@babel/helpers - npm Package Compare versions

Comparing version 7.5.5 to 7.6.0

lib/helpers.js

@@ -64,11 +64,2 @@ "use strict";
     }
-    if (props && defaultProps) {
-      for (var propName in defaultProps) {
-        if (props[propName] === void 0) {
-          props[propName] = defaultProps[propName];
-        }
-      }
-    } else if (!props) {
-      props = defaultProps || {};
-    }
 
@@ -85,2 +76,12 @@ if (childrenLength === 1) {
 
+    if (props && defaultProps) {
+      for (var propName in defaultProps) {
+        if (props[propName] === void 0) {
+          props[propName] = defaultProps[propName];
+        }
+      }
+    } else if (!props) {
+      props = defaultProps || {};
+    }
+
     return {
@@ -413,3 +414,3 @@ $$typeof: REACT_ELEMENT_TYPE,
   // This function is different to "Reflect.ownKeys". The enumerableOnly
-  // filters on symbol properties only. Returned string properties are always 
+  // filters on symbol properties only. Returned string properties are always
   // enumerable. It is good to use in objectSpread.
@@ -599,24 +600,41 @@
 helpers.interopRequireWildcard = helper("7.0.0-beta.0")`
+  function _getRequireWildcardCache() {
+    if (typeof WeakMap !== "function") return null;
+
+    var cache = new WeakMap();
+    _getRequireWildcardCache = function () { return cache; };
+    return cache;
+  }
+
   export default function _interopRequireWildcard(obj) {
     if (obj && obj.__esModule) {
       return obj;
-    } else {
-      var newObj = {};
-      if (obj != null) {
-        for (var key in obj) {
-          if (Object.prototype.hasOwnProperty.call(obj, key)) {
-            var desc = Object.defineProperty && Object.getOwnPropertyDescriptor
-              ? Object.getOwnPropertyDescriptor(obj, key)
-              : {};
-            if (desc.get || desc.set) {
-              Object.defineProperty(newObj, key, desc);
-            } else {
-              newObj[key] = obj[key];
-            }
+    }
+
+    var cache = _getRequireWildcardCache();
+    if (cache && cache.has(obj)) {
+      return cache.get(obj);
+    }
+
+    var newObj = {};
+    if (obj != null) {
+      var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor;
+      for (var key in obj) {
+        if (Object.prototype.hasOwnProperty.call(obj, key)) {
+          var desc = hasPropertyDescriptor
+            ? Object.getOwnPropertyDescriptor(obj, key)
+            : null;
+          if (desc && (desc.get || desc.set)) {
+            Object.defineProperty(newObj, key, desc);
+          } else {
+            newObj[key] = obj[key];
           }
         }
       }
-      newObj.default = obj;
-      return newObj;
     }
+    newObj.default = obj;
+    if (cache) {
+      cache.set(obj, newObj);
+    }
+    return newObj;
   }
@@ -799,13 +817,2 @@ `;
 `;
-helpers.temporalRef = helper("7.0.0-beta.0")`
-  import undef from "temporalUndefined";
-
-  export default function _temporalRef(val, name) {
-    if (val === undef) {
-      throw new ReferenceError(name + " is not defined - temporal dead zone");
-    } else {
-      return val;
-    }
-  }
-`;
 helpers.readOnlyError = helper("7.0.0-beta.0")`
@@ -822,4 +829,19 @@ export default function _readOnlyError(name) {
 helpers.temporalUndefined = helper("7.0.0-beta.0")`
-  export default {};
+  // This function isn't mean to be called, but to be used as a reference.
+  // We can't use a normal object because it isn't hoisted.
+  export default function _temporalUndefined() {}
 `;
+helpers.tdz = helper("7.5.5")`
+  export default function _tdzError(name) {
+    throw new ReferenceError(name + " is not defined - temporal dead zone");
+  }
+`;
+helpers.temporalRef = helper("7.0.0-beta.0")`
+  import undef from "temporalUndefined";
+  import err from "tdz";
+
+  export default function _temporalRef(val, name) {
+    return val === undef ? err(name) : val;
+  }
+`;
 helpers.slicedToArray = helper("7.0.0-beta.0")`
@@ -893,3 +915,5 @@ import arrayWithHoles from "arrayWithHoles";
     // _s = _step
-
+    if (!(
+      Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]"
+    )) { return }
     var _arr = [];
@@ -919,2 +943,5 @@ var _n = true;
   export default function _iterableToArrayLimitLoose(arr, i) {
+    if (!(
+      Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]"
+    )) { return }
     var _arr = [];
@@ -1103,2 +1130,5 @@ for (var _iterator = arr[Symbol.iterator](), _step; !(_step = _iterator.next()).done;) {
     }
+    if (descriptor.get) {
+      return descriptor.get.call(receiver);
+    }
     return descriptor.value;
@@ -1112,9 +1142,14 @@ }
     }
-    if (!descriptor.writable) {
-      // This should only throw in strict mode, but class bodies are
-      // always strict and private fields can only be used inside
-      // class bodies.
-      throw new TypeError("attempted to set read only private field");
+    if (descriptor.set) {
+      descriptor.set.call(receiver, value);
+    } else {
+      if (!descriptor.writable) {
+        // This should only throw in strict mode, but class bodies are
+        // always strict and private fields can only be used inside
+        // class bodies.
+        throw new TypeError("attempted to set read only private field");
+      }
+      descriptor.value = value;
     }
-    descriptor.value = value;
+
     return value;
@@ -1830,3 +1865,3 @@ }
     _wrapRegExp = function(re, groups) {
-      return new BabelRegExp(re, groups);
+      return new BabelRegExp(re, undefined, groups);
     };
@@ -1838,5 +1873,6 @@
 
-    function BabelRegExp(re, groups) {
-      var _this = _RegExp.call(this, re);
-      _groups.set(_this, groups);
+    function BabelRegExp(re, flags, groups) {
+      var _this = _RegExp.call(this, re, flags);
+      // if the regex is recreated with 'g' flag
+      _groups.set(_this, groups || _groups.get(re));
       return _this;
@@ -1843,0 +1879,0 @@ }

package.json

 {
   "name": "@babel/helpers",
-  "version": "7.5.5",
+  "version": "7.6.0",
   "description": "Collection of helper functions used by Babel transforms.",
@@ -14,5 +14,5 @@ "author": "Sebastian McKenzie <[e-mail]>",
   "dependencies": {
-    "@babel/template": "^7.4.4",
-    "@babel/traverse": "^7.5.5",
-    "@babel/types": "^7.5.5"
+    "@babel/template": "^7.6.0",
+    "@babel/traverse": "^7.6.0",
+    "@babel/types": "^7.6.0"
   },
@@ -22,3 +22,3 @@ "devDependencies": {
   },
-  "gitHead": "0407f034f09381b95e9cabefbf6b176c76485a43"
+  "gitHead": "cbd5a26e57758e3f748174ff84aa570e8780e85d"
 }

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Improved metrics

Total package byte prevSize

70283

increased by1.71%

Lines of code

1957

increased by1.61%

Dependency changes

• Updated@babel/template@^7.6.0

• Updated@babel/traverse@^7.6.0

• Updated@babel/types@^7.6.0