1 files changed, 34 insertions, 0 deletions

diff --git a/crates/ra_editor/src/assists.rs b/crates/ra_editor/src/assists.rs
new file mode 100644
index 000000000..b6e6dd628
--- /dev/null
+++ b/crates/ra_editor/src/assists.rs
@@ -0,0 +1,34 @@
+//! This modules contains various "assits": suggestions for source code edits
+//! which are likely to occur at a given cursor positon. For example, if the
+//! cursor is on the `,`, a possible assist is swapping the elments around the
+//! comma.
+
+mod flip_comma;
+mod add_derive;
+mod add_impl;
+mod introduce_variable;
+mod change_visibility;
+
+use ra_text_edit::TextEdit;
+use ra_syntax::{Direction, SyntaxNodeRef, TextUnit};
+
+pub use self::{
+    flip_comma::flip_comma,
+    add_derive::add_derive,
+    add_impl::add_impl,
+    introduce_variable::introduce_variable,
+    change_visibility::change_visibility,
+};
+
+#[derive(Debug)]
+pub struct LocalEdit {
+    pub label: String,
+    pub edit: TextEdit,
+    pub cursor_position: Option<TextUnit>,
+}
+
+fn non_trivia_sibling(node: SyntaxNodeRef, direction: Direction) -> Option<SyntaxNodeRef> {
+    node.siblings(direction)
+        .skip(1)
+        .find(|node| !node.kind().is_trivia())
+}