Rename "babylon" to "@babel/parser" (#7937) 🎉

packages/babel-parser/src/parser/index.js

@@ -0,0 +1,50 @@
+// @flow
+
+import type { Options } from "../options";
+import type { File } from "../types";
+import { getOptions } from "../options";
+import StatementParser from "./statement";
+
+export const plugins: {
+  [name: string]: (superClass: Class<Parser>) => Class<Parser>,
+} = {};
+
+export default class Parser extends StatementParser {
+  constructor(options: ?Options, input: string) {
+    options = getOptions(options);
+    super(options, input);
+
+    this.options = options;
+    this.inModule = this.options.sourceType === "module";
+    this.input = input;
+    this.plugins = pluginsMap(this.options.plugins);
+    this.filename = options.sourceFilename;
+
+    // If enabled, skip leading hashbang line.
+    if (
+      this.state.pos === 0 &&
+      this.input[0] === "#" &&
+      this.input[1] === "!"
+    ) {
+      this.skipLineComment(2);
+    }
+  }
+
+  parse(): File {
+    const file = this.startNode();
+    const program = this.startNode();
+    this.nextToken();
+    return this.parseTopLevel(file, program);
+  }
+}
+
+function pluginsMap(
+  pluginList: $ReadOnlyArray<string>,
+): { [key: string]: boolean } {
+  const pluginMap = Object.create(null);
+  for (const plugin of pluginList) {
+    const [name, options = {}] = Array.isArray(plugin) ? plugin : [plugin];
+    pluginMap[name] = options;
+  }
+  return pluginMap;
+}