platform/lang-impl/src/com/intellij/refactoring/changeSignature/LanguageChangeSignatureDetector.java

/*
 * Copyright 2000-2010 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.refactoring.changeSignature;

import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

/**
 * User: anna
 * Date: Sep 6, 2010
 */
public interface LanguageChangeSignatureDetector {
  String MOVE_PARAMETER = "Parameter Move";

  @Nullable ChangeInfo createInitialChangeInfo(final @NotNull PsiElement element);
  @Nullable String extractSignature(PsiElement child, @NotNull ChangeInfo initialChangeInfo);
  boolean ignoreChanges(PsiElement element);
  @Nullable ChangeInfo createNextChangeInfo(String signature, @NotNull ChangeInfo currentInfo, String initialName);

  boolean performChange(ChangeInfo changeInfo, ChangeInfo initialChangeInfo, @NotNull String oldText, boolean silently);

  boolean isChangeSignatureAvailableOnElement(PsiElement element, ChangeInfo currentInfo);
  @Nullable TextRange getHighlightingRange(ChangeInfo changeInfo);


  boolean isMoveParameterAvailable(PsiElement parameter, boolean left);
  void moveParameter(PsiElement parameter, Editor editor, boolean left);
}