wgpu_core/
error.rs

1use core::fmt;
2use std::{error::Error, sync::Arc};
3
4use thiserror::Error;
5
6#[cfg(send_sync)]
7pub type ContextErrorSource = Box<dyn Error + Send + Sync + 'static>;
8#[cfg(not(send_sync))]
9pub type ContextErrorSource = Box<dyn Error + 'static>;
10
11#[derive(Debug, Error)]
12#[error(
13    "In {fn_ident}{}{}{}",
14    if self.label.is_empty() { "" } else { ", label = '" },
15    self.label,
16    if self.label.is_empty() { "" } else { "'" }
17)]
18pub struct ContextError {
19    pub fn_ident: &'static str,
20    #[source]
21    pub source: ContextErrorSource,
22    pub label: String,
23}
24
25/// Don't use this error type with thiserror's #[error(transparent)]
26#[derive(Clone)]
27pub struct MultiError {
28    inner: Vec<Arc<dyn Error + Send + Sync + 'static>>,
29}
30
31impl MultiError {
32    pub fn new<T: Error + Send + Sync + 'static>(
33        iter: impl ExactSizeIterator<Item = T>,
34    ) -> Option<Self> {
35        if iter.len() == 0 {
36            return None;
37        }
38        Some(Self {
39            inner: iter.map(Box::from).map(Arc::from).collect(),
40        })
41    }
42
43    pub fn errors(&self) -> Box<dyn Iterator<Item = &(dyn Error + Send + Sync + 'static)> + '_> {
44        Box::new(self.inner.iter().map(|e| e.as_ref()))
45    }
46}
47
48impl fmt::Debug for MultiError {
49    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
50        fmt::Debug::fmt(&self.inner[0], f)
51    }
52}
53
54impl fmt::Display for MultiError {
55    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
56        fmt::Display::fmt(&self.inner[0], f)
57    }
58}
59
60impl Error for MultiError {
61    fn source(&self) -> Option<&(dyn Error + 'static)> {
62        self.inner[0].source()
63    }
64}
wgpu_core/error.rs

wgpu_core/
error.rs
