Omit completion fields to be resolved later

src/tools/rust-analyzer/crates/ide-completion/src/lib.rs

@@ -43,11 +43,8 @@ pub struct CompletionFieldsToResolve {
     pub resolve_tags: bool,
     pub resolve_detail: bool,
     pub resolve_documentation: bool,
-    pub resolve_sort_text: bool,
     pub resolve_filter_text: bool,
     pub resolve_text_edit: bool,
-    // FIXME: those are always resolved
-    // pub resolve_additional_text_edits: bool,
     pub resolve_command: bool,
 }
 
@@ -58,7 +55,6 @@ impl CompletionFieldsToResolve {
             resolve_tags: false,
             resolve_detail: false,
             resolve_documentation: false,
-            resolve_sort_text: false,
             resolve_filter_text: false,
             resolve_text_edit: false,
             resolve_command: false,

src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs

@@ -1421,7 +1421,6 @@ impl Config {
                 resolve_tags: client_capability_fields.contains("tags"),
                 resolve_detail: client_capability_fields.contains("detail"),
                 resolve_documentation: client_capability_fields.contains("documentation"),
-                resolve_sort_text: client_capability_fields.contains("sortText"),
                 resolve_filter_text: client_capability_fields.contains("filterText"),
                 resolve_text_edit: client_capability_fields.contains("textEdit"),
                 resolve_command: client_capability_fields.contains("command"),

src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs

@@ -1056,33 +1056,36 @@ pub(crate) fn handle_completion_resolve(
     };
     let source_root = snap.analysis.source_root_id(file_id)?;
 
-    let additional_edits = snap
-        .analysis
-        .resolve_completion_edits(
-            &snap.config.completion(Some(source_root)),
-            FilePosition { file_id, offset },
-            resolve_data
-                .imports
-                .into_iter()
-                .map(|import| (import.full_import_path, import.imported_name)),
-        )?
-        .into_iter()
-        .flat_map(|edit| edit.into_iter().map(|indel| to_proto::text_edit(&line_index, indel)))
-        .collect::<Vec<_>>();
-
-    if !all_edits_are_disjoint(&original_completion, &additional_edits) {
-        return Err(LspError::new(
-            ErrorCode::InternalError as i32,
-            "Import edit overlaps with the original completion edits, this is not LSP-compliant"
-                .into(),
-        )
-        .into());
-    }
+    if !resolve_data.imports.is_empty() {
+        let additional_edits = snap
+            .analysis
+            .resolve_completion_edits(
+                &snap.config.completion(Some(source_root)),
+                FilePosition { file_id, offset },
+                resolve_data
+                    .imports
+                    .into_iter()
+                    .map(|import| (import.full_import_path, import.imported_name)),
+            )?
+            .into_iter()
+            .flat_map(|edit| edit.into_iter().map(|indel| to_proto::text_edit(&line_index, indel)))
+            .collect::<Vec<_>>();
+
+        if !all_edits_are_disjoint(&original_completion, &additional_edits) {
+            return Err(LspError::new(
+                ErrorCode::InternalError as i32,
+                "Import edit overlaps with the original completion edits, this is not LSP-compliant"
+                    .into(),
+            )
+            .into());
+        }
 
-    if let Some(original_additional_edits) = original_completion.additional_text_edits.as_mut() {
-        original_additional_edits.extend(additional_edits)
-    } else {
-        original_completion.additional_text_edits = Some(additional_edits);
+        if let Some(original_additional_edits) = original_completion.additional_text_edits.as_mut()
+        {
+            original_additional_edits.extend(additional_edits)
+        } else {
+            original_completion.additional_text_edits = Some(additional_edits);
+        }
     }
 
     Ok(original_completion)

src/tools/rust-analyzer/crates/rust-analyzer/src/lsp/to_proto.rs

@@ -275,14 +275,23 @@ fn completion_item(
 ) {
     let insert_replace_support = config.insert_replace_support().then_some(tdpp.position);
     let ref_match = item.ref_match();
-    let lookup = item.lookup().to_owned();
 
     let mut additional_text_edits = Vec::new();
     let mut something_to_resolve = false;
 
+    let filter_text = if fields_to_resolve.resolve_filter_text {
+        something_to_resolve = !item.lookup().is_empty();
+        None
+    } else {
+        Some(item.lookup().to_owned())
+    };
+
     // LSP does not allow arbitrary edits in completion, so we have to do a
     // non-trivial mapping here.
-    let text_edit = {
+    let text_edit = if fields_to_resolve.resolve_text_edit {
+        something_to_resolve = true;
+        None
+    } else {
         let mut text_edit = None;
         let source_range = item.source_range;
         for indel in item.text_edit {
@@ -305,25 +314,49 @@ fn completion_item(
                 additional_text_edits.push(text_edit);
             }
         }
-        text_edit.unwrap()
+        Some(text_edit.unwrap())
     };
 
     let insert_text_format = item.is_snippet.then_some(lsp_types::InsertTextFormat::SNIPPET);
-    let tags = item.deprecated.then(|| vec![lsp_types::CompletionItemTag::DEPRECATED]);
+    let tags = if fields_to_resolve.resolve_tags {
+        something_to_resolve = item.deprecated;
+        None
+    } else {
+        item.deprecated.then(|| vec![lsp_types::CompletionItemTag::DEPRECATED])
+    };
     let command = if item.trigger_call_info && config.client_commands().trigger_parameter_hints {
-        Some(command::trigger_parameter_hints())
+        if fields_to_resolve.resolve_command {
+            something_to_resolve = true;
+            Some(command::trigger_parameter_hints())
+        } else {
+            None
+        }
     } else {
         None
     };
 
+    let detail = if fields_to_resolve.resolve_detail {
+        something_to_resolve = item.detail.is_some();
+        None
+    } else {
+        item.detail
+    };
+
+    let documentation = if fields_to_resolve.resolve_documentation {
+        something_to_resolve = item.documentation.is_some();
+        None
+    } else {
+        item.documentation.map(documentation)
+    };
+
     let mut lsp_item = lsp_types::CompletionItem {
         label: item.label.to_string(),
-        detail: item.detail,
-        filter_text: Some(lookup),
+        detail,
+        filter_text,
         kind: Some(completion_item_kind(item.kind)),
-        text_edit: Some(text_edit),
+        text_edit,
         additional_text_edits: Some(additional_text_edits),
-        documentation: item.documentation.map(documentation),
+        documentation,
         deprecated: Some(item.deprecated),
         tags,
         command,
@@ -332,34 +365,40 @@ fn completion_item(
     };
 
     if config.completion_label_details_support() {
-        lsp_item.label_details = Some(lsp_types::CompletionItemLabelDetails {
-            detail: item.label_detail.as_ref().map(ToString::to_string),
-            description: lsp_item.detail.clone(),
-        });
+        if fields_to_resolve.resolve_label_details {
+            something_to_resolve = true;
+        } else {
+            lsp_item.label_details = Some(lsp_types::CompletionItemLabelDetails {
+                detail: item.label_detail.as_ref().map(ToString::to_string),
+                description: lsp_item.detail.clone(),
+            });
+        }
     } else if let Some(label_detail) = item.label_detail {
         lsp_item.label.push_str(label_detail.as_str());
     }
 
     set_score(&mut lsp_item, max_relevance, item.relevance);
 
-    if config.completion(None).enable_imports_on_the_fly && !item.import_to_add.is_empty() {
-        let imports = item
-            .import_to_add
-            .into_iter()
-            .map(|(import_path, import_name)| lsp_ext::CompletionImport {
-                full_import_path: import_path,
-                imported_name: import_name,
-            })
-            .collect::<Vec<_>>();
-        if !imports.is_empty() {
-            let data = lsp_ext::CompletionResolveData {
-                position: tdpp.clone(),
-                imports,
-                version,
-                completion_trigger_character,
-            };
-            lsp_item.data = Some(to_value(data).unwrap());
-        }
+    let imports =
+        if config.completion(None).enable_imports_on_the_fly && !item.import_to_add.is_empty() {
+            item.import_to_add
+                .into_iter()
+                .map(|(import_path, import_name)| lsp_ext::CompletionImport {
+                    full_import_path: import_path,
+                    imported_name: import_name,
+                })
+                .collect()
+        } else {
+            Vec::new()
+        };
+    if something_to_resolve || !imports.is_empty() {
+        let data = lsp_ext::CompletionResolveData {
+            position: tdpp.clone(),
+            imports,
+            version,
+            completion_trigger_character,
+        };
+        lsp_item.data = Some(to_value(data).unwrap());
     }
 
     if let Some((label, indel, relevance)) = ref_match {