diff options
| author | David Rubin <david@vortan.dev> | 2025-08-01 14:57:06 -0700 |
|---|---|---|
| committer | David Rubin <david@vortan.dev> | 2025-08-02 09:51:26 -0700 |
| commit | e82d67233b615e04fb5e4f31cd93216a2c1c2899 (patch) | |
| tree | 875708455162f38785153010da521930321ef4b9 /lib/std | |
| parent | 5678a600ffb2ec27f88ab6a308b4eaf56c60daed (diff) | |
| download | zig-e82d67233b615e04fb5e4f31cd93216a2c1c2899.tar.gz zig-e82d67233b615e04fb5e4f31cd93216a2c1c2899.zip | |
disallow alignment on packed union fields
Diffstat (limited to 'lib/std')
| -rw-r--r-- | lib/std/zig/AstGen.zig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/std/zig/AstGen.zig b/lib/std/zig/AstGen.zig index 52fc41a2c9..ab81f343bd 100644 --- a/lib/std/zig/AstGen.zig +++ b/lib/std/zig/AstGen.zig @@ -5386,6 +5386,9 @@ fn unionDeclInner( return astgen.failNode(member_node, "union field missing type", .{}); } if (member.ast.align_expr.unwrap()) |align_expr| { + if (layout == .@"packed") { + return astgen.failNode(align_expr, "unable to override alignment of packed union fields", .{}); + } const align_inst = try expr(&block_scope, &block_scope.base, coerced_align_ri, align_expr); wip_members.appendToField(@intFromEnum(align_inst)); any_aligned_fields = true; |