1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.google.currysrc.api.process.ast; 17 18 import org.eclipse.jdt.core.dom.AbstractTypeDeclaration; 19 import org.eclipse.jdt.core.dom.BodyDeclaration; 20 import org.eclipse.jdt.core.dom.CompilationUnit; 21 import org.eclipse.jdt.core.dom.MethodDeclaration; 22 23 import java.util.List; 24 25 /** 26 * Locates the {@link org.eclipse.jdt.core.dom.BodyDeclaration} associated with a method 27 * declaration. 28 */ 29 public final class MethodLocator implements BodyDeclarationLocator { 30 31 static final String LOCATOR_TYPE_NAME = "method"; 32 33 private final TypeLocator typeLocator; 34 35 private final String methodName; 36 37 private final ParameterMatcher parameterMatcher; 38 39 public MethodLocator(TypeLocator typeLocator, String methodName, List<String> parameterTypes) { 40 this.typeLocator = typeLocator; 41 this.methodName = methodName; 42 this.parameterMatcher = new ParameterMatcher(parameterTypes); 43 } 44 45 @Override public TypeLocator getTypeLocator() { 46 return typeLocator; 47 } 48 49 @Override 50 public boolean matches(BodyDeclaration node) { 51 if (node instanceof MethodDeclaration) { 52 BodyDeclaration parentNode = (BodyDeclaration) node.getParent(); 53 MethodDeclaration methodDeclaration = (MethodDeclaration) node; 54 return typeLocator.matches(parentNode) 55 && methodDeclaration.getName().getFullyQualifiedName().equals(methodName) 56 && parameterMatcher.matches(methodDeclaration); 57 } 58 return false; 59 } 60 61 @Override 62 public MethodDeclaration find(CompilationUnit cu) { 63 AbstractTypeDeclaration typeDeclaration = typeLocator.find(cu); 64 if (typeDeclaration == null) { 65 return null; 66 } 67 for (BodyDeclaration bodyDeclaration 68 : (List<BodyDeclaration>) typeDeclaration.bodyDeclarations()) { 69 if (bodyDeclaration instanceof MethodDeclaration) { 70 MethodDeclaration methodDeclaration = (MethodDeclaration) bodyDeclaration; 71 if (methodDeclaration.getName().getFullyQualifiedName().equals(methodName)) { 72 if (parameterMatcher.matches(methodDeclaration)) { 73 return methodDeclaration; 74 } 75 } 76 } 77 } 78 return null; 79 } 80 81 @Override public String getStringFormType() { 82 return LOCATOR_TYPE_NAME; 83 } 84 85 @Override public String getStringFormTarget() { 86 return typeLocator.getStringFormTarget() + "#" + methodName 87 + "(" + parameterMatcher.toStringForm() + ")"; 88 } 89 90 @Override 91 public String toString() { 92 return "MethodLocator{" + 93 "typeLocator=" + typeLocator + 94 ", methodName='" + methodName + '\'' + 95 ", parameterMatcher=" + parameterMatcher + 96 '}'; 97 } 98 } 99
