander/matcher.rs
index f9d4952c6..52f1ac252 100644
--- a/crates/ra_mbe/src/mbe_expander/matcher.rs
+++ b/crates/ra_mbe/src/mbe_expander/matcher.rs
@@ -65,7 +65,7 @@ macro_rules! bail {
     };
 }
 
-pub(super) fn match_(pattern: &tt::Subtree, src: &tt::Subtree) -> ExpandResult<Bindings> {
+pub(super) fn match_(pattern: &tt::Subtree, src: &tt::Subtree) -> ExpandResult<(Bindings, usize)> {
     assert!(pattern.delimiter == None);
 
     let mut res = Bindings::default();
@@ -77,7 +77,7 @@ pub(super) fn match_(pattern: &tt::Subtree, src: &tt::Subtree) -> ExpandResult<B
         err = Some(err!("leftover tokens"));
     }
 
-    (res, err)
+    ((res, src.len()), err)
 }
 
 fn match_subtree(
-- 
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