--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rust/hg-cpython/src/dirstate/non_normal_entries.rs	Mon Feb 10 21:54:12 2020 +0100
@@ -0,0 +1,52 @@
+// non_normal_other_parent_entries.rs
+//
+// Copyright 2020 Raphaël Gomès <rgomes@octobus.net>
+//
+// This software may be used and distributed according to the terms of the
+// GNU General Public License version 2 or any later version.
+
+use cpython::{
+    exc::NotImplementedError, CompareOp, ObjectProtocol, PyErr, PyList,
+    PyObject, PyResult, PyString, Python, PythonObject, ToPyObject,
+};
+
+use crate::dirstate::DirstateMap;
+
+py_class!(pub class NonNormalEntries |py| {
+    data dmap: DirstateMap;
+
+    def __contains__(&self, key: PyObject) -> PyResult<bool> {
+        self.dmap(py).non_normal_entries_contains(py, key)
+    }
+    def remove(&self, key: PyObject) -> PyResult<PyObject> {
+        self.dmap(py).non_normal_entries_remove(py, key)
+    }
+    def union(&self, other: PyObject) -> PyResult<PyList> {
+        self.dmap(py).non_normal_entries_union(py, other)
+    }
+    def __richcmp__(&self, other: PyObject, op: CompareOp) -> PyResult<bool> {
+        match op {
+            CompareOp::Eq => self.is_equal_to(py, other),
+            CompareOp::Ne => Ok(!self.is_equal_to(py, other)?),
+            _ => Err(PyErr::new::<NotImplementedError, _>(py, ""))
+        }
+    }
+    def __repr__(&self) -> PyResult<PyString> {
+        self.dmap(py).non_normal_entries_display(py)
+    }
+});
+
+impl NonNormalEntries {
+    pub fn from_inner(py: Python, dm: DirstateMap) -> PyResult<Self> {
+        Self::create_instance(py, dm)
+    }
+
+    fn is_equal_to(&self, py: Python, other: PyObject) -> PyResult<bool> {
+        for item in other.iter(py)? {
+            if !self.dmap(py).non_normal_entries_contains(py, item?)? {
+                return Ok(false);
+            }
+        }
+        Ok(true)
+    }
+}