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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
//! Specified frequency values.
use crate::derives::*;
use cssparser::match_ignore_ascii_case;
/// The unit of a `<frequency>` value.
#[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, PartialOrd, ToShmem)]
#[repr(u8)]
pub enum FrequencyUnit {
/// `Hz`
Hz,
/// `kHz`
Khz,
}
impl FrequencyUnit {
/// Returns the frequency unit for the given string.
#[inline]
pub fn from_str(unit: &str) -> Result<Self, ()> {
Ok(match_ignore_ascii_case! { unit,
"hz" => Self::Hz,
"khz" => Self::Khz,
_ => return Err(())
})
}
/// Returns this unit as a string.
#[inline]
pub fn as_str(self) -> &'static str {
match self {
Self::Hz => "hz",
Self::Khz => "khz",
}
}
}