| /* |
| * 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 org.jetbrains.plugins.groovy.lang.psi.typeEnhancers; |
| |
| import com.intellij.openapi.extensions.ExtensionPointName; |
| import com.intellij.psi.*; |
| import com.intellij.util.ArrayUtil; |
| import com.intellij.util.containers.ContainerUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Created by Max Medvedev on 28/02/14 |
| */ |
| public abstract class SignatureHintProcessor { |
| private static final ExtensionPointName<SignatureHintProcessor> EP_NAME = ExtensionPointName.create("org.intellij.groovy.signatureHintProcessor"); |
| |
| static String[] buildOptions(PsiAnnotation anno) { |
| PsiAnnotationMemberValue options = anno.findAttributeValue("options"); |
| if (options instanceof PsiLiteral) { |
| Object value = ((PsiLiteral)options).getValue(); |
| if (value instanceof String) { |
| return new String[]{(String)value}; |
| } |
| } |
| else if (options instanceof PsiArrayInitializerMemberValue) { |
| PsiAnnotationMemberValue[] initializers = ((PsiArrayInitializerMemberValue)options).getInitializers(); |
| ArrayList<String> result = ContainerUtil.newArrayList(); |
| for (PsiAnnotationMemberValue initializer : initializers) { |
| if (initializer instanceof PsiLiteral) { |
| Object value = ((PsiLiteral)initializer).getValue(); |
| if (value instanceof String) { |
| result.add((String)value); |
| } |
| } |
| } |
| |
| return ArrayUtil.toStringArray(result); |
| } |
| |
| return ArrayUtil.EMPTY_STRING_ARRAY; |
| } |
| |
| public abstract String getHintName(); |
| |
| @NotNull |
| public abstract List<PsiType[]> inferExpectedSignatures(@NotNull PsiMethod method, |
| @NotNull PsiSubstitutor substitutor, |
| @NotNull String[] options); |
| |
| @Nullable |
| public static SignatureHintProcessor getHintProcessor(@NotNull String hint) { |
| for (SignatureHintProcessor processor : EP_NAME.getExtensions()) { |
| if (hint.equals(processor.getHintName())) { |
| return processor; |
| } |
| } |
| |
| return null; |
| } |
| } |