Method validate_token

libs/@local/hashql/syntax-jexpr/src/parser/state.rs:126–148

(
        &mut self,
        token: T,
        expected: Expected,
    )

    }

    fn validate_token<'source, T>(
        &mut self,
        token: T,
        expected: Expected,
    ) -> Result<T, LexerDiagnostic>
    where
        T: AsRef<Token<'source>>,
    {
        let token_ref = token.as_ref();
        let syntax_kind = token_ref.kind.syntax();

        match expected {
            Expected::Hint(_) => return Ok(token),
            Expected::Validate(set) if set.contains(syntax_kind) => {
                return Ok(token);
            }
            Expected::Validate(_) => {}
        }

        let span = self.insert_range(token_ref.span);

        Err(unexpected_token(span, syntax_kind, expected.into_set()))
    }
}

/// Represents expectations for token validation in the parser.