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/*
* 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 com.intellij.patterns;
import com.intellij.util.ProcessingContext;
import com.intellij.util.SmartList;
import org.jetbrains.annotations.Nullable;
import java.util.Collections;
import java.util.List;
/**
* @author peter
*/
@SuppressWarnings("ForLoopReplaceableByForEach")
public class ElementPatternCondition<T> {
private final InitialPatternCondition<T> myInitialCondition;
private final List<PatternCondition<? super T>> myConditions;
public ElementPatternCondition(final InitialPatternCondition<T> startCondition) {
myInitialCondition = startCondition;
myConditions = Collections.emptyList();
}
protected ElementPatternCondition(final ElementPatternCondition<T> original,
final PatternCondition<? super T> condition) {
myInitialCondition = original.getInitialCondition();
myConditions = new SmartList<PatternCondition<? super T>>(original.getConditions());
myConditions.add(condition);
}
public boolean accepts(@Nullable Object o, final ProcessingContext context) {
if (!myInitialCondition.accepts(o, context)) return false;
final int listSize = myConditions.size();
for (int i = 0; i < listSize; i++) {
if (!myConditions.get(i).accepts((T)o, context)) return false;
}
return true;
}
public final String toString() {
StringBuilder builder = new StringBuilder();
append(builder, "");
return builder.toString();
}
public void append(StringBuilder builder, String indent) {
myInitialCondition.append(builder, indent);
final int conditionSize = myConditions.size();
for (int i = 0; i < conditionSize; ++i) { // for each is slower
final PatternCondition<? super T> condition = myConditions.get(i);
condition.append(builder.append(".\n").append(indent), indent);
}
}
public List<PatternCondition<? super T>> getConditions() {
return myConditions;
}
public InitialPatternCondition<T> getInitialCondition() {
return myInitialCondition;
}
public ElementPatternCondition<T> append(PatternCondition<? super T> condition) {
return new ElementPatternCondition<T>(this, condition);
}
}
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