1  "use strict";
 2  Object.defineProperty(exports, "__esModule", { value: true });
 3  exports.flatMapOptional = exports.mapOptional = exports.unsafeUnwrapOptional = exports.unwrapOptional = exports.isSome = exports.isNothing = exports.unsafeUninitialized = void 0;
 4  /**
 5   * Bypass the protection provided by the `Optional` type
 6   * and pretend to produce a value of `Some<T>` while
 7   * actually returning `Nothing`.
 8   */
 9  function unsafeUninitialized() {
10      return undefined;
11  }
12  exports.unsafeUninitialized = unsafeUninitialized;
13  /**
14   * Test whether an optional does not contain a value.
15   *
16   * @param value - An optional value to test.
17   */
18  function isNothing(value) {
19      return value === undefined || value === null;
20  }
21  exports.isNothing = isNothing;
22  /**
23   * Test whether an optional contains a value.
24   * @param value - An optional value to test.
25   */
26  function isSome(value) {
27      return value !== undefined && value !== null;
28  }
29  exports.isSome = isSome;
30  /**
31   * Unwrap the value contained in a given optional,
32   * throwing an error if there is no value.
33   *
34   * @param value - A value to unwrap.
35   */
36  function unwrapOptional(value) {
37      if (isNothing(value)) {
38          throw new ReferenceError();
39      }
40      return value;
41  }
42  exports.unwrapOptional = unwrapOptional;
43  /**
44   * Unwrap the value contained in a given optional
45   * without checking if the value exists.
46   *
47   * @param value - A value to unwrap.
48   */
49  function unsafeUnwrapOptional(value) {
50      return value;
51  }
52  exports.unsafeUnwrapOptional = unsafeUnwrapOptional;
53  function mapOptional(value, body) {
54      if (isSome(value)) {
55          return body(value);
56      }
57      else {
58          return value;
59      }
60  }
61  exports.mapOptional = mapOptional;
62  function flatMapOptional(value, body) {
63      if (isSome(value)) {
64          return body(value);
65      }
66      else {
67          return value;
68      }
69  }
70  exports.flatMapOptional = flatMapOptional;
71  //# sourceMappingURL=optional.js.map