adventurous/
solve.rs

1use std::fmt::{Debug, Display};
2
3use anyhow::Result;
4
5use crate::Input;
6
7/// A trait for solving an Advent of Code puzzle.
8///
9/// This trait is automatically implemented for functions that take a reference
10/// to an [`Input`] and return a [`Result`] containing a type that implements
11/// [`Debug`], [`Display`], and [`PartialEq`]:
12///
13/// ```
14/// use adventurous::Input;
15/// use anyhow::Result;
16///
17/// fn part_one(input: &Input) -> Result<usize> {
18///     Ok(42)
19/// }
20/// ```
21pub trait Solve {
22    /// The answer to the puzzle.
23    type Answer: Debug + Display + PartialEq;
24
25    /// Produces an answer from the provided [`Input`].
26    fn solve(&self, input: &Input) -> Result<Self::Answer>;
27}
28
29impl<A, F> Solve for F
30where
31    A: Debug + Display + PartialEq,
32    F: Fn(&Input) -> Result<A>,
33{
34    type Answer = A;
35
36    fn solve(&self, input: &Input) -> Result<Self::Answer> {
37        self(input)
38    }
39}
adventurous/solve.rs

adventurous/
solve.rs
