`getAutofixMode`: `will_save_wait_until` depends on `workspace/applyEdit` being supported

[dchinmay2]

Zig Version

0.13.0

ZLS Version

0.13.0

Client / Code Editor / Extensions

emacs with lspce (https://github.com/zbelial/lspce)

Steps to Reproduce and Observed Behavior

In getAutofixMode, the will_save_wait_until mode depends on workspace/applyEdit being supported by the client. This is a problem because lspce doesn't support any server->client requests at all, which means lspce doesn't get autofixes even though it could after this PR is merged zbelial/lspce#46

Expected Behavior

server.client_capabilities.supports_will_save_wait_until is checked for separately. I can confirm that autofixes work after this change + the linked lspce PR:

diff --git a/src/Server.zig b/src/Server.zig
index c7a30ee..1a2ccc2 100644
--- a/src/Server.zig
+++ b/src/Server.zig
@@ -330,8 +330,10 @@ fn getAutofixMode(server: *Server) enum {
     if (!server.config.enable_autofix) return .none;
     // TODO https://github.com/zigtools/zls/issues/1093
     // if (server.client_capabilities.supports_code_action_fixall) return .fixall;
+    if (server.client_capabilities.supports_will_save_wait_until) {
+        return .will_save_wait_until;
+    }
     if (server.client_capabilities.supports_apply_edits) {
-        if (server.client_capabilities.supports_will_save_wait_until) return .will_save_wait_until;
         return .on_save;
     }
     return .none;

Also if you decide to implement this, can you please backport it to 0.13?

Relevant log output