@sap/odata-v4/lib/uri/Expression.js

OData V4.0 server library

'use strict';

/**
 * @abstract
 * @hideconstructor
 */
class Expression {

    /**
     * Create an instance of Expression.
     * This constructor is not intended to be called directly.  It is used in derived classes.
     * @param {Expression.ExpressionKind} kind kind of expression
     * @protected
     */
    constructor(kind) {
        /**
         * @type {Expression.ExpressionKind}
         * @private
         */
        this._kind = kind;
    }

    /**
     * Return the expression kind.
     * @returns {Expression.ExpressionKind} the expression kind
     */
    getKind() {
        return this._kind;
    }
}

/**
 * Defined kinds of expressions.
 * @enum {number}
 * @readonly
 */
Expression.ExpressionKind = {
    ALIAS: 0,
    BINARY: 1,
    LITERAL: 2,
    MEMBER: 3,
    METHOD: 4,
    TYPE_LITERAL: 5,
    UNARY: 6
};

module.exports = Expression;