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Unified Diff: third_party/google-endpoints/libpasteurize/fixes/fix_raise_.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_raise_.py
diff --git a/third_party/google-endpoints/libpasteurize/fixes/fix_raise_.py b/third_party/google-endpoints/libpasteurize/fixes/fix_raise_.py
new file mode 100644
index 0000000000000000000000000000000000000000..0f020c454f5bd07fb0732b4dd558ad021a37d437
--- /dev/null
+++ b/third_party/google-endpoints/libpasteurize/fixes/fix_raise_.py
@@ -0,0 +1,35 @@
+u"""Fixer for
+ raise E(V).with_traceback(T)
+ to:
+ from future.utils import raise_
+ ...
+ raise_(E, V, T)
+
+TODO: FIXME!!
+
+"""
+
+from lib2to3 import fixer_base
+from lib2to3.fixer_util import Comma, Node, Leaf, token, syms
+
+class FixRaise(fixer_base.BaseFix):
+
+ PATTERN = u"""
+ raise_stmt< 'raise' (power< name=any [trailer< '(' val=any* ')' >]
+ [trailer< '.' 'with_traceback' > trailer< '(' trc=any ')' >] > | any) ['from' chain=any] >"""
+
+ def transform(self, node, results):
+ FIXME
+ name, val, trc = (results.get(u"name"), results.get(u"val"), results.get(u"trc"))
+ chain = results.get(u"chain")
+ if chain is not None:
+ self.warning(node, u"explicit exception chaining is not supported in Python 2")
+ chain.prev_sibling.remove()
+ chain.remove()
+ if trc is not None:
+ val = val[0] if val else Leaf(token.NAME, u"None")
+ val.prefix = trc.prefix = u" "
+ kids = [Leaf(token.NAME, u"raise"), name.clone(), Comma(),
+ val.clone(), Comma(), trc.clone()]
+ raise_stmt = Node(syms.raise_stmt, kids)
+ node.replace(raise_stmt)

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