Add @babel/plugin-syntax*

lib/core/parse-code.js

@@ -52,40 +52,40 @@ function findIdentifiers(node, identifiers = []) {
 
 export default function parseCode(code: string): Info {
   const { traverse, types: t } = require("@babel/core")
-  const { Hub, NodePath } = traverse
   const { parse } = require("@babel/core")
   let ast = undefined
 
   try {
     ast = parse(code, {
       sourceType: "module",
-      // TODO: Figure out the new parameters for parse. This needs to be able to
-      // parse EVERYTHING that is supported by Babel. Versions <= 6 didn't
-      // require installing additional packages, but now maybe it does. I
-      // haven't found a complete list of available plugins.
-      //
-      // From the FAQ https://babeljs.io/docs/en/babel-parser
-      //
-      // Q: Will the Babel parser support a plugin system?
-      //
-      // A: We currently aren't willing to commit to supporting the API for
-      // plugins or the resulting ecosystem (there is already enough work
-      // maintaining Babel's own plugin system). ...
-      //
-      // So what is `babel-plugin-flow` if the parser doesn't support plugins?
+      // Enable as many plugins as I can so that people don't need to configure
+      // anything.
       plugins: [
-        // Error: Cannot find module 'babel-plugin-flow' from '/home/asa/repos/js-hyperclick'
-        "jsx",
-        "flow",
-        "doExpressions",
-        "objectRestSpread",
-        "decorators",
-        "classProperties",
-        "exportExtensions",
-        "asyncGenerators",
-        "functionBind",
-        "functionSent",
-        "dynamicImport",
+        "@babel/plugin-syntax-async-generators",
+        "@babel/plugin-syntax-bigint",
+        "@babel/plugin-syntax-class-properties",
+        ["@babel/plugin-syntax-decorators", { decoratorsBeforeExport: false }],
+        "@babel/plugin-syntax-do-expressions",
+        "@babel/plugin-syntax-dynamic-import",
+        "@babel/plugin-syntax-export-default-from",
+        "@babel/plugin-syntax-export-namespace-from",
+        "@babel/plugin-syntax-flow",
+        "@babel/plugin-syntax-function-bind",
+        "@babel/plugin-syntax-function-sent",
+        "@babel/plugin-syntax-import-meta",
+        "@babel/plugin-syntax-json-strings",
+        "@babel/plugin-syntax-jsx",
+        "@babel/plugin-syntax-logical-assignment-operators",
+        "@babel/plugin-syntax-nullish-coalescing-operator",
+        "@babel/plugin-syntax-numeric-separator",
+        "@babel/plugin-syntax-object-rest-spread",
+        "@babel/plugin-syntax-optional-catch-binding",
+        "@babel/plugin-syntax-optional-chaining",
+        ["@babel/plugin-syntax-pipeline-operator", { proposal: "minimal" }],
+        "@babel/plugin-syntax-throw-expressions",
+        // Even though Babel can parse typescript, I can't have it and flow
+        // enabled at the same time.
+        // "@babel/plugin-syntax-typescript",
       ],
     })
   } catch (parseError) {
@@ -326,40 +326,7 @@ export default function parseCode(code: string): Info {
   }
 
   try {
-    // TODO: Figure out the Babel7 solution. Hub doesn't exist now and was a
-    // workaround for https://github.com/babel/babel/issues/4640
-    const hub = new Hub({
-      buildCodeFrameError(node, message, Error) {
-        const loc = node && (node.loc || node._loc)
-
-        /* istanbul ignore else */
-        if (loc) {
-          const err = new Error(
-            `${message} (${loc.start.line}:${loc.start.column})`,
-          )
-          err[parseErrorTag] = true
-          return err
-        } else {
-          // Assume if we don't have a location, then it isn't a problem
-          // in the user's code and shouldn't be displayed as a parse
-          // error.
-          return new Error(message)
-        }
-      },
-    })
-    const path = NodePath.get({
-      hub: hub,
-      parentPath: null,
-      parent: ast,
-      container: ast,
-      key: "program",
-    }).setContext()
-
-    // On order to capture duplicate declaration errors I have to build a
-    // scope to get access to a "hub" that returns the error I need to catch.
-    //
-    // https://github.com/babel/babel/issues/4640
-    traverse(ast, visitors, path.scope)
+    traverse(ast, visitors)
   } catch (e) {
     /* istanbul ignore else */
     if (e[parseErrorTag]) {

package.json

@@ -33,6 +33,28 @@
   },
   "dependencies": {
     "@babel/core": "^7.1.5",
+    "@babel/plugin-syntax-async-generators": "^7.0.0",
+    "@babel/plugin-syntax-bigint": "^7.0.0",
+    "@babel/plugin-syntax-class-properties": "^7.0.0",
+    "@babel/plugin-syntax-decorators": "^7.1.0",
+    "@babel/plugin-syntax-do-expressions": "^7.0.0",
+    "@babel/plugin-syntax-dynamic-import": "^7.0.0",
+    "@babel/plugin-syntax-export-default-from": "^7.0.0",
+    "@babel/plugin-syntax-export-namespace-from": "^7.0.0",
+    "@babel/plugin-syntax-flow": "^7.0.0",
+    "@babel/plugin-syntax-function-bind": "^7.0.0",
+    "@babel/plugin-syntax-function-sent": "^7.0.0",
+    "@babel/plugin-syntax-import-meta": "^7.0.0",
+    "@babel/plugin-syntax-json-strings": "^7.0.0",
+    "@babel/plugin-syntax-jsx": "^7.0.0",
+    "@babel/plugin-syntax-logical-assignment-operators": "^7.0.0",
+    "@babel/plugin-syntax-nullish-coalescing-operator": "^7.0.0",
+    "@babel/plugin-syntax-numeric-separator": "^7.0.0",
+    "@babel/plugin-syntax-object-rest-spread": "^7.0.0",
+    "@babel/plugin-syntax-optional-catch-binding": "^7.0.0",
+    "@babel/plugin-syntax-optional-chaining": "^7.0.0",
+    "@babel/plugin-syntax-pipeline-operator": "^7.0.0",
+    "@babel/plugin-syntax-throw-expressions": "^7.0.0",
     "acorn-to-esprima": "^1.0.4",
     "atom-package-deps": "^4.6.0",
     "escope": "^3.2.0",