Merge #889

889: Refactor assits r=matklad a=matklad

* assign unique IDs to assists so that clients could do custom stuff
* specify kinds for assists, 
* make introduce_variable a `refactoring.extract` and make it available only when expression is selected
* introduce marks to assists

Co-authored-by: Aleksey Kladov <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/crates/ra_assists/src/add_derive.rs b/crates/ra_assists/src/add_derive.rs
index 0556dd69c..e91b5eb8d 100644
--- a/crates/ra_assists/src/add_derive.rs
+++ b/crates/ra_assists/src/add_derive.rs
@@ -5,12 +5,12 @@ use ra_syntax::{
     TextUnit,
 };
 
-use crate::{AssistCtx, Assist};
+use crate::{AssistCtx, Assist, AssistId};
 
 pub(crate) fn add_derive(mut ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> {
     let nominal = ctx.node_at_offset::<ast::NominalDef>()?;
     let node_start = derive_insertion_offset(nominal)?;
-    ctx.add_action("add `#[derive]`", |edit| {
+    ctx.add_action(AssistId("add_derive"), "add `#[derive]`", |edit| {
         let derive_attr = nominal
             .attrs()
             .filter_map(|x| x.as_call())