i3status_rs::utilMacro map
source macro_rules! map {
(@extend $map:ident $( $([$($cond_tokens:tt)*])? $key:literal => $value:expr ),* $(,)?) => { ... };
(@extend $map:ident $( $key:expr => $value:expr ),* $(,)?) => { ... };
(@insert $map:ident, $key:expr, $value:expr) => { ... };
(@insert $map:ident, $key:expr, $value:expr, if $cond:expr) => { ... };
(@insert $map:ident, $key:expr, $value:expr, if let $pat:pat = $match_on:expr) => { ... };
($($tt:tt)*) => { ... };
}
Expand description
§Example
ⓘlet opt = Some(1);
let m: HashMap<&'static str, String> = map! {
"key" => "value",
[if true] "hello" => "world",
[if let Some(x) = opt] "opt" => x.to_string(),
};
map! { @extend m
"new key" => "new value",
"one" => "more",
}