starlark/eval/compiler/
span.rs

1/*
2 * Copyright 2019 The Starlark in Rust Authors.
3 * Copyright (c) Facebook, Inc. and its affiliates.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *     https://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18use std::ops::Deref;
19
20use crate::eval::runtime::frame_span::FrameSpan;
21
22/// Similar to `Spanned<T>` but with file span.
23///
24/// For intermediate representation.
25#[derive(Clone, Copy, Debug)]
26pub(crate) struct IrSpanned<T> {
27    pub(crate) span: FrameSpan,
28    pub(crate) node: T,
29}
30
31impl<T> IrSpanned<T> {
32    pub fn map<U>(&self, f: impl FnOnce(&T) -> U) -> IrSpanned<U> {
33        IrSpanned {
34            node: f(&self.node),
35            span: self.span,
36        }
37    }
38}
39
40impl<T> Deref for IrSpanned<T> {
41    type Target = T;
42
43    fn deref(&self) -> &T {
44        &self.node
45    }
46}
starlark/eval/compiler/span.rs

starlark/eval/compiler/
span.rs
