| // Copyright (c) 2017, 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.DexMethodHandle; |
| 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.graph.UseRegistry; |
| import com.android.tools.r8.graph.UseRegistry.MethodHandleUse; |
| 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 ConstMethodHandle extends Format21c<DexMethodHandle> { |
| |
| public static final int OPCODE = 0xfe; |
| public static final String NAME = "ConstMethodHandle"; |
| public static final String SMALI_NAME = "const-method-handle"; |
| |
| ConstMethodHandle(int high, BytecodeStream stream, OffsetToObjectMapping mapping) { |
| super(high, stream, mapping.getMethodHandleMap()); |
| } |
| |
| public ConstMethodHandle(int register, DexMethodHandle methodHandle) { |
| super(register, methodHandle); |
| } |
| |
| public DexMethodHandle getMethodHandle() { |
| return BBBB; |
| } |
| |
| @Override |
| public String getName() { |
| return NAME; |
| } |
| |
| @Override |
| public String getSmaliName() { |
| return SMALI_NAME; |
| } |
| |
| @Override |
| public int getOpcode() { |
| return OPCODE; |
| } |
| |
| @Override |
| void internalSubSpecify(StructuralSpecification<Format21c<DexMethodHandle>, ?> spec) { |
| spec.withItem(i -> i.BBBB); |
| } |
| |
| @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 registerUse(UseRegistry registry) { |
| registry.registerMethodHandle( |
| getMethodHandle(), MethodHandleUse.NOT_ARGUMENT_TO_LAMBDA_METAFACTORY); |
| } |
| |
| @Override |
| public void write( |
| ShortBuffer dest, |
| ProgramMethod context, |
| GraphLens graphLens, |
| ObjectToOffsetMapping mapping, |
| LensCodeRewriterUtils rewriter) { |
| DexMethodHandle rewritten = |
| rewriter.rewriteDexMethodHandle( |
| getMethodHandle(), MethodHandleUse.NOT_ARGUMENT_TO_LAMBDA_METAFACTORY, context); |
| int index = rewritten.getOffset(mapping); |
| if (index != (index & 0xffff)) { |
| throw new InternalCompilerError("MethodHandle-index overflow."); |
| } |
| writeFirst(AA, dest); |
| write16BitReference(rewritten, dest, mapping); |
| } |
| |
| @Override |
| public void collectIndexedItems( |
| IndexedItemCollection indexedItems, |
| ProgramMethod context, |
| GraphLens graphLens, |
| LensCodeRewriterUtils rewriter) { |
| DexMethodHandle rewritten = |
| rewriter.rewriteDexMethodHandle( |
| getMethodHandle(), MethodHandleUse.NOT_ARGUMENT_TO_LAMBDA_METAFACTORY, context); |
| rewritten.collectIndexedItems(indexedItems); |
| } |
| |
| @Override |
| public void buildIR(IRBuilder builder) { |
| builder.addConstMethodHandle(AA, BBBB); |
| } |
| |
| @Override |
| public boolean canThrow() { |
| return true; |
| } |
| } |