34 lines
987 B
Rust
34 lines
987 B
Rust
macro_rules! arg {
|
|
($args:ident, $idx:literal, $name:literal) => {
|
|
match $args.get(stringify!($idx)) {
|
|
Some(v) => v,
|
|
None => match $args.get($name) {
|
|
Some(v) => v,
|
|
None => return Err(concat!("Missing argument $", $name, ".").into()),
|
|
},
|
|
};
|
|
};
|
|
($args:ident, $idx:literal, $name:literal=$default:expr) => {
|
|
match $args.get(stringify!($idx)) {
|
|
Some(v) => v.clone(),
|
|
None => match $args.get($name) {
|
|
Some(v) => v.clone(),
|
|
None => $default,
|
|
},
|
|
};
|
|
};
|
|
}
|
|
|
|
macro_rules! decl {
|
|
($f:ident $name:literal, $body:expr) => {
|
|
$f.insert($name.to_owned(), Box::new($body));
|
|
};
|
|
}
|
|
|
|
macro_rules! max_args {
|
|
($args:ident, $count:literal) => {
|
|
if $args.len() > $count {
|
|
return Err(format!("Only {} argument allowed, but {} were passed.", $count, $args.len()).into());
|
|
}
|
|
};
|
|
} |