Function opt_parse_expr_with_precedence

components/dada-parser/src/expr.rs:47–63

(
    db: &'db dyn crate::Db,
    parser: &mut Parser<'_, 'db>,
    precedence: impl FnOnce(
        &'db dyn crate::Db,
        &mut Parser<'_, 'db>,
    ) -> Result<Option<AstExprKind<'db>>, crate::

}

fn opt_parse_expr_with_precedence<'db>(
    db: &'db dyn crate::Db,
    parser: &mut Parser<'_, 'db>,
    precedence: impl FnOnce(
        &'db dyn crate::Db,
        &mut Parser<'_, 'db>,
    ) -> Result<Option<AstExprKind<'db>>, crate::ParseFail<'db>>,
) -> Result<Option<AstExpr<'db>>, crate::ParseFail<'db>> {
    let start_span = parser.peek_span();
    let Some(kind) = precedence(db, parser)? else {
        return Ok(None);
    };
    Ok(Some(AstExpr::new(
        start_span.to(db, parser.last_span()),
        kind,
    )))
}

const BINARY_OP_PRECEDENCE: &[&[(Op, AstBinaryOp)]] = &[
    &[