impl-opaque 0.3.0

Macro for declaring complex struct and initializer
Documentation 
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# `impl-opaque`

[Documentation](https://docs.rs/impl-opaque/latest)

Declare complex opaque struct using impl block

This crate is no_std.

## Usage

```rust no_run
trait Trait {
    fn run(&self);
}

// Using trait impl block
#[opaque(as pub /* optional struct vis */ , msg: &str /* constructor */ )]
impl Trait for TraitImpl {
    fn run(&self) {
        #[field]
        let ref msg: String = msg.to_string();

        println!("{}", msg);
    }
}

// Using struct impl block
#[opaque(msg: &str)]

impl Impl {
    fn run(&self) {
        #[field]
        let ref msg: String = msg.to_string();

        println!("{}", msg);
    }
}

fn main() {
    let trait_impl = TraitImpl::new("hello world");
    let imp = Impl::new("hello world");
}
```

## Examples

See `examples` for simple example

## License

This crate is licensed under MIT OR Apache-2.0