| // Copyright (c) 2020, 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.graph.DexField; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.graph.InitClassLens; |
| 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.ir.optimize.Inliner.ConstraintWithTarget; |
| import com.android.tools.r8.ir.optimize.InliningConstraints; |
| import com.android.tools.r8.naming.NamingLens; |
| import org.objectweb.asm.MethodVisitor; |
| |
| public class CfInitClass extends CfInstruction { |
| |
| private static final int OPCODE = org.objectweb.asm.Opcodes.GETSTATIC; |
| |
| private final DexType clazz; |
| |
| public CfInitClass(DexType clazz) { |
| this.clazz = clazz; |
| } |
| |
| public DexType getClassValue() { |
| return clazz; |
| } |
| |
| public int getOpcode() { |
| return OPCODE; |
| } |
| |
| @Override |
| public void write(MethodVisitor visitor, InitClassLens initClassLens, NamingLens lens) { |
| DexField field = initClassLens.getInitClassField(clazz); |
| String owner = lens.lookupInternalName(field.holder); |
| String name = lens.lookupName(field).toString(); |
| String desc = lens.lookupDescriptor(field.type).toString(); |
| visitor.visitFieldInsn(OPCODE, owner, name, desc); |
| } |
| |
| @Override |
| public void print(CfPrinter printer) { |
| printer.print(this); |
| } |
| |
| @Override |
| public void registerUse(UseRegistry registry, DexType context) { |
| registry.registerInitClass(clazz); |
| } |
| |
| @Override |
| public boolean canThrow() { |
| return true; |
| } |
| |
| @Override |
| public void buildIR(IRBuilder builder, CfState state, CfSourceCode code) { |
| int dest = state.push(builder.appView.dexItemFactory().intType).register; |
| builder.addInitClass(dest, clazz); |
| } |
| |
| @Override |
| public ConstraintWithTarget inliningConstraint( |
| InliningConstraints inliningConstraints, DexType context) { |
| return inliningConstraints.forInitClass(clazz, context); |
| } |
| } |