Macro genawaiter::stack::let_gen

macro_rules! let_gen {
    ($ name : ident, $ body : expr $ (,) ?) => { ... };
}

Creates a generator.

The first argument is the name of the resulting variable.

let_gen!(my_generator, { /* ... */ });
// Think of this as the spiritual equivalent of:
let mut my_generator = Gen::new(/* ... */);

The second argument is the body of the generator. It should contain one or more calls to the yield_! macro.

This macro is a shortcut for creating both a generator and its backing state (called a Shelf). If you (or your IDE) dislike macros, you can also do the bookkeeping by hand by using Gen::new, though note that this requires you to trade away safety.

Examples

See the module-level docs for examples.