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#[macro_export]
macro_rules! ctx {
($state:ident: $type:ty) => {
static mut $state: Option<$type> = None;
}
}
#[macro_export]
macro_rules! ctx_init {
($state:ident, $value:expr) => {
unsafe {
if $state.is_none() {
$state = Some($value);
} else {
panic!("cannot initialize {} twice", stringify!($state));
}
}
}
}
#[macro_export]
macro_rules! ctx_get {
($state:ident) => {
unsafe {
$state
.as_ref()
.unwrap_or_else(|| panic!("{} not initialized", stringify!($state)))
}
}
}
#[macro_export]
macro_rules! ctx_mut {
($state:ident) => {
unsafe {
$state
.as_mut()
.unwrap_or_else(|| panic!("{} not initialized", stringify!($state)))
}
}
}
#[macro_export]
macro_rules! ctx_ok {
($state:ident) => {
unsafe {
$state
.is_some()
}
}
}