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/// A workaround for a clippy warning
#[doc(hidden)]
#[derive(Clone)]
pub struct Span;
impl Span {
/// A no-op
pub fn record<V>(&self, _field: &str, _value: V) -> &Self {
self
}
}
/// A macro to create a span.
#[macro_export]
macro_rules! span {
(target: $target:expr, $lvl:expr, $name:expr, $($fields:tt)*) => {
$crate::Span
};
(target: $target:expr, $lvl:expr, $name:expr) => {
$crate::span!(target: $target, $lvl, $name,)
};
($lvl:expr, $name:expr, $($fields:tt)*) => {
$crate::span!(
target: module_path!(),
$lvl,
$name,
$($fields)*
)
};
($lvl:expr, $name:expr) => {
$crate::span!(
target: module_path!(),
$lvl,
$name,
)
};
}
/// Create an event with the given level.
#[macro_export]
macro_rules! event {
(target: $target:expr, $lvl:expr, { $($fields:tt)* } )=> (
{}
);
(target: $target:expr, $lvl:expr, { $($fields:tt)* }, $($arg:tt)+ ) => (
$crate::event!(
target: $target,
$lvl,
{ message = format_args!($($arg)+), $($fields)* }
)
);
(target: $target:expr, $lvl:expr, $($k:ident).+ = $($fields:tt)* ) => (
$crate::event!(target: $target, $lvl, { $($k).+ = $($fields)* })
);
(target: $target:expr, $lvl:expr, $($arg:tt)+ ) => (
$crate::event!(target: $target, $lvl, { $($arg)+ })
);
( $lvl:expr, { $($fields:tt)* }, $($arg:tt)+ ) => (
$crate::event!(
target: module_path!(),
$lvl,
{ message = format_args!($($arg)+), $($fields)* }
)
);
($lvl:expr, $($k:ident).+ = $($field:tt)*) => (
$crate::event!(
target: module_path!(),
$lvl,
{ $($k).+ = $($field)*}
)
);
($lvl:expr, $($k:ident).+, $($field:tt)*) => (
$crate::event!(
target: module_path!(),
$lvl,
{ $($k).+, $($field)*}
)
);
($lvl:expr, ?$($k:ident).+, $($field:tt)*) => (
$crate::event!(
target: module_path!(),
$lvl,
{ ?$($k).+, $($field)*}
)
);
($lvl:expr, %$($k:ident).+, $($field:tt)*) => (
$crate::event!(
target: module_path!(),
$lvl,
{ %$($k).+, $($field)*}
)
);
($lvl:expr, ?$($k:ident).+) => (
$crate::event!($lvl, ?$($k).+,)
);
($lvl:expr, %$($k:ident).+) => (
$crate::event!($lvl, %$($k).+,)
);
($lvl:expr, $($k:ident).+) => (
$crate::event!($lvl, $($k).+,)
);
( $lvl:expr, $($arg:tt)+ ) => (
$crate::event!(target: module_path!(), $lvl, { $($arg)+ })
);
}
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