/*
* 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.expression;
import com.facebook.presto.byteCode.Block;
import com.facebook.presto.byteCode.ByteCodeNode;
import com.facebook.presto.byteCode.ParameterizedType;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
import java.util.List;
import static com.google.common.base.Preconditions.checkNotNull;
class NewInstanceByteCodeExpression
extends ByteCodeExpression
{
private final List<ByteCodeExpression> parameters;
private final ImmutableList<ParameterizedType> parameterTypes;
public NewInstanceByteCodeExpression(
ParameterizedType type,
Iterable<ParameterizedType> parameterTypes,
Iterable<? extends ByteCodeExpression> parameters)
{
super(type);
this.parameterTypes = ImmutableList.copyOf(checkNotNull(parameterTypes, "parameterTypes is null"));
this.parameters = ImmutableList.copyOf(checkNotNull(parameters, "parameters is null"));
}
@Override
public ByteCodeNode getByteCode()
{
Block block = new Block(null)
.newObject(getType())
.dup();
for (ByteCodeExpression parameter : parameters) {
block.append(parameter);
}
return block.invokeConstructor(getType(), parameterTypes);
}
@Override
protected String formatOneLine()
{
return "new " + getType().getSimpleName() + "(" + Joiner.on(", ").join(parameters) + ")";
}
@Override
public List<ByteCodeNode> getChildNodes()
{
return ImmutableList.<ByteCodeNode>copyOf(parameters);
}
}