/*
* Copyright 2012-2014 Sergey Ignatov
*
* 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.intellij.erlang.rename;
import com.intellij.psi.PsiElement;
import com.intellij.refactoring.listeners.RefactoringElementListener;
import com.intellij.refactoring.rename.RenamePsiElementProcessor;
import com.intellij.usageView.UsageInfo;
import com.intellij.util.IncorrectOperationException;
import org.intellij.erlang.psi.ErlangQVar;
import org.intellij.erlang.psi.impl.ErlangElementFactory;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
public class ErlangRenameVariableProcessor extends RenamePsiElementProcessor {
@Override
public boolean canProcessElement(@NotNull PsiElement element) {
return element instanceof ErlangQVar;
}
@Override
public void renameElement(PsiElement element,
String newName,
UsageInfo[] usages,
@Nullable RefactoringElementListener listener) throws IncorrectOperationException {
boolean variableNameIsInvalid;
try {
PsiElement qVarFromText = ErlangElementFactory.createQVarFromText(element.getProject(), newName);
//noinspection ConstantConditions
variableNameIsInvalid = qVarFromText == null;
} catch (Exception any) {
variableNameIsInvalid = true;
}
if (variableNameIsInvalid) {
throw new IncorrectOperationException("Invalid variable name");
}
super.renameElement(element, newName, usages, listener);
}
}