## FireDBG Support Library

### `fire::dbg!`

This macro allows you to capture the value of a variable via runtime inspection in FireDBG.

Usage example:

```rust
use firedbg_lib::fire;

fn some_fn(v: i32) -> i32 {
    fire::dbg!(v) + 1
}

fn other_fn(v: i32) -> i32 {
    fire::dbg!("arg_v", v) + 1
}
```

Which `fire::dbg!(v)` would expand to `__firedbg_trace__("v", v)` when compiled under debug mode.
The label could be customized, which `fire::dbg!("arg_v", v)` would expand to `__firedbg_trace__("arg_v", v)`.
In release mode, it would expand to an expression passing through the value, i.e. `{ v }`.

Note that the function passes through the ownership of the variable, just like the [`std::dbg!`](https://doc.rust-lang.org/std/macro.dbg.html) macro.

```rust
fn __firedbg_trace__<T>(name: &'static str, v: T) -> T { v }
```