@dillonkearns/elm-graphql/examples/src/subscription/node_modules/flow-static-land/lib/PIso.js

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'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.modify = modify;
exports.composeIso = composeIso;
exports.asLens = asLens;
exports.asPrism = asPrism;

var _Either = require('./Either');

var either = _interopRequireWildcard(_Either);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function modify(iso, f, s) {
  return iso.reverseGet(f(iso.get(s)));
}

function composeIso(abcd, stab) {
  return {
    get: function get(s) {
      return abcd.get(stab.get(s));
    },
    reverseGet: function reverseGet(d) {
      return stab.reverseGet(abcd.reverseGet(d));
    }
  };
}

function asLens(iso) {
  return {
    get: iso.get,
    set: iso.reverseGet
  };
}

function asPrism(iso) {
  return {
    getOrModify: function getOrModify(s) {
      return either.right(iso.get(s));
    },

    reverseGet: iso.reverseGet
  };
}