From 1605c3b5f8d40232cbe8875e2b36aeaff270b668 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20D=C3=A4schle?= <daniel.daeschle@gmail.com>
Date: Fri, 25 Dec 2020 15:50:08 +0100
Subject: [PATCH] parser: fix error when accessing module without name after
 dot (#7530)

---
 vlib/v/parser/parser.v                             | 2 +-
 vlib/v/parser/tests/uncomplete_module_call_err.out | 5 +++++
 vlib/v/parser/tests/uncomplete_module_call_err.vv  | 7 +++++++
 3 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 vlib/v/parser/tests/uncomplete_module_call_err.out
 create mode 100644 vlib/v/parser/tests/uncomplete_module_call_err.vv

diff --git a/vlib/v/parser/parser.v b/vlib/v/parser/parser.v
index b422a8c01..db12909b5 100644
--- a/vlib/v/parser/parser.v
+++ b/vlib/v/parser/parser.v
@@ -1147,7 +1147,7 @@ pub fn (mut p Parser) name_expr() ast.Expr {
 				// mark the imported module as used
 				p.register_used_import(p.tok.lit)
 				if p.peek_tok.kind == .dot &&
-					p.peek_tok2.kind != .eof && p.peek_tok2.lit[0].is_capital() {
+					p.peek_tok2.kind != .eof && p.peek_tok2.lit.len > 0 && p.peek_tok2.lit[0].is_capital() {
 					is_mod_cast = true
 				}
 			}
diff --git a/vlib/v/parser/tests/uncomplete_module_call_err.out b/vlib/v/parser/tests/uncomplete_module_call_err.out
new file mode 100644
index 000000000..630b780ef
--- /dev/null
+++ b/vlib/v/parser/tests/uncomplete_module_call_err.out
@@ -0,0 +1,5 @@
+vlib/v/parser/tests/uncomplete_module_call_err.vv:7:1: error: unexpected token ``
+    5 | fn main() {
+    6 |     os.
+    7 | }
+      | ^
\ No newline at end of file
diff --git a/vlib/v/parser/tests/uncomplete_module_call_err.vv b/vlib/v/parser/tests/uncomplete_module_call_err.vv
new file mode 100644
index 000000000..7a3cb0629
--- /dev/null
+++ b/vlib/v/parser/tests/uncomplete_module_call_err.vv
@@ -0,0 +1,7 @@
+module main
+
+import os
+
+fn main() {
+	os.
+}
-- 
2.39.5