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 #  #╭╮│╮            ╭╯   │  ╭───╯  ╭───┼─────────
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 # # # #│@ @ │      │    ╰─╮ '│   ╭─│ #  #  #  #  
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        │   │   │     .       │     │

Overview

yerevan.rs is a computation expressions (do-notations) library for Rust, inspired by F#'s CEs, but with changes and improvements in syntax-design.

Docs

Firstly define the struct which is implementing all the neccessary functions for yerevan.rs's computation expressions. Like this:

yer! {
    MyOption =>
    let! ...
    let ...
    ret ...
}

yer! expression	description
`$your_struct` =>	Defines the struct as the provider of computation expression functions.
`let!` $your_var = $your_expression	Uses the last defined struct in macros as the provider of `bind` function and calls the `$that_struct::bind($your_expression, &\|$your_var\| { next code })` expression.
`let` $your_var = $your_expression	Defines the variable `$your_var`
`do!` $your_expression	Uses the last defined struct in macros as the provider of `bind` function and calls the `$that_struct::bind($your_expression, &\|_\| { next code })` expression.
`do` $your_expression	Simply runs `$your_expression`
`ret!` $your_expression	Uses the last defined struct in macros as the provider of `ret_from` function and calls the `$that_struct::ret_from($your_expression)` expression.
`ret` $your_expression	Uses the last defined struct in macros as the provider of `ret` function and calls the `$that_struct::ret($your_expression)` expression.
`yield` $your_expression	Uses the last defined struct in macros as the provider of `combine` and `ret_yield` functions and calls the `$that_struct::combine(yer!($that_struct => next code, $that_struct::ret_yield($your_expression))` expression.

Examples

soon...

yerevan 0.1.2

Overview

Docs

Examples