org.neo4j.cypher.internal.expressions.Variable.scala Maven / Gradle / Ivy
/*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [https://neo4j.com]
*
* 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.neo4j.cypher.internal.expressions
import org.neo4j.cypher.internal.util.InputPosition
case class Variable(name: String)(val position: InputPosition) extends LogicalVariable {
override def copyId: Variable = copy()(position)
override def withPosition(position: InputPosition): LogicalVariable = copy()(position = position)
override def renameId(newName: String): Variable = copy(name = newName)(position)
override def asCanonicalStringVal: String = name
}
object Variable {
implicit val byName: Ordering[Variable] =
Ordering.by { (variable: Variable) =>
(variable.name, variable.position)
}(Ordering.Tuple2(implicitly[Ordering[String]], InputPosition.byOffset))
}
object UnPositionedVariable {
def varFor(name: String): LogicalVariable = Variable(name)(InputPosition.NONE)
}