typos/crates/dictgen/src/map.rs
2021-07-01 11:14:30 -05:00

91 lines
2.6 KiB
Rust

#[cfg(feature = "codegen")]
pub fn generate_map<'d, W: std::io::Write, V: std::fmt::Display>(
file: &mut W,
name: &str,
value_type: &str,
data: impl Iterator<Item = (&'d str, V)>,
) -> Result<(), std::io::Error> {
let mut data: Vec<_> = data.collect();
data.sort_unstable_by_key(|v| unicase::UniCase::new(v.0));
let mut smallest = usize::MAX;
let mut largest = usize::MIN;
writeln!(
file,
"pub static {}: dictgen::DictTable<{}> = dictgen::DictTable {{",
name, value_type
)?;
writeln!(file, " keys: &[")?;
for (key, _value) in data.iter() {
smallest = std::cmp::min(smallest, key.len());
largest = std::cmp::max(largest, key.len());
let key = if key.is_ascii() {
format!("dictgen::InsensitiveStr::Ascii({:?})", key)
} else {
format!("dictgen::InsensitiveStr::Unicode({:?})", key)
};
writeln!(file, " {},", key)?;
}
if largest == 0 {
smallest = 0;
}
writeln!(file, " ],")?;
writeln!(file, " values: &[")?;
for (_key, value) in data.iter() {
writeln!(file, " {},", value)?;
}
writeln!(file, " ],")?;
writeln!(file, " range: {}..={},", smallest, largest)?;
writeln!(file, "}};")?;
Ok(())
}
pub struct DictMap<V: 'static> {
pub map: phf::Map<crate::InsensitiveStr<'static>, V>,
pub range: std::ops::RangeInclusive<usize>,
}
impl<V> DictMap<V> {
pub fn find(&self, word: &'_ unicase::UniCase<&str>) -> Option<&V> {
if self.range.contains(&word.len()) {
self.map.get(&(*word).into())
} else {
None
}
}
pub fn iter(&self) -> impl Iterator<Item = (unicase::UniCase<&str>, &V)> + '_ {
self.map.entries().map(|(k, v)| (k.convert(), v))
}
}
impl<'s> phf_shared::PhfHash for crate::InsensitiveStr<'s> {
#[inline]
fn phf_hash<H: core::hash::Hasher>(&self, state: &mut H) {
core::hash::Hash::hash(self, state)
}
}
impl<'s> phf_shared::FmtConst for crate::InsensitiveStr<'s> {
fn fmt_const(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
match self {
crate::InsensitiveStr::Ascii(_) => f.write_str("dictgen::InsensitiveStr::Ascii(")?,
crate::InsensitiveStr::Unicode(_) => {
f.write_str("dictgen::InsensitiveStr::Unicode(")?
}
}
self.into_inner().fmt_const(f)?;
f.write_str(")")
}
}
impl<'b, 'a: 'b> phf_shared::PhfBorrow<crate::InsensitiveStr<'b>> for crate::InsensitiveStr<'a> {
fn borrow(&self) -> &crate::InsensitiveStr<'b> {
self
}
}