[PATCH 3 of 6 V2] match: test for overflow error in pattern
Boris Feld
boris.feld at octobus.net
Thu Nov 22 22:17:20 UTC 2018
# HG changeset patch
# User Boris Feld <boris.feld at octobus.net>
# Date 1542903365 -3600
# Thu Nov 22 17:16:05 2018 +0100
# Node ID b702174979d09090d5e5081d09755cbb74540ff0
# Parent 7540e746d44775c7098d5fa473be9968317616f1
# EXP-Topic perf-ignore-2
# Available At https://bitbucket.org/octobus/mercurial-devel/
# hg pull https://bitbucket.org/octobus/mercurial-devel/ -r b702174979d0
match: test for overflow error in pattern
If a single pattern is too large to handle, we raise an exception. This case is
now doctested.
diff --git a/mercurial/match.py b/mercurial/match.py
--- a/mercurial/match.py
+++ b/mercurial/match.py
@@ -1188,7 +1188,16 @@ MAXRESIZE = 20000
def _buildregexmatch(kindpats, globsuffix):
"""Build a match function from a list of kinds and kindpats,
- return regexp string and a matcher function."""
+ return regexp string and a matcher function.
+
+ Test too large input
+ >>> _buildregexmatch([
+ ... ('relglob', '?' * MAXRESIZE, '')
+ ... ], '$')
+ Traceback (most recent call last):
+ ...
+ OverflowError
+ """
try:
regex = '(?:%s)' % '|'.join([_regex(k, p, globsuffix)
for (k, p, s) in kindpats])
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