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/*
* Copyright 2000-2013 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.jetbrains.python.refactoring.introduce.constant;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.PsiElement;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.util.containers.HashSet;
import com.jetbrains.python.PyBundle;
import com.jetbrains.python.codeInsight.controlflow.ScopeOwner;
import com.jetbrains.python.codeInsight.imports.AddImportHelper;
import com.jetbrains.python.psi.PyExpression;
import com.jetbrains.python.psi.PyFile;
import com.jetbrains.python.refactoring.PyReplaceExpressionUtil;
import com.jetbrains.python.refactoring.introduce.IntroduceHandler;
import com.jetbrains.python.refactoring.introduce.IntroduceOperation;
import org.jetbrains.annotations.NotNull;
import java.util.Collection;
/**
* @author Alexey.Ivanov
*/
public class PyIntroduceConstantHandler extends IntroduceHandler {
public PyIntroduceConstantHandler() {
super(new ConstantValidator(), PyBundle.message("refactoring.introduce.constant.dialog.title"));
}
@Override
protected PsiElement replaceExpression(PsiElement expression, PyExpression newExpression, IntroduceOperation operation) {
if (PsiTreeUtil.getParentOfType(expression, ScopeOwner.class) instanceof PyFile) {
return super.replaceExpression(expression, newExpression, operation);
}
return PyReplaceExpressionUtil.replaceExpression(expression, newExpression);
}
@Override
protected PsiElement addDeclaration(@NotNull final PsiElement expression,
@NotNull final PsiElement declaration,
@NotNull final IntroduceOperation operation) {
final PsiElement anchor = expression.getContainingFile();
assert anchor instanceof PyFile;
return anchor.addBefore(declaration, AddImportHelper.getFileInsertPosition((PyFile)anchor));
}
@Override
protected Collection<String> generateSuggestedNames(@NotNull final PyExpression expression) {
Collection<String> names = new HashSet<String>();
for (String name : super.generateSuggestedNames(expression)) {
names.add(StringUtil.toUpperCase(name));
}
return names;
}
@Override
protected String getHelpId() {
return "python.reference.introduceConstant";
}
}
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