duskphantom_frontend/parse/
macros.rs

1// Copyright 2024 Duskphantom Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14//
15// SPDX-License-Identifier: Apache-2.0
16
17#[macro_export]
18macro_rules! gen_lrec_binary {
19    ($fn_name:ident, $op_name:ident, $base:ident) => {
20        pub fn $fn_name(input: &mut &str) -> PResult<Expr> {
21            let head = $base.parse_next(input)?;
22            let tail: Vec<(BinaryOp, Expr)> = repeat(0.., ($op_name, $base)).parse_next(input)?;
23            Ok(if (tail.is_empty()) {
24                head
25            } else {
26                Expr::Binary(Box::new(head), tail)
27            })
28        }
29    };
30}
duskphantom_frontend/parse/macros.rs

duskphantom_frontend/parse/
macros.rs
