1 files changed, 56 insertions, 0 deletions
diff --git a/third_party/rust/object/src/read/elf/compression.rs b/third_party/rust/object/src/read/elf/compression.rs
new file mode 100644
index 0000000000..7242dd39c8
--- /dev/null
+++ b/third_party/rust/object/src/read/elf/compression.rs
@@ -0,0 +1,56 @@
+use core::fmt::Debug;
+
+use crate::elf;
+use crate::endian;
+use crate::pod::Pod;
+
+/// A trait for generic access to `CompressionHeader32` and `CompressionHeader64`.
+#[allow(missing_docs)]
+pub trait CompressionHeader: Debug + Pod {
+    type Word: Into<u64>;
+    type Endian: endian::Endian;
+
+    fn ch_type(&self, endian: Self::Endian) -> u32;
+    fn ch_size(&self, endian: Self::Endian) -> Self::Word;
+    fn ch_addralign(&self, endian: Self::Endian) -> Self::Word;
+}
+
+impl<Endian: endian::Endian> CompressionHeader for elf::CompressionHeader32<Endian> {
+    type Word = u32;
+    type Endian = Endian;
+
+    #[inline]
+    fn ch_type(&self, endian: Self::Endian) -> u32 {
+        self.ch_type.get(endian)
+    }
+
+    #[inline]
+    fn ch_size(&self, endian: Self::Endian) -> Self::Word {
+        self.ch_size.get(endian)
+    }
+
+    #[inline]
+    fn ch_addralign(&self, endian: Self::Endian) -> Self::Word {
+        self.ch_addralign.get(endian)
+    }
+}
+
+impl<Endian: endian::Endian> CompressionHeader for elf::CompressionHeader64<Endian> {
+    type Word = u64;
+    type Endian = Endian;
+
+    #[inline]
+    fn ch_type(&self, endian: Self::Endian) -> u32 {
+        self.ch_type.get(endian)
+    }
+
+    #[inline]
+    fn ch_size(&self, endian: Self::Endian) -> Self::Word {
+        self.ch_size.get(endian)
+    }
+
+    #[inline]
+    fn ch_addralign(&self, endian: Self::Endian) -> Self::Word {
+        self.ch_addralign.get(endian)
+    }
+}