From 797ceeaa2b01070cf31c8d24ce440b8ee5feff7f Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Sun, 25 Jan 2026 20:27:34 +0900
Subject: implement optional index access

---
 src/root.zig | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/root.zig')

diff --git a/src/root.zig b/src/root.zig
index f2cc29a..b1f8614 100644
--- a/src/root.zig
+++ b/src/root.zig
@@ -124,6 +124,18 @@ test "comma operator" {
     try testRunMultiple(&.{ "12", "34", "56" }, "{\"a\":12,\"b\":34,\"c\":56}", ".a,.b,.c");
 }
 
+test "optional index" {
+    try testRun("1", "[1,2,3]", ".[0]?");
+    try testRun("null", "[1,2,3]", ".[5]?");
+    try testRun("null", "null", ".[0]?");
+    try testRun("null", "123", ".[0]?");
+
+    try testRun("123", "{\"a\":123}", ".a?");
+    try testRun("null", "{\"a\":123}", ".b?");
+    try testRun("null", "null", ".a?");
+    try testRun("null", "[1,2,3]", ".a?");
+}
+
 test "comparison operators" {
     try testRun("true", "null", "1 == 1");
     try testRun("false", "null", "1 == 2");
-- 
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