From d283b243371ec5e440fb05e9689944b5340663fe Mon Sep 17 00:00:00 2001
From: spacejack <spacejack@gmail.com>
Date: Mon, 19 Feb 2018 16:28:28 -0500
Subject: [PATCH 1/2] Separate Promise implementation from polyfilling

---
 docs/change-log.md            |  7 +++
 docs/promise.md               |  2 +
 index.js                      |  1 +
 promise/polyfill.js           | 98 +++++++++++++++++++++++++++++++++++
 promise/promise.js            | 95 +--------------------------------
 promise/tests/test-promise.js |  2 +-
 6 files changed, 110 insertions(+), 95 deletions(-)
 create mode 100644 promise/polyfill.js

diff --git a/docs/change-log.md b/docs/change-log.md
index 5df143f6..f49329ec 100644
--- a/docs/change-log.md
+++ b/docs/change-log.md
@@ -47,6 +47,13 @@
 
 ---
 
+### v1.1.7
+
+- Promise polyfill implementation separated from polyfilling logic.
+- `PromisePolyfill` is now available on the exported/global `m`.
+
+---
+
 ### v1.1.6
 
 - core: render() function can no longer prevent from changing `document.activeElement` in lifecycle hooks ([#1988](https://github.com/MithrilJS/mithril.js/pull/1988), [@purplecode](https://github.com/purplecode))
diff --git a/docs/promise.md b/docs/promise.md
index 8091c2e2..dc93f92d 100644
--- a/docs/promise.md
+++ b/docs/promise.md
@@ -26,6 +26,8 @@ A [ES6 Promise](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/G
 
 A Promise is a mechanism for working with asynchronous computations.
 
+Mithril provides a polyfill when the environment does not support Promises. The polyfill can also be referenced specifically via `m.PromisePolyfill`.
+
 ---
 
 ### Signature
diff --git a/index.js b/index.js
index 6e69cea4..123ba4ca 100644
--- a/index.js
+++ b/index.js
@@ -17,5 +17,6 @@ m.parseQueryString = require("./querystring/parse")
 m.buildQueryString = require("./querystring/build")
 m.version = "bleeding-edge"
 m.vnode = require("./render/vnode")
+m.PromisePolyfill = require("./promise/polyfill")
 
 module.exports = m
diff --git a/promise/polyfill.js b/promise/polyfill.js
new file mode 100644
index 00000000..4d990dcd
--- /dev/null
+++ b/promise/polyfill.js
@@ -0,0 +1,98 @@
+"use strict"
+/** @constructor */
+var PromisePolyfill = function(executor) {
+	if (!(this instanceof PromisePolyfill)) throw new Error("Promise must be called with `new`")
+	if (typeof executor !== "function") throw new TypeError("executor must be a function")
+
+	var self = this, resolvers = [], rejectors = [], resolveCurrent = handler(resolvers, true), rejectCurrent = handler(rejectors, false)
+	var instance = self._instance = {resolvers: resolvers, rejectors: rejectors}
+	var callAsync = typeof setImmediate === "function" ? setImmediate : setTimeout
+	function handler(list, shouldAbsorb) {
+		return function execute(value) {
+			var then
+			try {
+				if (shouldAbsorb && value != null && (typeof value === "object" || typeof value === "function") && typeof (then = value.then) === "function") {
+					if (value === self) throw new TypeError("Promise can't be resolved w/ itself")
+					executeOnce(then.bind(value))
+				}
+				else {
+					callAsync(function() {
+						if (!shouldAbsorb && list.length === 0) console.error("Possible unhandled promise rejection:", value)
+						for (var i = 0; i < list.length; i++) list[i](value)
+						resolvers.length = 0, rejectors.length = 0
+						instance.state = shouldAbsorb
+						instance.retry = function() {execute(value)}
+					})
+				}
+			}
+			catch (e) {
+				rejectCurrent(e)
+			}
+		}
+	}
+	function executeOnce(then) {
+		var runs = 0
+		function run(fn) {
+			return function(value) {
+				if (runs++ > 0) return
+				fn(value)
+			}
+		}
+		var onerror = run(rejectCurrent)
+		try {then(run(resolveCurrent), onerror)} catch (e) {onerror(e)}
+	}
+
+	executeOnce(executor)
+}
+PromisePolyfill.prototype.then = function(onFulfilled, onRejection) {
+	var self = this, instance = self._instance
+	function handle(callback, list, next, state) {
+		list.push(function(value) {
+			if (typeof callback !== "function") next(value)
+			else try {resolveNext(callback(value))} catch (e) {if (rejectNext) rejectNext(e)}
+		})
+		if (typeof instance.retry === "function" && state === instance.state) instance.retry()
+	}
+	var resolveNext, rejectNext
+	var promise = new PromisePolyfill(function(resolve, reject) {resolveNext = resolve, rejectNext = reject})
+	handle(onFulfilled, instance.resolvers, resolveNext, true), handle(onRejection, instance.rejectors, rejectNext, false)
+	return promise
+}
+PromisePolyfill.prototype.catch = function(onRejection) {
+	return this.then(null, onRejection)
+}
+PromisePolyfill.resolve = function(value) {
+	if (value instanceof PromisePolyfill) return value
+	return new PromisePolyfill(function(resolve) {resolve(value)})
+}
+PromisePolyfill.reject = function(value) {
+	return new PromisePolyfill(function(resolve, reject) {reject(value)})
+}
+PromisePolyfill.all = function(list) {
+	return new PromisePolyfill(function(resolve, reject) {
+		var total = list.length, count = 0, values = []
+		if (list.length === 0) resolve([])
+		else for (var i = 0; i < list.length; i++) {
+			(function(i) {
+				function consume(value) {
+					count++
+					values[i] = value
+					if (count === total) resolve(values)
+				}
+				if (list[i] != null && (typeof list[i] === "object" || typeof list[i] === "function") && typeof list[i].then === "function") {
+					list[i].then(consume, reject)
+				}
+				else consume(list[i])
+			})(i)
+		}
+	})
+}
+PromisePolyfill.race = function(list) {
+	return new PromisePolyfill(function(resolve, reject) {
+		for (var i = 0; i < list.length; i++) {
+			list[i].then(resolve, reject)
+		}
+	})
+}
+
+module.exports = PromisePolyfill
diff --git a/promise/promise.js b/promise/promise.js
index 53aefecc..1f19bc33 100644
--- a/promise/promise.js
+++ b/promise/promise.js
@@ -1,99 +1,6 @@
 "use strict"
-/** @constructor */
-var PromisePolyfill = function(executor) {
-	if (!(this instanceof PromisePolyfill)) throw new Error("Promise must be called with `new`")
-	if (typeof executor !== "function") throw new TypeError("executor must be a function")
 
-	var self = this, resolvers = [], rejectors = [], resolveCurrent = handler(resolvers, true), rejectCurrent = handler(rejectors, false)
-	var instance = self._instance = {resolvers: resolvers, rejectors: rejectors}
-	var callAsync = typeof setImmediate === "function" ? setImmediate : setTimeout
-	function handler(list, shouldAbsorb) {
-		return function execute(value) {
-			var then
-			try {
-				if (shouldAbsorb && value != null && (typeof value === "object" || typeof value === "function") && typeof (then = value.then) === "function") {
-					if (value === self) throw new TypeError("Promise can't be resolved w/ itself")
-					executeOnce(then.bind(value))
-				}
-				else {
-					callAsync(function() {
-						if (!shouldAbsorb && list.length === 0) console.error("Possible unhandled promise rejection:", value)
-						for (var i = 0; i < list.length; i++) list[i](value)
-						resolvers.length = 0, rejectors.length = 0
-						instance.state = shouldAbsorb
-						instance.retry = function() {execute(value)}
-					})
-				}
-			}
-			catch (e) {
-				rejectCurrent(e)
-			}
-		}
-	}
-	function executeOnce(then) {
-		var runs = 0
-		function run(fn) {
-			return function(value) {
-				if (runs++ > 0) return
-				fn(value)
-			}
-		}
-		var onerror = run(rejectCurrent)
-		try {then(run(resolveCurrent), onerror)} catch (e) {onerror(e)}
-	}
-
-	executeOnce(executor)
-}
-PromisePolyfill.prototype.then = function(onFulfilled, onRejection) {
-	var self = this, instance = self._instance
-	function handle(callback, list, next, state) {
-		list.push(function(value) {
-			if (typeof callback !== "function") next(value)
-			else try {resolveNext(callback(value))} catch (e) {if (rejectNext) rejectNext(e)}
-		})
-		if (typeof instance.retry === "function" && state === instance.state) instance.retry()
-	}
-	var resolveNext, rejectNext
-	var promise = new PromisePolyfill(function(resolve, reject) {resolveNext = resolve, rejectNext = reject})
-	handle(onFulfilled, instance.resolvers, resolveNext, true), handle(onRejection, instance.rejectors, rejectNext, false)
-	return promise
-}
-PromisePolyfill.prototype.catch = function(onRejection) {
-	return this.then(null, onRejection)
-}
-PromisePolyfill.resolve = function(value) {
-	if (value instanceof PromisePolyfill) return value
-	return new PromisePolyfill(function(resolve) {resolve(value)})
-}
-PromisePolyfill.reject = function(value) {
-	return new PromisePolyfill(function(resolve, reject) {reject(value)})
-}
-PromisePolyfill.all = function(list) {
-	return new PromisePolyfill(function(resolve, reject) {
-		var total = list.length, count = 0, values = []
-		if (list.length === 0) resolve([])
-		else for (var i = 0; i < list.length; i++) {
-			(function(i) {
-				function consume(value) {
-					count++
-					values[i] = value
-					if (count === total) resolve(values)
-				}
-				if (list[i] != null && (typeof list[i] === "object" || typeof list[i] === "function") && typeof list[i].then === "function") {
-					list[i].then(consume, reject)
-				}
-				else consume(list[i])
-			})(i)
-		}
-	})
-}
-PromisePolyfill.race = function(list) {
-	return new PromisePolyfill(function(resolve, reject) {
-		for (var i = 0; i < list.length; i++) {
-			list[i].then(resolve, reject)
-		}
-	})
-}
+var PromisePolyfill = require("./polyfill")
 
 if (typeof window !== "undefined") {
 	if (typeof window.Promise === "undefined") window.Promise = PromisePolyfill
diff --git a/promise/tests/test-promise.js b/promise/tests/test-promise.js
index e368165c..2905d694 100644
--- a/promise/tests/test-promise.js
+++ b/promise/tests/test-promise.js
@@ -2,7 +2,7 @@
 
 var o = require("../../ospec/ospec")
 var callAsync = require("../../test-utils/callAsync")
-var Promise = require("../../promise/promise")
+var Promise = require("../../promise/polyfill")
 
 o.spec("promise", function() {
 	o.spec("constructor", function() {

From 560eade284a16d58cd28cb0b3572e5e35446bd9f Mon Sep 17 00:00:00 2001
From: Gandalf-the-Bot <gandalfthebot@py.gy>
Date: Mon, 19 Feb 2018 22:35:24 +0000
Subject: [PATCH 2/2] Bundled output for commit
 d283b243371ec5e440fb05e9689944b5340663fe [skip ci]

---
 README.md      |  2 +-
 mithril.js     | 21 +++++++------
 mithril.min.js | 84 +++++++++++++++++++++++++-------------------------
 3 files changed, 54 insertions(+), 53 deletions(-)

diff --git a/README.md b/README.md
index 50a85a33..67391d79 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ mithril.js [![NPM Version](https://img.shields.io/npm/v/mithril.svg)](https://ww
 
 ## What is Mithril?
 
-A modern client-side Javascript framework for building Single Page Applications. It's small (<!-- size -->8.62 KB<!-- /size --> gzipped), fast and provides routing and XHR utilities out of the box.
+A modern client-side Javascript framework for building Single Page Applications. It's small (<!-- size -->8.63 KB<!-- /size --> gzipped), fast and provides routing and XHR utilities out of the box.
 
 Mithril is used by companies like Vimeo and Nike, and open source platforms like Lichess 👍.
 
diff --git a/mithril.js b/mithril.js
index 2bddf8de..1cf7bd5c 100644
--- a/mithril.js
+++ b/mithril.js
@@ -237,7 +237,7 @@ var buildQueryString = function(object) {
 	}
 }
 var FILE_PROTOCOL_REGEX = new RegExp("^file://", "i")
-var _8 = function($window, Promise) {
+var _9 = function($window, Promise) {
 	var callbackCount = 0
 	var oncompletion
 	function setCompletionCallback(callback) {oncompletion = callback}
@@ -386,7 +386,7 @@ var _8 = function($window, Promise) {
 	}
 	return {request: request, jsonp: jsonp, setCompletionCallback: setCompletionCallback}
 }
-var requestService = _8(window, PromisePolyfill)
+var requestService = _9(window, PromisePolyfill)
 var coreRenderer = function($window) {
 	var $doc = $window.document
 	var $emptyFragment = $doc.createDocumentFragment()
@@ -1188,7 +1188,7 @@ function throttle(callback) {
 		}
 	}
 }
-var _11 = function($window, throttleMock) {
+var _12 = function($window, throttleMock) {
 	var renderService = coreRenderer($window)
 	renderService.setEventCallback(function(e) {
 		if (e.redraw === false) e.redraw = undefined
@@ -1214,9 +1214,9 @@ var _11 = function($window, throttleMock) {
 	redraw.sync = sync
 	return {subscribe: subscribe, unsubscribe: unsubscribe, redraw: redraw, render: renderService.render}
 }
-var redrawService = _11(window)
+var redrawService = _12(window)
 requestService.setCompletionCallback(redrawService.redraw)
-var _16 = function(redrawService0) {
+var _17 = function(redrawService0) {
 	return function(root, component) {
 		if (component === null) {
 			redrawService0.render(root, [])
@@ -1233,7 +1233,7 @@ var _16 = function(redrawService0) {
 		run0()
 	}
 }
-m.mount = _16(redrawService)
+m.mount = _17(redrawService)
 var Promise = PromisePolyfill
 var parseQueryString = function(string) {
 	if (string === "" || string == null) return {}
@@ -1361,7 +1361,7 @@ var coreRouter = function($window) {
 	}
 	return router
 }
-var _20 = function($window, redrawService0) {
+var _21 = function($window, redrawService0) {
 	var routeService = coreRouter($window)
 	var identity = function(v) {return v}
 	var render1, component, attrs3, currentPath, lastUpdate
@@ -1429,14 +1429,14 @@ var _20 = function($window, redrawService0) {
 	}
 	return route
 }
-m.route = _20(window, redrawService)
+m.route = _21(window, redrawService)
 m.withAttr = function(attrName, callback, context) {
 	return function(e) {
 		callback.call(context || this, attrName in e.currentTarget ? e.currentTarget[attrName] : e.currentTarget.getAttribute(attrName))
 	}
 }
-var _28 = coreRenderer(window)
-m.render = _28.render
+var _29 = coreRenderer(window)
+m.render = _29.render
 m.redraw = redrawService.redraw
 m.request = requestService.request
 m.jsonp = requestService.jsonp
@@ -1444,6 +1444,7 @@ m.parseQueryString = parseQueryString
 m.buildQueryString = buildQueryString
 m.version = "1.1.3"
 m.vnode = Vnode
+m.PromisePolyfill = PromisePolyfill
 if (typeof module !== "undefined") module["exports"] = m
 else window.m = m
 }());
\ No newline at end of file
diff --git a/mithril.min.js b/mithril.min.js
index f08ea8cf..06d9a17a 100644
--- a/mithril.min.js
+++ b/mithril.min.js
@@ -1,46 +1,46 @@
-(function(){function t(a,d,e,h,p,l){return{tag:a,key:d,attrs:e,children:h,text:p,dom:l,domSize:void 0,state:void 0,events:void 0,instance:void 0,skip:!1}}function Q(a){for(var d in a)if(G.call(a,d))return!1;return!0}function x(a){var d=arguments[1],e=2;if(null==a||"string"!==typeof a&&"function"!==typeof a&&"function"!==typeof a.view)throw Error("The selector must be either a string or a component.");if("string"===typeof a){var h;if(!(h=R[a])){var p="div";for(var l=[],k={};h=V.exec(a);){var q=h[1],
-r=h[2];""===q&&""!==r?p=r:"#"===q?k.id=r:"."===q?l.push(r):"["===h[3][0]&&((q=h[6])&&(q=q.replace(/\\(["'])/g,"$1").replace(/\\\\/g,"\\")),"class"===h[4]?l.push(q):k[h[4]]=""===q?q:q||!0)}0<l.length&&(k.className=l.join(" "));h=R[a]={tag:p,attrs:k}}}if(null==d)d={};else if("object"!==typeof d||null!=d.tag||Array.isArray(d))d={},e=1;if(arguments.length===e+1)p=arguments[e],Array.isArray(p)||(p=[p]);else for(p=[];e<arguments.length;)p.push(arguments[e++]);e=t.normalizeChildren(p);if("string"===typeof a){p=
-!1;var m,u;l=d.className||d["class"];if(!Q(h.attrs)&&!Q(d)){k={};for(var b in d)G.call(d,b)&&(k[b]=d[b]);d=k}for(b in h.attrs)G.call(h.attrs,b)&&(d[b]=h.attrs[b]);void 0!==l&&(void 0!==d["class"]&&(d["class"]=void 0,d.className=l),null!=h.attrs.className&&(d.className=h.attrs.className+" "+l));for(b in d)if(G.call(d,b)&&"key"!==b){p=!0;break}Array.isArray(e)&&1===e.length&&null!=e[0]&&"#"===e[0].tag?u=e[0].children:m=e;return t(h.tag,d.key,p?d:void 0,m,u)}return t(a,d.key,d,e)}function W(a){var d=
-0,e=null,h="function"===typeof requestAnimationFrame?requestAnimationFrame:setTimeout;return function(){var p=Date.now()-d;null===e&&(e=h(function(){e=null;a();d=Date.now()},16-p))}}t.normalize=function(a){return Array.isArray(a)?t("[",void 0,void 0,t.normalizeChildren(a),void 0,void 0):null!=a&&"object"!==typeof a?t("#",void 0,void 0,!1===a?"":a,void 0,void 0):a};t.normalizeChildren=function(a){for(var d=0;d<a.length;d++)a[d]=t.normalize(a[d]);return a};var V=/(?:(^|#|\.)([^#\.\[\]]+))|(\[(.+?)(?:\s*=\s*("|'|)((?:\\["'\]]|.)*?)\5)?\])/g,
-R={},G={}.hasOwnProperty;x.trust=function(a){null==a&&(a="");return t("<",void 0,void 0,a,void 0,void 0)};x.fragment=function(a,d){return t("[",a.key,a,t.normalizeChildren(d),void 0,void 0)};var B=function(a){function d(a,b){return function y(d){var A;try{if(!b||null==d||"object"!==typeof d&&"function"!==typeof d||"function"!==typeof(A=d.then))m(function(){b||0!==a.length||console.error("Possible unhandled promise rejection:",d);for(var e=0;e<a.length;e++)a[e](d);p.length=0;l.length=0;r.state=b;r.retry=
-function(){y(d)}});else{if(d===h)throw new TypeError("Promise can't be resolved w/ itself");e(A.bind(d))}}catch(Y){q(Y)}}}function e(a){function b(b){return function(a){0<d++||b(a)}}var d=0,r=b(q);try{a(b(k),r)}catch(y){r(y)}}if(!(this instanceof B))throw Error("Promise must be called with `new`");if("function"!==typeof a)throw new TypeError("executor must be a function");var h=this,p=[],l=[],k=d(p,!0),q=d(l,!1),r=h._instance={resolvers:p,rejectors:l},m="function"===typeof setImmediate?setImmediate:
-setTimeout;e(a)};B.prototype.then=function(a,d){function e(a,d,e,k){d.push(function(b){if("function"!==typeof a)e(b);else try{p(a(b))}catch(C){l&&l(C)}});"function"===typeof h.retry&&k===h.state&&h.retry()}var h=this._instance,p,l,k=new B(function(a,d){p=a;l=d});e(a,h.resolvers,p,!0);e(d,h.rejectors,l,!1);return k};B.prototype["catch"]=function(a){return this.then(null,a)};B.resolve=function(a){return a instanceof B?a:new B(function(d){d(a)})};B.reject=function(a){return new B(function(d,e){e(a)})};
-B.all=function(a){return new B(function(d,e){var h=a.length,p=0,l=[];if(0===a.length)d([]);else for(var k=0;k<a.length;k++)(function(k){function r(a){p++;l[k]=a;p===h&&d(l)}null==a[k]||"object"!==typeof a[k]&&"function"!==typeof a[k]||"function"!==typeof a[k].then?r(a[k]):a[k].then(r,e)})(k)})};B.race=function(a){return new B(function(d,e){for(var h=0;h<a.length;h++)a[h].then(d,e)})};"undefined"!==typeof window?("undefined"===typeof window.Promise&&(window.Promise=B),B=window.Promise):"undefined"!==
-typeof global&&("undefined"===typeof global.Promise&&(global.Promise=B),B=global.Promise);var F=function(a){function d(a,h){if(Array.isArray(h))for(var k=0;k<h.length;k++)d(a+"["+k+"]",h[k]);else if("[object Object]"===Object.prototype.toString.call(h))for(k in h)d(a+"["+k+"]",h[k]);else e.push(encodeURIComponent(a)+(null!=h&&""!==h?"="+encodeURIComponent(h):""))}if("[object Object]"!==Object.prototype.toString.call(a))return"";var e=[],h;for(h in a)d(h,a[h]);return e.join("&")},Z=/^file:\/\//i,O=
-function(a,d){function e(){function b(){0===--a&&"function"===typeof u&&u()}var a=0;return function X(d){var e=d.then;d.then=function(){a++;var r=e.apply(d,arguments);r.then(b,function(d){b();if(0===a)throw d;});return X(r)};return d}}function h(b,a){if("string"===typeof b){var d=b;b=a||{};null==b.url&&(b.url=d)}return b}function p(b,a){if(null==a)return b;for(var d=b.match(/:[^\/]+/gi)||[],e=0;e<d.length;e++){var r=d[e].slice(1);null!=a[r]&&(b=b.replace(d[e],a[r]))}return b}function l(b,a){var d=
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