6to5-runtime - npm Package Compare versions

Comparing version 3.4.1 to 3.5.0

helpers.js

 "use strict";
 
+var _to5Helpers = require("6to5-runtime/helpers");
+
 var _core = require("6to5-runtime/core-js");
@@ -44,7 +46,7 @@
 exports.taggedTemplateLiteral = function (strings, raw) {
-  return _core.Object.freeze(Object.defineProperties(strings, {
+  return _to5Helpers.tailCall(_core.Object.freeze, [Object.defineProperties(strings, {
     raw: {
       value: _core.Object.freeze(raw)
     }
-  }));
+  })], Object);
 };
@@ -62,3 +64,7 @@
 exports.toArray = function (arr) {
-  return Array.isArray(arr) ? arr : _core.Array.from(arr);
+  if (Array.isArray(arr)) {
+    return arr;
+  } else {
+    return _to5Helpers.tailCall(_core.Array.from, [arr], Array);
+  }
 };
@@ -98,3 +104,3 @@
 exports.defineProperty = function (obj, key, value) {
-  return Object.defineProperty(obj, key, {
+  return _to5Helpers.tailCall(Object.defineProperty, [obj, key, {
     value: value,
@@ -104,3 +110,3 @@ enumerable: true,
     writable: true
-  });
+  }], Object);
 };
@@ -170,3 +176,3 @@
     } else {
-      return get(parent, property, receiver);
+      return _to5Helpers.tailCall(get, [parent, property, receiver]);
     }
@@ -180,3 +186,3 @@ } else if ("value" in desc && desc.writable) {
     }
-    return getter.call(receiver);
+    return _to5Helpers.tailCall(getter.call, [receiver], getter);
   }
@@ -194,3 +200,3 @@ };
     } else {
-      return set(parent, property, value, receiver);
+      return _to5Helpers.tailCall(set, [parent, property, value, receiver]);
     }
@@ -205,3 +211,3 @@ } else if ("value" in desc && desc.writable) {
     }
-    return setter.call(receiver, value);
+    return _to5Helpers.tailCall(setter.call, [receiver, value], setter);
   }
@@ -218,2 +224,32 @@ };
   if (obj == null) throw new TypeError("Cannot destructure undefined");
-};
+};
+
+exports.temporalUndefined = {};
+exports.temporalAssertDefined = function (val, name, undef) {
+  if (val === undef) {
+    throw new ReferenceError(name + " is not defined - temporal dead zone");
+  }
+  return true;
+};
+
+exports.tailCall = (function () {
+  function Tail(func, args, context) {
+    this.func = func;
+    this.args = args;
+    this.context = context;
+  }
+
+  var isRunning = false;
+
+  return function (func, args, context) {
+    var result = new Tail(func, args, context);
+    if (!isRunning) {
+      isRunning = true;
+      do {
+        result = result.func.apply(result.context, result.args);
+      } while (result instanceof Tail);
+      isRunning = false;
+    }
+    return result;
+  };
+})();

package.json

 {
   "name": "6to5-runtime",
   "description": "6to5 selfContained runtime",
-  "version": "3.4.1",
+  "version": "3.5.0",
   "repository": "6to5/6to5",
   "author": "Sebastian McKenzie <[e-mail]>"
 }

regenerator/runtime.js

 "use strict";
 
+var _to5Helpers = require("6to5-runtime/helpers");
+
 var _core = require("6to5-runtime/core-js");
@@ -135,3 +137,3 @@
         // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
-        return doneResult();
+        return _to5Helpers.tailCall(doneResult);
       }
@@ -310,3 +312,3 @@
       if (iteratorMethod) {
-        return iteratorMethod.call(iterable);
+        return _to5Helpers.tailCall(iteratorMethod.call, [iterable], iteratorMethod);
       }
@@ -400,3 +402,3 @@
           // throw the exception.
-          return handle("end");
+          return _to5Helpers.tailCall(handle, ["end"]);
         }
@@ -410,13 +412,13 @@
             if (this.prev < entry.catchLoc) {
-              return handle(entry.catchLoc, true);
+              return _to5Helpers.tailCall(handle, [entry.catchLoc, true]);
             } else if (this.prev < entry.finallyLoc) {
-              return handle(entry.finallyLoc);
+              return _to5Helpers.tailCall(handle, [entry.finallyLoc]);
             }
           } else if (hasCatch) {
             if (this.prev < entry.catchLoc) {
-              return handle(entry.catchLoc, true);
+              return _to5Helpers.tailCall(handle, [entry.catchLoc, true]);
             }
           } else if (hasFinally) {
             if (this.prev < entry.finallyLoc) {
-              return handle(entry.finallyLoc);
+              return _to5Helpers.tailCall(handle, [entry.finallyLoc]);
             }
@@ -471,4 +473,5 @@ } else {
     finish: function (finallyLoc) {
+      var _temp;
       var entry = this._findFinallyEntry(finallyLoc);
-      return this.complete(entry.completion);
+      return _to5Helpers.tailCall((_temp = this).complete, [entry.completion], _temp);
     },
@@ -475,0 +478,0 @@

No alert changes

Improved metrics

Total package byte prevSize

99708

increased by1.31%

Lines of code

2720

increased by1.23%

No dependency changes