From 337eba4e844df1a0ab17037e0eeb6e233570f19a Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Wed, 19 Feb 2014 15:01:26 -0600
Subject: [PATCH] Move PersistentHashWalkMapper to pymbolic
---
loopy/tools.py | 18 +++++-------------
1 file changed, 5 insertions(+), 13 deletions(-)
diff --git a/loopy/tools.py b/loopy/tools.py
index 62b893edf..f894379d2 100644
--- a/loopy/tools.py
+++ b/loopy/tools.py
@@ -24,7 +24,9 @@ THE SOFTWARE.
import numpy as np
from pytools.persistent_dict import KeyBuilder as KeyBuilderBase
-from loopy.symbolic import WalkMapper
+from loopy.symbolic import WalkMapper as LoopyWalkMapper
+from pymbolic.mapper.persistent_hash import (
+ PersistentHashWalkMapper as PersistentHashWalkMapperBase)
def is_integer(obj):
@@ -33,7 +35,7 @@ def is_integer(obj):
# {{{ custom KeyBuilder subclass
-class PersistentHashWalkMapper(WalkMapper):
+class PersistentHashWalkMapper(LoopyWalkMapper, PersistentHashWalkMapperBase):
"""A subclass of :class:`loopy.symbolic.WalkMapper` for constructing
persistent hash keys for use with
:class:`pytools.persistent_dict.PersistentDict`.
@@ -41,17 +43,7 @@ class PersistentHashWalkMapper(WalkMapper):
See also :meth:`LoopyKeyBuilder.update_for_pymbolic_expression`.
"""
- def __init__(self, key_hash):
- self.key_hash = key_hash
-
- def visit(self, expr):
- self.key_hash.update(type(expr).__name__.encode("utf8"))
-
- def map_variable(self, expr):
- self.key_hash.update(expr.name.encode("utf8"))
-
- def map_constant(self, expr):
- self.key_hash.update(repr(expr).encode("utf8"))
+ # <empty implementation>
class LoopyKeyBuilder(KeyBuilderBase):
--
GitLab