From 3f30897fdcdb6c5579bc5609dda9746f67551870 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Wed, 11 Jul 2018 13:23:37 -0400
Subject: add compile error for disallowed types in extern structs

closes #1218
---
 test/compile_errors.zig | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'test/compile_errors.zig')

diff --git a/test/compile_errors.zig b/test/compile_errors.zig
index a6db8d50b4..58c73b8ae4 100644
--- a/test/compile_errors.zig
+++ b/test/compile_errors.zig
@@ -1,6 +1,33 @@
 const tests = @import("tests.zig");
 
 pub fn addCases(cases: *tests.CompileErrorContext) void {
+    cases.add(
+        "optional pointer to void in extern struct",
+        \\const Foo = extern struct {
+        \\    x: ?*const void,
+        \\};
+        \\const Bar = extern struct {
+        \\    foo: Foo,
+        \\    y: i32,
+        \\};
+        \\export fn entry(bar: *Bar) void {}
+    ,
+        ".tmp_source.zig:2:5: error: extern structs cannot contain fields of type '?*const void'",
+    );
+
+    cases.add(
+        "use of comptime-known undefined function value",
+        \\const Cmd = struct {
+        \\    exec: fn () void,
+        \\};
+        \\export fn entry() void {
+        \\    const command = Cmd{ .exec = undefined };
+        \\    command.exec();
+        \\}
+    ,
+        ".tmp_source.zig:6:12: error: use of undefined value",
+    );
+
     cases.add(
         "use of comptime-known undefined function value",
         \\const Cmd = struct {
-- 
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