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|
use include_dir::Dir;
use serde::de;
macro_rules! __static_cfg_include {
(toml_file, $filename:expr) => {
include_str!($filename)
};
(toml_dir, $filename:expr) => {
include_dir!($filename)
};
(json_file, $filename:expr) => {
include_str!($filename)
};
(json_dir, $filename:expr) => {
include_dir!($filename)
};
(cfg_dir, $filename:expr) => {
include_dir!($filename)
};
}
macro_rules! __static_cfg_type {
(toml_file) => (&'static str);
(json_file) => (&'static str);
(toml_dir) => (include_dir::Dir<'static>);
(json_dir) => (include_dir::Dir<'static>);
(cfg_dir) => (include_dir::Dir<'static>);
}
macro_rules! __static_cfg_parse {
(toml_file, $e:expr) => {
toml::from_str($e).unwrap()
};
(json_file, $e:expr) => {
serde_json::from_str($e).unwrap()
};
(toml_dir, $e:expr) => {
crate::util::static_cfg::parse_toml_dir($e)
};
(json_dir, $e:expr) => {
crate::util::static_cfg::parse_json_dir($e)
};
(cfg_dir, $e:expr) => {
crate::util::static_cfg::parse_cfg_dir($e);
};
}
macro_rules! __static_cfg_inner {
($(#[$attr:meta])* ($($vis:tt)*) static ref $N:ident : $T:ty = $kind:ident($filename:expr); $($t:tt)*) => {
// static RAW: &'static str = __static_cfg_include!($kind, $filename);
static RAW: __static_cfg_type!($kind) = __static_cfg_include!($kind, $filename);
lazy_static! {
$(#[$attr])* static ref $N: $T = __static_cfg_parse!($kind, RAW);
}
static_cfg!($($t)*);
}
}
#[macro_export]
macro_rules! static_cfg {
($(#[$attr:meta])* static ref $N:ident : $T:ty = $kind:ident($filename:expr); $($t:tt)*) => {
__static_cfg_inner!($(#[$attr])* () static ref $N : $T = $kind($filename); $($t)*);
};
($(#[$attr:meta])* pub static ref $N:ident : $T:ty = $kind:ident($filename:expr); $($t:tt)*) => {
__static_cfg_inner!($(#[$attr])* (pub) static ref $N : $T = $kind($filename); $($t)*);
};
($(#[$attr:meta])* pub ($($vis:tt)+) static ref $N:ident : $T:ty = $kind:ident($filename:expr); $($t:tt)*) => {
__static_cfg_inner!($(#[$attr])* (pub ($($vis)+)) static ref $N : $T = $kind($filename); $($t)*);
};
() => ()
}
pub fn parse_cfg_dir<'a, T>(d: Dir<'a>) -> Vec<T>
where
T: de::Deserialize<'a>,
{
d.files()
.iter()
.filter_map(|f| {
let path = f.path();
let contents = f.contents_utf8().unwrap();
match path.extension().and_then(|e| e.to_str()) {
Some("toml") => {
Some(toml::from_str(contents).unwrap_or_else(|e| {
panic!(
"Error parsing TOML file {}: {}",
path.display(),
e
)
}))
}
Some("json") => {
Some(serde_json::from_str(contents).unwrap_or_else(|e| {
panic!(
"Error parsing JSON file {}: {}",
path.display(),
e
)
}))
}
// > YAML currently does not support zero-copy deserialization
// Some("yaml") => {
// Some(serde_yaml::from_str(contents).unwrap_or_else(|e| {
// panic!(
// "Error parsing YAML file {}: {}",
// path.display(),
// e
// )
// }))
// }
_ => None,
}
})
.collect()
}
pub fn parse_toml_dir<'a, T>(d: Dir<'a>) -> Vec<T>
where
T: de::Deserialize<'a>,
{
d.files()
.iter()
.map(|f| {
toml::from_str(f.contents_utf8().unwrap()).unwrap_or_else(|e| {
panic!("Error parsing TOML file {}: {}", f.path, e)
})
})
.collect()
}
pub fn parse_json_dir<'a, T>(d: Dir<'a>) -> Vec<T>
where
T: de::Deserialize<'a>,
{
d.files()
.iter()
.map(|f| serde_json::from_str(f.contents_utf8().unwrap()).unwrap())
.collect()
}
|
