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extern crate phf;
use unicase::UniCase;
include!(concat!(env!("OUT_DIR"), "/mime_types_generated.rs"));
#[cfg(feature = "rev-mappings")]
struct TopLevelExts {
start: usize,
end: usize,
subs: phf::Map<UniCase<&'static str>, (usize, usize)>,
}
pub fn get_mime_types(ext: &str) -> Option<&'static [&'static str]> {
map_lookup(&MIME_TYPES, ext).cloned()
}
pub fn get_extensions(toplevel: &str, sublevel: &str) -> Option<&'static [&'static str]> {
if toplevel == "*" {
return Some(EXTS);
}
let top = map_lookup(&REV_MAPPINGS, toplevel)?;
if sublevel == "*" {
return Some(&EXTS[top.start..top.end]);
}
let sub = map_lookup(&top.subs, sublevel)?;
Some(&EXTS[sub.0..sub.1])
}
fn map_lookup<'key, 'map: 'key, V>(
map: &'map phf::Map<UniCase<&'static str>, V>,
key: &'key str,
) -> Option<&'map V> {
// FIXME: this doesn't compile unless we transmute `key` to `UniCase<&'static str>`
// https://github.com/sfackler/rust-phf/issues/169
map.get(&UniCase::new(key))
}
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