com.hazelcast.org.apache.calcite.linq4j.tree.FieldDeclaration Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you 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.hazelcast.org.apache.calcite.linq4j.tree;
import com.hazelcast.org.checkerframework.checker.nullness.qual.Nullable;
import java.lang.reflect.Modifier;
import java.util.Objects;
/**
* Declaration of a field.
*/
public class FieldDeclaration extends MemberDeclaration {
public final int modifier;
public final ParameterExpression parameter;
public final @Nullable Expression initializer;
public FieldDeclaration(int modifier, ParameterExpression parameter,
@Nullable Expression initializer) {
assert parameter != null : "parameter should not be null";
this.modifier = modifier;
this.parameter = parameter;
this.initializer = initializer;
}
@Override public MemberDeclaration accept(Shuttle shuttle) {
shuttle = shuttle.preVisit(this);
// do not visit parameter - visit may not return a ParameterExpression
final Expression initializer =
this.initializer == null ? null : this.initializer.accept(shuttle);
return shuttle.visit(this, initializer);
}
@Override public R accept(Visitor visitor) {
return visitor.visit(this);
}
@Override public void accept(ExpressionWriter writer) {
String modifiers = Modifier.toString(modifier);
writer.append(modifiers);
if (!modifiers.isEmpty()) {
writer.append(' ');
}
writer.append(parameter.type).append(' ').append(parameter.name);
if (initializer != null) {
writer.append(" = ").append(initializer);
}
writer.append(';');
writer.newlineAndIndent();
}
@Override public boolean equals(@Nullable Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
FieldDeclaration that = (FieldDeclaration) o;
if (modifier != that.modifier) {
return false;
}
if (initializer != null ? !initializer.equals(that.initializer) : that
.initializer != null) {
return false;
}
if (!parameter.equals(that.parameter)) {
return false;
}
return true;
}
@Override public int hashCode() {
return Objects.hash(modifier, parameter, initializer);
}
}
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