diff options
Diffstat (limited to 'src/type.zig')
| -rw-r--r-- | src/type.zig | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/type.zig b/src/type.zig index feea1fe2c1..5bcf310fc4 100644 --- a/src/type.zig +++ b/src/type.zig @@ -2868,7 +2868,11 @@ pub const Type = extern union { /// Otherwise, returns `null`. pub fn unionTagType(ty: Type) ?Type { return switch (ty.tag()) { - .union_tagged => ty.castTag(.union_tagged).?.data.tag_ty, + .union_tagged => { + const union_obj = ty.castTag(.union_tagged).?.data; + assert(union_obj.haveFieldTypes()); + return union_obj.tag_ty; + }, .atomic_order, .atomic_rmw_op, |