Merge #110

110: Signature help r=matklad a=kjeremy

@matklad Once this is in shape I would like to add tests. I think a separate PR should be done for returning documentation information and markdown.

Fixes #102 

Co-authored-by: Jeremy A. Kolb <[email protected]>

2 files changed, 6 insertions, 2 deletions

diff --git a/crates/ra_syntax/src/ast/generated.rs b/crates/ra_syntax/src/ast/generated.rs
index ef7b5b1a1..48c9038dc 100644
--- a/crates/ra_syntax/src/ast/generated.rs
+++ b/crates/ra_syntax/src/ast/generated.rs
@@ -1387,7 +1387,11 @@ impl<'a> AstNode<'a> for PathExpr<'a> {
     fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
 }
 
-impl<'a> PathExpr<'a> {}
+impl<'a> PathExpr<'a> {
+    pub fn path(self) -> Option<Path<'a>> {
+        super::child_opt(self)
+    }
+}
 
 // PathPat
 #[derive(Debug, Clone, Copy)]
diff --git a/crates/ra_syntax/src/grammar.ron b/crates/ra_syntax/src/grammar.ron
index 9da0c2c13..a904f7505 100644
--- a/crates/ra_syntax/src/grammar.ron
+++ b/crates/ra_syntax/src/grammar.ron
@@ -342,7 +342,7 @@ Grammar(
         "TupleExpr": (),
         "ArrayExpr": (),
         "ParenExpr": (),
-        "PathExpr": (),
+        "PathExpr": (options: ["Path"]),
         "LambdaExpr": (
             options: [
                 "ParamList",