From ad9f48b74bb5d43b767bdf401002d8bfd57c8813 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Sat, 5 Aug 2017 16:52:19 -0400
Subject: fix initializing undefined and crash when casting to invalid type

closes #408
---
 test/compile_errors.zig | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'test/compile_errors.zig')

diff --git a/test/compile_errors.zig b/test/compile_errors.zig
index 03e29e3450..e4b42b12a4 100644
--- a/test/compile_errors.zig
+++ b/test/compile_errors.zig
@@ -1918,4 +1918,17 @@ pub fn addCases(cases: &tests.CompileErrorContext) {
         ".tmp_source.zig:1:13: error: aoeu",
         ".tmp_source.zig:3:19: note: referenced here",
         ".tmp_source.zig:7:12: note: referenced here");
+
+    cases.add("instantiating an undefined value for an invalid struct that contains itself",
+        \\const Foo = struct {
+        \\    x: Foo,
+        \\};
+        \\
+        \\var foo: Foo = undefined;
+        \\
+        \\export fn entry() -> usize {
+        \\    return @sizeOf(@typeOf(foo.x));
+        \\}
+    ,
+        ".tmp_source.zig:1:13: error: struct 'Foo' contains itself");
 }
-- 
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