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aoc: refactor main() function

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This commit is contained in:
Antoine Martin 2019-12-02 16:05:24 +01:00
parent c4d9f6c2db
commit 5bee7a0ce7
4 changed files with 30 additions and 64 deletions
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26
aoc/src/lib.rs
View file

@ -1,6 +1,32 @@
use std::env;
pub type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
#[macro_export]
macro_rules! err {
($($string:expr),+) => (Box::<dyn std::error::Error>::from(format!($($string),+)))
}
type DayFunc = fn() -> Result<()>;
pub fn run(days: &[DayFunc]) -> Result<()> {
let mut args = env::args();
args.next();
match args.next() {
Some(arg) => {
let day: usize = arg.parse().expect("Please provide a day number");
days[day - 1]().unwrap_or_else(|e| eprintln!("error running day specified: {}", e));
}
None => {
for (i, day) in days.iter().enumerate() {
let i = i + 1;
println!("day{}: ", i);
day().unwrap_or_else(|e| eprintln!("error running day {}: {}", i, e));
println!();
}
}
}
Ok(())
}

22
aoc2015/src/main.rs
View file

@ -1,5 +1,3 @@
use std::env;
use aoc::Result;
use aoc2015::day01;
@ -7,23 +5,5 @@ use aoc2015::day01;
fn main() -> Result<()> {
let days: &[fn() -> Result<()>] = &[day01::run];
let mut args = env::args();
args.next();
match args.next() {
Some(arg) => {
let day: usize = arg.parse().expect("Please provide a day number");
days[day - 1]().unwrap_or_else(|e| eprintln!("error running day specified: {}", e));
}
None => {
for (i, day) in days.iter().enumerate() {
let i = i + 1;
println!("day{}: ", i);
day().unwrap_or_else(|e| eprintln!("error running day {}: {}", i, e));
println!();
}
}
}
Ok(())
aoc::run(days)
}

22
aoc2018/src/main.rs
View file

@ -1,5 +1,3 @@
use std::env;
use aoc::Result;
use aoc2018::day01;
@ -11,23 +9,5 @@ use aoc2018::day05;
fn main() -> Result<()> {
let days: &[fn() -> Result<()>] = &[day01::run, day02::run, day03::run, day04::run, day05::run];
let mut args = env::args();
args.next();
match args.next() {
Some(arg) => {
let day: usize = arg.parse().expect("Please provide a day number");
days[day - 1]().unwrap_or_else(|e| eprintln!("error running day specified: {}", e));
}
None => {
for (i, day) in days.iter().enumerate() {
let i = i + 1;
println!("day{}: ", i);
day().unwrap_or_else(|e| eprintln!("error running day {}: {}", i, e));
println!();
}
}
}
Ok(())
aoc::run(days)
}

24
aoc2019/src/main.rs
View file

@ -1,30 +1,10 @@
use std::env;
use aoc::Result;
use aoc2019::day01;
use aoc2019::day02;
use aoc2019::Result;
fn main() -> Result<()> {
let days: &[fn() -> Result<()>] = &[day01::run, day02::run];
let mut args = env::args();
args.next();
match args.next() {
Some(arg) => {
let day: usize = arg.parse().expect("Please provide a day number");
days[day - 1]().unwrap_or_else(|e| eprintln!("error running day specified: {}", e));
}
None => {
for (i, day) in days.iter().enumerate() {
let i = i + 1;
println!("day{}: ", i);
day().unwrap_or_else(|e| eprintln!("error running day {}: {}", i, e));
println!();
}
}
}
Ok(())
aoc::run(days)
}