/*
* Copyright 2000-2015 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.diff.comparison.iterables;
import com.intellij.util.diff.Diff;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
@SuppressWarnings("ConstantConditions")
class DiffChangeDiffIterable extends ChangeDiffIterableBase {
@Nullable private final Diff.Change myChange;
public DiffChangeDiffIterable(@Nullable Diff.Change change, int length1, int length2) {
super(length1, length2);
myChange = change;
}
@NotNull
@Override
protected ChangeIterable createChangeIterable() {
return new DiffChangeChangeIterable(myChange);
}
private static class DiffChangeChangeIterable implements ChangeIterable {
@Nullable private Diff.Change myChange;
public DiffChangeChangeIterable(@Nullable Diff.Change change) {
myChange = change;
}
@Override
public boolean valid() {
return myChange != null;
}
@Override
public void next() {
myChange = myChange.link;
}
@Override
public int getStart1() {
return myChange.line0;
}
@Override
public int getStart2() {
return myChange.line1;
}
@Override
public int getEnd1() {
return myChange.line0 + myChange.deleted;
}
@Override
public int getEnd2() {
return myChange.line1 + myChange.inserted;
}
}
}