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zig/test/cases/compile_errors
David Rubin aa2b178029 disallow switch case capture discards
Previously Zig allowed you to write something like,
```zig
switch (x) {
    .y => |_| {
```

This seems a bit strange because in other cases, such as when
capturing the tag in a switch case,
```zig
switch (x) {
    .y => |_, _| {
```
this produces an error.

The only usecase I can think of for the previous behaviour is
if you wanted to assert that all union payloads are able
to coerce,
```zig
const X = union(enum) { y: u8, z: f32 };

switch (x) {
    .y, .z => |_| {
```

This will compile-error with the `|_|` and pass without it.

I don't believe this usecase is strong enough to keep the current
behaviour; it was never used in the Zig codebase and I cannot
find a single usage of this behaviour in the real world, searching
through Sourcegraph.
2026-01-11 11:37:16 +00:00
..
2025-02-03 09:14:37 +00:00
2025-11-22 22:42:38 +00:00
2025-01-29 06:35:22 +00:00
2025-01-29 06:35:22 +00:00
2025-11-22 22:42:38 +00:00