31 lines
827 B
Rust
31 lines
827 B
Rust
#![warn(clippy::explicit_iter_loop, clippy::redundant_closure_for_method_calls)]
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use std::env;
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use anyhow::{Context, Result};
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pub type DayFunc = fn() -> Result<String>;
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pub fn run(days: &[DayFunc]) -> Result<()> {
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let mut args = env::args();
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args.next();
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match args.next() {
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Some(arg) => {
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let day: usize = arg.parse().context("couldn't parse day number")?;
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let res = days[day - 1]().context("error running day specified")?;
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println!("{}", res);
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}
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None => {
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for (i, day) in days.iter().enumerate() {
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let i = i + 1;
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println!("day{}: ", i);
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let res = day().with_context(|| format!("error running day {}", i))?;
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println!("{}", res);
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}
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}
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}
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Ok(())
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}
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