Macro rhai::def_package [−][src]
macro_rules! def_package {
($root : ident : $package : ident : $comment : expr, $lib : ident, $block :
stmt) => { ... };
}
Expand description
Macro that makes it easy to define a package (which is basically a shared module) and register functions into it.
Functions can be added to the package using the standard module methods such as
set_fn_2
, set_fn_3_mut
, set_fn_0
etc.
Examples
use rhai::{Dynamic, EvalAltResult};
use rhai::def_package;
fn add(x: i64, y: i64) -> Result<i64, Box<EvalAltResult>> { Ok(x + y) }
def_package!(rhai:MyPackage:"My super-duper package", lib,
{
// Load a binary function with all value parameters.
lib.set_fn_2("my_add", add);
});
The above defines a package named ‘MyPackage’ with a single function named ‘my_add’.