summaryrefslogtreecommitdiff
path: root/vendor/thiserror/tests/test_generics.rs
diff options
context:
space:
mode:
authorValentin Popov <valentin@popov.link>2024-01-08 00:21:28 +0300
committerValentin Popov <valentin@popov.link>2024-01-08 00:21:28 +0300
commit1b6a04ca5504955c571d1c97504fb45ea0befee4 (patch)
tree7579f518b23313e8a9748a88ab6173d5e030b227 /vendor/thiserror/tests/test_generics.rs
parent5ecd8cf2cba827454317368b68571df0d13d7842 (diff)
downloadfparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.tar.xz
fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.zip
Initial vendor packages
Signed-off-by: Valentin Popov <valentin@popov.link>
Diffstat (limited to 'vendor/thiserror/tests/test_generics.rs')
-rw-r--r--vendor/thiserror/tests/test_generics.rs161
1 files changed, 161 insertions, 0 deletions
diff --git a/vendor/thiserror/tests/test_generics.rs b/vendor/thiserror/tests/test_generics.rs
new file mode 100644
index 0000000..c94d95e
--- /dev/null
+++ b/vendor/thiserror/tests/test_generics.rs
@@ -0,0 +1,161 @@
+#![allow(clippy::needless_late_init, clippy::uninlined_format_args)]
+
+use std::fmt::{self, Debug, Display};
+use thiserror::Error;
+
+pub struct NoFormat;
+
+#[derive(Debug)]
+pub struct DebugOnly;
+
+pub struct DisplayOnly;
+
+impl Display for DisplayOnly {
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ f.write_str("display only")
+ }
+}
+
+#[derive(Debug)]
+pub struct DebugAndDisplay;
+
+impl Display for DebugAndDisplay {
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ f.write_str("debug and display")
+ }
+}
+
+// Should expand to:
+//
+// impl<E> Display for EnumDebugField<E>
+// where
+// E: Debug;
+//
+// impl<E> Error for EnumDebugField<E>
+// where
+// Self: Debug + Display;
+//
+#[derive(Error, Debug)]
+pub enum EnumDebugGeneric<E> {
+ #[error("{0:?}")]
+ FatalError(E),
+}
+
+// Should expand to:
+//
+// impl<E> Display for EnumFromGeneric<E>;
+//
+// impl<E> Error for EnumFromGeneric<E>
+// where
+// EnumDebugGeneric<E>: Error + 'static,
+// Self: Debug + Display;
+//
+#[derive(Error, Debug)]
+pub enum EnumFromGeneric<E> {
+ #[error("enum from generic")]
+ Source(#[from] EnumDebugGeneric<E>),
+}
+
+// Should expand to:
+//
+// impl<HasDisplay, HasDebug, HasNeither> Display
+// for EnumCompound<HasDisplay, HasDebug, HasNeither>
+// where
+// HasDisplay: Display,
+// HasDebug: Debug;
+//
+// impl<HasDisplay, HasDebug, HasNeither> Error
+// for EnumCompound<HasDisplay, HasDebug, HasNeither>
+// where
+// Self: Debug + Display;
+//
+#[derive(Error)]
+pub enum EnumCompound<HasDisplay, HasDebug, HasNeither> {
+ #[error("{0} {1:?}")]
+ DisplayDebug(HasDisplay, HasDebug),
+ #[error("{0}")]
+ Display(HasDisplay, HasNeither),
+ #[error("{1:?}")]
+ Debug(HasNeither, HasDebug),
+}
+
+impl<HasDisplay, HasDebug, HasNeither> Debug for EnumCompound<HasDisplay, HasDebug, HasNeither> {
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ f.write_str("EnumCompound")
+ }
+}
+
+#[test]
+fn test_display_enum_compound() {
+ let mut instance: EnumCompound<DisplayOnly, DebugOnly, NoFormat>;
+
+ instance = EnumCompound::DisplayDebug(DisplayOnly, DebugOnly);
+ assert_eq!(format!("{}", instance), "display only DebugOnly");
+
+ instance = EnumCompound::Display(DisplayOnly, NoFormat);
+ assert_eq!(format!("{}", instance), "display only");
+
+ instance = EnumCompound::Debug(NoFormat, DebugOnly);
+ assert_eq!(format!("{}", instance), "DebugOnly");
+}
+
+// Should expand to:
+//
+// impl<E> Display for EnumTransparentGeneric<E>
+// where
+// E: Display;
+//
+// impl<E> Error for EnumTransparentGeneric<E>
+// where
+// E: Error,
+// Self: Debug + Display;
+//
+#[derive(Error, Debug)]
+pub enum EnumTransparentGeneric<E> {
+ #[error(transparent)]
+ Other(E),
+}
+
+// Should expand to:
+//
+// impl<E> Display for StructDebugGeneric<E>
+// where
+// E: Debug;
+//
+// impl<E> Error for StructDebugGeneric<E>
+// where
+// Self: Debug + Display;
+//
+#[derive(Error, Debug)]
+#[error("{underlying:?}")]
+pub struct StructDebugGeneric<E> {
+ pub underlying: E,
+}
+
+// Should expand to:
+//
+// impl<E> Error for StructFromGeneric<E>
+// where
+// StructDebugGeneric<E>: Error + 'static,
+// Self: Debug + Display;
+//
+#[derive(Error, Debug)]
+pub struct StructFromGeneric<E> {
+ #[from]
+ pub source: StructDebugGeneric<E>,
+}
+
+// Should expand to:
+//
+// impl<E> Display for StructTransparentGeneric<E>
+// where
+// E: Display;
+//
+// impl<E> Error for StructTransparentGeneric<E>
+// where
+// E: Error,
+// Self: Debug + Display;
+//
+#[derive(Error, Debug)]
+#[error(transparent)]
+pub struct StructTransparentGeneric<E>(E);