ast-check fixes

src/Server.zig

@@ -237,14 +237,14 @@ fn publishDiagnostics(server: *Server, writer: anytype, handle: DocumentStore.Ha
         });
     }
 
-    if (server.config.enable_ast_check_diagnostics) diag: {
+    if (server.config.enable_ast_check_diagnostics and tree.errors.len == 0) diag: {
         if (server.config.zig_exe_path) |zig_exe_path| {
             var process = std.ChildProcess.init(&[_][]const u8{ zig_exe_path, "ast-check", "--color", "off" }, server.allocator);
             process.stdin_behavior = .Pipe;
             process.stderr_behavior = .Pipe;
 
             process.spawn() catch |err| {
-                Logger.warn(server, writer, "Failed to spawn zig fmt process, error: {}", .{err});
+                Logger.warn(server, writer, "Failed to spawn zig ast-check process, error: {}", .{err});
                 break :diag;
             };
             try process.stdin.?.writeAll(handle.document.text);

src/setup.zig

@@ -170,7 +170,7 @@ pub fn wizard(allocator: std.mem.Allocator) !void {
 
     const editor = try askSelectOne("Which code editor do you use?", enum { VSCode, Sublime, Kate, Neovim, Vim8, Emacs, Doom, Spacemacs, Helix, Other });
     const snippets = try askBool("Do you want to enable snippets?");
-    const unused_variables = try askBool("Do you want to enable unused variable warnings?");
+    const ast_check = try askBool("Do you want to enable ast-check diagnostics?");
     const ief_apc = try askBool("Do you want to enable @import/@embedFile argument path completion?");
     const style = try askBool("Do you want to enable style warnings?");
     const semantic_tokens = try askBool("Do you want to enable semantic highlighting?");
@@ -192,7 +192,7 @@ pub fn wizard(allocator: std.mem.Allocator) !void {
         .@"$schema" = "https://raw.githubusercontent.com/zigtools/zls/master/schema.json",
         .zig_exe_path = zig_exe_path,
         .enable_snippets = snippets,
-        .enable_unused_variable_warnings = unused_variables,
+        .enable_ast_check_diagnostics = ast_check,
         .enable_import_embedfile_argument_completions = ief_apc,
         .warn_style = style,
         .enable_semantic_tokens = semantic_tokens,

src/types.zig

@@ -119,7 +119,7 @@ pub const Diagnostic = struct {
     code: string,
     source: string,
     message: string,
-    relatedInformation: []const DiagnosticRelatedInformation = &[0]DiagnosticRelatedInformation{},
+    relatedInformation: []const DiagnosticRelatedInformation = &.{},
 };
 
 pub const TextDocument = struct {