Update types dependency (fix rust-lang#312)

- update "languageserver-types" to 0.9.0
- modify initialization params to use `None` in experimental field of ClientCapabilities
- change tests to consider an empty object in client capabilities

Cargo.toml

@@ -9,7 +9,7 @@ build = "build.rs"
 cargo = { git = "https://github.com/rust-lang/cargo" }
 derive-new = "0.3"
 env_logger = "0.4"
-languageserver-types = "0.8.0"
+languageserver-types = "0.9.0"
 log = "0.3"
 racer = "2.0.6"
 rls-analysis = "0.2.1"

src/cmd.rs

@@ -18,7 +18,6 @@ use vfs::Vfs;
 use server::{self, ServerMessage, Request, Notification, Method, LsService, ParseError, ResponseData};
 
 use ls_types::{ClientCapabilities, TextDocumentPositionParams, TextDocumentIdentifier, TraceOption, Position, InitializeParams};
-use serde_json::Value;
 use std::time::Duration;
 use std::io::{stdin, stdout, Write};
 use std::path::Path;
@@ -121,7 +120,7 @@ fn initialize(root_path: String) -> ServerMessage {
         capabilities: ClientCapabilities {
             workspace: None,
             text_document: None,
-            experimental: Value::Null,
+            experimental: None,
         },
         trace: TraceOption::Off,
     };

src/test/mod.rs

@@ -78,7 +78,7 @@ fn test_hover() {
     let url = Url::from_file_path(cache.abs_path(&source_file_path)).expect("couldn't convert file path to URL");
     let text_doc = serde_json::to_string(&TextDocumentIdentifier::new(url)).expect("couldn't convert path to JSON");
     let messages = vec![Message::new("initialize", vec![("processId", "0".to_owned()),
-                                                        ("capabilities", "{ \"experimental\": null }".to_owned()),
+                                                        ("capabilities", "{}".to_owned()),
                                                         ("rootPath", root_path),
                                                         ("rootUri", "null".to_owned()),
                                                         ("trace", "\"off\"".to_owned())]),
@@ -116,9 +116,7 @@ fn test_find_all_refs() {
             "id": 0,
             "params": {
                 "processId": 0,
-                "capabilities": {
-                    "experimental": null
-                },
+                "capabilities": {},
                 "rootPath": root_path,
                 "rootUri": null,
                 "trace": "off"
@@ -169,9 +167,7 @@ fn test_find_all_refs_no_cfg_test() {
             "id": 0,
             "params": {
                 "processId": 0,
-                "capabilities": {
-                    "experimental": null
-                },
+                "capabilities": {},
                 "rootPath": root_path,
                 "rootUri": null,
                 "trace": "off"
@@ -217,9 +213,7 @@ fn test_borrow_error() {
             "id": 0,
             "params": {
                 "processId": 0,
-                "capabilities": {
-                    "experimental": null
-                },
+                "capabilities": {},
                 "rootPath": root_path,
                 "rootUri": null,
                 "trace": "off"
@@ -254,9 +248,7 @@ fn test_highlight() {
             "id": 0,
             "params": {
                 "processId": 0,
-                "capabilities": {
-                    "experimental": null
-                },
+                "capabilities": {},
                 "rootPath": root_path,
                 "rootUri": null,
                 "trace": "off"
@@ -303,9 +295,7 @@ fn test_rename() {
             "id": 0,
             "params": {
                 "processId": 0,
-                "capabilities": {
-                    "experimental": null
-                },
+                "capabilities": {},
                 "rootPath": root_path,
                 "rootUri": null,
                 "trace": "off"
@@ -349,7 +339,7 @@ fn test_completion() {
     let url = Url::from_file_path(cache.abs_path(&source_file_path)).expect("couldn't convert file path to URL");
     let text_doc = serde_json::to_string(&TextDocumentIdentifier::new(url)).expect("couldn't convert path to JSON");
     let messages = vec![Message::new("initialize", vec![("processId", "0".to_owned()),
-                                                        ("capabilities", "{ \"experimental\": null }".to_owned()),
+                                                        ("capabilities", "{}".to_owned()),
                                                         ("rootPath", root_path),
                                                         ("rootUri", "null".to_owned()),
                                                         ("trace", "\"off\"".to_owned())]),