dirstate-entry: add a `size` property

dirstate-entry: add a `size` property

This is clearer than "tuple" indexing.

Differential Revision: https://phab.mercurial-scm.org/D10980

--- a/mercurial/cext/parsers.c	Sun Jul 04 02:33:21 2021 +0200
+++ b/mercurial/cext/parsers.c	Sun Jul 04 02:34:24 2021 +0200
@@ -174,6 +174,11 @@
 	return PyInt_FromLong(self->mode);
 };
 
+static PyObject *dirstatetuple_get_size(dirstateTupleObject *self)
+{
+	return PyInt_FromLong(self->size);
+};
+
 static PyObject *dirstatetuple_get_state(dirstateTupleObject *self)
 {
 	return PyBytes_FromStringAndSize(&self->state, 1);
@@ -244,6 +249,7 @@
 
 static PyGetSetDef dirstatetuple_getset[] = {
     {"mode", (getter)dirstatetuple_get_mode, NULL, "mode", NULL},
+    {"size", (getter)dirstatetuple_get_size, NULL, "size", NULL},
     {"state", (getter)dirstatetuple_get_state, NULL, "state", NULL},
     {"tracked", (getter)dirstatetuple_get_tracked, NULL, "tracked", NULL},
     {"added", (getter)dirstatetuple_get_added, NULL, "added", NULL},

--- a/mercurial/dirstate.py	Sun Jul 04 02:33:21 2021 +0200
+++ b/mercurial/dirstate.py	Sun Jul 04 02:34:24 2021 +0200
@@ -1308,7 +1308,7 @@
             # tuple members one by one.
             t = dget(fn)
             mode = t.mode
-            size = t[2]
+            size = t.size
             time = t[3]
 
             if not st and t.tracked:

--- a/mercurial/pure/parsers.py	Sun Jul 04 02:33:21 2021 +0200
+++ b/mercurial/pure/parsers.py	Sun Jul 04 02:34:24 2021 +0200
@@ -76,6 +76,10 @@
         return self._mode
 
     @property
+    def size(self):
+        return self._size
+
+    @property
     def state(self):
         """
         States are: