return function (_982) {
if (_982 instanceof Data_Maybe.Just && _982.value0 instanceof Undo) {
return Data_Maybe.fromMaybe(_981)(Prelude[">>="](Data_Maybe.bindMaybe)(pop(_981.value0))(function (_53) {
return Prelude["return"](Data_Maybe.monadMaybe)(new UndoRedoState(_53.value1, _53.value0, new Push(_981.value1, _981.value2)));
}));
};
if (_982 instanceof Data_Maybe.Just && _982.value0 instanceof Redo) {
return Data_Maybe.fromMaybe(_981)(Prelude[">>="](Data_Maybe.bindMaybe)(pop(_981.value2))(function (_54) {
return Prelude["return"](Data_Maybe.monadMaybe)(new UndoRedoState(new Push(_981.value1, _981.value0), _54.value0, _54.value1));
}));
};
if (_982 instanceof Data_Maybe.Nothing) {
return new UndoRedoState(new Push(_981.value1, _981.value0), f(_981.value1)(i), Empty.value);
};
throw new Error("Failed pattern match");
};
return function (_53) {
return Prelude["=="](Data_Maybe.eqMaybe(__dict_Eq_2))(_52)(_53);
};
return function (_55) {
return Prelude["/="](Data_Maybe.eqMaybe(__dict_Eq_2))(_54)(_55);
};
return new Prelude.Show(function (_58) {
return "First (" + (Prelude.show(Data_Maybe.showMaybe(__dict_Show_0))(_58) + ")");
});
return function (_165) {
return Prelude.compare(Data_Maybe.ordMaybe(__dict_Ord_1))(_164)(_165);
};
return function (_161) {
return Prelude["=="](Data_Maybe.eqMaybe(__dict_Eq_2))(_160)(_161);
};
var eqNullable = function (__dict_Eq_2) {
return new Prelude.Eq(Data_Function.on(Prelude["/="](Data_Maybe.eqMaybe(__dict_Eq_2)))(toMaybe), Data_Function.on(Prelude["=="](Data_Maybe.eqMaybe(__dict_Eq_2)))(toMaybe));
};
continue tco;
};
throw new Error("Failed pattern match");
};
};
};
return go(xs)(ys);
};
};
};
/**
* | Filter an array of optional values, keeping only the elements which contain
* | a value, creating a new array.
*/
var catMaybes = concatMap(Data_Maybe.maybe([ ])(singleton));
var monadArray = new Prelude.Monad(function () {
return applicativeArray;
}, function () {
return bindArray;
});
var bindArray = new Prelude.Bind(Prelude.flip(concatMap), function () {
return applyArray;
});
var applyArray = new Prelude.Apply(Prelude.ap(monadArray), function () {
return functorArray;
});
var applicativeArray = new Prelude.Applicative(function () {
return applyArray;
}, singleton);
var altArray = new Control_Alt.Alt(append, function () {
return new Monoid(function () {
return Data_Maybe.semigroupMaybe(__dict_Semigroup_0);
}, Data_Maybe.Nothing.value);
var boundedFirst = function (dictBounded) {
return new Prelude.Bounded(Prelude.bottom(Data_Maybe.boundedMaybe(dictBounded)), Prelude.top(Data_Maybe.boundedMaybe(dictBounded)));
};
return function (v1) {
return Prelude.compare(Data_Maybe.ordMaybe(dictOrd))(v)(v1);
};
return function (v1) {
return Prelude["=="](Data_Maybe.eqMaybe(dictEq))(v)(v1);
};
return new Prelude.Show(function (v) {
return "First (" + (Prelude.show(Data_Maybe.showMaybe(dictShow))(v) + ")");
});
var ordNullable = function (__dict_Ord_1) {
return new Prelude.Ord(function () {
return eqNullable(__dict_Ord_1["__superclass_Prelude.Eq_0"]());
}, Data_Function.on(Prelude.compare(Data_Maybe.ordMaybe(__dict_Ord_1)))(toMaybe));
};
return function (_57) {
return Prelude.compare(Data_Maybe.ordMaybe(__dict_Ord_1))(_56)(_57);
};
return new Prelude.Show(function (_170) {
return "Last (" + (Prelude.show(Data_Maybe.showMaybe(__dict_Show_0))(_170) + ")");
});
return function (_163) {
return Prelude["/="](Data_Maybe.eqMaybe(__dict_Eq_2))(_162)(_163);
};
var mapMaybe = function (f) {
return concatMap(Prelude["<<<"](Prelude.semigroupoidArr)(Data_Maybe.maybe([ ])(singleton))(f));
};
// Generated by psc-make version 0.6.8
"use strict";
var Data_Maybe = require("Data.Maybe");
var Data_Function = require("Data.Function");
var Prelude = require("Prelude");
var $$null = null;
function nullable(a, r, f) { return a === null || typeof a === 'undefined' ? r : f(a);};
function notNull(x) { return x;};
var toNullable = Data_Maybe.maybe($$null)(notNull);
var toMaybe = function (n) {
return nullable(n, Data_Maybe.Nothing.value, Data_Maybe.Just.create);
};
var showNullable = function (__dict_Show_0) {
return new Prelude.Show(function (n) {
var _1864 = toMaybe(n);
if (_1864 instanceof Data_Maybe.Nothing) {
return "null";
};
if (_1864 instanceof Data_Maybe.Just) {
return Prelude.show(__dict_Show_0)(_1864.value0);
};
throw new Error("Failed pattern match");
});
};
var eqNullable = function (__dict_Eq_2) {
return new Prelude.Eq(Data_Function.on(Prelude["/="](Data_Maybe.eqMaybe(__dict_Eq_2)))(toMaybe), Data_Function.on(Prelude["=="](Data_Maybe.eqMaybe(__dict_Eq_2)))(toMaybe));
};
var ordNullable = function (__dict_Ord_1) {
return new Prelude.Ord(function () {
return eqNullable(__dict_Ord_1["__superclass_Prelude.Eq_0"]());
}, Data_Function.on(Prelude.compare(Data_Maybe.ordMaybe(__dict_Ord_1)))(toMaybe));