@finos/legend-graph/src/graph/metamodel/pure/valueSpecification/VariableExpression.ts

Legend graph and graph manager

/**
 * Copyright (c) 2020-present, Goldman Sachs
 *
 * 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.
 */

import { type Hashable, hashArray } from '@finos/legend-shared';
import { CORE_HASH_STRUCTURE } from '../../../Core_HashUtils.js';
import type { GenericTypeReference } from '../packageableElements/domain/GenericTypeReference.js';
import type { Multiplicity } from '../packageableElements/domain/Multiplicity.js';
import {
  type ValueSpecificationVisitor,
  ValueSpecification,
} from './ValueSpecification.js';

export class VariableExpression extends ValueSpecification implements Hashable {
  name: string;

  constructor(
    name: string,
    multiplicity: Multiplicity,
    genericType?: GenericTypeReference | undefined,
  ) {
    super(multiplicity, genericType);
    this.name = name;
  }

  get hashCode(): string {
    return hashArray([
      CORE_HASH_STRUCTURE.VARIABLE_EXPRESSION,
      this.name,
      this.multiplicity,
      this.genericType?.ownerReference.valueForSerialization ?? '',
    ]);
  }

  accept_ValueSpecificationVisitor<T>(
    visitor: ValueSpecificationVisitor<T>,
  ): T {
    return visitor.visit_VariableExpression(this);
  }
}