iowo/crates/lang/src/parser/grammar/expression.rs

use crate::parser::{syntax_kind::SyntaxKind::*, CompletedMarker, Parser};

use self::{collection::collection, instruction::instr, lit::literal};

mod collection;
mod instruction;
mod lit;

pub fn expression(p: &mut Parser) -> Option<CompletedMarker> {
    let expr = p.start("expr");

    if atom(p).or_else(|| instr(p)).is_none() {
        expr.abandon(p);
        return None;
    }

    Some(expr.complete(p, EXPR))
}

pub fn atom(p: &mut Parser) -> Option<CompletedMarker> {
    literal(p).or_else(|| collection(p))
}