1 files changed, 24 insertions, 2 deletions

diff --git a/crates/completion/src/config.rs b/crates/completion/src/config.rs
index 654a76f7b..5175b9d69 100644
--- a/crates/completion/src/config.rs
+++ b/crates/completion/src/config.rs
@@ -5,21 +5,42 @@
 //! completions if we are allowed to.
 
 use ide_db::helpers::insert_use::MergeBehaviour;
+use rustc_hash::FxHashSet;
 
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub struct CompletionConfig {
     pub enable_postfix_completions: bool,
-    pub enable_experimental_completions: bool,
+    pub enable_autoimport_completions: bool,
     pub add_call_parenthesis: bool,
     pub add_call_argument_snippets: bool,
     pub snippet_cap: Option<SnippetCap>,
     pub merge: Option<MergeBehaviour>,
+    /// A set of capabilities, enabled on the client and supported on the server.
+    pub active_resolve_capabilities: FxHashSet<CompletionResolveCapability>,
+}
+
+/// A resolve capability, supported on the server.
+/// If the client registers any completion resolve capabilities,
+/// the server is able to render completion items' corresponding fields later,
+/// not during an initial completion item request.
+/// See https://github.com/rust-analyzer/rust-analyzer/issues/6366 for more details.
+#[derive(Debug, Copy, Clone, Hash, Eq, PartialEq)]
+pub enum CompletionResolveCapability {
+    Documentation,
+    Detail,
+    AdditionalTextEdits,
 }
 
 impl CompletionConfig {
     pub fn allow_snippets(&mut self, yes: bool) {
         self.snippet_cap = if yes { Some(SnippetCap { _private: () }) } else { None }
     }
+
+    /// Whether the completions' additional edits are calculated when sending an initional completions list
+    /// or later, in a separate resolve request.
+    pub fn resolve_additional_edits_lazily(&self) -> bool {
+        self.active_resolve_capabilities.contains(&CompletionResolveCapability::AdditionalTextEdits)
+    }
 }
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
@@ -31,11 +52,12 @@ impl Default for CompletionConfig {
     fn default() -> Self {
         CompletionConfig {
             enable_postfix_completions: true,
-            enable_experimental_completions: true,
+            enable_autoimport_completions: true,
             add_call_parenthesis: true,
             add_call_argument_snippets: true,
             snippet_cap: Some(SnippetCap { _private: () }),
             merge: Some(MergeBehaviour::Full),
+            active_resolve_capabilities: FxHashSet::default(),
         }
     }
 }