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testing thing #1

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@lilizoey lilizoey force-pushed the master branch 2 times, most recently from 20d6dd6 to 0188799 Compare April 13, 2024 00:48
lilizoey pushed a commit that referenced this pull request Oct 15, 2024
@Houtamelo
#[rpc] annotation for functions in #[godot_api] inherent impl blocks.
c4dd6b7 
The style is similar to GDScript's @rpc annotation, the macro can be used as follows:

#1 - Separate arguments:
```rust
#[rpc(any_peer, reliable)]
fn some_rpc(&mut self) {
    //..
}
```

Providing overlapping arguments generates a compile error.

Any omitted arguments are set to their default values.

#2 - Provide an expression:
```rust
const CONFIG: RpcArgs = RpcArgs {
    mode: RpcMode::Authority,
    ..RpcArgs::default()
};

#[rpc(config = CONFIG_EXPR)]
fn some_rpc(&mut self) {
    //..
}
```

Number #2 is useful in case you want to reuse the configuration on multiple functions.

Number #2 is mutually exclusive with number #1.
---

The generated macro code works as follows:
- Caches the configuration in a `ClassPlugin`.
- On `__before_ready()`, searches for the configuration in the plugin, registering them with Node::rpc_config().
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