| /* |
| * Copyright 2006 Sascha Weinreuter |
| * |
| * 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.plugins.intelliLang.inject.java; |
| |
| import com.intellij.codeInsight.lookup.LookupElementBuilder; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiLiteralExpression; |
| import com.intellij.util.ArrayUtil; |
| import com.intellij.util.Function; |
| import com.intellij.util.PlatformIcons; |
| import com.intellij.util.containers.ContainerUtil; |
| import org.intellij.plugins.intelliLang.util.RegExpUtil; |
| import org.intellij.plugins.intelliLang.util.StringLiteralReference; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.Set; |
| |
| /** |
| * Provides completion suggestions for enum-like regular expression patterns such as |
| * <pre>@Pattern("abc|xyz|123")</pre>. |
| */ |
| final class RegExpEnumReference extends StringLiteralReference { |
| private final String myPattern; |
| |
| public RegExpEnumReference(PsiLiteralExpression expression, @NotNull String pattern) { |
| super(expression); |
| myPattern = pattern; |
| } |
| |
| @NotNull |
| public Object[] getVariants() { |
| final Set<String> values = getEnumValues(); |
| if (values == null || values.size() == 0) { |
| return ArrayUtil.EMPTY_OBJECT_ARRAY; |
| } |
| return ContainerUtil.map2Array(values, new Function<String, Object>() { |
| public Object fun(String s) { |
| return LookupElementBuilder.create(s).withIcon(PlatformIcons.ENUM_ICON); |
| } |
| }); |
| } |
| |
| public boolean isSoft() { |
| return true; |
| } |
| |
| @Nullable |
| public PsiElement resolve() { |
| final Set<String> values = getEnumValues(); |
| return values != null ? values.contains(getValue()) ? myValue : null : null; |
| } |
| |
| @Nullable |
| private Set<String> getEnumValues() { |
| return RegExpUtil.getEnumValues(myValue.getProject(), myPattern); |
| } |
| } |