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Use function pointers over dyn traits

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This commit is contained in:
Bert Peters
2021-11-28 16:49:37 +01:00
parent c985ba8a1a
commit 186d91d1b7
3 changed files with 21 additions and 37 deletions
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7
2021/src/main.rs
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@@ -30,7 +30,6 @@ struct Opts {
fn main() {
let opts: Opts = Opts::parse();
let mut implementation = get_implementation(opts.day.get());
let mut input: Box<dyn Read> = if let Some(input) = opts.input {
Box::new(File::open(&input).expect("Failed to open input"))
} else {
@@ -38,11 +37,7 @@ fn main() {
};
let begin = Instant::now();
let result = if opts.part2 {
implementation.part2(&mut input)
} else {
implementation.part1(&mut input)
};
let result = get_implementation(opts.day.get(), opts.part2)(&mut *input);
if opts.time {
eprintln!("Execution time: {:?}", Instant::now().duration_since(begin));