metro-react-native-babel-preset - npm Package Compare versions

Comparing version 0.59.0 to 0.60.0

package.json

 {
   "name": "metro-react-native-babel-preset",
-  "version": "0.59.0",
+  "version": "0.60.0",
   "description": "Babel preset for React Native applications",
@@ -5,0 +5,0 @@ "main": "src/index.js",

README.md

@@ -24,3 +24,3 @@ # metro-react-native-babel-preset
 ```sh
-yarn add -d metro-react-native-babel-preset
+yarn add -D metro-react-native-babel-preset
 ```
@@ -27,0 +27,0 @@

src/configs/main.js

@@ -11,16 +11,33 @@ /**
 
+function ownKeys(object, enumerableOnly) {
+  var keys = Object.keys(object);
+  if (Object.getOwnPropertySymbols) {
+    var symbols = Object.getOwnPropertySymbols(object);
+    if (enumerableOnly)
+      symbols = symbols.filter(function(sym) {
+        return Object.getOwnPropertyDescriptor(object, sym).enumerable;
+      });
+    keys.push.apply(keys, symbols);
+  }
+  return keys;
+}
+
 function _objectSpread(target) {
   for (var i = 1; i < arguments.length; i++) {
     var source = arguments[i] != null ? arguments[i] : {};
-    var ownKeys = Object.keys(source);
-    if (typeof Object.getOwnPropertySymbols === "function") {
-      ownKeys = ownKeys.concat(
-        Object.getOwnPropertySymbols(source).filter(function(sym) {
-          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
-        })
-      );
+    if (i % 2) {
+      ownKeys(Object(source), true).forEach(function(key) {
+        _defineProperty(target, key, source[key]);
+      });
+    } else if (Object.getOwnPropertyDescriptors) {
+      Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
+    } else {
+      ownKeys(Object(source)).forEach(function(key) {
+        Object.defineProperty(
+          target,
+          key,
+          Object.getOwnPropertyDescriptor(source, key)
+        );
+      });
     }
-    ownKeys.forEach(function(key) {
-      _defineProperty(target, key, source[key]);
-    });
   }
@@ -46,3 +63,6 @@ return target;
   return (
-    _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread()
+    _arrayWithoutHoles(arr) ||
+    _iterableToArray(arr) ||
+    _unsupportedIterableToArray(arr) ||
+    _nonIterableSpread()
   );
@@ -52,10 +72,19 @@ }
 function _nonIterableSpread() {
-  throw new TypeError("Invalid attempt to spread non-iterable instance");
+  throw new TypeError(
+    "Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."
+  );
 }
 
+function _unsupportedIterableToArray(o, minLen) {
+  if (!o) return;
+  if (typeof o === "string") return _arrayLikeToArray(o, minLen);
+  var n = Object.prototype.toString.call(o).slice(8, -1);
+  if (n === "Object" && o.constructor) n = o.constructor.name;
+  if (n === "Map" || n === "Set") return Array.from(o);
+  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n))
+    return _arrayLikeToArray(o, minLen);
+}
+
 function _iterableToArray(iter) {
-  if (
-    Symbol.iterator in Object(iter) ||
-    Object.prototype.toString.call(iter) === "[object Arguments]"
-  )
+  if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter))
     return Array.from(iter);
@@ -65,9 +94,11 @@ }
 function _arrayWithoutHoles(arr) {
-  if (Array.isArray(arr)) {
-    for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++)
-      arr2[i] = arr[i];
-    return arr2;
-  }
+  if (Array.isArray(arr)) return _arrayLikeToArray(arr);
 }
 
+function _arrayLikeToArray(arr, len) {
+  if (len == null || len > arr.length) len = arr.length;
+  for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
+  return arr2;
+}
+
 const lazyImports = require("./lazy-imports");
@@ -123,3 +154,3 @@
     loose: true
-  }
+  } // dont 'a'.concat('b'), just use 'a'+'b'
 ];
@@ -130,3 +161,8 @@ const exponentiationOperator = [
 const objectAssign = [require("@babel/plugin-transform-object-assign")];
-const objectRestSpread = [require("@babel/plugin-proposal-object-rest-spread")];
+const objectRestSpread = [
+  require("@babel/plugin-proposal-object-rest-spread"), // Assume no dependence on getters or evaluation order. See https://github.com/babel/babel/pull/11520
+  {
+    loose: true
+  }
+];
 const nullishCoalescingOperator = [
@@ -166,3 +202,3 @@ require("@babel/plugin-proposal-nullish-coalescing-operator"),
 
-  if (!options.useTransformReactJsxExperimental) {
+  if (!options.useTransformReactJSXExperimental) {
     extraPlugins.push([require("@babel/plugin-transform-react-jsx")]);
@@ -227,2 +263,3 @@ }
   if (
+    transformProfile !== "hermes-stable" &&
     transformProfile !== "hermes-canary" &&
@@ -238,3 +275,3 @@ (isNull || src.indexOf("?.") !== -1)
 
-  if (options && options.dev && !options.useTransformReactJsxExperimental) {
+  if (options && options.dev && !options.useTransformReactJSXExperimental) {
     extraPlugins.push(reactJsxSource);
@@ -248,10 +285,2 @@ extraPlugins.push(reactJsxSelf);
 
-  let flowPlugins = {};
-
-  if (!options || !options.disableFlowStripTypesTransform) {
-    flowPlugins = {
-      plugins: [require("@babel/plugin-transform-flow-strip-types")]
-    };
-  }
-
   return {
@@ -263,4 +292,6 @@ comments: false,
       // there'll be a test case that fails if you don't.
-      flowPlugins,
       {
+        plugins: [require("@babel/plugin-transform-flow-strip-types")]
+      },
+      {
         plugins: defaultPlugins
@@ -306,5 +337,9 @@ },
         null,
-        _objectSpread({}, options, {
-          dev: true
-        })
+        _objectSpread(
+          _objectSpread({}, options),
+          {},
+          {
+            dev: true
+          }
+        )
       );
@@ -311,0 +346,0 @@ }

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Improved metrics

Total package byte prevSize

17181

increased by7.94%

Lines of code

449

increased by8.19%

No dependency changes