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use super::{Context, Error, Parse, Parser};
use decoded_char::DecodedChar;
use locspan::{Meta, Span};
impl<M> Parse<M> for bool {
fn parse_spanned<C, F, E>(
parser: &mut Parser<C, F, E>,
_context: Context,
) -> Result<Meta<Self, Span>, Meta<Error<M, E>, M>>
where
C: Iterator<Item = Result<DecodedChar, E>>,
F: FnMut(Span) -> M,
{
match parser.next_char()? {
Some('t') => match parser.next_char()? {
Some('r') => match parser.next_char()? {
Some('u') => match parser.next_char()? {
Some('e') => Ok(Meta(true, parser.position.current_span())),
unexpected => {
Err(Meta(Error::unexpected(unexpected), parser.position.last()))
}
},
unexpected => Err(Meta(Error::unexpected(unexpected), parser.position.last())),
},
unexpected => Err(Meta(Error::unexpected(unexpected), parser.position.last())),
},
Some('f') => match parser.next_char()? {
Some('a') => match parser.next_char()? {
Some('l') => match parser.next_char()? {
Some('s') => match parser.next_char()? {
Some('e') => Ok(Meta(false, parser.position.current_span())),
unexpected => {
Err(Meta(Error::unexpected(unexpected), parser.position.last()))
}
},
unexpected => {
Err(Meta(Error::unexpected(unexpected), parser.position.last()))
}
},
unexpected => Err(Meta(Error::unexpected(unexpected), parser.position.last())),
},
unexpected => Err(Meta(Error::unexpected(unexpected), parser.position.last())),
},
unexpected => Err(Meta(Error::unexpected(unexpected), parser.position.last())),
}
}
}
