org.jetbrains.plugins.groovy.codeInspection.dataflow.WritesCounterSemilattice Maven / Gradle / Ivy
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A packaging of the IntelliJ Community Edition groovy-psi library.
This is release number 1 of trunk branch 142.
The newest version!
/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.plugins.groovy.codeInspection.dataflow;
import gnu.trove.TObjectIntHashMap;
import gnu.trove.TObjectIntProcedure;
import org.jetbrains.plugins.groovy.lang.psi.dataFlow.Semilattice;
import java.util.ArrayList;
public class WritesCounterSemilattice implements Semilattice> {
private static void merge(final TObjectIntHashMap to, TObjectIntHashMap from) {
from.forEachEntry(new TObjectIntProcedure() {
@Override
public boolean execute(T key, int value) {
to.put(
key,
to.containsKey(key) ? Math.max(to.get(key), value) : value
);
return true;
}
});
}
@Override
public TObjectIntHashMap join(ArrayList> ins) {
final TObjectIntHashMap result = new TObjectIntHashMap();
for (TObjectIntHashMap i : ins) {
merge(result, i);
}
return result;
}
@Override
public boolean eq(TObjectIntHashMap e1, TObjectIntHashMap e2) {
return e1.equals(e2);
}
}