| // 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.cf.code; |
| |
| import com.android.tools.r8.cf.CfPrinter; |
| import com.android.tools.r8.errors.Unreachable; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.graph.UseRegistry; |
| import com.android.tools.r8.ir.conversion.CfSourceCode; |
| import com.android.tools.r8.ir.conversion.CfState; |
| import com.android.tools.r8.ir.conversion.IRBuilder; |
| import com.android.tools.r8.naming.NamingLens; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Type; |
| |
| public class CfConstClass extends CfInstruction { |
| |
| private final DexType type; |
| |
| public CfConstClass(DexType type) { |
| this.type = type; |
| } |
| |
| public DexType getType() { |
| return type; |
| } |
| |
| @Override |
| public void write(MethodVisitor visitor, NamingLens lens) { |
| visitor.visitLdcInsn(Type.getObjectType(getInternalName(lens))); |
| } |
| |
| @Override |
| public void print(CfPrinter printer) { |
| printer.print(this); |
| } |
| |
| @Override |
| public boolean canThrow() { |
| return true; |
| } |
| |
| private String getInternalName(NamingLens lens) { |
| switch (type.toShorty()) { |
| case '[': |
| case 'L': |
| return lens.lookupInternalName(type); |
| case 'Z': |
| return "java/lang/Boolean/TYPE"; |
| case 'B': |
| return "java/lang/Byte/TYPE"; |
| case 'S': |
| return "java/lang/Short/TYPE"; |
| case 'C': |
| return "java/lang/Character/TYPE"; |
| case 'I': |
| return "java/lang/Integer/TYPE"; |
| case 'F': |
| return "java/lang/Float/TYPE"; |
| case 'J': |
| return "java/lang/Long/TYPE"; |
| case 'D': |
| return "java/lang/Double/TYPE"; |
| default: |
| throw new Unreachable("Unexpected type in const-class: " + type); |
| } |
| } |
| |
| @Override |
| public void registerUse(UseRegistry registry, DexType clazz) { |
| registry.registerConstClass(type); |
| } |
| |
| @Override |
| public void buildIR(IRBuilder builder, CfState state, CfSourceCode code) { |
| builder.addConstClass(state.push(builder.appView.dexItemFactory().classType).register, type); |
| } |
| } |