| // 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.ir.synthetic; |
| |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.ir.code.Position; |
| import com.android.tools.r8.ir.code.ValueType; |
| import com.android.tools.r8.ir.conversion.IRBuilder; |
| import com.android.tools.r8.ir.desugar.NestBasedAccessDesugaring.DexFieldWithAccess; |
| |
| // Source code representing simple forwarding method. |
| public final class FieldAccessorSourceCode extends SyntheticSourceCode { |
| |
| private final DexFieldWithAccess fieldWithAccess; |
| |
| public FieldAccessorSourceCode( |
| DexType receiver, |
| DexMethod method, |
| Position callerPosition, |
| DexMethod originalMethod, |
| DexFieldWithAccess field) { |
| super(receiver, method, callerPosition, originalMethod); |
| this.fieldWithAccess = field; |
| assert method.proto.returnType == fieldWithAccess.getType() || fieldWithAccess.isPut(); |
| } |
| |
| @Override |
| protected void prepareInstructions() { |
| if (fieldWithAccess.isInstanceGet()) { |
| ValueType valueType = ValueType.fromDexType(proto.returnType); |
| int objReg = getParamRegister(0); |
| int returnReg = nextRegister(valueType); |
| add(builder -> builder.addInstanceGet(returnReg, objReg, fieldWithAccess.getField())); |
| add(builder -> builder.addReturn(returnReg)); |
| } else if (fieldWithAccess.isStaticGet()) { |
| ValueType valueType = ValueType.fromDexType(proto.returnType); |
| int returnReg = nextRegister(valueType); |
| add(builder -> builder.addStaticGet(returnReg, fieldWithAccess.getField())); |
| add(builder -> builder.addReturn(returnReg)); |
| } else if (fieldWithAccess.isInstancePut()) { |
| int objReg = getParamRegister(0); |
| int putValueReg = getParamRegister(1); |
| add(builder -> builder.addInstancePut(putValueReg, objReg, fieldWithAccess.getField())); |
| add(IRBuilder::addReturn); |
| } else { |
| assert fieldWithAccess.isStaticPut(); |
| int putValueReg = getParamRegister(0); |
| add(builder -> builder.addStaticPut(putValueReg, fieldWithAccess.getField())); |
| add(IRBuilder::addReturn); |
| } |
| } |
| } |