| /* |
| * Copyright 2000-2014 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.psi.impl; |
| |
| import com.intellij.lang.java.lexer.JavaLexer; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.roots.LanguageLevelProjectExtension; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.pom.java.LanguageLevel; |
| import com.intellij.psi.PsiNameHelper; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class PsiNameHelperImpl extends PsiNameHelper { |
| private final LanguageLevelProjectExtension myLanguageLevelExtension; |
| |
| public PsiNameHelperImpl(Project project) { |
| myLanguageLevelExtension = LanguageLevelProjectExtension.getInstance(project); |
| } |
| |
| @Override |
| public boolean isIdentifier(@Nullable String text) { |
| return isIdentifier(text, getLanguageLevel()); |
| } |
| |
| @NotNull |
| protected LanguageLevel getLanguageLevel() { |
| return myLanguageLevelExtension.getLanguageLevel(); |
| } |
| |
| @Override |
| public boolean isIdentifier(@Nullable String text, @NotNull LanguageLevel languageLevel) { |
| return text != null && StringUtil.isJavaIdentifier(text) && !JavaLexer.isKeyword(text, languageLevel); |
| } |
| |
| @Override |
| public boolean isKeyword(@Nullable String text) { |
| return text != null && JavaLexer.isKeyword(text, getLanguageLevel()); |
| } |
| |
| @Override |
| public boolean isQualifiedName(@Nullable String text) { |
| if (text == null) return false; |
| int index = 0; |
| while (true) { |
| int index1 = text.indexOf('.', index); |
| if (index1 < 0) index1 = text.length(); |
| if (!isIdentifier(text.substring(index, index1))) return false; |
| if (index1 == text.length()) return true; |
| index = index1 + 1; |
| } |
| } |
| |
| public static PsiNameHelper getInstance() { |
| return new PsiNameHelperImpl() { |
| @NotNull |
| @Override |
| protected LanguageLevel getLanguageLevel() { |
| return LanguageLevel.HIGHEST; |
| } |
| }; |
| } |
| |
| private PsiNameHelperImpl() { |
| myLanguageLevelExtension = null; |
| } |
| } |