elm-hot - npm Package Compare versions

Comparing version 1.1.0 to 1.1.1

package.json

 {
   "name": "elm-hot",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "description": "Hot code swapping for Elm",
@@ -5,0 +5,0 @@ "keywords": [

resources/hmr.js

@@ -46,2 +46,31 @@ //////////////////// HMR BEGIN ////////////////////
 
+        // Elm 0.19.1 introduced a '$' prefix at the beginning of the symbols it emits,
+        // and we check for `List.map` because we expect it to be present in all Elm programs.
+        var elmVersion;
+        if (typeof elm$core$List$map !== 'undefined')
+            elmVersion = '0.19.0';
+        else if (typeof $elm$core$List$map !== 'undefined')
+            elmVersion = '0.19.1';
+        else
+            throw new Error("Could not determine Elm version");
+
+        function elmSymbol(symbol) {
+            try {
+                switch (elmVersion) {
+                    case '0.19.0':
+                        return eval(symbol);
+                    case '0.19.1':
+                        return eval('$' + symbol);
+                    default:
+                        throw new Error('Cannot resolve ' + symbol + '. Elm version unknown!')
+                }
+            } catch (e) {
+                if (e instanceof ReferenceError) {
+                    return undefined;
+                } else {
+                    throw e;
+                }
+            }
+        }
+
         var instances = module.hot.data
@@ -136,4 +165,4 @@ ? module.hot.data.instances || {}
             // Returns true if the Elm app will take over the entire DOM body.
-            return typeof elm$browser$Browser$application !== 'undefined'
-                || typeof elm$browser$Browser$document !== 'undefined';
+            return typeof elmSymbol("elm$browser$Browser$application") !== 'undefined'
+                || typeof elmSymbol("elm$browser$Browser$document") !== 'undefined';
         }
@@ -381,3 +410,3 @@
 
-                    if (typeof elm$browser$Browser$application !== 'undefined') {
+                    if (typeof elmSymbol("elm$browser$Browser$application") !== 'undefined') {
                         // attempt to find the Browser.Navigation.Key in the newly-constructed model
@@ -419,3 +448,3 @@ // and bring it along with the rest of the old data.
                     // ignore any Cmds returned by the init during hot-swap
-                    initialStateTuple.b = elm$core$Platform$Cmd$none;
+                    initialStateTuple.b = elmSymbol("elm$core$Platform$Cmd$none");
                 } else {
@@ -426,3 +455,3 @@ // capture the initial state for later
                     // capture Browser.application's navigation key for later
-                    if (typeof elm$browser$Browser$application !== 'undefined') {
+                    if (typeof elmSymbol("elm$browser$Browser$application") !== 'undefined') {
                         var navKeyLoc = findNavKey(initializingInstance.lastState);
@@ -429,0 +458,0 @@ if (!navKeyLoc) {

No alert changes

Improved metrics

Total package byte prevSize

1647269

increased by262.63%

Number of package files

128

increased by54.22%

Lines of code

874

increased by3.19%

No dependency changes