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var R = require('../../source');

function Pair(left, right) {  return {    '@@type': 'ramda/Pair',    'fantasy-land/equals': function equals(pair) {      return pair != null        && pair['@@type'] === this['@@type']        && R.equals(left, pair.left)        && R.equals(right, pair.right);    },    'fantasy-land/concat': function concat(pair) {      return Pair(R.concat(left, pair.left), R.concat(right, pair.right));    },    'fantasy-land/map': function map(f) { return Pair(left, f(right)); },    'fantasy-land/ap': function ap(pair) {      return Pair(R.concat(left, pair.left), right(pair.right));    },    'fantasy-land/reduce': function reduce(f, x) { return f(x, right); },    'fantasy-land/traverse': function traverse(of, f) {      return R.map(        function(x) { return Pair(left, x); },        of(f(right))      );    },    'fantasy-land/chain': function chain(f) {      var pair = f(right);      return Pair(R.concat(left, pair.left), pair.right);    },    'fantasy-land/bimap': function bimap(f, g) { return Pair(f(left), g(right)); },    'fantasy-land/promap': function promap(f, g) {      return Pair(R.promap(f, g, left), R.promap(f, g, right));    },    merge: function merge(f) { return f(left, right); },    toString: function toString() {      return `Pair(${R.toString(left)}, ${R.toString(right)})`;    },    toArray: function toArray() { return [left, right]; },    left: left,    right: right  };}
module.exports = Pair;