ocl_include/source/
container.rs

1use super::Source;
2use std::{
3    io,
4    path::{Path, PathBuf},
5    rc::Rc,
6};
7
8/// Vector of sources is also source.
9impl<S: Source> Source for Vec<S> {
10    fn read(&self, path: &Path, dir: Option<&Path>) -> io::Result<(PathBuf, String)> {
11        let mut res = None;
12        for source in self.iter() {
13            match source.read(path, dir) {
14                Ok(x) => {
15                    res = Some(Ok(x));
16                    break;
17                }
18                Err(e) => match e.kind() {
19                    io::ErrorKind::NotFound => continue,
20                    _ => {
21                        res = Some(Err(e));
22                        break;
23                    }
24                },
25            }
26        }
27
28        match res {
29            Some(x) => x,
30            None => Err(io::Error::new(
31                io::ErrorKind::NotFound,
32                format!("path: {:?}, dir: {:?}", path, dir),
33            )),
34        }
35    }
36}
37
38#[macro_export]
39macro_rules! source_vec {
40    ($($x:expr),* $(,)?) => {
41        vec![ $(Box::new($x) as Box::<dyn $crate::Source>),* ]
42    };
43}
44
45/// Source reference is also source.
46impl<'a, S: Source> Source for &'a S {
47    fn read(&self, path: &Path, dir: Option<&Path>) -> io::Result<(PathBuf, String)> {
48        (*self).read(path, dir)
49    }
50}
51
52/// Source Box is also source.
53impl Source for Box<dyn Source> {
54    fn read(&self, path: &Path, dir: Option<&Path>) -> io::Result<(PathBuf, String)> {
55        self.as_ref().read(path, dir)
56    }
57}
58
59/// Source Rc is also source.
60impl<S: Source> Source for Rc<S> {
61    fn read(&self, path: &Path, dir: Option<&Path>) -> io::Result<(PathBuf, String)> {
62        self.as_ref().read(path, dir)
63    }
64}
ocl_include/source/container.rs

ocl_include/source/
container.rs
