1 /* 2 * Copyright 2018, Google LLC 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google LLC nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 package com.android.tools.smali.dexlib2.immutable.reference; 32 33 import com.android.tools.smali.dexlib2.MethodHandleType; 34 import com.android.tools.smali.util.ExceptionWithContext; 35 import com.android.tools.smali.dexlib2.base.reference.BaseMethodHandleReference; 36 import com.android.tools.smali.dexlib2.iface.reference.FieldReference; 37 import com.android.tools.smali.dexlib2.iface.reference.MethodHandleReference; 38 import com.android.tools.smali.dexlib2.iface.reference.MethodReference; 39 import com.android.tools.smali.dexlib2.iface.reference.Reference; 40 41 import javax.annotation.Nonnull; 42 43 public class ImmutableMethodHandleReference extends BaseMethodHandleReference implements ImmutableReference { 44 protected final int methodHandleType; 45 @Nonnull protected final ImmutableReference memberReference; 46 ImmutableMethodHandleReference(int methodHandleType, @Nonnull ImmutableReference memberReference)47 public ImmutableMethodHandleReference(int methodHandleType, @Nonnull ImmutableReference memberReference) { 48 this.methodHandleType = methodHandleType; 49 this.memberReference = memberReference; 50 } 51 ImmutableMethodHandleReference(int methodHandleType, @Nonnull Reference memberReference)52 public ImmutableMethodHandleReference(int methodHandleType, @Nonnull Reference memberReference) { 53 this.methodHandleType = methodHandleType; 54 this.memberReference = ImmutableReferenceFactory.of(memberReference); 55 } 56 57 @Nonnull of(@onnull MethodHandleReference methodHandleReference)58 public static ImmutableMethodHandleReference of(@Nonnull MethodHandleReference methodHandleReference) { 59 if (methodHandleReference instanceof ImmutableMethodHandleReference) { 60 return (ImmutableMethodHandleReference) methodHandleReference; 61 } 62 int methodHandleType = methodHandleReference.getMethodHandleType(); 63 ImmutableReference memberReference; 64 65 switch (methodHandleType) { 66 case MethodHandleType.STATIC_PUT: 67 case MethodHandleType.STATIC_GET: 68 case MethodHandleType.INSTANCE_PUT: 69 case MethodHandleType.INSTANCE_GET: 70 memberReference = ImmutableFieldReference.of( 71 (FieldReference) methodHandleReference.getMemberReference()); 72 break; 73 case MethodHandleType.INVOKE_STATIC: 74 case MethodHandleType.INVOKE_INSTANCE: 75 case MethodHandleType.INVOKE_CONSTRUCTOR: 76 case MethodHandleType.INVOKE_DIRECT: 77 case MethodHandleType.INVOKE_INTERFACE: 78 memberReference = ImmutableMethodReference.of( 79 (MethodReference) methodHandleReference.getMemberReference()); 80 break; 81 default: 82 throw new ExceptionWithContext("Invalid method handle type: %d", methodHandleType); 83 } 84 return new ImmutableMethodHandleReference(methodHandleType, memberReference); 85 } 86 getMethodHandleType()87 @Override public int getMethodHandleType() { return methodHandleType; } getMemberReference()88 @Nonnull @Override public Reference getMemberReference() { return memberReference; } 89 } 90