/*
* Copyright 2003-2016 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 jetbrains.mps.lang.smodel;
import gnu.trove.TLongIntHashMap;
/**
* Facility to build index of concepts from the same language
* @author Artem Tikhomirov
*/
public final class LanguageConceptIndexBuilder {
private final TLongIntHashMap myIndex = new TLongIntHashMap();
// XXX pass these into LCI and assert/check concepts coming into its index() methods are from the language
private final long myLangHighBits;
private final long myLangLowBits;
// prevent from modification of exposed map instance (don't want to copy map on seal())
private boolean myIsSealed = false;
public LanguageConceptIndexBuilder() {
myLangHighBits = myLangLowBits = -1;
}
public LanguageConceptIndexBuilder(long langHighBits, long langLowBits) {
myLangHighBits = langHighBits;
myLangLowBits = langLowBits;
}
public LanguageConceptIndexBuilder put(long conceptId, int index) {
assert !myIsSealed;
myIndex.put(conceptId, index);
return this;
}
public LanguageConceptIndex seal() {
assert !myIsSealed;
myIsSealed = true;
myIndex.compact();
return new LanguageConceptIndex(myIndex);
}
}