From f8cb7461d4d0f40e6e15517279c0219214bbf1de Mon Sep 17 00:00:00 2001
From: Kai Cataldo <kaicataldo@gmail.com>
Date: Tue, 6 Nov 2018 21:15:57 -0500
Subject: [PATCH] Implement parsing use @babel/core#parse

---
 lib/parse.js         | 77 ++++++++++++++++++++++----------------------
 test/babel-eslint.js |  2 +-
 2 files changed, 40 insertions(+), 39 deletions(-)

diff --git a/lib/parse.js b/lib/parse.js
index d133b56b..71c0efa2 100644
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -1,8 +1,7 @@
 "use strict";
 
 const babylonToEspree = require("./babylon-to-espree");
-const parse = require("@babel/parser").parse;
-const traverse = require("@babel/core").traverse;
+const { parseSync: parse, traverse } = require("@babel/core");
 const tt = require("@babel/parser").tokTypes;
 
 module.exports = function(code, options) {
@@ -11,42 +10,44 @@ module.exports = function(code, options) {
 
   const opts = {
     sourceType: options.sourceType,
-    allowImportExportEverywhere: options.allowImportExportEverywhere, // consistent with espree
-    allowReturnOutsideFunction: true,
-    allowSuperOutsideMethod: true,
-    ranges: true,
-    tokens: true,
-    plugins: [
-      ["flow", { all: true }],
-      "jsx",
-      "estree",
-      "asyncFunctions",
-      "asyncGenerators",
-      "classConstructorCall",
-      "classProperties",
-      legacyDecorators
-        ? "decorators-legacy"
-        : ["decorators", { decoratorsBeforeExport: false }],
-      "doExpressions",
-      "exponentiationOperator",
-      "exportDefaultFrom",
-      "exportNamespaceFrom",
-      "functionBind",
-      "functionSent",
-      "objectRestSpread",
-      "trailingFunctionCommas",
-      "dynamicImport",
-      "numericSeparator",
-      "optionalChaining",
-      "importMeta",
-      "classPrivateProperties",
-      "bigInt",
-      "optionalCatchBinding",
-      "throwExpressions",
-      ["pipelineOperator", { proposal: "minimal" }],
-      "nullishCoalescingOperator",
-      "logicalAssignment",
-    ],
+    parserOpts: {
+      allowImportExportEverywhere: options.allowImportExportEverywhere, // consistent with espree
+      allowReturnOutsideFunction: true,
+      allowSuperOutsideMethod: true,
+      ranges: true,
+      tokens: true,
+      plugins: [
+        ["flow", { all: true }],
+        "jsx",
+        "estree",
+        "asyncFunctions",
+        "asyncGenerators",
+        "classConstructorCall",
+        "classProperties",
+        legacyDecorators
+          ? "decorators-legacy"
+          : ["decorators", { decoratorsBeforeExport: false }],
+        "doExpressions",
+        "exponentiationOperator",
+        "exportDefaultFrom",
+        "exportNamespaceFrom",
+        "functionBind",
+        "functionSent",
+        "objectRestSpread",
+        "trailingFunctionCommas",
+        "dynamicImport",
+        "numericSeparator",
+        "optionalChaining",
+        "importMeta",
+        "classPrivateProperties",
+        "bigInt",
+        "optionalCatchBinding",
+        "throwExpressions",
+        ["pipelineOperator", { proposal: "minimal" }],
+        "nullishCoalescingOperator",
+        "logicalAssignment",
+      ],
+    },
   };
 
   let ast;
diff --git a/test/babel-eslint.js b/test/babel-eslint.js
index ce270f11..4fc181da 100644
--- a/test/babel-eslint.js
+++ b/test/babel-eslint.js
@@ -541,7 +541,7 @@ describe("Public API", () => {
   it("exports a parseNoPatch function", () => {
     assertImplementsAST(
       espree.parse("foo"),
-      babelEslint.parseNoPatch("foo", {})
+      babelEslint.parseNoPatch("foo", { sourceType: "script" })
     );
   });
 });