@backland/schema/lib/fields/NullField.js

TypeScript schema declaration and validation library with static type inference

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.NullField = void 0;
var _utils = require("@backland/utils");
var _FieldType = require("./FieldType");
class NullField extends _FieldType.FieldType {
  constructor() {
    super({
      def: undefined,
      name: 'null'
    });
    this.parse = this.applyParser({
      parse(input) {
        (0, _utils.expectedType)({
          value: input
        }, 'null');
        return input;
      },
      preParse(input) {
        if (input === undefined) return null;
        return input;
      }
    });
  }
  static create = () => {
    return new NullField();
  };
}
exports.NullField = NullField;
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