org.jetbrains.jet.codegen.optimization.boxing.BoxedBasicValue Maven / Gradle / Ivy
/*
* Copyright 2010-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.jet.codegen.optimization.boxing;
import com.intellij.openapi.util.Pair;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jet.codegen.AsmUtil;
import org.jetbrains.org.objectweb.asm.Type;
import org.jetbrains.org.objectweb.asm.tree.AbstractInsnNode;
import org.jetbrains.org.objectweb.asm.tree.analysis.BasicValue;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
public class BoxedBasicValue extends BasicValue {
private final Set associatedInsns = new HashSet();
private final Set> unboxingWithCastInsns = new HashSet>();
private final AbstractInsnNode boxingInsn;
private final Set associatedVariables = new HashSet();
private final Set mergedWith = new HashSet();
private final Type primitiveType;
private final ProgressionIteratorBasicValue progressionIterator;
private boolean isSafeToRemove = true;
public BoxedBasicValue(
@NotNull Type boxedType,
@NotNull AbstractInsnNode boxingInsn,
@Nullable ProgressionIteratorBasicValue progressionIterator
) {
super(boxedType);
this.primitiveType = AsmUtil.unboxType(boxedType);
this.boxingInsn = boxingInsn;
this.progressionIterator = progressionIterator;
}
@Override
public boolean equals(Object o) {
return this == o;
}
public boolean typeEquals(Object o) {
if (o == null || getClass() != o.getClass()) return false;
BoxedBasicValue that = (BoxedBasicValue) o;
return getType().equals(that.getType());
}
@Override
public int hashCode() {
return System.identityHashCode(this);
}
public List getAssociatedInsns() {
return new ArrayList(associatedInsns);
}
public void addInsn(AbstractInsnNode insnNode) {
associatedInsns.add(insnNode);
}
public void addVariableIndex(int index) {
associatedVariables.add(index);
}
public List getVariablesIndexes() {
return new ArrayList(associatedVariables);
}
public Type getPrimitiveType() {
return primitiveType;
}
public void addMergedWith(@NotNull BoxedBasicValue value) {
mergedWith.add(value);
}
@NotNull
public Iterable getMergedWith() {
return mergedWith;
}
public void markAsUnsafeToRemove() {
isSafeToRemove = false;
}
public boolean isSafeToRemove() {
return isSafeToRemove;
}
public boolean isDoubleSize() {
return getPrimitiveType().getSize() == 2;
}
@NotNull
public AbstractInsnNode getBoxingInsn() {
return boxingInsn;
}
public boolean isFromProgressionIterator() {
return progressionIterator != null;
}
@Nullable
public ProgressionIteratorBasicValue getProgressionIterator() {
return progressionIterator;
}
public void addUnboxingWithCastTo(@NotNull AbstractInsnNode insn, @NotNull Type type) {
unboxingWithCastInsns.add(Pair.create(insn, type));
}
@NotNull
public Set> getUnboxingWithCastInsns() {
return unboxingWithCastInsns;
}
}