| // 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.graph.AppView; |
| import com.android.tools.r8.graph.CfCode; |
| import com.android.tools.r8.graph.CfCompareHelper; |
| import com.android.tools.r8.graph.DexClassAndMethod; |
| import com.android.tools.r8.graph.DexItemFactory; |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.DexProto; |
| import com.android.tools.r8.graph.GraphLens; |
| import com.android.tools.r8.graph.InitClassLens; |
| import com.android.tools.r8.graph.ProgramMethod; |
| 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.conversion.LensCodeRewriterUtils; |
| 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 com.android.tools.r8.optimize.interfaces.analysis.CfFrameState; |
| import com.android.tools.r8.utils.structural.CompareToVisitor; |
| import java.util.ListIterator; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Type; |
| |
| public class CfConstMethodType extends CfInstruction { |
| |
| private DexProto type; |
| |
| public CfConstMethodType(DexProto type) { |
| this.type = type; |
| } |
| |
| public DexProto getType() { |
| return type; |
| } |
| |
| @Override |
| public int getCompareToId() { |
| return CfCompareHelper.CONST_METHOD_TYPE_COMPARE_ID; |
| } |
| |
| @Override |
| public int internalAcceptCompareTo( |
| CfInstruction other, CompareToVisitor visitor, CfCompareHelper helper) { |
| return type.acceptCompareTo(((CfConstMethodType) other).type, visitor); |
| } |
| |
| @Override |
| public void write( |
| AppView<?> appView, |
| ProgramMethod context, |
| DexItemFactory dexItemFactory, |
| GraphLens graphLens, |
| InitClassLens initClassLens, |
| NamingLens namingLens, |
| LensCodeRewriterUtils rewriter, |
| MethodVisitor visitor) { |
| DexProto rewrittenType = rewriter.rewriteProto(getType()); |
| visitor.visitLdcInsn(Type.getType(rewrittenType.toDescriptorString(namingLens))); |
| } |
| |
| @Override |
| public int bytecodeSizeUpperBound() { |
| // ldc or ldc_w |
| return 3; |
| } |
| |
| @Override |
| public void print(CfPrinter printer) { |
| printer.print(this); |
| } |
| |
| @Override |
| void internalRegisterUse( |
| UseRegistry<?> registry, DexClassAndMethod context, ListIterator<CfInstruction> iterator) { |
| registry.registerProto(type); |
| } |
| |
| @Override |
| public boolean canThrow() { |
| // const-class and const-string* may throw in dex. |
| return true; |
| } |
| |
| @Override |
| public void buildIR(IRBuilder builder, CfState state, CfSourceCode code) { |
| builder.addConstMethodType( |
| state.push(builder.appView.dexItemFactory().methodTypeType).register, type); |
| } |
| |
| @Override |
| public ConstraintWithTarget inliningConstraint( |
| InliningConstraints inliningConstraints, CfCode code, ProgramMethod context) { |
| return inliningConstraints.forConstMethodType(); |
| } |
| |
| @Override |
| public void evaluate( |
| CfFrameVerificationHelper frameBuilder, |
| DexMethod context, |
| AppView<?> appView, |
| DexItemFactory dexItemFactory) { |
| // ... → |
| // ..., value |
| frameBuilder.push(dexItemFactory.methodTypeType); |
| } |
| |
| @Override |
| public CfFrameState evaluate( |
| CfFrameState frame, |
| ProgramMethod context, |
| AppView<?> appView, |
| DexItemFactory dexItemFactory) { |
| // ... → |
| // ..., value |
| return frame.push(dexItemFactory.methodTypeType); |
| } |
| } |