1 files changed, 18 insertions, 0 deletions
diff --git a/test/compile_errors.zig b/test/compile_errors.zig
index bc2d43706f..812b236716 100644
--- a/test/compile_errors.zig
+++ b/test/compile_errors.zig
@@ -3,6 +3,24 @@ const builtin = @import("builtin");
 
 pub fn addCases(cases: *tests.CompileErrorContext) void {
     cases.add(
+        "struct depends on itself via optional field",
+        \\const LhsExpr = struct {
+        \\    rhsExpr: ?AstObject,
+        \\};
+        \\const AstObject = union {
+        \\    lhsExpr: LhsExpr,
+        \\};
+        \\export fn entry() void {
+        \\    const lhsExpr = LhsExpr{ .rhsExpr = null };
+        \\    const obj = AstObject{ .lhsExpr = lhsExpr };
+        \\}
+    ,
+        "tmp.zig:1:17: error: struct 'LhsExpr' depends on itself",
+        "tmp.zig:5:5: note: while checking this field",
+        "tmp.zig:2:5: note: while checking this field",
+    );
+
+    cases.add(
         "alignment of enum field specified",
         \\const Number = enum {
         \\    a,