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LUCENE-5152: make assert less costly 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1514520 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael McCandless 2013-08-15 22:42:54 +00:00
parent f02170a048
commit 51da0631c0
1 changed files with 4 additions and 1 deletions
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5
lucene/core/src/java/org/apache/lucene/util/fst/FST.java
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@ -1140,7 +1140,6 @@ public final class FST<T> {
/** Finds an arc leaving the incoming arc, replacing the arc in place.
* This returns null if the arc was not found, else the incoming arc. */
public Arc<T> findTargetArc(int labelToMatch, Arc<T> follow, Arc<T> arc, BytesReader in) throws IOException {
assert assertRootArcs();
if (labelToMatch == END_LABEL) {
if (follow.isFinal()) {
@ -1162,6 +1161,10 @@ public final class FST<T> {
// Short-circuit if this arc is in the root arc cache:
if (follow.target == startNode && labelToMatch < cachedRootArcs.length) {
// LUCENE-5152: detect tricky cases where caller
// modified previously returned cached root-arcs:
assert assertRootArcs();
final Arc<T> result = cachedRootArcs[labelToMatch];
if (result == null) {
return null;