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refactor: use match with cmp instead of bunch of if's

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This commit is contained in:
Seymur Bagirov 2025-01-16 23:54:33 +04:00
parent 54912b7087
commit 2230c468e4
1 changed files with 29 additions and 25 deletions
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54
src/main.rs
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@ -1,38 +1,42 @@
use std::{env::args_os, ffi::OsString, process::ExitCode};
use std::{cmp::Ordering, env::args_os, ffi::OsString, process::ExitCode};
use izanami::{run_file, run_prompt, RunError};
fn main() -> ExitCode {
let args: Vec<OsString> = args_os().collect();
if args.len() > 2 {
println!("usage: izanami [script]");
return ExitCode::from(64);
} else if args.len() == 2 {
let result = run_file(args[1].to_str().unwrap());
if let Err(RunError::FileReadError(e)) = result {
println!("Couldn't read the file. Reason: {}", e);
return ExitCode::from(1);
}
if let Err(RunError::OtherError(e)) = result {
println!("Error occured. Error: {}", e);
return ExitCode::from(75);
match args.len().cmp(&2) {
Ordering::Greater => {
println!("usage: izanami [script]");
return ExitCode::from(64);
}
Ordering::Equal => {
let result = run_file(args[1].to_str().unwrap());
if let Err(RunError::RuntimeError(r)) = result {
return ExitCode::from(70);
}
if let Err(RunError::FileReadError(e)) = result {
println!("Couldn't read the file. Reason: {}", e);
return ExitCode::from(1);
}
if let Err(RunError::OtherError(e)) = result {
println!("Error occured. Error: {}", e);
return ExitCode::from(75);
}
if let Err(RunError::ParseError) = result {
return ExitCode::from(75);
}
} else {
let result = run_prompt();
if let Err(RunError::RuntimeError(r)) = result {
return ExitCode::from(70);
}
if let Err(res) = result {
println!("Error while processing the repl. Reason: {}", &*res);
return ExitCode::from(1);
if let Err(RunError::ParseError) = result {
return ExitCode::from(75);
}
}
Ordering::Less => {
let result = run_prompt();
if let Err(res) = result {
println!("Error while processing the repl. Reason: {}", &*res);
return ExitCode::from(1);
}
}
}