@babel/preset-flow - npm Package Compare versions

Comparing version 8.0.0-alpha.6 to 8.0.0-alpha.7

lib/index.js

@@ -9,3 +9,4 @@ import { declarePreset } from '@babel/helper-plugin-utils';
     all,
-    ignoreExtensions
+    ignoreExtensions,
+    experimental_useHermesParser
   } = options;
@@ -16,3 +17,4 @@ {
       all: "all",
-      ignoreExtensions: "ignoreExtensions"
+      ignoreExtensions: "ignoreExtensions",
+      experimental_useHermesParser: "experimental_useHermesParser"
     };
@@ -22,5 +24,7 @@ v.validateTopLevelOptions(options, TopLevelOptions);
     ignoreExtensions = v.validateBooleanOption(TopLevelOptions.ignoreExtensions, ignoreExtensions);
+    experimental_useHermesParser = v.validateBooleanOption(TopLevelOptions.experimental_useHermesParser, experimental_useHermesParser);
     return {
       all,
-      ignoreExtensions
+      ignoreExtensions,
+      experimental_useHermesParser
     };
@@ -31,25 +35,30 @@ }
 var index = declarePreset((api, opts) => {
-  api.assertVersion("8.0.0-alpha.6");
+  api.assertVersion("8.0.0-alpha.7");
   const {
     all,
     allowDeclareFields,
-    ignoreExtensions = false
+    ignoreExtensions = false,
+    experimental_useHermesParser: useHermesParser = false
   } = normalizeOptions(opts);
-  const flowPlugin = [transformFlowStripTypes, {
+  const plugins = [[transformFlowStripTypes, {
     all,
     allowDeclareFields
-  }];
+  }]];
+  if (useHermesParser) {
+    if (Number.parseInt(process.versions.node, 10) < 12) {
+      throw new Error("The Hermes parser is only supported in Node 12 and later.");
+    }
+    plugins.unshift("babel-plugin-syntax-hermes-parser");
+  }
   if (ignoreExtensions) {
     return {
-      plugins: [flowPlugin]
+      plugins
     };
   }
-  {
-    return {
-      overrides: [{
-        test: filename => filename == null || !/\.tsx?$/.test(filename),
-        plugins: [flowPlugin]
-      }]
-    };
-  }
+  return {
+    overrides: [{
+      test: filename => filename == null || !/\.tsx?$/.test(filename),
+      plugins
+    }]
+  };
 });
@@ -56,0 +65,0 @@

package.json

 {
   "name": "@babel/preset-flow",
-  "version": "8.0.0-alpha.6",
+  "version": "8.0.0-alpha.7",
   "description": "Babel preset for all Flow plugins.",
@@ -23,12 +23,13 @@ "author": "The Babel Team (https://babel.dev/team)",
   "dependencies": {
-    "@babel/helper-plugin-utils": "^8.0.0-alpha.6",
-    "@babel/helper-validator-option": "^8.0.0-alpha.6",
-    "@babel/plugin-transform-flow-strip-types": "^8.0.0-alpha.6"
+    "@babel/helper-plugin-utils": "^8.0.0-alpha.7",
+    "@babel/helper-validator-option": "^8.0.0-alpha.7",
+    "@babel/plugin-transform-flow-strip-types": "^8.0.0-alpha.7"
   },
   "peerDependencies": {
-    "@babel/core": "^8.0.0-alpha.6"
+    "@babel/core": "^8.0.0-alpha.7"
   },
   "devDependencies": {
-    "@babel/core": "^8.0.0-alpha.6",
-    "@babel/helper-plugin-test-runner": "^8.0.0-alpha.6"
+    "@babel/core": "^8.0.0-alpha.7",
+    "@babel/helper-plugin-test-runner": "^8.0.0-alpha.7",
+    "babel-plugin-syntax-hermes-parser": "^0.19.1"
   },
@@ -35,0 +36,0 @@ "homepage": "https://babel.dev/docs/en/next/babel-preset-flow",

No alert changes

Improved metrics

Total package byte prevSize

9804

increased by20.47%

Lines of code

60

increased by17.65%

Worsened metrics

Dev dependency count

3

increased by50%

Dependency changes

• - Removedescalade@3.1.2(transitive)

• - Removedupdate-browserslist-db@1.0.15(transitive)

• Updated@babel/helper-plugin-utils@^8.0.0-alpha.7

• Updated@babel/helper-validator-option@^8.0.0-alpha.7

• Updated@babel/plugin-transform-flow-strip-types@^8.0.0-alpha.7