finish reorganisation of babylon

packages/babylon/src/parser/location.js

@@ -0,0 +1,19 @@
+import { getLineInfo } from "../util/location";
+import Parser from "./index";
+
+const pp = Parser.prototype;
+
+// 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.
+
+pp.raise = function (pos, message) {
+  let loc = getLineInfo(this.input, pos);
+  message += ` (${loc.line}:${loc.column})`;
+  let err = new SyntaxError(message);
+  err.pos = pos;
+  err.loc = loc;
+  throw err;
+};