nomsu/core/coroutines.nom

#!/usr/bin/env nomsu -V5.12.12.8
#
    This file defines the code that creates and manipulates coroutines
    
use "core/metaprogramming.nom"
use "core/operators.nom"
use "core/control_flow.nom"

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

test:
    $co = (..)
        ->:
            yield 4
            yield 5
            repeat 3 times:
                yield 6
    $nums = []
    for $ in coroutine $co: $nums|add $
    assume ($nums == [4, 5, 6, 6, 6]) or barf "Coroutine iteration failed"
    $d = {x: 0}
    $co2 = (..)
        coroutine:
            $d.x += 1
            yield 1
            $d.x += 1
            yield
            $d.x += 1
    repeat while ((coroutine status of $co2) != "dead"): resume $co2
    assume $d.x == 3
(coroutine $body) parses as (coroutine from (-> $body))
(for $ in coroutine $co $body) compiles to "
    for \($ as lua expr) in coroutine_wrap(\($co as lua expr)) do
        \($body as lua)
    end"