diff --git a/crates/toml_edit/src/parser/document.rs b/crates/toml_edit/src/parser/document.rs
index d591e47e..2813d176 100644
--- a/crates/toml_edit/src/parser/document.rs
+++ b/crates/toml_edit/src/parser/document.rs
@@ -27,7 +27,7 @@ pub(crate) fn document(s: &[u8]) -> Result<Document, TomlError> {
     // Remove BOM if present
     let s = s.strip_prefix(b"\xEF\xBB\xBF").unwrap_or(s);
 
-    let mut parser = RefCell::new(ParseState::default());
+    let parser = RefCell::new(ParseState::default());
     let input = Stream::new(s);
 
     let parsed = parse_ws(&parser)
@@ -56,13 +56,11 @@ pub(crate) fn document(s: &[u8]) -> Result<Document, TomlError> {
             s,
         )),
         Ok(..) => {
-            parser
-                .get_mut()
-                .finalize_table()
+            let doc = parser
+                .into_inner()
+                .into_document()
                 .map_err(|e| TomlError::custom(e.to_string()))?;
-            let trailing = parser.borrow().trailing.as_str().into();
-            parser.get_mut().document.trailing = trailing;
-            Ok(parser.into_inner().document)
+            Ok(doc)
         }
         Err(e) => Err(TomlError::new(e, s)),
     }
diff --git a/crates/toml_edit/src/parser/state.rs b/crates/toml_edit/src/parser/state.rs
index ab05692c..def0e151 100644
--- a/crates/toml_edit/src/parser/state.rs
+++ b/crates/toml_edit/src/parser/state.rs
@@ -5,15 +5,22 @@ use crate::table::TableKeyValue;
 use crate::{ArrayOfTables, Document, InternalString, Item, Table};
 
 pub(crate) struct ParseState {
-    pub(crate) document: Document,
-    pub(crate) trailing: String,
-    pub(crate) current_table_position: usize,
-    pub(crate) current_table: Table,
-    pub(crate) current_is_array: bool,
-    pub(crate) current_table_path: Vec<Key>,
+    document: Document,
+    trailing: String,
+    current_table_position: usize,
+    current_table: Table,
+    current_is_array: bool,
+    current_table_path: Vec<Key>,
 }
 
 impl ParseState {
+    pub(crate) fn into_document(mut self) -> Result<Document, CustomError> {
+        self.finalize_table()?;
+        let trailing = self.trailing.as_str().into();
+        self.document.trailing = trailing;
+        Ok(self.document)
+    }
+
     pub(crate) fn on_ws(&mut self, w: &str) {
         self.trailing.push_str(w);
     }