layout

src/lsp/document.zig

@@ -24,6 +24,8 @@ pub const Document = struct {
     root: ?*sx.ast.Node,
     /// Sema results for this file (references are relative to this source).
     sema: ?sx.sema.SemaResult,
+    /// Last successful sema (preserved across parse failures for completions).
+    last_good_sema: ?sx.sema.SemaResult = null,
     /// Import declarations parsed from this file.
     imports: []const Import,
 
@@ -199,6 +201,9 @@ pub const DocumentStore = struct {
 
         // Run sema on this file's own AST
         doc.sema = analyzer.analyze(root) catch null;
+        if (doc.sema != null) {
+            doc.last_good_sema = doc.sema;
+        }
     }
 
     pub fn get(self: *const DocumentStore, path: []const u8) ?*Document {