ufcs

src/lsp/types.zig

@@ -204,7 +204,18 @@ pub const DocumentSymbol = struct {
 
 /// Build completion items JSON array.
 pub fn completionItemsJson(allocator: std.mem.Allocator, items: []const CompletionItem) ![]const u8 {
+    return completionItemsJsonInner(allocator, items, false);
+}
+
+/// Build a CompletionList object with isIncomplete: false, preventing the client
+/// from supplementing results with its own word-based suggestions.
+pub fn completionListJson(allocator: std.mem.Allocator, items: []const CompletionItem) ![]const u8 {
+    return completionItemsJsonInner(allocator, items, true);
+}
+
+fn completionItemsJsonInner(allocator: std.mem.Allocator, items: []const CompletionItem, as_list: bool) ![]const u8 {
     var buf = std.ArrayList(u8).empty;
+    if (as_list) try buf.appendSlice(allocator, "{\"isIncomplete\":false,\"items\":");
     try buf.append(allocator, '[');
     for (items, 0..) |item, idx| {
         if (idx > 0) try buf.append(allocator, ',');
@@ -225,6 +236,7 @@ pub fn completionItemsJson(allocator: std.mem.Allocator, items: []const Completi
         }
     }
     try buf.append(allocator, ']');
+    if (as_list) try buf.append(allocator, '}');
     return buf.items;
 }