From 12a7dedb1f1ce34b16993d33aa97d7b78d5d5ca2 Mon Sep 17 00:00:00 2001
From: Ryan Liptak <squeek502@hotmail.com>
Date: Wed, 8 Jul 2020 13:40:16 -0700
Subject: [PATCH] langref: Expand "if error union with optional" test case

Follow-up to #5818, closes #5819
---
 doc/langref.html.in | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/doc/langref.html.in b/doc/langref.html.in
index 78dcd537b8..f64170817f 100644
--- a/doc/langref.html.in
+++ b/doc/langref.html.in
@@ -3886,6 +3886,22 @@ test "if error union with optional" {
     } else |err| {
         assert(err == error.BadValue);
     }
+
+    // Access the value by reference by using a pointer capture each time.
+    var d: anyerror!?u32 = 3;
+    if (d) |*optional_value| {
+        if (optional_value.*) |*value| {
+            value.* = 9;
+        }
+    } else |err| {
+        unreachable;
+    }
+
+    if (d) |optional_value| {
+        assert(optional_value.? == 9);
+    } else |err| {
+        unreachable;
+    }
 }
       {#code_end#}
       {#see_also|Optionals|Errors#}