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/*
 * 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.sql.validate;

import com.hazelcast.org.apache.calcite.sql.SqlCall;
import com.hazelcast.org.apache.calcite.sql.SqlNode;

import com.hazelcast.org.checkerframework.checker.nullness.qual.Nullable;

/**
 * The name-resolution context for expression inside a multiset call. The
 * objects visible are multiset expressions, and those inherited from the parent
 * scope.
 *
 * @see CollectNamespace
 */
class CollectScope extends ListScope {
  //~ Instance fields --------------------------------------------------------

  @SuppressWarnings("unused")
  private final @Nullable SqlValidatorScope usingScope;
  private final SqlCall child;

  //~ Constructors -----------------------------------------------------------

  CollectScope(
      SqlValidatorScope parent,
      @Nullable SqlValidatorScope usingScope,
      SqlCall child) {
    super(parent);
    this.usingScope = usingScope;
    this.child = child;
  }

  //~ Methods ----------------------------------------------------------------

  @Override public SqlNode getNode() {
    return child;
  }
}




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