arch-pkg-text 0.10.0

Pure Rust library to parse Arch Linux packages' structured text formats
Documentation 
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use super::ReuseAdvice;
use crate::desc::{ParsedField, Query, QueryMut};

/// Wrapper struct to permit [`QueryMut`] on a struct that only implements [`Query`].
#[derive(Debug, Default, Clone, Copy)]
pub struct DeriveQueryMut<Querier: ?Sized>(pub Querier);

impl<'a, Querier: Query<'a> + ?Sized> Query<'a> for DeriveQueryMut<Querier> {
    fn query_raw_text(&self, field: ParsedField) -> Option<&'a str> {
        self.0.query_raw_text(field)
    }
}

impl<'a, Querier: Query<'a> + ?Sized> QueryMut<'a> for DeriveQueryMut<Querier> {
    fn query_raw_text_mut(&mut self, field: ParsedField) -> Option<&'a str> {
        self.query_raw_text(field)
    }
}

impl<Querier: ReuseAdvice + ?Sized> ReuseAdvice for DeriveQueryMut<Querier> {
    type ShouldReuse = Querier::ShouldReuse;
}