1 files changed, 52 insertions, 0 deletions
diff --git a/vendor/git2/src/oid_array.rs b/vendor/git2/src/oid_array.rs
new file mode 100644
index 000000000..0d87ce995
--- /dev/null
+++ b/vendor/git2/src/oid_array.rs
@@ -0,0 +1,52 @@
+//! Bindings to libgit2's raw `git_oidarray` type
+
+use std::ops::Deref;
+
+use crate::oid::Oid;
+use crate::raw;
+use crate::util::Binding;
+use std::mem;
+use std::slice;
+
+/// An oid array structure used by libgit2
+///
+/// Some APIs return arrays of OIDs which originate from libgit2. This
+/// wrapper type behaves a little like `Vec<&Oid>` but does so without copying
+/// the underlying Oids until necessary.
+pub struct OidArray {
+    raw: raw::git_oidarray,
+}
+
+impl Deref for OidArray {
+    type Target = [Oid];
+
+    fn deref(&self) -> &[Oid] {
+        unsafe {
+            debug_assert_eq!(mem::size_of::<Oid>(), mem::size_of_val(&*self.raw.ids));
+
+            slice::from_raw_parts(self.raw.ids as *const Oid, self.raw.count as usize)
+        }
+    }
+}
+
+impl Binding for OidArray {
+    type Raw = raw::git_oidarray;
+    unsafe fn from_raw(raw: raw::git_oidarray) -> OidArray {
+        OidArray { raw }
+    }
+    fn raw(&self) -> raw::git_oidarray {
+        self.raw
+    }
+}
+
+impl<'repo> std::fmt::Debug for OidArray {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        f.debug_tuple("OidArray").field(&self.deref()).finish()
+    }
+}
+
+impl Drop for OidArray {
+    fn drop(&mut self) {
+        unsafe { raw::git_oidarray_free(&mut self.raw) }
+    }
+}