1 files changed, 23 insertions, 8 deletions

diff --git a/crates/ra_assists/src/assists/add_impl.rs b/crates/ra_assists/src/assists/add_impl.rs
index 94801fbc9..7da0cfd0d 100644
--- a/crates/ra_assists/src/assists/add_impl.rs
+++ b/crates/ra_assists/src/assists/add_impl.rs
@@ -1,5 +1,3 @@
-//! FIXME: write short doc here
-
 use format_buf::format;
 use hir::db::HirDatabase;
 use join_to_string::join;
@@ -10,10 +8,29 @@ use ra_syntax::{
 
 use crate::{Assist, AssistCtx, AssistId};
 
-pub(crate) fn add_impl(mut ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> {
-    let nominal = ctx.node_at_offset::<ast::NominalDef>()?;
+// Assist: add_impl
+//
+// Adds a new inherent impl for a type.
+//
+// ```
+// struct Ctx<T: Clone> {
+//      data: T,<|>
+// }
+// ```
+// ->
+// ```
+// struct Ctx<T: Clone> {
+//      data: T,
+// }
+//
+// impl<T: Clone> Ctx<T> {
+//
+// }
+// ```
+pub(crate) fn add_impl(ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> {
+    let nominal = ctx.find_node_at_offset::<ast::NominalDef>()?;
     let name = nominal.name()?;
-    ctx.add_action(AssistId("add_impl"), "add impl", |edit| {
+    ctx.add_assist(AssistId("add_impl"), "add impl", |edit| {
         edit.target(nominal.syntax().text_range());
         let type_params = nominal.type_param_list();
         let start_offset = nominal.syntax().text_range().end();
@@ -37,9 +54,7 @@ pub(crate) fn add_impl(mut ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> {
         edit.set_cursor(start_offset + TextUnit::of_str(&buf));
         buf.push_str("\n}");
         edit.insert(start_offset, buf);
-    });
-
-    ctx.build()
+    })
 }
 
 #[cfg(test)]