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use range::Range;
use read_token::ReadToken;
use std::sync::Arc;
use super::ParseResult;
use {
DebugId,
MetaData,
ParseError,
Rule,
};
use tokenizer::TokenizerState;
#[derive(Clone, Debug, PartialEq)]
pub struct Not {
pub rule: Rule,
pub debug_id: DebugId,
}
impl Not {
pub fn parse(
&self,
tokens: &mut Vec<Range<MetaData>>,
state: &TokenizerState,
read_token: &ReadToken,
refs: &[Rule]
) -> ParseResult<TokenizerState> {
let start = read_token;
match self.rule.parse(
tokens, state, read_token, refs
) {
Ok((range, _, _)) => {
let text = read_token.raw_string(range.length);
Err(range.wrap(
ParseError::DidNotExpectTag(Arc::new(text),
self.debug_id)))
}
Err(_) => {
Ok((start.start(), state.clone(), None))
}
}
}
}