diff mercurial/manifest.py @ 47012:d55b71393907

node: replace nullid and friends with nodeconstants class

The introduction of 256bit hashes require changes to nullid and other
constant magic values. Start pushing them down from repository and
revlog where sensible.

Differential Revision: https://phab.mercurial-scm.org/D9465

--- a/mercurial/manifest.py	Mon Apr 19 20:38:52 2021 -0400
+++ b/mercurial/manifest.py	Mon Mar 29 01:52:06 2021 +0200
@@ -16,7 +16,6 @@
 from .node import (
     bin,
     hex,
-    nullid,
     nullrev,
 )
 from .pycompat import getattr
@@ -795,7 +794,7 @@
     def __init__(self, nodeconstants, dir=b'', text=b''):
         self._dir = dir
         self.nodeconstants = nodeconstants
-        self._node = nullid
+        self._node = self.nodeconstants.nullid
         self._loadfunc = _noop
         self._copyfunc = _noop
         self._dirty = False
@@ -1391,7 +1390,7 @@
                 continue
             subp1 = getnode(m1, d)
             subp2 = getnode(m2, d)
-            if subp1 == nullid:
+            if subp1 == self.nodeconstants.nullid:
                 subp1, subp2 = subp2, subp1
             writesubtree(subm, subp1, subp2, match)
 
@@ -1994,7 +1993,7 @@
             else:
                 m = manifestctx(self, node)
 
-        if node != nullid:
+        if node != self.nodeconstants.nullid:
             mancache = self._dirmancache.get(tree)
             if not mancache:
                 mancache = util.lrucachedict(self._cachesize)
@@ -2082,7 +2081,7 @@
 
     def read(self):
         if self._data is None:
-            if self._node == nullid:
+            if self._node == self._manifestlog.nodeconstants.nullid:
                 self._data = manifestdict()
             else:
                 store = self._storage()
@@ -2188,7 +2187,7 @@
     def read(self):
         if self._data is None:
             store = self._storage()
-            if self._node == nullid:
+            if self._node == self._manifestlog.nodeconstants.nullid:
                 self._data = treemanifest(self._manifestlog.nodeconstants)
             # TODO accessing non-public API
             elif store._treeondisk: