Revision: 17633
Author: [email protected]
Date: Tue Nov 12 09:23:37 2013 UTC
Log: Experimental parser: more assertions
[email protected]
BUG=
Review URL: https://codereview.chromium.org/68173004
http://code.google.com/p/v8/source/detail?r=17633
Modified:
/branches/experimental/parser/tools/lexer_generator/transition_keys.py
=======================================
--- /branches/experimental/parser/tools/lexer_generator/transition_keys.py
Tue Nov 12 07:12:31 2013 UTC
+++ /branches/experimental/parser/tools/lexer_generator/transition_keys.py
Tue Nov 12 09:23:37 2013 UTC
@@ -166,13 +166,19 @@
def matches_key(self, key):
assert isinstance(key, self.__class__)
- assert key != TransitionKey.epsilon()
+ assert key != TransitionKey.epsilon() and not key.__is_unique()
assert len(key.__ranges) == 1
subkey = key.__ranges[0]
+ matches = False
for k in self.__ranges:
- if k[0] <= subkey[0] and k[1] >= subkey[1]: return True
- # TODO assert disjoint
- return False
+ if k[0] <= subkey[0]:
+ assert subkey[1] <= k[1] or subkey[0] > k[1]
+ if subkey[0] < k[0]:
+ assert subkey[1] < k[0]
+ if k[0] <= subkey[0] and k[1] >= subkey[1]:
+ assert not matches
+ matches = True
+ return matches
def __hash__(self):
if self.__cached_hash == None:
--
--
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