glawson0 commented on a change in pull request #157:
URL: https://github.com/apache/lucene/pull/157#discussion_r643674911
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File path:
lucene/analysis/common/src/java/org/apache/lucene/analysis/core/FlattenGraphFilter.java
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@@ -193,14 +194,25 @@ private boolean releaseBufferedToken() {
}
if (inputNode.tokens.size() == 0) {
assert inputNode.nextOut == 0;
- assert output.nextOut == 0;
// Hole dest nodes should never be merged since 1) we always
// assign them to a new output position, and 2) since they never
// have arriving tokens they cannot be pushed:
- assert output.inputNodes.size() == 1 : output.inputNodes.size();
+ // skip hole sources, but don't free until every input is checked
+ if (output.inputNodes.size() > 1) {
+ output.inputNodes.remove(output.nextOut);
+ if (output.nextOut < output.inputNodes.size()) {
+ continue;
+ }
+ }
+
outputFrom++;
- inputNodes.freeBefore(output.inputNodes.get(0));
+ int freeBefore = Collections.min(output.inputNodes);
+ assert outputNodes.get(outputFrom).inputNodes.stream().filter(n ->
freeBefore < n).count()
Review comment:
You're correct. The test as written here just checks if at least one
node is ok instead of all nodes, then prints the wrong message.
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