babel-runtime - npm Package Compare versions

Comparing version 5.1.10 to 5.1.11

package.json

 {
   "name": "babel-runtime",
   "description": "babel selfContained runtime",
-  "version": "5.1.10",
+  "version": "5.1.11",
   "repository": "babel/babel",
@@ -6,0 +6,0 @@ "author": "Sebastian McKenzie <[e-mail]>",

regenerator/index.js

@@ -5,9 +5,16 @@ // This method of obtaining a reference to the global object needs to be
   typeof global === "object" ? global :
-  typeof window === "object" ? window : this;
+  typeof window === "object" ? window :
+  typeof self === "object" ? self : this;
 
-var hasOwn = Object.prototype.hasOwnProperty;
-var hadRuntime = hasOwn.call(g, "regeneratorRuntime");
+// Use `getOwnPropertyNames` because not all browsers support calling
+// `hasOwnProperty` on the global `self` object in a worker. See #183.
+var hadRuntime = g.regeneratorRuntime &&
+  Object.getOwnPropertyNames(g).indexOf("regeneratorRuntime") >= 0;
+
+// Save the old regeneratorRuntime in case it needs to be restored later.
 var oldRuntime = hadRuntime && g.regeneratorRuntime;
-delete g.regeneratorRuntime; // Force reevalutation of runtime.js.
 
+// Force reevalutation of runtime.js.
+delete g.regeneratorRuntime;
+
 module.exports = require("./runtime");
@@ -14,0 +21,0 @@

regenerator/runtime.js

@@ -44,3 +44,8 @@ /**
   function wrap(innerFn, outerFn, self, tryLocsList) {
-    return new Generator(innerFn, outerFn, self || null, tryLocsList || []);
+    // If outerFn provided, then outerFn.prototype instanceof Generator.
+    var generator = Object.create((outerFn || Generator).prototype);
+
+    generator._invoke = makeInvokeMethod(innerFn, self || null, new Context(tryLocsList || []));
+
+    return generator;
   }
@@ -80,2 +85,3 @@ runtime.wrap = wrap;
   // minifier not to mangle the names of these two functions.
+  function Generator() {}
   function GeneratorFunction() {}
@@ -106,7 +112,7 @@ function GeneratorFunctionPrototype() {}
       var generator = wrap(innerFn, outerFn, self, tryLocsList);
-      var callNext = step.bind(generator.next);
-      var callThrow = step.bind(generator["throw"]);
+      var callNext = step.bind(generator, "next");
+      var callThrow = step.bind(generator, "throw");
 
-      function step(arg) {
-        var record = tryCatch(this, null, arg);
+      function step(method, arg) {
+        var record = tryCatch(generator[method], generator, arg);
         if (record.type === "throw") {
@@ -129,8 +135,6 @@ reject(record.arg);
 
-  function Generator(innerFn, outerFn, self, tryLocsList) {
-    var generator = outerFn ? Object.create(outerFn.prototype) : this;
-    var context = new Context(tryLocsList);
+  function makeInvokeMethod(innerFn, self, context) {
     var state = GenStateSuspendedStart;
 
-    function invoke(method, arg) {
+    return function invoke(method, arg) {
       if (state === GenStateExecuting) {
@@ -149,2 +153,28 @@ throw new Error("Generator is already running");
         if (delegate) {
+          if (method === "return" || method === "throw" && delegate.iterator["throw"] === undefined) {
+            // A return or throw (when the delegate iterator has no throw
+            // method) always terminates the yield* loop.
+            context.delegate = null;
+
+            // If the delegate iterator has a return method, give it a
+            // chance to clean up.
+            var returnMethod = delegate.iterator["return"];
+            if (returnMethod) {
+              var record = tryCatch(returnMethod, delegate.iterator, arg);
+              if (record.type === "throw") {
+                // If the return method threw an exception, let that
+                // exception prevail over the original return or throw.
+                method = "throw";
+                arg = record.arg;
+                continue;
+              }
+            }
+
+            if (method === "return") {
+              // Continue with the outer return, now that the delegate
+              // iterator has been terminated.
+              continue;
+            }
+          }
+
           var record = tryCatch(delegate.iterator[method], delegate.iterator, arg);
@@ -159,3 +189,2 @@
             arg = record.arg;
-
             continue;
@@ -183,7 +212,2 @@ }
         if (method === "next") {
-          if (state === GenStateSuspendedStart && typeof arg !== "undefined") {
-            // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
-            throw new TypeError("attempt to send " + JSON.stringify(arg) + " to newborn generator");
-          }
-
           if (state === GenStateSuspendedYield) {
@@ -234,18 +258,19 @@ context.sent = arg;
           state = GenStateCompleted;
-
-          if (method === "next") {
-            context.dispatchException(record.arg);
-          } else {
-            arg = record.arg;
-          }
+          // Dispatch the exception by looping back around to the
+          // context.dispatchException(arg) call above.
+          method = "throw";
+          arg = record.arg;
         }
       }
-    }
+    };
+  }
 
-    generator.next = invoke.bind(generator, "next");
-    generator["throw"] = invoke.bind(generator, "throw");
-    generator["return"] = invoke.bind(generator, "return");
-
-    return generator;
+  function defineGeneratorMethod(method) {
+    Gp[method] = function (arg) {
+      return this._invoke(method, arg);
+    };
   }
+  defineGeneratorMethod("next");
+  defineGeneratorMethod("throw");
+  defineGeneratorMethod("return");
 
@@ -525,2 +550,2 @@ Gp[iteratorSymbol] = function () {
 // use indirect eval (which violates Content Security Policy).
-typeof global === "object" ? global : typeof window === "object" ? window : undefined);
+typeof global === "object" ? global : typeof window === "object" ? window : typeof self === "object" ? self : undefined);

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Improved metrics

Total package byte prevSize

42972

increased by3.05%

Lines of code

827

increased by3.63%

No dependency changes