From 12905e5b58f22df026ef30afa6f0bdf7319cbddd Mon Sep 17 00:00:00 2001
From: Florian Diebold <flodiebold@gmail.com>
Date: Sun, 5 Jan 2020 21:32:18 +0100
Subject: Some more refactoring

---
 crates/ra_hir_expand/src/lib.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'crates/ra_hir_expand/src')

diff --git a/crates/ra_hir_expand/src/lib.rs b/crates/ra_hir_expand/src/lib.rs
index 2fa5d5140..51c5f9623 100644
--- a/crates/ra_hir_expand/src/lib.rs
+++ b/crates/ra_hir_expand/src/lib.rs
@@ -322,3 +322,13 @@ impl InFile<SyntaxNode> {
         })
     }
 }
+
+impl<N: AstNode> InFile<N> {
+    pub fn descendants<T: AstNode>(self) -> impl Iterator<Item = InFile<T>> {
+        self.value.syntax().descendants().filter_map(T::cast).map(move |n| self.with_value(n))
+    }
+
+    pub fn syntax(&self) -> InFile<&SyntaxNode> {
+        self.with_value(self.value.syntax())
+    }
+}
-- 
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