@babel/preset-env - npm Package Compare versions

Comparing version 7.6.3 to 7.7.0

lib/available-plugins.js

@@ -13,2 +13,3 @@ "use strict";
   "syntax-optional-catch-binding": require("@babel/plugin-syntax-optional-catch-binding"),
+  "syntax-top-level-await": require("@babel/plugin-syntax-top-level-await"),
   "transform-async-to-generator": require("@babel/plugin-transform-async-to-generator"),
@@ -15,0 +16,0 @@ "proposal-async-generator-functions": require("@babel/plugin-proposal-async-generator-functions"),

lib/filter-items.js

@@ -8,2 +8,3 @@ "use strict";
 exports.default = _default;
+exports.removeUnnecessaryItems = removeUnnecessaryItems;
 
@@ -72,2 +73,9 @@ var _semver = _interopRequireDefault(require("semver"));
   return result;
+}
+
+function removeUnnecessaryItems(items, overlapping) {
+  items.forEach(item => {
+    const names = overlapping.get(item);
+    if (names) names.forEach(name => items.delete(name));
+  });
 }

lib/index.js

@@ -30,2 +30,4 @@ "use strict";
 
+var _overlappingPlugins = _interopRequireDefault(require("../data/overlapping-plugins"));
+
 var _usagePlugin = _interopRequireDefault(require("./polyfills/corejs2/usage-plugin"));
@@ -87,3 +89,4 @@
   shouldTransformESM,
-  shouldTransformDynamicImport
+  shouldTransformDynamicImport,
+  shouldParseTopLevelAwait
 }) => {
@@ -110,2 +113,6 @@ const modulesPluginNames = [];
 
+  if (shouldParseTopLevelAwait) {
+    modulesPluginNames.push("syntax-top-level-await");
+  }
+
   return modulesPluginNames;
@@ -179,2 +186,6 @@ };
 
+function supportsTopLevelAwait(caller) {
+  return !!(caller && caller.supportsTopLevelAwait);
+}
+
 var _default = (0, _helperPluginUtils.declare)((api, opts) => {
@@ -229,3 +240,4 @@ api.assertVersion(7);
     shouldTransformESM: modules !== "auto" || !api.caller || !api.caller(supportsStaticESM),
-    shouldTransformDynamicImport: modules !== "auto" || !api.caller || !api.caller(supportsDynamicImport)
+    shouldTransformDynamicImport: modules !== "auto" || !api.caller || !api.caller(supportsDynamicImport),
+    shouldParseTopLevelAwait: api.caller(supportsTopLevelAwait)
   });
@@ -235,2 +247,3 @@ const pluginNames = (0, _filterItems.default)(shippedProposals ? _plugins.default : pluginListWithoutProposals, include.plugins, exclude.plugins, transformTargets, modulesPluginNames, (0, _getOptionSpecificExcludes.default)({
   }), _shippedProposals.pluginSyntaxMap);
+  (0, _filterItems.removeUnnecessaryItems)(pluginNames, _overlappingPlugins.default);
   const polyfillPlugins = getPolyfillPlugins({
@@ -237,0 +250,0 @@ useBuiltIns,

lib/polyfills/corejs3/built-in-definitions.js

@@ -94,3 +94,3 @@ "use strict";
   indexOf: ["es.array.index-of"],
-  italic: ["es.string.italics"],
+  italics: ["es.string.italics"],
   join: ["es.array.join"],
@@ -97,0 +97,0 @@ keys: ArrayNatureIteratorsWithTag,

lib/polyfills/corejs3/entry-plugin.js

@@ -47,2 +47,13 @@ "use strict";
   const available = new Set((0, _getModulesListForTargetVersion.default)(corejs.version));
+
+  function shouldReplace(source, modules) {
+    if (!modules) return false;
+
+    if (modules.length === 1 && polyfills.has(modules[0]) && available.has(modules[0]) && (0, _utils.getModulePath)(modules[0]) === source) {
+      return false;
+    }
+
+    return true;
+  }
+
   const isPolyfillImport = {
@@ -58,3 +69,3 @@ ImportDeclaration(path) {
 
-        if (modules) {
+        if (shouldReplace(source, modules)) {
           this.replaceBySeparateModulesImport(path, modules);
@@ -65,19 +76,34 @@ }
 
-    Program(path) {
-      path.get("body").forEach(bodyPath => {
-        const source = (0, _utils.getRequireSource)(bodyPath);
-        if (!source) return;
+    Program: {
+      enter(path) {
+        path.get("body").forEach(bodyPath => {
+          const source = (0, _utils.getRequireSource)(bodyPath);
+          if (!source) return;
 
-        if (isBabelPolyfillSource(source)) {
-          console.warn(BABEL_POLYFILL_DEPRECATION);
-        } else {
-          const modules = isCoreJSSource(source);
+          if (isBabelPolyfillSource(source)) {
+            console.warn(BABEL_POLYFILL_DEPRECATION);
+          } else {
+            const modules = isCoreJSSource(source);
 
-          if (modules) {
-            this.replaceBySeparateModulesImport(bodyPath, modules);
+            if (shouldReplace(source, modules)) {
+              this.replaceBySeparateModulesImport(bodyPath, modules);
+            }
           }
+        });
+      },
+
+      exit(path) {
+        const filtered = (0, _utils.intersection)(polyfills, this.polyfillsSet, available);
+        const reversed = Array.from(filtered).reverse();
+
+        for (const module of reversed) {
+          if (!this.injectedPolyfills.has(module)) {
+            (0, _utils.createImport)(path, module);
+          }
         }
-      });
+
+        filtered.forEach(module => this.injectedPolyfills.add(module));
+      }
+
     }
-
   };
@@ -89,2 +115,3 @@ return {
     pre() {
+      this.injectedPolyfills = new Set();
       this.polyfillsSet = new Set();
@@ -101,14 +128,5 @@
 
-    post({
-      path
-    }) {
-      const filtered = (0, _utils.intersection)(polyfills, this.polyfillsSet, available);
-      const reversed = Array.from(filtered).reverse();
-
-      for (const module of reversed) {
-        (0, _utils.createImport)(path, module);
-      }
-
+    post() {
       if (debug) {
-        (0, _debug.logEntryPolyfills)("core-js", this.polyfillsSet.size > 0, filtered, this.file.opts.filename, polyfillTargets, _data.default);
+        (0, _debug.logEntryPolyfills)("core-js", this.injectedPolyfills.size > 0, this.injectedPolyfills, this.file.opts.filename, polyfillTargets, _data.default);
       }
@@ -115,0 +133,0 @@ }

lib/polyfills/corejs3/usage-plugin.js

@@ -109,9 +109,25 @@ "use strict";
 
-    Program(path) {
-      path.get("body").forEach(bodyPath => {
-        if ((0, _utils.isPolyfillSource)((0, _utils.getRequireSource)(bodyPath))) {
-          console.warn(NO_DIRECT_POLYFILL_IMPORT);
-          bodyPath.remove();
+    Program: {
+      enter(path) {
+        path.get("body").forEach(bodyPath => {
+          if ((0, _utils.isPolyfillSource)((0, _utils.getRequireSource)(bodyPath))) {
+            console.warn(NO_DIRECT_POLYFILL_IMPORT);
+            bodyPath.remove();
+          }
+        });
+      },
+
+      exit(path) {
+        const filtered = (0, _utils.intersection)(polyfills, this.polyfillsSet, available);
+        const reversed = Array.from(filtered).reverse();
+
+        for (const module of reversed) {
+          if (!this.injectedPolyfills.has(module)) {
+            (0, _utils.createImport)(path, module);
+          }
         }
-      });
+
+        filtered.forEach(module => this.injectedPolyfills.add(module));
+      }
+
     },
@@ -209,2 +225,3 @@
     pre() {
+      this.injectedPolyfills = new Set();
       this.polyfillsSet = new Set();
@@ -257,14 +274,5 @@
 
-    post({
-      path
-    }) {
-      const filtered = (0, _utils.intersection)(polyfills, this.polyfillsSet, available);
-      const reversed = Array.from(filtered).reverse();
-
-      for (const module of reversed) {
-        (0, _utils.createImport)(path, module);
-      }
-
+    post() {
       if (debug) {
-        (0, _debug.logUsagePolyfills)(filtered, this.file.opts.filename, polyfillTargets, _data.default);
+        (0, _debug.logUsagePolyfills)(this.injectedPolyfills, this.file.opts.filename, polyfillTargets, _data.default);
       }
@@ -271,0 +279,0 @@ },

package.json

 {
   "name": "@babel/preset-env",
-  "version": "7.6.3",
+  "version": "7.7.0",
   "description": "A Babel preset for each environment.",
@@ -17,10 +17,10 @@ "author": "Henry Zhu <[e-mail]>",
   "dependencies": {
-    "@babel/helper-module-imports": "^7.0.0",
+    "@babel/helper-module-imports": "^7.7.0",
     "@babel/helper-plugin-utils": "^7.0.0",
-    "@babel/plugin-proposal-async-generator-functions": "^7.2.0",
-    "@babel/plugin-proposal-dynamic-import": "^7.5.0",
+    "@babel/plugin-proposal-async-generator-functions": "^7.7.0",
+    "@babel/plugin-proposal-dynamic-import": "^7.7.0",
     "@babel/plugin-proposal-json-strings": "^7.2.0",
     "@babel/plugin-proposal-object-rest-spread": "^7.6.2",
     "@babel/plugin-proposal-optional-catch-binding": "^7.2.0",
-    "@babel/plugin-proposal-unicode-property-regex": "^7.6.2",
+    "@babel/plugin-proposal-unicode-property-regex": "^7.7.0",
     "@babel/plugin-syntax-async-generators": "^7.2.0",
@@ -31,21 +31,22 @@ "@babel/plugin-syntax-dynamic-import": "^7.2.0",
     "@babel/plugin-syntax-optional-catch-binding": "^7.2.0",
+    "@babel/plugin-syntax-top-level-await": "^7.7.0",
     "@babel/plugin-transform-arrow-functions": "^7.2.0",
-    "@babel/plugin-transform-async-to-generator": "^7.5.0",
+    "@babel/plugin-transform-async-to-generator": "^7.7.0",
     "@babel/plugin-transform-block-scoped-functions": "^7.2.0",
     "@babel/plugin-transform-block-scoping": "^7.6.3",
-    "@babel/plugin-transform-classes": "^7.5.5",
+    "@babel/plugin-transform-classes": "^7.7.0",
     "@babel/plugin-transform-computed-properties": "^7.2.0",
     "@babel/plugin-transform-destructuring": "^7.6.0",
-    "@babel/plugin-transform-dotall-regex": "^7.6.2",
+    "@babel/plugin-transform-dotall-regex": "^7.7.0",
     "@babel/plugin-transform-duplicate-keys": "^7.5.0",
     "@babel/plugin-transform-exponentiation-operator": "^7.2.0",
     "@babel/plugin-transform-for-of": "^7.4.4",
-    "@babel/plugin-transform-function-name": "^7.4.4",
+    "@babel/plugin-transform-function-name": "^7.7.0",
     "@babel/plugin-transform-literals": "^7.2.0",
     "@babel/plugin-transform-member-expression-literals": "^7.2.0",
     "@babel/plugin-transform-modules-amd": "^7.5.0",
-    "@babel/plugin-transform-modules-commonjs": "^7.6.0",
-    "@babel/plugin-transform-modules-systemjs": "^7.5.0",
-    "@babel/plugin-transform-modules-umd": "^7.2.0",
-    "@babel/plugin-transform-named-capturing-groups-regex": "^7.6.3",
+    "@babel/plugin-transform-modules-commonjs": "^7.7.0",
+    "@babel/plugin-transform-modules-systemjs": "^7.7.0",
+    "@babel/plugin-transform-modules-umd": "^7.7.0",
+    "@babel/plugin-transform-named-capturing-groups-regex": "^7.7.0",
     "@babel/plugin-transform-new-target": "^7.4.4",
@@ -55,3 +56,3 @@ "@babel/plugin-transform-object-super": "^7.5.5",
     "@babel/plugin-transform-property-literals": "^7.2.0",
-    "@babel/plugin-transform-regenerator": "^7.4.5",
+    "@babel/plugin-transform-regenerator": "^7.7.0",
     "@babel/plugin-transform-reserved-words": "^7.2.0",
@@ -63,4 +64,4 @@ "@babel/plugin-transform-shorthand-properties": "^7.2.0",
     "@babel/plugin-transform-typeof-symbol": "^7.2.0",
-    "@babel/plugin-transform-unicode-regex": "^7.6.2",
-    "@babel/types": "^7.6.3",
+    "@babel/plugin-transform-unicode-regex": "^7.7.0",
+    "@babel/types": "^7.7.0",
     "browserslist": "^4.6.0",
@@ -76,4 +77,4 @@ "core-js-compat": "^3.1.1",
   "devDependencies": {
-    "@babel/cli": "^7.6.3",
-    "@babel/core": "^7.6.3",
+    "@babel/cli": "^7.7.0",
+    "@babel/core": "^7.7.0",
     "@babel/helper-fixtures": "^7.6.3",
@@ -86,3 +87,3 @@ "@babel/helper-plugin-test-runner": "^7.0.0",
   },
-  "gitHead": "d329156ebc17da01382acb83e212cb4328534ebc"
+  "gitHead": "97faa83953cb87e332554fa559a4956d202343ea"
 }

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Found 1 instance in 1 package

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Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

151737

increased by1.36%

Number of package files

33

increased by3.13%

Lines of code

4537

increased by1.09%

Worsened metrics

Dependency count

52

increased by1.96%

Dependency changes

• + Added@babel/plugin-syntax-top-level-await@^7.7.0

• + Added@babel/plugin-syntax-top-level-await@7.14.5(transitive)

• Updated@babel/helper-module-imports@^7.7.0

• Updated@babel/plugin-proposal-async-generator-functions@^7.7.0

• Updated@babel/plugin-proposal-dynamic-import@^7.7.0

• Updated@babel/plugin-proposal-unicode-property-regex@^7.7.0

• Updated@babel/plugin-transform-async-to-generator@^7.7.0

• Updated@babel/plugin-transform-classes@^7.7.0

• Updated@babel/plugin-transform-dotall-regex@^7.7.0

• Updated@babel/plugin-transform-function-name@^7.7.0

• Updated@babel/plugin-transform-modules-commonjs@^7.7.0

• Updated@babel/plugin-transform-modules-systemjs@^7.7.0

• Updated@babel/plugin-transform-modules-umd@^7.7.0

• Updated@babel/plugin-transform-named-capturing-groups-regex@^7.7.0

• Updated@babel/plugin-transform-regenerator@^7.7.0

• Updated@babel/plugin-transform-unicode-regex@^7.7.0

• Updated@babel/types@^7.7.0