| // Copyright (c) 2018, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| package com.android.tools.r8.kotlin; |
| |
| import com.android.tools.r8.DiagnosticsHandler; |
| import com.android.tools.r8.graph.DexClass; |
| import com.android.tools.r8.graph.DexItemFactory; |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.DexString; |
| import com.android.tools.r8.graph.DexType; |
| import com.google.common.collect.ImmutableList; |
| import it.unimi.dsi.fastutil.objects.Object2IntArrayMap; |
| import it.unimi.dsi.fastutil.objects.Object2IntMap; |
| import java.util.function.Function; |
| import java.util.stream.Collectors; |
| import java.util.stream.IntStream; |
| |
| /** Class provides basic information about symbols related to Kotlin support. */ |
| public final class Kotlin { |
| |
| // Simply "kotlin", but to avoid being renamed by Shadow.relocate in build.gradle. |
| public static final String NAME = String.join("", ImmutableList.of("k", "o", "t", "l", "i", "n")); |
| |
| // Simply "Lkotlin/", but to avoid being renamed by Shadow.relocate in build.gradle. |
| private static final String KOTLIN = |
| String.join("", ImmutableList.of("L", "k", "o", "t", "l", "i", "n", "/")); |
| |
| static String addKotlinPrefix(String str) { |
| return KOTLIN + str; |
| } |
| |
| public final DexItemFactory factory; |
| |
| public final Functional functional; |
| public final Intrinsics intrinsics; |
| public final Metadata metadata; |
| |
| public Kotlin(DexItemFactory factory) { |
| this.factory = factory; |
| |
| this.functional = new Functional(); |
| this.intrinsics = new Intrinsics(); |
| this.metadata = new Metadata(); |
| } |
| |
| public final class Functional { |
| // NOTE: Kotlin stdlib defines interface Function0 till Function22 explicitly, see: |
| // https://github.com/JetBrains/kotlin/blob/master/libraries/ |
| // stdlib/jvm/runtime/kotlin/jvm/functions/Functions.kt |
| // |
| // For functions with arity bigger that 22 it is supposed to use FunctionN as described |
| // in https://github.com/JetBrains/kotlin/blob/master/spec-docs/function-types.md, |
| // but in current implementation (v1.2.21) defining such a lambda results in: |
| // > "Error: A JNI error has occurred, please check your installation and try again" |
| // |
| // This implementation just ignores lambdas with arity > 22. |
| private final Object2IntMap<DexType> functions = new Object2IntArrayMap<>( |
| IntStream.rangeClosed(0, 22).boxed().collect( |
| Collectors.toMap( |
| i -> factory.createType(addKotlinPrefix("jvm/functions/Function") + i + ";"), |
| Function.identity())) |
| ); |
| |
| private Functional() { |
| } |
| |
| public final DexString kotlinStyleLambdaInstanceName = factory.createString("INSTANCE"); |
| |
| public final DexType functionBase = |
| factory.createType(addKotlinPrefix("jvm/internal/FunctionBase;")); |
| public final DexType lambdaType = factory.createType(addKotlinPrefix("jvm/internal/Lambda;")); |
| |
| public final DexMethod lambdaInitializerMethod = factory.createMethod( |
| lambdaType, |
| factory.createProto(factory.voidType, factory.intType), |
| factory.constructorMethodName); |
| |
| public boolean isFunctionInterface(DexType type) { |
| return functions.containsKey(type); |
| } |
| |
| public int getArity(DexType type) { |
| assert isFunctionInterface(type) |
| : "Request to retrieve the arity from non-Kotlin-Function: " + type.toSourceString(); |
| return functions.getInt(type); |
| } |
| } |
| |
| public final class Metadata { |
| public final DexType kotlinMetadataType = factory.createType(addKotlinPrefix("Metadata;")); |
| public final DexString kind = factory.createString("k"); |
| public final DexString metadataVersion = factory.createString("mv"); |
| public final DexString bytecodeVersion = factory.createString("bv"); |
| public final DexString data1 = factory.createString("d1"); |
| public final DexString data2 = factory.createString("d2"); |
| public final DexString extraString = factory.createString("xs"); |
| public final DexString packageName = factory.createString("pn"); |
| public final DexString extraInt = factory.createString("xi"); |
| } |
| |
| // kotlin.jvm.internal.Intrinsics class |
| public final class Intrinsics { |
| public final DexType type = factory.createType(addKotlinPrefix("jvm/internal/Intrinsics;")); |
| public final DexMethod throwParameterIsNullException = factory.createMethod(type, |
| factory.createProto(factory.voidType, factory.stringType), "throwParameterIsNullException"); |
| public final DexMethod checkParameterIsNotNull = factory.createMethod(type, |
| factory.createProto(factory.voidType, factory.objectType, factory.stringType), |
| "checkParameterIsNotNull"); |
| public final DexMethod throwNpe = factory.createMethod( |
| type, factory.createProto(factory.voidType), "throwNpe"); |
| } |
| |
| // Calculates kotlin info for a class. |
| public KotlinInfo getKotlinInfo(DexClass clazz, DiagnosticsHandler reporter) { |
| return KotlinClassMetadataReader.getKotlinInfo(this, clazz, reporter); |
| } |
| } |