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Merge pull request #47 from dtolnay/anyhow

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Handle anyhow::Error as argument to anyhow!()
This commit is contained in:
David Tolnay 2019-11-18 11:46:34 -08:00 committed by GitHub
commit cb3c80cca7
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2 changed files with 10 additions and 4 deletions
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7
src/kind.rs
View File

@ -45,7 +45,6 @@
// (&error).anyhow_kind().new(error) // (&error).anyhow_kind().new(error)
use crate::Error; use crate::Error;
use std::error::Error as StdError;
use std::fmt::{Debug, Display}; use std::fmt::{Debug, Display};
#[cfg(backtrace)] #[cfg(backtrace)]
@ -80,13 +79,13 @@ pub trait TraitKind: Sized {
} }
} }
impl<T> TraitKind for T where T: StdError + Send + Sync + 'static {} impl<E> TraitKind for E where E: Into<Error> {}
impl Trait { impl Trait {
pub fn new<E>(self, error: E) -> Error pub fn new<E>(self, error: E) -> Error
where where
E: StdError + Send + Sync + 'static, E: Into<Error>,
{ {
Error::from_std(error, backtrace!()) error.into()
} }
} }

7
tests/test_source.rs
View File

@ -53,3 +53,10 @@ fn test_io_source() {
let error = anyhow!(TestError::Io(io)); let error = anyhow!(TestError::Io(io));
assert_eq!("oh no!", error.source().unwrap().to_string()); assert_eq!("oh no!", error.source().unwrap().to_string());
} }
#[test]
fn test_anyhow_from_anyhow() {
let error = anyhow!("oh no!").context("context");
let error = anyhow!(error);
assert_eq!("oh no!", error.source().unwrap().to_string());
}