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Unified Diff: third_party/google-endpoints/libpasteurize/fixes/fix_division.py

Issue 2666783008: Add google-endpoints to third_party/. (Closed)
Patch Set: Created 3 years, 11 months ago
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Index: third_party/google-endpoints/libpasteurize/fixes/fix_division.py
diff --git a/third_party/google-endpoints/libpasteurize/fixes/fix_division.py b/third_party/google-endpoints/libpasteurize/fixes/fix_division.py
new file mode 100644
index 0000000000000000000000000000000000000000..6a048710f403ea0042b8e85f00b9664e23cb013e
--- /dev/null
+++ b/third_party/google-endpoints/libpasteurize/fixes/fix_division.py
@@ -0,0 +1,28 @@
+u"""
+Fixer for division: from __future__ import division if needed
+"""
+
+from lib2to3 import fixer_base
+from libfuturize.fixer_util import token, future_import
+
+def match_division(node):
+ u"""
+ __future__.division redefines the meaning of a single slash for division,
+ so we match that and only that.
+ """
+ slash = token.SLASH
+ return node.type == slash and not node.next_sibling.type == slash and \
+ not node.prev_sibling.type == slash
+
+class FixDivision(fixer_base.BaseFix):
+ run_order = 4 # this seems to be ignored?
+
+ def match(self, node):
+ u"""
+ Since the tree needs to be fixed once and only once if and only if it
+ matches, then we can start discarding matches after we make the first.
+ """
+ return match_division(node)
+
+ def transform(self, node, results):
+ future_import(u"division", node)

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