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Add speaker notes for variant-payloads.md

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Fabian Bornhofen 2023-01-10 16:46:57 +01:00
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src/enums/variant-payloads.md
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@ -6,3 +6,11 @@ You can define richer enums where the variants carry data. You can then use the
```rust,editable
{{#include ../../third_party/rust-by-example/webevent.rs}}
```
<details>
* In the above example, accessing the `char` in `KeyPress`, or `x` and `y` in `Click` only works within a `match` statement.
* `match` inspects a hidden discriminant field in the `enum`.
* `WebEvent::Click { ... }` is not exactly the same as `WebEvent::Click(Click)` with a top level `struct Click { ... }`. The inlined version cannot implement traits, for example.
</details>