1 /* 2 * Copyright 2018 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 17 package com.android.tools.build.jetifier.core.proguard 18 19 import com.android.tools.build.jetifier.core.type.JavaType 20 import java.util.regex.Pattern 21 22 /** 23 * Represents a type reference in ProGuard file. This type is similar to the regular java type but 24 * can also contain wildcards (*,**,?). 25 * 26 * ProGuard can also contain token {any}. This comes from the configuration and is simply used as 27 * a shortcut for multiple different wildcards (such as. "*", "**", "***", "*.*", "**.*"). 28 */ 29 data class ProGuardType(val value: String) { 30 31 companion object { 32 val EXPANSION_TOKENS = listOf("*", "**", "***", "*/*", "**/*") 33 34 val TRIVIAL_SELECTOR_MATCHER: Pattern = Pattern.compile("^[/?*]*$") 35 36 /** Creates the type reference from notation where packages are separated using '.' */ fromDotNotationnull37 fun fromDotNotation(type: String): ProGuardType { 38 return ProGuardType(type.replace('.', '/')) 39 } 40 } 41 42 init { 43 if (value.contains('.')) { 44 throw IllegalArgumentException("The type does not support '.' as package separator!") 45 } 46 } 47 48 /** 49 * Whether the type reference is trivial such as "*". 50 */ isTrivialnull51 fun isTrivial() = TRIVIAL_SELECTOR_MATCHER.matcher(value).matches() 52 53 fun toJavaType(): JavaType? { 54 if (value.contains('*') || value.contains('?')) { 55 return null 56 } 57 return JavaType(value) 58 } 59 needsExpansionnull60 fun needsExpansion(): Boolean { 61 return value.contains("{any}") 62 } 63 expandWithnull64 fun expandWith(token: String): ProGuardType { 65 return ProGuardType(value.replace("{any}", token)) 66 } 67 68 /** Returns the type reference as a string where packages are separated using '.' */ toDotNotationnull69 fun toDotNotation(): String { 70 return value.replace('/', '.') 71 } 72 }