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violet: don't bother swapping holders if unable to trim graph

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This commit is contained in:
Alex Coyte
2017-08-08 11:24:52 +10:00
committed by Matthew Barr
parent 34ed4a6991
commit 72973ccb47
1 changed files with 5 additions and 0 deletions
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5
src/nfagraph/ng_violet.cpp
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@@ -1713,6 +1713,11 @@ void removeRedundantLiteralsFromInfix(const NGHolder &h, RoseInGraph &ig,
continue;
}
if (!delay) {
/* unable to trim graph --> no point swapping to new holder */
continue;
}
assert(isCorrectlyTopped(*h_new));
graphs[right] = make_pair(h_new, delay);
}