From 0c1bc3270340a84101d12dbee50631bc3a7dc64b Mon Sep 17 00:00:00 2001
From: Ben Newman <ben@benjamn.com>
Date: Thu, 4 Jul 2019 15:48:08 -0400
Subject: [PATCH] Remove tolerantParse workaround from parser.js.

Now that @babel/parser@7.5.0 is out, we no longer need to simulate the
effect of https://github.com/babel/babel/pull/9864.

See also https://github.com/benjamn/reify/pull/230.
---
 parser.js | 22 +---------------------
 1 file changed, 1 insertion(+), 21 deletions(-)

diff --git a/parser.js b/parser.js
index 759b709..17cc6fe 100644
--- a/parser.js
+++ b/parser.js
@@ -1,30 +1,10 @@
 "use strict";
 
 const babelParser = require("@babel/parser");
-const babelParserVersion = require("@babel/parser/package.json").version;
 const defaultParserOptions = require("reify/lib/parsers/babel.js").options;
 
 function parse(code, parserOptions) {
   return babelParser.parse(code, parserOptions || defaultParserOptions);
 }
 
-function tolerantParse(code, parserOptions) {
-  const arrayFrom = Array.from;
-  // There is only one use of Array.from in the @babel/parser@7.4.x code,
-  // Array.from(this.scope.undefinedExports), which determines whether the
-  // parser complains prematurely about exporting identifiers that were
-  // not declared in the current module scope. By returning an empty array
-  // when the source argument is a Map, we can effectively disable that
-  // error behavior, until https://github.com/babel/babel/pull/9864 is
-  // released in @babel/parser@7.5.0.
-  Array.from = function (source) {
-    return source instanceof Map ? [] : arrayFrom.apply(this, arguments);
-  };
-  try {
-    return parse(code, parserOptions);
-  } finally {
-    Array.from = arrayFrom;
-  }
-}
-
-exports.parse = babelParserVersion.startsWith("7.4.") ? tolerantParse : parse;
+exports.parse = parse;