diff mercurial/pure/parsers.py @ 43534:0c659fc20207

index: add a `has_node` method (API)

The new `index.has_node(node)` is to be preferred over:

    `node in index.nodemap`.

This get us closer to be able to remove the `nodemap` attribute of the index.

Differential Revision: https://phab.mercurial-scm.org/D7322

--- a/mercurial/pure/parsers.py	Sat Nov 09 05:54:22 2019 +0100
+++ b/mercurial/pure/parsers.py	Sun Nov 03 00:01:09 2019 +0100
@@ -55,6 +55,10 @@
             nodemap[n] = r
         return nodemap
 
+    def has_node(self, node):
+        """return True if the node exist in the index"""
+        return node in self.nodemap
+
     def _stripnodes(self, start):
         if 'nodemap' in vars(self):
             for r in range(start, len(self)):