add variable indexing keep track of postion

server/src/lsp_server.py

@@ -125,10 +125,46 @@ def document_diagnostic(params: lsp.DocumentDiagnosticParams):
 
 @LSP_SERVER.feature(lsp.TEXT_DOCUMENT_COMPLETION)
 def on_completion(params: lsp.CompletionParams) -> lsp.CompletionList:
-    _ = LSP_SERVER.workspace.get_text_document(params.text_document.uri)
+    from tools.variable_index import build_variable_index
+    from tools.completion_items import BUILTIN_VAR_LABELS
+
+    doc = LSP_SERVER.workspace.get_text_document(params.text_document.uri)
+
+    # Base items
     poco = [item for items in LSP_SERVER.poco_completion.values() for item in items]
-    items = standard_items.tcl_keyword_list + standard_items.nx_procs + standard_items.nx_variables + poco
-    return lsp.CompletionList(is_incomplete=False, items=items)
+    base_items = standard_items.tcl_keyword_list + standard_items.nx_procs + standard_items.nx_variables + poco
+
+    # Build variable index from current document
+    globals_set, procs_locals, proc_ranges = build_variable_index(doc.source)
+
+    # Always include globals (excluding built-ins)
+    dynamic_items = []
+    for name in sorted(globals_set):
+        if name not in BUILTIN_VAR_LABELS:
+            dynamic_items.append(lsp.CompletionItem(label=name, kind=lsp.CompletionItemKind.Variable))
+
+    # Include proc-local variables when cursor is inside that proc
+    pos = params.position
+    if pos is not None:
+        for pr in proc_ranges:
+            if pr.start_line <= pos.line <= (pr.end_line or pr.start_line):
+                for name in sorted(procs_locals.get(pr.name, set())):
+                    # Exclude built-ins and globals to avoid duplication
+                    if name not in BUILTIN_VAR_LABELS and name not in globals_set:
+                        dynamic_items.append(lsp.CompletionItem(label=name, kind=lsp.CompletionItemKind.Variable))
+                break
+
+    # Merge with de-duplication for variables only
+    merged: list[lsp.CompletionItem] = []
+    seen_var_labels: set[str] = set()
+    for it in base_items + dynamic_items:
+        if getattr(it, "kind", None) == lsp.CompletionItemKind.Variable:
+            if it.label in seen_var_labels:
+                continue
+            seen_var_labels.add(it.label)
+        merged.append(it)
+
+    return lsp.CompletionList(is_incomplete=False, items=merged)
 
 
 # @LSP_SERVER.feature(lsp.TEXT_DOCUMENT_DOCUMENT_SYMBOL)