1 files changed, 97 insertions, 0 deletions
diff --git a/third_party/rust/plist/src/uid.rs b/third_party/rust/plist/src/uid.rs
new file mode 100644
index 0000000000..f2e107993a
--- /dev/null
+++ b/third_party/rust/plist/src/uid.rs
@@ -0,0 +1,97 @@
+use std::fmt;
+
+/// A plist `uid` value. These are found exclusively in plists created by `NSKeyedArchiver`.
+#[derive(Clone, Copy, Eq, Hash, PartialEq)]
+pub struct Uid {
+    value: u64,
+}
+
+impl Uid {
+    /// Creates a new `Uid` containing the given value.
+    pub fn new(value: u64) -> Uid {
+        Uid { value }
+    }
+
+    /// Returns the value as a `u64`.
+    pub fn get(self) -> u64 {
+        self.value
+    }
+}
+
+impl fmt::Debug for Uid {
+    fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
+        self.value.fmt(f)
+    }
+}
+
+#[cfg(feature = "serde")]
+pub mod serde_impls {
+    use serde::{
+        de::{Deserialize, Deserializer, Error, Visitor},
+        ser::{Serialize, Serializer},
+    };
+    use std::fmt;
+
+    use crate::Uid;
+
+    pub const UID_NEWTYPE_STRUCT_NAME: &str = "PLIST-UID";
+
+    impl Serialize for Uid {
+        fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where
+            S: Serializer,
+        {
+            serializer.serialize_newtype_struct(UID_NEWTYPE_STRUCT_NAME, &self.get())
+        }
+    }
+
+    struct UidNewtypeVisitor;
+
+    impl<'de> Visitor<'de> for UidNewtypeVisitor {
+        type Value = Uid;
+
+        fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+            formatter.write_str("a plist uid")
+        }
+
+        fn visit_u64<E>(self, v: u64) -> Result<Self::Value, E>
+        where
+            E: Error,
+        {
+            UidU64Visitor.visit_u64(v)
+        }
+
+        fn visit_newtype_struct<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
+        where
+            D: Deserializer<'de>,
+        {
+            deserializer.deserialize_u64(UidU64Visitor)
+        }
+    }
+
+    struct UidU64Visitor;
+
+    impl<'de> Visitor<'de> for UidU64Visitor {
+        type Value = Uid;
+
+        fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+            formatter.write_str("a plist uid")
+        }
+
+        fn visit_u64<E>(self, v: u64) -> Result<Self::Value, E>
+        where
+            E: Error,
+        {
+            Ok(Uid::new(v))
+        }
+    }
+
+    impl<'de> Deserialize<'de> for Uid {
+        fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+        where
+            D: Deserializer<'de>,
+        {
+            deserializer.deserialize_newtype_struct(UID_NEWTYPE_STRUCT_NAME, UidNewtypeVisitor)
+        }
+    }
+}