| // Copyright (c) 2016, 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.dex.IndexedItemCollection; |
| import com.android.tools.r8.errors.InternalCompilerError; |
| import com.android.tools.r8.graph.DexString; |
| import com.android.tools.r8.graph.GraphLens; |
| import com.android.tools.r8.graph.ObjectToOffsetMapping; |
| import com.android.tools.r8.graph.OffsetToObjectMapping; |
| import com.android.tools.r8.graph.ProgramMethod; |
| import com.android.tools.r8.ir.conversion.IRBuilder; |
| import com.android.tools.r8.ir.conversion.LensCodeRewriterUtils; |
| import com.android.tools.r8.naming.ClassNameMapper; |
| import com.android.tools.r8.utils.structural.StructuralSpecification; |
| import java.nio.ShortBuffer; |
| |
| public class ConstString extends Format21c<DexString> { |
| |
| public static final int OPCODE = 0x1a; |
| public static final String NAME = "ConstString"; |
| public static final String SMALI_NAME = "const-string"; |
| |
| ConstString(int high, BytecodeStream stream, OffsetToObjectMapping mapping) { |
| super(high, stream, mapping.getStringMap()); |
| } |
| |
| public ConstString(int register, DexString string) { |
| super(register, string); |
| } |
| |
| public DexString getString() { |
| return BBBB; |
| } |
| |
| @Override |
| void internalSubSpecify(StructuralSpecification<Format21c<DexString>, ?> spec) { |
| spec.withItem(i -> i.BBBB); |
| } |
| |
| @Override |
| public void collectIndexedItems( |
| IndexedItemCollection indexedItems, |
| ProgramMethod context, |
| GraphLens graphLens, |
| LensCodeRewriterUtils rewriter) { |
| getString().collectIndexedItems(indexedItems); |
| } |
| |
| @Override |
| public String getName() { |
| return NAME; |
| } |
| |
| @Override |
| public String getSmaliName() { |
| return SMALI_NAME; |
| } |
| |
| @Override |
| public int getOpcode() { |
| return OPCODE; |
| } |
| |
| @Override |
| public ConstString asConstString() { |
| return this; |
| } |
| |
| @Override |
| public boolean isConstString() { |
| return true; |
| } |
| |
| @Override |
| public String toString(ClassNameMapper naming) { |
| return formatString("v" + AA + ", \"" + BBBB.toString() + "\""); |
| } |
| |
| @Override |
| public String toSmaliString(ClassNameMapper naming) { |
| return formatSmaliString("v" + AA + ", \"" + BBBB.toString() + "\""); |
| } |
| |
| @Override |
| public void write( |
| ShortBuffer dest, |
| ProgramMethod context, |
| GraphLens graphLens, |
| ObjectToOffsetMapping mapping, |
| LensCodeRewriterUtils rewriter) { |
| int index = BBBB.getOffset(mapping); |
| if (index != (index & 0xffff)) { |
| throw new InternalCompilerError("String-index overflow."); |
| } |
| writeFirst(AA, dest); |
| write16BitReference(BBBB, dest, mapping); |
| } |
| |
| @Override |
| public void buildIR(IRBuilder builder) { |
| builder.addConstString(AA, (DexString) BBBB); |
| } |
| |
| @Override |
| public boolean canThrow() { |
| return true; |
| } |
| } |