stage1: fix crash on slice byte reinterpretation

2020-06-08 19:06:37 +02:00
parent c405844b0a
commit 0d40cb6255
2 changed files with 27 additions and 5 deletions
--- a/test/compile_errors.zig
+++ b/test/compile_errors.zig
@@ -7495,4 +7495,13 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
        ":22:12: error: cannot compare types '?[3]i32' and '[3]i32'",
        ":22:12: note: operator not supported for type '[3]i32'",
    });
+
+    cases.add("slice cannot have its bytes reinterpreted",
+        \\export fn foo() void {
+        \\    const bytes = [1]u8{ 0xfa } ** 16;
+        \\    var value = @ptrCast(*const []const u8, &bytes).*;
+        \\}
+    , &[_][]const u8{
+        ":3:52: error: slice '[]const u8' cannot have its bytes reinterpreted",
+    });
 }