Struct breaktarget::BreakTarget

pub struct BreakTarget<T>(_);

This object represents the target stack frame which we will unwind toward when the break_with method is invoked. The value which we are breaking with will be stored within the BreakTarget to be returned when control flow resumes.

Methods

impl<T> BreakTarget<T>

fn deploy<F>(func: F) -> T where
    F: FnOnce(&BreakTarget<T>) -> T, 

Deploy a break target. The target will be passed by reference to the argument closure. The BreakTarget object provides a single break_with method, which can be invoked to halt execution and return control to the deployment site. If the break_with function was not invoked, the return value of the closure will instead be produced.

fn break_with(&self, data: T) -> !

Aborts the current function, returning control to the BreakTarget's deploy point. The argument to this method will be the return value of the deploy method.

Trait Implementations

impl<T: Debug> Debug for BreakTarget<T>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.