raskell 0.1.1

Haskell-style functional programming for Rust
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14

error[E0277]: refutable pattern without `throw` is only supported for `Option` in `hdo!`
 --> tests/ui/fail/list_refutable_pattern.rs:5:20
  |
4 |       let _: Vec<i32> = hdo! {
  |  _______________________-
5 | |         Some(x) <- vec![Some(1), None];
  | |                    ^^^^^^^^^^^^^^^^^^^ this bind needs an explicit failure value
6 | |
7 | |         pure x
8 | |     };
  | |_____- required by a bound introduced by this call
  |
  = help: the trait `raskell::__private::HdoPatternBind<_>` is not implemented for `Vec<Option<{integer}>>`
  = note: for `Result`, use `pattern <- expression throw YourError;`