| /* |
| * 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; |
| |
| import com.intellij.lang.LanguageNamesValidation; |
| import com.intellij.lang.refactoring.NamesValidator; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.Pair; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.jetbrains.python.PythonLanguage; |
| import com.jetbrains.python.psi.PyClass; |
| import com.jetbrains.python.psi.PyExpression; |
| import com.jetbrains.python.psi.PyFunction; |
| import com.jetbrains.python.psi.impl.PyBuiltinCache; |
| import com.jetbrains.python.refactoring.PyRefactoringUtil; |
| import com.jetbrains.python.refactoring.PyReplaceExpressionUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Created by IntelliJ IDEA. |
| * User: Alexey.Ivanov |
| * Date: Aug 19, 2009 |
| * Time: 4:20:13 PM |
| */ |
| public abstract class IntroduceValidator { |
| private final NamesValidator myNamesValidator = LanguageNamesValidation.INSTANCE.forLanguage(PythonLanguage.getInstance()); |
| |
| public boolean isNameValid(final String name, final Project project) { |
| return (name != null) && |
| (myNamesValidator.isIdentifier(name, project)) && |
| !(myNamesValidator.isKeyword(name, project)); |
| } |
| |
| public boolean checkPossibleName(@NotNull final String name, @NotNull final PyExpression expression) { |
| return check(name, expression) == null; |
| } |
| |
| @Nullable |
| public abstract String check(String name, PsiElement psiElement); |
| |
| public static boolean isDefinedInScope(String name, PsiElement psiElement) { |
| if (psiElement.getUserData(PyReplaceExpressionUtil.SELECTION_BREAKS_AST_NODE) != null) { |
| final Pair<PsiElement,TextRange> data = psiElement.getUserData(PyReplaceExpressionUtil.SELECTION_BREAKS_AST_NODE); |
| psiElement = data.first; |
| } |
| PsiElement context = PsiTreeUtil.getParentOfType(psiElement, PyFunction.class); |
| if (context == null) { |
| context = PsiTreeUtil.getParentOfType(psiElement, PyClass.class); |
| } |
| if (context == null) { |
| context = psiElement.getContainingFile(); |
| } |
| |
| return PyRefactoringUtil.collectUsedNames(context).contains(name) || PyBuiltinCache.getInstance(psiElement).getByName(name) != null; |
| } |
| } |