com.facebook.presto.bytecode.control.CaseStatement Maven / Gradle / Ivy
/*
* 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 com.facebook.presto.bytecode.control;
import com.facebook.presto.bytecode.BytecodeNode;
import com.facebook.presto.bytecode.instruction.LabelNode;
import javax.annotation.concurrent.Immutable;
import java.util.Objects;
import static com.google.common.base.MoreObjects.toStringHelper;
import static java.util.Objects.requireNonNull;
@Immutable
public class CaseStatement
implements Comparable
{
private final int key;
private final BytecodeNode body;
private final LabelNode label;
CaseStatement(int key, BytecodeNode body, LabelNode label)
{
this.key = key;
this.body = requireNonNull(body, "body is null");
this.label = requireNonNull(label, "label is null");
}
public int getKey()
{
return key;
}
public BytecodeNode getBody()
{
return body;
}
public LabelNode getLabel()
{
return label;
}
@Override
public int compareTo(CaseStatement o)
{
return Integer.compare(key, o.key);
}
@Override
public int hashCode()
{
return key;
}
@Override
public boolean equals(Object obj)
{
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
CaseStatement other = (CaseStatement) obj;
return Objects.equals(this.key, other.key);
}
@Override
public String toString()
{
return toStringHelper(this)
.add("key", key)
.toString();
}
}