SSR: Allow `self` in patterns.

It's now consistent with other variables in that if the pattern
references self, only the `self` in scope where the rule is invoked will
be accepted. Since `self` doesn't work the same as other paths, this is
implemented by restricting the search to just the current function.
Prior to this change (since path resolution was implemented), having
self in a pattern would just result in no matches.

1 files changed, 1 insertions, 6 deletions

diff --git a/crates/ra_ssr/src/lib.rs b/crates/ra_ssr/src/lib.rs
index 73abfecb2..c780b460a 100644
--- a/crates/ra_ssr/src/lib.rs
+++ b/crates/ra_ssr/src/lib.rs
@@ -66,12 +66,7 @@ impl<'db> MatchFinder<'db> {
         restrict_ranges.retain(|range| !range.range.is_empty());
         let sema = Semantics::new(db);
         let resolution_scope = resolving::ResolutionScope::new(&sema, lookup_context);
-        MatchFinder {
-            sema: Semantics::new(db),
-            rules: Vec::new(),
-            resolution_scope,
-            restrict_ranges,
-        }
+        MatchFinder { sema, rules: Vec::new(), resolution_scope, restrict_ranges }
     }
 
     /// Constructs an instance using the start of the first file in `db` as the lookup context.