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

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

@@ -0,0 +1,40 @@
+// @flow
+
+import { getLineInfo, type Position } from "../util/location";
+import CommentsParser from "./comments";
+
+// This function is used to raise exceptions on parse errors. It
+// takes an offset integer (into the current `input`) to indicate
+// the location of the error, attaches the position to the end
+// of the error message, and then raises a `SyntaxError` with that
+// message.
+
+export default class LocationParser extends CommentsParser {
+  raise(
+    pos: number,
+    message: string,
+    {
+      missingPluginNames,
+      code,
+    }: {
+      missingPluginNames?: Array<string>,
+      code?: string,
+    } = {},
+  ): empty {
+    const loc = getLineInfo(this.input, pos);
+    message += ` (${loc.line}:${loc.column})`;
+    // $FlowIgnore
+    const err: SyntaxError & { pos: number, loc: Position } = new SyntaxError(
+      message,
+    );
+    err.pos = pos;
+    err.loc = loc;
+    if (missingPluginNames) {
+      err.missingPlugin = missingPluginNames;
+    }
+    if (code !== undefined) {
+      err.code = code;
+    }
+    throw err;
+  }
+}