diff options
Diffstat (limited to 'vendored/mpd/src/macros.rs')
| -rw-r--r-- | vendored/mpd/src/macros.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/vendored/mpd/src/macros.rs b/vendored/mpd/src/macros.rs new file mode 100644 index 0000000..76690db --- /dev/null +++ b/vendored/mpd/src/macros.rs @@ -0,0 +1,27 @@ +#![macro_use] + +macro_rules! get_field_impl { + ($op:ident, $map:expr, bool $name:expr) => { + $map.$op($name).ok_or(Error::Proto(ProtoError::NoField($name))) + .map(|v| v == "1")? + }; + ($op:ident, $map:expr, opt $name:expr) => { + $map.$op($name).map(|v| v.parse().map(Some)).unwrap_or(Ok(None))? + }; + ($op:ident, $map:expr, $name:expr) => { + $map.$op($name).ok_or(Error::Proto(ProtoError::NoField($name))) + .and_then(|v| v.parse().map_err(|e| Error::Parse(From::from(e))))? + }; +} + +macro_rules! get_field { + ($map:expr, bool $name:expr) => { get_field_impl!(get, $map, bool $name) }; + ($map:expr, opt $name:expr) => { get_field_impl!(get, $map, opt $name) }; + ($map:expr, $name:expr) => { get_field_impl!(get, $map, $name) } +} + +macro_rules! pop_field { + ($map:expr, bool $name:expr) => { get_field_impl!(remove, $map, bool $name) }; + ($map:expr, opt $name:expr) => { get_field_impl!(remove, $map, opt $name) }; + ($map:expr, $name:expr) => { get_field_impl!(remove, $map, $name) } +} |