| // 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.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.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.CfState.Slot; |
| 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 com.android.tools.r8.utils.DescriptorUtils; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Opcodes; |
| |
| public class CfNewArray extends CfInstruction { |
| |
| private final DexType type; |
| |
| public CfNewArray(DexType type) { |
| assert type.isArrayType(); |
| this.type = type; |
| } |
| |
| public DexType getType() { |
| return type; |
| } |
| |
| private int getPrimitiveTypeCode() { |
| switch (type.descriptor.content[1]) { |
| case 'Z': |
| return Opcodes.T_BOOLEAN; |
| case 'C': |
| return Opcodes.T_CHAR; |
| case 'F': |
| return Opcodes.T_FLOAT; |
| case 'D': |
| return Opcodes.T_DOUBLE; |
| case 'B': |
| return Opcodes.T_BYTE; |
| case 'S': |
| return Opcodes.T_SHORT; |
| case 'I': |
| return Opcodes.T_INT; |
| case 'J': |
| return Opcodes.T_LONG; |
| default: |
| throw new Unreachable("Unexpected type for new-array: " + type); |
| } |
| } |
| |
| private String getElementInternalName(NamingLens lens) { |
| assert !type.isPrimitiveArrayType(); |
| String renamedArrayType = lens.lookupDescriptor(type).toString(); |
| assert renamedArrayType.charAt(0) == '['; |
| String elementType = renamedArrayType.substring(1); |
| return DescriptorUtils.descriptorToInternalName(elementType); |
| } |
| |
| @Override |
| public void write(MethodVisitor visitor, InitClassLens initClassLens, NamingLens lens) { |
| if (type.isPrimitiveArrayType()) { |
| visitor.visitIntInsn(Opcodes.NEWARRAY, getPrimitiveTypeCode()); |
| } else { |
| visitor.visitTypeInsn(Opcodes.ANEWARRAY, getElementInternalName(lens)); |
| } |
| } |
| |
| @Override |
| public void print(CfPrinter printer) { |
| printer.print(this); |
| } |
| |
| @Override |
| public void registerUse(UseRegistry registry, DexType clazz) { |
| if (!type.isPrimitiveArrayType()) { |
| registry.registerTypeReference(type); |
| } |
| } |
| |
| @Override |
| public boolean canThrow() { |
| return true; |
| } |
| |
| @Override |
| public void buildIR(IRBuilder builder, CfState state, CfSourceCode code) { |
| Slot size = state.pop(); |
| Slot push = state.push(type); |
| builder.addNewArrayEmpty(push.register, size.register, type); |
| } |
| |
| @Override |
| public ConstraintWithTarget inliningConstraint( |
| InliningConstraints inliningConstraints, |
| DexType invocationContext) { |
| return inliningConstraints.forNewArrayEmpty(type, invocationContext); |
| } |
| } |