renet/src/macros.rs

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macro_rules! net_trace {
($($arg:expr),*) => {
#[cfg(feature = "log")]
trace!($($arg),*);
#[cfg(not(feature = "log"))]
$( let _ = $arg );*; // suppress unused variable warnings
}
}
macro_rules! net_trace_enabled {
() => ({
#[cfg(feature = "log")]
fn enabled() -> bool { log_enabled!($crate::log::LogLevel::Trace) }
#[cfg(not(feature = "log"))]
fn enabled() -> bool { false }
enabled()
})
}
macro_rules! net_debug {
($($arg:expr),*) => {
#[cfg(feature = "log")]
debug!($($arg),*);
#[cfg(not(feature = "log"))]
$( let _ = $arg );*; // suppress unused variable warnings
}
}
macro_rules! enum_with_unknown {
(
$( #[$enum_attr:meta] )*
pub enum $name:ident($ty:ty) {
$( $variant:ident = $value:expr ),+
}
) => {
enum_with_unknown! {
$( #[$enum_attr] )*
pub doc enum $name($ty) {
$( #[doc(shown)] $variant = $value ),+
}
}
};
(
$( #[$enum_attr:meta] )*
pub doc enum $name:ident($ty:ty) {
$(
$( #[$variant_attr:meta] )+
$variant:ident = $value:expr
),+
}
) => {
#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone, Copy)]
$( #[$enum_attr] )*
pub enum $name {
$(
$( #[$variant_attr] )*
$variant
),*,
Unknown($ty)
}
impl ::core::convert::From<$ty> for $name {
fn from(value: $ty) -> Self {
match value {
$( $value => $name::$variant ),*,
other => $name::Unknown(other)
}
}
}
impl ::core::convert::From<$name> for $ty {
fn from(value: $name) -> Self {
match value {
$( $name::$variant => $value ),*,
$name::Unknown(other) => other
}
}
}
}
}