adventurous 0.3.0

A companion crate for solving Advent of Code puzzles.
Documentation 
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use std::fmt::{Debug, Display};

use anyhow::Result;

use crate::Input;

/// A trait for solving an Advent of Code puzzle.
///
/// This trait is automatically implemented for functions that take a reference
/// to an [`Input`] and return a [`Result`] containing a type that implements
/// [`Debug`], [`Display`], and [`PartialEq`]:
///
/// ```
/// use adventurous::Input;
/// use anyhow::Result;
///
/// fn part_one(input: &Input) -> Result<usize> {
///     Ok(42)
/// }
/// ```
pub trait Solve {
    /// The answer to the puzzle.
    type Answer: Debug + Display + PartialEq;

    /// Produces an answer from the provided [`Input`].
    fn solve(&self, input: &Input) -> Result<Self::Answer>;
}

impl<A, F> Solve for F
where
    A: Debug + Display + PartialEq,
    F: Fn(&Input) -> Result<A>,
{
    type Answer = A;

    fn solve(&self, input: &Input) -> Result<Self::Answer> {
        self(input)
    }
}