From: Zac Medico <zmedico@gentoo.org>
Date: Mon, 5 May 2008 21:06:30 +0000 (-0000)
Subject: Cache results for Task.__hash__() calls.
X-Git-Tag: v2.2_pre7~78
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=c94e1dd32929829dcd8d05a7040ce95d669957bb;p=portage.git

Cache results for Task.__hash__() calls.

svn path=/main/trunk/; revision=10210
---

diff --git a/pym/_emerge/__init__.py b/pym/_emerge/__init__.py
index 378b4e21d..1baaff7f8 100644
--- a/pym/_emerge/__init__.py
+++ b/pym/_emerge/__init__.py
@@ -1220,7 +1220,7 @@ def show_masked_packages(masked_packages):
 	return have_eapi_mask
 
 class Task(SlotObject):
-	__slots__ = ("_hash_key",)
+	__slots__ = ("_hash_key", "_hash_value")
 
 	def _get_hash_key(self):
 		hash_key = getattr(self, "_hash_key", None)
@@ -1235,7 +1235,10 @@ class Task(SlotObject):
 		return self._get_hash_key() != other
 
 	def __hash__(self):
-		return hash(self._get_hash_key())
+		hash_value = getattr(self, "_hash_value", None)
+		if hash_value is None:
+			self._hash_value = hash(self._get_hash_key())
+		return self._hash_value
 
 	def __len__(self):
 		return len(self._get_hash_key())