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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/thiserror/tests/test_source.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/thiserror/tests/test_source.rs')
-rw-r--r--vendor/thiserror/tests/test_source.rs67
1 files changed, 67 insertions, 0 deletions
diff --git a/vendor/thiserror/tests/test_source.rs b/vendor/thiserror/tests/test_source.rs
new file mode 100644
index 000000000..ab16097b2
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+++ b/vendor/thiserror/tests/test_source.rs
@@ -0,0 +1,67 @@
+#![deny(clippy::all, clippy::pedantic)]
+
+use std::error::Error as StdError;
+use std::io;
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+#[error("implicit source")]
+pub struct ImplicitSource {
+ source: io::Error,
+}
+
+#[derive(Error, Debug)]
+#[error("explicit source")]
+pub struct ExplicitSource {
+ source: String,
+ #[source]
+ io: io::Error,
+}
+
+#[derive(Error, Debug)]
+#[error("boxed source")]
+pub struct BoxedSource {
+ #[source]
+ source: Box<dyn StdError + Send + 'static>,
+}
+
+#[test]
+fn test_implicit_source() {
+ let io = io::Error::new(io::ErrorKind::Other, "oh no!");
+ let error = ImplicitSource { source: io };
+ error.source().unwrap().downcast_ref::<io::Error>().unwrap();
+}
+
+#[test]
+fn test_explicit_source() {
+ let io = io::Error::new(io::ErrorKind::Other, "oh no!");
+ let error = ExplicitSource {
+ source: String::new(),
+ io,
+ };
+ error.source().unwrap().downcast_ref::<io::Error>().unwrap();
+}
+
+#[test]
+fn test_boxed_source() {
+ let source = Box::new(io::Error::new(io::ErrorKind::Other, "oh no!"));
+ let error = BoxedSource { source };
+ error.source().unwrap().downcast_ref::<io::Error>().unwrap();
+}
+
+macro_rules! error_from_macro {
+ ($($variants:tt)*) => {
+ #[derive(Error)]
+ #[derive(Debug)]
+ pub enum MacroSource {
+ $($variants)*
+ }
+ }
+}
+
+// Test that we generate impls with the proper hygiene
+#[rustfmt::skip]
+error_from_macro! {
+ #[error("Something")]
+ Variant(#[from] io::Error)
+}