protospec-build 0.3.0

One binary format language to rule them all, One binary format language to find them, One binary format language to bring them all and in the darkness bind them.
Documentation 
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use super::*;

pub fn parse_unary_expression(t: &mut TokenIter) -> ParseResult<Expression> {
    let mut ops = vec![];
    while let Some(token) = t.eat_any(&[Token::Not, Token::Minus, Token::BitNot]) {
        ops.push(token);
    }
    let mut inner = parse_array_index_expression(t)?;
    for op in ops.into_iter().rev() {
        inner = Expression::Unary(UnaryExpression {
            span: op.span + *inner.span(),
            op: match op.token {
                Token::Not => UnaryOp::Not,
                Token::Minus => UnaryOp::Negate,
                Token::BitNot => UnaryOp::BitNot,
                _ => unimplemented!(),
            },
            inner: Box::new(inner),
        });
    }
    Ok(inner)
}