17 files changed, 57 insertions, 3 deletions

diff --git a/crates/rust-analyzer/Cargo.toml b/crates/rust-analyzer/Cargo.toml
index 975b24aaf..d25c4bf83 100644
--- a/crates/rust-analyzer/Cargo.toml
+++ b/crates/rust-analyzer/Cargo.toml
@@ -21,7 +21,7 @@ env_logger = { version = "0.8.1", default-features = false }
 itertools = "0.9.0"
 jod-thread = "0.1.0"
 log = "0.4.8"
-lsp-types = { version = "0.82.0", features = ["proposed"] }
+lsp-types = { version = "0.83.0", features = ["proposed"] }
 parking_lot = "0.11.0"
 pico-args = "0.3.1"
 oorandom = "11.1.2"
diff --git a/crates/rust-analyzer/src/caps.rs b/crates/rust-analyzer/src/caps.rs
index c589afeaf..ff1ae9575 100644
--- a/crates/rust-analyzer/src/caps.rs
+++ b/crates/rust-analyzer/src/caps.rs
@@ -48,7 +48,7 @@ pub fn server_capabilities(client_caps: &ClientCapabilities) -> ServerCapabiliti
         references_provider: Some(OneOf::Left(true)),
         document_highlight_provider: Some(OneOf::Left(true)),
         document_symbol_provider: Some(OneOf::Left(true)),
-        workspace_symbol_provider: Some(true),
+        workspace_symbol_provider: Some(OneOf::Left(true)),
         code_action_provider: Some(code_action_provider),
         code_lens_provider: Some(CodeLensOptions { resolve_provider: Some(true) }),
         document_formatting_provider: Some(OneOf::Left(true)),
@@ -113,6 +113,7 @@ fn code_action_capabilities(client_caps: &ClientCapabilities) -> CodeActionProvi
                     CodeActionKind::REFACTOR_INLINE,
                     CodeActionKind::REFACTOR_REWRITE,
                 ]),
+                resolve_provider: None,
                 work_done_progress_options: Default::default(),
             })
         })
diff --git a/crates/rust-analyzer/src/config.rs b/crates/rust-analyzer/src/config.rs
index 1b9b24698..2ed6a0d82 100644
--- a/crates/rust-analyzer/src/config.rs
+++ b/crates/rust-analyzer/src/config.rs
@@ -47,6 +47,7 @@ pub struct Config {
     pub call_info_full: bool,
     pub lens: LensConfig,
     pub hover: HoverConfig,
+    pub semantic_tokens_refresh: bool,
 
     pub with_sysroot: bool,
     pub linked_projects: Vec<LinkedProject>,
@@ -193,6 +194,7 @@ impl Config {
             call_info_full: true,
             lens: LensConfig::default(),
             hover: HoverConfig::default(),
+            semantic_tokens_refresh: false,
             linked_projects: Vec::new(),
             root_path,
         }
@@ -402,6 +404,14 @@ impl Config {
             self.client_caps.hover_actions = get_bool("hoverActions");
             self.client_caps.status_notification = get_bool("statusNotification");
         }
+
+        if let Some(workspace_caps) = caps.workspace.as_ref() {
+            if let Some(refresh_support) =
+                workspace_caps.semantic_tokens.as_ref().and_then(|it| it.refresh_support)
+            {
+                self.semantic_tokens_refresh = refresh_support;
+            }
+        }
     }
 }
 
diff --git a/crates/rust-analyzer/src/diagnostics/test_data/clippy_pass_by_ref.txt b/crates/rust-analyzer/src/diagnostics/test_data/clippy_pass_by_ref.txt
index d06517126..58d47d32a 100644
--- a/crates/rust-analyzer/src/diagnostics/test_data/clippy_pass_by_ref.txt
+++ b/crates/rust-analyzer/src/diagnostics/test_data/clippy_pass_by_ref.txt
@@ -20,6 +20,7 @@
                     "trivially_copy_pass_by_ref",
                 ),
             ),
+            code_description: None,
             source: Some(
                 "clippy",
             ),
@@ -61,6 +62,7 @@
                 ],
             ),
             tags: None,
+            data: None,
         },
         fixes: [],
     },
diff --git a/crates/rust-analyzer/src/diagnostics/test_data/handles_macro_location.txt b/crates/rust-analyzer/src/diagnostics/test_data/handles_macro_location.txt
index f5de2f07f..6aa26bf63 100644
--- a/crates/rust-analyzer/src/diagnostics/test_data/handles_macro_location.txt
+++ b/crates/rust-analyzer/src/diagnostics/test_data/handles_macro_location.txt
@@ -20,12 +20,14 @@
                     "E0277",
                 ),
             ),
+            code_description: None,
             source: Some(
                 "rustc",
             ),
             message: "can\'t compare `{integer}` with `&str`\nthe trait `std::cmp::PartialEq<&str>` is not implemented for `{integer}`",
             related_information: None,
             tags: None,
+            data: None,
         },
         fixes: [],
     },
diff --git a/crates/rust-analyzer/src/diagnostics/test_data/macro_compiler_error.txt b/crates/rust-analyzer/src/diagnostics/test_data/macro_compiler_error.txt
index 00e8da8a7..7aaffaba2 100644
--- a/crates/rust-analyzer/src/diagnostics/test_data/macro_compiler_error.txt
+++ b/crates/rust-analyzer/src/diagnostics/test_data/macro_compiler_error.txt
@@ -16,6 +16,7 @@
                 Error,
             ),
             code: None,
+            code_description: None,
             source: Some(
                 "rustc",
             ),
@@ -41,6 +42,7 @@
                 ],
             ),
             tags: None,
+            data: None,
         },
         fixes: [],
     },
@@ -61,6 +63,7 @@
                 Error,
             ),
             code: None,
+            code_description: None,
             source: Some(
                 "rustc",
             ),
@@ -86,6 +89,7 @@
                 ],
             ),
             tags: None,
+            data: None,
         },
         fixes: [],
     },
diff --git a/crates/rust-analyzer/src/diagnostics/test_data/rustc_incompatible_type_for_trait.txt b/crates/rust-analyzer/src/diagnostics/test_data/rustc_incompatible_type_for_trait.txt
index fc54440be..584213420 100644
--- a/crates/rust-analyzer/src/diagnostics/test_data/rustc_incompatible_type_for_trait.txt
+++ b/crates/rust-analyzer/src/diagnostics/test_data/rustc_incompatible_type_for_trait.txt
@@ -20,12 +20,14 @@
                     "E0053",
                 ),
             ),
+            code_description: None,
             source: Some(
                 "rustc",
             ),
             message: "method `next` has an incompatible type for trait\nexpected type `fn(&mut ty::list_iter::ListIterator<\'list, M>) -> std::option::Option<&ty::Ref<M>>`\n   found type `fn(&ty::list_iter::ListIterator<\'list, M>) -> std::option::Option<&\'list ty::Ref<M>>`",
             related_information: None,
             tags: None,
+            data: None,
         },
         fixes: [],
     },
diff --git a/crates/rust-analyzer/src/diagnostics/test_data/rustc_mismatched_type.txt b/crates/rust-analyzer/src/diagnostics/test_data/rustc_mismatched_type.txt
index c269af218..2610e4e20 100644
--- a/crates/rust-analyzer/src/diagnostics/test_data/rustc_mismatched_type.txt
+++ b/crates/rust-analyzer/src/diagnostics/test_data/rustc_mismatched_type.txt
@@ -20,12 +20,14 @@
                     "E0308",
                 ),
             ),
+            code_description: None,
             source: Some(
                 "rustc",
             ),
             message: "mismatched types\nexpected usize, found u32",
             related_information: None,
             tags: None,
+            data: None,
         },
         fixes: [],
     },
diff --git a/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable.txt b/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable.txt
index 74d91bc77..8dc53391e 100644
--- a/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable.txt
+++ b/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable.txt
@@ -20,6 +20,7 @@
                     "unused_variables",
                 ),
             ),
+            code_description: None,
             source: Some(
                 "rustc",
             ),
@@ -30,6 +31,7 @@
                     Unnecessary,
                 ],
             ),
+            data: None,
         },
         fixes: [
             CodeAction {
diff --git a/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable_as_hint.txt b/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable_as_hint.txt
index 8a420c949..c8703194c 100644
--- a/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable_as_hint.txt
+++ b/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable_as_hint.txt
@@ -20,6 +20,7 @@
                     "unused_variables",
                 ),
             ),
+            code_description: None,
             source: Some(
                 "rustc",
             ),
@@ -30,6 +31,7 @@
                     Unnecessary,
                 ],
             ),
+            data: None,
         },
         fixes: [
             CodeAction {
diff --git a/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable_as_info.txt b/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable_as_info.txt
index 79910660b..dc93227ad 100644
--- a/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable_as_info.txt
+++ b/crates/rust-analyzer/src/diagnostics/test_data/rustc_unused_variable_as_info.txt
@@ -20,6 +20,7 @@
                     "unused_variables",
                 ),
             ),
+            code_description: None,
             source: Some(
                 "rustc",
             ),
@@ -30,6 +31,7 @@
                     Unnecessary,
                 ],
             ),
+            data: None,
         },
         fixes: [
             CodeAction {
diff --git a/crates/rust-analyzer/src/diagnostics/test_data/rustc_wrong_number_of_parameters.txt b/crates/rust-analyzer/src/diagnostics/test_data/rustc_wrong_number_of_parameters.txt
index efe37261d..ba1b98b33 100644
--- a/crates/rust-analyzer/src/diagnostics/test_data/rustc_wrong_number_of_parameters.txt
+++ b/crates/rust-analyzer/src/diagnostics/test_data/rustc_wrong_number_of_parameters.txt
@@ -20,6 +20,7 @@
                     "E0061",
                 ),
             ),
+            code_description: None,
             source: Some(
                 "rustc",
             ),
@@ -45,6 +46,7 @@
                 ],
             ),
             tags: None,
+            data: None,
         },
         fixes: [],
     },
diff --git a/crates/rust-analyzer/src/diagnostics/test_data/snap_multi_line_fix.txt b/crates/rust-analyzer/src/diagnostics/test_data/snap_multi_line_fix.txt
index 4f811ab64..81f752672 100644
--- a/crates/rust-analyzer/src/diagnostics/test_data/snap_multi_line_fix.txt
+++ b/crates/rust-analyzer/src/diagnostics/test_data/snap_multi_line_fix.txt
@@ -20,6 +20,7 @@
                     "let_and_return",
                 ),
             ),
+            code_description: None,
             source: Some(
                 "clippy",
             ),
@@ -45,6 +46,7 @@
                 ],
             ),
             tags: None,
+            data: None,
         },
         fixes: [
             CodeAction {
diff --git a/crates/rust-analyzer/src/diagnostics/to_proto.rs b/crates/rust-analyzer/src/diagnostics/to_proto.rs
index 33606edda..b949577c1 100644
--- a/crates/rust-analyzer/src/diagnostics/to_proto.rs
+++ b/crates/rust-analyzer/src/diagnostics/to_proto.rs
@@ -248,10 +248,12 @@ pub(crate) fn map_rust_diagnostic_to_lsp(
                         range: in_macro_location.range,
                         severity,
                         code: code.clone().map(lsp_types::NumberOrString::String),
+                        code_description: None,
                         source: Some(source.clone()),
                         message: message.clone(),
                         related_information: Some(information_for_additional_diagnostic),
                         tags: if tags.is_empty() { None } else { Some(tags.clone()) },
+                        data: None,
                     };
 
                     Some(MappedRustDiagnostic {
@@ -267,6 +269,7 @@ pub(crate) fn map_rust_diagnostic_to_lsp(
                 range: location.range,
                 severity,
                 code: code.clone().map(lsp_types::NumberOrString::String),
+                code_description: None,
                 source: Some(source.clone()),
                 message,
                 related_information: if related_information.is_empty() {
@@ -275,6 +278,7 @@ pub(crate) fn map_rust_diagnostic_to_lsp(
                     Some(related_information.clone())
                 },
                 tags: if tags.is_empty() { None } else { Some(tags.clone()) },
+                data: None,
             };
 
             let main_diagnostic =
diff --git a/crates/rust-analyzer/src/handlers.rs b/crates/rust-analyzer/src/handlers.rs
index 2680e5f08..049c583a4 100644
--- a/crates/rust-analyzer/src/handlers.rs
+++ b/crates/rust-analyzer/src/handlers.rs
@@ -1121,10 +1121,12 @@ pub(crate) fn publish_diagnostics(
             range: to_proto::range(&line_index, d.range),
             severity: Some(to_proto::diagnostic_severity(d.severity)),
             code: None,
+            code_description: None,
             source: Some("rust-analyzer".to_string()),
             message: d.message,
             related_information: None,
             tags: if d.unused { Some(vec![DiagnosticTag::Unnecessary]) } else { None },
+            data: None,
         })
         .collect();
     Ok(diagnostics)
diff --git a/crates/rust-analyzer/src/main_loop.rs b/crates/rust-analyzer/src/main_loop.rs
index ed5292733..ff855fe1a 100644
--- a/crates/rust-analyzer/src/main_loop.rs
+++ b/crates/rust-analyzer/src/main_loop.rs
@@ -330,6 +330,12 @@ impl GlobalState {
                 .collect::<Vec<_>>();
 
             self.update_file_notifications_on_threadpool(subscriptions);
+
+            // Refresh semantic tokens if the client supports it.
+            if self.config.semantic_tokens_refresh {
+                self.semantic_tokens_cache.lock().clear();
+                self.send_request::<lsp_types::request::SemanticTokensRefesh>((), |_, _| ());
+            }
         }
 
         if let Some(diagnostic_changes) = self.diagnostics.take_changes() {
diff --git a/crates/rust-analyzer/src/to_proto.rs b/crates/rust-analyzer/src/to_proto.rs
index 24a658fc6..92b7c7b68 100644
--- a/crates/rust-analyzer/src/to_proto.rs
+++ b/crates/rust-analyzer/src/to_proto.rs
@@ -709,7 +709,16 @@ pub(crate) fn call_hierarchy_item(
     let detail = target.description.clone();
     let kind = symbol_kind(target.kind);
     let (uri, range, selection_range) = location_info(snap, target)?;
-    Ok(lsp_types::CallHierarchyItem { name, kind, tags: None, detail, uri, range, selection_range })
+    Ok(lsp_types::CallHierarchyItem {
+        name,
+        kind,
+        tags: None,
+        detail,
+        uri,
+        range,
+        selection_range,
+        data: None,
+    })
 }
 
 pub(crate) fn code_action_kind(kind: AssistKind) -> lsp_types::CodeActionKind {