| // 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.code; |
| |
| import com.android.tools.r8.errors.Unreachable; |
| import com.android.tools.r8.graph.DexReference; |
| import com.android.tools.r8.graph.ObjectToOffsetMapping; |
| import com.android.tools.r8.graph.UseRegistry; |
| import com.android.tools.r8.ir.conversion.IRBuilder; |
| import com.android.tools.r8.naming.ClassNameMapper; |
| import com.android.tools.r8.naming.dexitembasedstring.NameComputationInfo; |
| import java.nio.ShortBuffer; |
| |
| public class DexItemBasedConstString extends Format21c { |
| |
| public static final String NAME = "DexItemBasedConstString"; |
| public static final String SMALI_NAME = "const-string*"; |
| |
| private final NameComputationInfo<?> nameComputationInfo; |
| |
| public DexItemBasedConstString( |
| int register, DexReference string, NameComputationInfo<?> nameComputationInfo) { |
| super(register, string); |
| this.nameComputationInfo = nameComputationInfo; |
| } |
| |
| public DexReference getItem() { |
| return (DexReference) BBBB; |
| } |
| |
| public NameComputationInfo<?> getNameComputationInfo() { |
| return nameComputationInfo; |
| } |
| |
| @Override |
| public String getName() { |
| return NAME; |
| } |
| |
| @Override |
| public String getSmaliName() { |
| return SMALI_NAME; |
| } |
| |
| @Override |
| public int getOpcode() { |
| throw new Unreachable( |
| "DexItemBasedConstString instructions should always be rewritten into ConstString"); |
| } |
| |
| @Override |
| public DexItemBasedConstString asDexItemBasedConstString() { |
| return this; |
| } |
| |
| @Override |
| public boolean isDexItemBasedConstString() { |
| return true; |
| } |
| |
| @Override |
| public String toString(ClassNameMapper naming) { |
| // TODO(christofferqa): Apply mapping to item. |
| return formatString("v" + AA + ", \"" + BBBB.toString() + "\""); |
| } |
| |
| @Override |
| public String toSmaliString(ClassNameMapper naming) { |
| // TODO(christofferqa): Apply mapping to item. |
| return formatSmaliString("v" + AA + ", \"" + BBBB.toString() + "\""); |
| } |
| |
| @Override |
| public void write(ShortBuffer dest, ObjectToOffsetMapping mapping) { |
| throw new Unreachable( |
| "DexItemBasedConstString instructions should always be rewritten into ConstString"); |
| } |
| |
| @Override |
| public void registerUse(UseRegistry registry) { |
| if (nameComputationInfo.needsToRegisterReference()) { |
| assert getItem().isDexType(); |
| registry.registerTypeReference(getItem().asDexType()); |
| } |
| } |
| |
| @Override |
| public void buildIR(IRBuilder builder) { |
| builder.addDexItemBasedConstString(AA, (DexReference) BBBB, nameComputationInfo); |
| } |
| |
| @Override |
| public boolean canThrow() { |
| return true; |
| } |
| } |