Function conch_runtime::eval::assign

pub fn assign<P: ?Sized, W, E: ?Sized>(
    strict: bool, 
    param: &P, 
    assign: Option<W>, 
    env: &E, 
    cfg: TildeExpansion
) -> Assign<W::EvalResult, W::EvalFuture> where
    P: ParamEval<E, EvalResult = W::EvalResult> + Display,
    W: WordEval<E>, 

Constructs future representing a Assign parameter substitution evaluation.

First, param will be evaluated and returned as is as long as the result is non-empty, or if the result is defined-but-empty and strict = false.

Otherwise, assign will be evaluated using cfg, that value assigned to the variable in the current environment, and the value yielded.

Note: field splitting will neither be done on the parameter, nor the value to assign.