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| author | Harald Hoyer <harald@redhat.com> | 2019-02-07 16:10:34 +0100 |
|---|---|---|
| committer | Harald Hoyer <harald@hoyer.xyz> | 2019-02-09 16:04:25 +0100 |
| commit | f06af1ff178014dadd62391a4a06e7fff8f2a6a1 (patch) | |
| tree | 9588f5e1fda722fdf9f4ef40f28cc3c4265e0881 /src/libsyntax/parse | |
| parent | 825f355c7483746f3a17166f34dfabe3b2df1741 (diff) | |
| download | rust-f06af1ff178014dadd62391a4a06e7fff8f2a6a1.tar.gz rust-f06af1ff178014dadd62391a4a06e7fff8f2a6a1.zip | |
impl iter_sources() and iter_chain() for dyn Error
Examples:
```rust
let next_error_type_a = err
.iter_chain()
.filter_map(Error::downcast_ref::<ErrorTypeA>)
.next();
```
```rust
let source_root_error = err.iter_chain().last();
```
Credit for the ErrorIter goes to Tim Diekmann
https://www.reddit.com/r/rust/comments/aj3lpg/is_an_iterator_impl_over_errorsource_possible/
Diffstat (limited to 'src/libsyntax/parse')
0 files changed, 0 insertions, 0 deletions