Moved InternalRecord into document module.

src/document/record.rs

@@ -1,10 +1,42 @@
 use crate::{
     action::Field,
-    message::wrapper::{InternalRecord, Oid},
+    message::wrapper::Oid,
     mtterror::{ErrorID, MTTError},
     name::{Name, NameType, Names},
 };
 use std::collections::HashMap;
+use uuid::Uuid;
+
+#[derive(Clone, Debug)]
+pub struct InternalRecord {
+    data: HashMap<Uuid, Field>,
+}
+
+impl InternalRecord {
+    pub fn new() -> Self {
+        Self {
+            data: HashMap::new(),
+        }
+    }
+
+    pub fn insert<F>(&mut self, id: Uuid, data: F) -> Field
+    where
+        F: Into<Field>,
+    {
+        match self.data.insert(id, data.into()) {
+            Some(data) => data.clone(),
+            None => Field::None,
+        }
+    }
+
+    pub fn get(&self, id: &Uuid) -> Option<&Field> {
+        self.data.get(id)
+    }
+
+    pub fn is_empty(&self) -> bool {
+        self.data.is_empty()
+    }
+}
 
 #[derive(Clone, Debug)]
 pub struct InternalRecords {