Struct gazebo::any::AnyResult

pub struct AnyResult { /* fields omitted */ }

Like Any, but instead of being a value of non-statically-determined type, provides a result into which a specific type can be written.

use gazebo::any::AnyResult;
let mut res = AnyResult::new::<String>();
res.add(|| String::from("Hello"));
res.add(|| "goodbye");
res.add(|| 42);
assert_eq!(res.result::<String>(), Some(String::from("Hello")));

Implementations

impl AnyResult

pub fn new<T: 'static>() -> Self

Create a new AnyResult that can contain values of type T.

pub fn result<T: 'static>(self) -> Option<T>

Grab the value stored in an AnyResult. Returns None if no value with the right type has been added, otherwise the first value that was added. It is an error to call result with a different type to that which was used with new.

pub fn result_ref<T: 'static>(&self) -> Option<&T>

Same as result, but gets a reference.

pub fn add<T: 'static + Send, F: FnOnce() -> T>(&mut self, f: F) -> &mut Self

Add a value with a given type to the AnyResult. If this call is the first where the type T matches that used for new then the function will be run.