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// Copyright (c) 2016, 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.graph.DexType;
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.ir.conversion.IRBuilder;
import com.android.tools.r8.ir.conversion.LensCodeRewriterUtils;
import java.nio.ShortBuffer;
public class InstanceOf extends Format22c<DexType> {
public static final int OPCODE = 0x20;
public static final String NAME = "InstanceOf";
public static final String SMALI_NAME = "instance-of";
InstanceOf(int high, BytecodeStream stream, OffsetToObjectMapping mapping) {
super(high, stream, mapping.getTypeMap());
}
public InstanceOf(int dest, int value, DexType type) {
super(dest, value, type);
}
@Override
public InstanceOf asInstanceOf() {
return this;
}
@Override
public boolean isInstanceOf() {
return true;
}
@Override
public String getName() {
return NAME;
}
@Override
public String getSmaliName() {
return SMALI_NAME;
}
@Override
public int getOpcode() {
return OPCODE;
}
@Override
public void collectIndexedItems(
IndexedItemCollection indexedItems,
ProgramMethod context,
GraphLens graphLens,
LensCodeRewriterUtils rewriter) {
DexType rewritten = graphLens.lookupType(getType());
rewritten.collectIndexedItems(indexedItems);
}
public DexType getType() {
return CCCC;
}
@Override
public void registerUse(UseRegistry registry) {
registry.registerInstanceOf(getType());
}
@Override
public void buildIR(IRBuilder builder) {
builder.addInstanceOf(A, B, getType());
}
@Override
public boolean canThrow() {
return true;
}
@Override
public void write(
ShortBuffer dest,
ProgramMethod context,
GraphLens graphLens,
ObjectToOffsetMapping mapping,
LensCodeRewriterUtils rewriter) {
DexType lookup = graphLens.lookupType(getType());
writeFirst(B, A, dest);
write16BitReference(lookup, dest, mapping);
}
}