1 files changed, 124 insertions, 0 deletions
diff --git a/vendor/derive_more/tests/deref_mut.rs b/vendor/derive_more/tests/deref_mut.rs
new file mode 100644
index 000000000..51a95e4f2
--- /dev/null
+++ b/vendor/derive_more/tests/deref_mut.rs
@@ -0,0 +1,124 @@
+#![allow(dead_code, unused_imports)]
+#[macro_use]
+extern crate derive_more;
+
+#[derive(DerefMut)]
+#[deref_mut(forward)]
+struct MyBoxedInt(Box<i32>);
+// Deref implementation is needed for DerefMut
+impl ::core::ops::Deref for MyBoxedInt {
+    type Target = <Box<i32> as ::core::ops::Deref>::Target;
+    #[inline]
+    fn deref(&self) -> &Self::Target {
+        <Box<i32> as ::core::ops::Deref>::deref(&self.0)
+    }
+}
+
+#[derive(DerefMut)]
+struct NumRef<'a> {
+    #[deref_mut(forward)]
+    num: &'a mut i32,
+}
+// Deref implementation is needed for DerefMut
+impl<'a> ::core::ops::Deref for NumRef<'a> {
+    type Target = <&'a mut i32 as ::core::ops::Deref>::Target;
+    #[inline]
+    fn deref(&self) -> &Self::Target {
+        <&'a mut i32 as ::core::ops::Deref>::deref(&self.num)
+    }
+}
+
+#[derive(DerefMut)]
+#[deref_mut(forward)]
+struct NumRef2<'a> {
+    num: &'a mut i32,
+    #[deref_mut(ignore)]
+    useless: bool,
+}
+
+// Deref implementation is needed for DerefMut
+impl<'a> ::core::ops::Deref for NumRef2<'a> {
+    type Target = <&'a mut i32 as ::core::ops::Deref>::Target;
+    #[inline]
+    fn deref(&self) -> &Self::Target {
+        <&'a mut i32 as ::core::ops::Deref>::deref(&self.num)
+    }
+}
+
+#[derive(DerefMut)]
+struct MyInt(i32);
+
+// Deref implementation is needed for DerefMutToInner
+impl ::core::ops::Deref for MyInt {
+    type Target = i32;
+    #[inline]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+#[derive(DerefMut)]
+struct Point1D {
+    x: i32,
+}
+
+// Deref implementation is needed for DerefMutToInner
+impl ::core::ops::Deref for Point1D {
+    type Target = i32;
+    #[inline]
+    fn deref(&self) -> &Self::Target {
+        &self.x
+    }
+}
+
+#[derive(DerefMut)]
+struct CoolVec {
+    cool: bool,
+    #[deref_mut]
+    vec: Vec<i32>,
+}
+impl ::core::ops::Deref for CoolVec {
+    type Target = Vec<i32>;
+    #[inline]
+    fn deref(&self) -> &Self::Target {
+        &self.vec
+    }
+}
+
+#[derive(DerefMut)]
+struct GenericVec<T>(Vec<T>);
+
+impl<T> ::core::ops::Deref for GenericVec<T> {
+    type Target = Vec<T>;
+    #[inline]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+#[test]
+fn deref_mut_generic() {
+    let mut gv = GenericVec::<i32>(vec![42]);
+    assert!(gv.get_mut(0).is_some());
+}
+
+#[derive(DerefMut)]
+struct GenericBox<T>(#[deref_mut(forward)] Box<T>);
+
+impl<T> ::core::ops::Deref for GenericBox<T>
+where
+    Box<T>: ::core::ops::Deref,
+{
+    type Target = <Box<T> as ::core::ops::Deref>::Target;
+    #[inline]
+    fn deref(&self) -> &Self::Target {
+        <Box<T> as ::core::ops::Deref>::deref(&self.0)
+    }
+}
+
+#[test]
+fn deref_mut_generic_forward() {
+    let mut boxed = GenericBox(Box::new(1i32));
+    *boxed = 3;
+    assert_eq!(*boxed, 3i32);
+}