| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * 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 android.signature.cts; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| import java.util.stream.Collectors; |
| |
| public class DexMethod extends DexMember { |
| private final List<String> mParamTypeList; |
| |
| public DexMethod(String className, String name, String signature) { |
| super(className, name, parseDexReturnType(signature)); |
| mParamTypeList = parseDexTypeList(signature); |
| } |
| |
| public String getDexSignature() { |
| return "(" + String.join("", mParamTypeList) + ")" + getDexType(); |
| } |
| |
| public List<String> getJavaParameterTypes() { |
| return mParamTypeList.stream().map(DexMember::dexToJavaType).collect(Collectors.toList()); |
| } |
| |
| public boolean isConstructor() { |
| return "<init>".equals(getName()) && "V".equals(getDexType()); |
| } |
| |
| public boolean isStaticConstructor() { |
| return "<clinit>".equals(getName()) && "V".equals(getDexType()); |
| } |
| |
| @Override |
| public String toString() { |
| return getJavaType() + " " + getJavaClassName() + "." + getName() |
| + "(" + String.join(", ", getJavaParameterTypes()) + ")"; |
| } |
| |
| private static Matcher matchSignature(String signature) { |
| Matcher m = Pattern.compile("^\\((.*)\\)(.*)$").matcher(signature); |
| if (!m.matches()) { |
| throw new RuntimeException("Could not parse method signature: " + signature); |
| } |
| return m; |
| } |
| |
| private static String parseDexReturnType(String signature) { |
| return matchSignature(signature).group(2); |
| } |
| |
| private static List<String> parseDexTypeList(String signature) { |
| String typeSequence = matchSignature(signature).group(1); |
| List<String> list = new ArrayList<String>(); |
| while (!typeSequence.isEmpty()) { |
| String type = firstDexTypeFromList(typeSequence); |
| list.add(type); |
| typeSequence = typeSequence.substring(type.length()); |
| } |
| return list; |
| } |
| |
| /** |
| * Returns the first dex type in `typeList` or throws a ParserException |
| * if a dex type is not recognized. The input is not changed. |
| */ |
| private static String firstDexTypeFromList(String typeList) { |
| String dexDimension = ""; |
| while (typeList.startsWith("[")) { |
| dexDimension += "["; |
| typeList = typeList.substring(1); |
| } |
| |
| String type = null; |
| if (typeList.startsWith("V") |
| || typeList.startsWith("Z") |
| || typeList.startsWith("B") |
| || typeList.startsWith("C") |
| || typeList.startsWith("S") |
| || typeList.startsWith("I") |
| || typeList.startsWith("J") |
| || typeList.startsWith("F") |
| || typeList.startsWith("D")) { |
| type = typeList.substring(0, 1); |
| } else if (typeList.startsWith("L") && typeList.indexOf(";") > 0) { |
| type = typeList.substring(0, typeList.indexOf(";") + 1); |
| } else { |
| throw new RuntimeException("Unexpected dex type in \"" + typeList + "\""); |
| } |
| |
| return dexDimension + type; |
| } |
| } |