| // Copyright (c) 2019, 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.analysis.value; |
| |
| import com.android.tools.r8.graph.AppInfoWithSubtyping; |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.DebugLocalInfo; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.ir.analysis.type.TypeLatticeElement; |
| import com.android.tools.r8.ir.code.ConstNumber; |
| import com.android.tools.r8.ir.code.IRCode; |
| import com.android.tools.r8.ir.code.Instruction; |
| import com.android.tools.r8.ir.code.TypeAndLocalInfoSupplier; |
| import com.android.tools.r8.ir.code.Value; |
| |
| public class SingleNumberValue extends SingleValue { |
| |
| private final long value; |
| |
| /** Intentionally package private, use {@link AbstractValueFactory} instead. */ |
| SingleNumberValue(long value) { |
| this.value = value; |
| } |
| |
| @Override |
| public boolean isSingleNumberValue() { |
| return true; |
| } |
| |
| @Override |
| public SingleNumberValue asSingleNumberValue() { |
| return this; |
| } |
| |
| public boolean getBooleanValue() { |
| assert value == 0 || value == 1; |
| return value != 0; |
| } |
| |
| public long getValue() { |
| return value; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| return this == o; |
| } |
| |
| @Override |
| public int hashCode() { |
| return System.identityHashCode(this); |
| } |
| |
| @Override |
| public String toString() { |
| return "SingleNumberValue(" + value + ")"; |
| } |
| |
| @Override |
| public Instruction createMaterializingInstruction( |
| AppView<? extends AppInfoWithSubtyping> appView, IRCode code, TypeAndLocalInfoSupplier info) { |
| TypeLatticeElement typeLattice = info.getTypeLattice(); |
| DebugLocalInfo debugLocalInfo = info.getLocalInfo(); |
| assert !typeLattice.isReference() || value == 0; |
| Value returnedValue = |
| code.createValue( |
| typeLattice.isReference() ? TypeLatticeElement.NULL : typeLattice, debugLocalInfo); |
| return new ConstNumber(returnedValue, value); |
| } |
| |
| @Override |
| public boolean isMaterializableInContext(AppView<?> appView, DexType context) { |
| return true; |
| } |
| } |