zig/test/behavior/bugs/1322.zig
Andrew Kelley 5619ce2406 Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen
Conflicts:
 * doc/langref.html.in
 * lib/std/enums.zig
 * lib/std/fmt.zig
 * lib/std/hash/auto_hash.zig
 * lib/std/math.zig
 * lib/std/mem.zig
 * lib/std/meta.zig
 * test/behavior/alignof.zig
 * test/behavior/bitcast.zig
 * test/behavior/bugs/1421.zig
 * test/behavior/cast.zig
 * test/behavior/ptrcast.zig
 * test/behavior/type_info.zig
 * test/behavior/vector.zig

Master branch added `try` to a bunch of testing function calls, and some
lines also had changed how to refer to the native architecture and other
`@import("builtin")` stuff.
2021-05-08 14:45:21 -07:00

20 lines
419 B
Zig

const std = @import("std");
const B = union(enum) {
c: C,
None,
};
const A = struct {
b: B,
};
const C = struct {};
test "tagged union with all void fields but a meaningful tag" {
var a: A = A{ .b = B{ .c = C{} } };
try std.testing.expect(@as(std.meta.Tag(B), a.b) == std.meta.Tag(B).c);
a = A{ .b = B.None };
try std.testing.expect(@as(std.meta.Tag(B), a.b) == std.meta.Tag(B).None);
}