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#[macro_export]
macro_rules! cached {
($cachename:ident;
fn $name:ident ($($arg:ident : $argtype:ty),*) -> $ret:ty = $body:expr) => {
cached!(
$cachename : $crate::UnboundCache<($($argtype),*), $ret> = $crate::UnboundCache::new();
fn $name($($arg : $argtype),*) -> $ret = $body
);
};
($cachename:ident : $cachetype:ty = $cacheinstance:expr ;
fn $name:ident ($($arg:ident : $argtype:ty),*) -> $ret:ty = $body:expr) => {
lazy_static! {
static ref $cachename: ::std::sync::Mutex<$cachetype> = {
::std::sync::Mutex::new($cacheinstance)
};
}
#[allow(unused_parens)]
pub fn $name($($arg: $argtype),*) -> $ret {
let key = ($($arg.clone()),*);
{
let mut cache = $cachename.lock().unwrap();
let res = $crate::Cached::cache_get(&mut *cache, &key);
if let Some(res) = res { return res.clone(); }
}
let val = (||$body)();
let mut cache = $cachename.lock().unwrap();
$crate::Cached::cache_set(&mut *cache, key, val.clone());
val
}
};
}
#[macro_export]
macro_rules! cached_key {
($cachename:ident : $cachetype:ty = $cacheinstance:expr ;
Key = $key:expr;
fn $name:ident ($($arg:ident : $argtype:ty),*) -> $ret:ty = $body:expr) => {
lazy_static! {
static ref $cachename: ::std::sync::Mutex<$cachetype> = {
::std::sync::Mutex::new($cacheinstance)
};
}
#[allow(unused_parens)]
pub fn $name($($arg: $argtype),*) -> $ret {
let key = $key;
{
let mut cache = $cachename.lock().unwrap();
let res = $crate::Cached::cache_get(&mut *cache, &key);
if let Some(res) = res { return res.clone(); }
}
let val = (||$body)();
let mut cache = $cachename.lock().unwrap();
$crate::Cached::cache_set(&mut *cache, key, val.clone());
val
}
};
}