Add docs and use better naming

crates/ide/src/lib.rs

@@ -87,7 +87,9 @@ pub use crate::{
     },
 };
 pub use hir::{Documentation, Semantics};
-pub use ide_assists::{Assist, AssistConfig, AssistId, AssistKind, AssistResolveStrategy};
+pub use ide_assists::{
+    Assist, AssistConfig, AssistId, AssistKind, AssistResolveStrategy, SingleResolve,
+};
 pub use ide_completion::{
     CompletionConfig, CompletionItem, CompletionItemKind, CompletionRelevance, ImportEdit,
     InsertTextFormat,

crates/ide_assists/src/lib.rs

@@ -94,12 +94,27 @@ impl FromStr for AssistKind {
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct AssistId(pub &'static str, pub AssistKind);
 
-// TODO kb docs
-#[derive(Debug, Clone)]
+/// A way to control how many asssist to resolve during the assist resolution.
+/// When an assist is resolved, its edits are calculated that might be costly to always do by default.
+#[derive(Debug)]
 pub enum AssistResolveStrategy {
+    /// No assists should be resolved.
     None,
+    /// All assists should be resolved.
     All,
-    Single(String, AssistKind),
+    /// Only a certain assists should be resolved.
+    Single(SingleResolve),
+}
+
+/// Hold the [`AssistId`] data of a certain assist to resolve.
+/// The original id object cannot be used due to a `'static` lifetime
+/// and the requirement to construct this struct dynamically during the resolve handling.
+#[derive(Debug)]
+pub struct SingleResolve {
+    /// The id of the assist.
+    pub assist_id: String,
+    // The kind of the assist.
+    pub assist_kind: AssistKind,
 }
 
 impl AssistResolveStrategy {
@@ -107,8 +122,8 @@ impl AssistResolveStrategy {
         match self {
             AssistResolveStrategy::None => false,
             AssistResolveStrategy::All => true,
-            AssistResolveStrategy::Single(id_to_resolve, kind) => {
-                id_to_resolve == id.0 && kind == &id.1
+            AssistResolveStrategy::Single(single_resolve) => {
+                single_resolve.assist_id == id.0 && single_resolve.assist_kind == id.1
             }
         }
     }

crates/rust-analyzer/src/handlers.rs

@@ -10,7 +10,7 @@ use std::{
 use ide::{
     AnnotationConfig, AssistKind, AssistResolveStrategy, FileId, FilePosition, FileRange,
     HoverAction, HoverGotoTypeData, Query, RangeInfo, Runnable, RunnableKind, SearchScope,
-    SourceChange, TextEdit,
+    SingleResolve, SourceChange, TextEdit,
 };
 use ide_db::SymbolKind;
 use itertools::Itertools;
@@ -1072,7 +1072,7 @@ pub(crate) fn handle_code_action_resolve(
     let assists = snap.analysis.assists_with_fixes(
         &assists_config,
         &snap.config.diagnostics(),
-        AssistResolveStrategy::Single(params.id.clone(), assist_kind),
+        AssistResolveStrategy::Single(SingleResolve { assist_id: params.id.clone(), assist_kind }),
         frange,
     )?;