From c1aafef03dde690367bb94601b3dc794c812937a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9e=20Kooi?= <renee@kooi.me>
Date: Sun, 24 Dec 2017 14:22:16 +0100
Subject: [PATCH 1/2] Add `sourceType` option

---
 index.js            |  1 +
 readme.markdown     |  1 +
 test/esm.js         | 23 +++++++++++++++++++++++
 test/sources/esm.js |  2 ++
 4 files changed, 27 insertions(+)
 create mode 100644 test/esm.js
 create mode 100644 test/sources/esm.js

diff --git a/index.js b/index.js
index fed565c..c8528da 100644
--- a/index.js
+++ b/index.js
@@ -2,6 +2,7 @@ var aparse = require('acorn').parse;
 function parse (src, opts) {
     if (!opts) opts = {}
     return aparse(src, {
+        sourceType: opts.sourceType || 'string',
         ecmaVersion: opts.ecmaVersion || 8,
         allowHashBang: true
     });
diff --git a/readme.markdown b/readme.markdown
index 7025150..0e09f2c 100644
--- a/readme.markdown
+++ b/readme.markdown
@@ -58,6 +58,7 @@ If there are no syntax errors in `src`, return `undefined`.
 Optionally set:
 
 * `opts.ecmaVersion` - default: 8
+* `opts.sourceType` - default: 'script'
 
 ## err.toString()
 
diff --git a/test/esm.js b/test/esm.js
new file mode 100644
index 0000000..ab475d2
--- /dev/null
+++ b/test/esm.js
@@ -0,0 +1,23 @@
+var test = require('tap').test;
+
+var fs = require('fs');
+var check = require('../');
+
+var file = __dirname + '/sources/esm.js';
+var src = fs.readFileSync(file);
+
+test('esm with sourceType script', function (t) {
+    var err = check(src, file);
+    t.ok(err);
+    t.equal(err.line, 1);
+    t.equal(err.column, 1);
+    t.equal(err.message, "'import' and 'export' may appear only with 'sourceType: module'");
+    t.ok(String(err).indexOf(file + ':1'));
+    t.end();
+});
+
+test('esm with sourceType module', function (t) {
+    var err = check(src, file, { sourceType: 'module' });
+    t.notOk(err);
+    t.end();
+});
diff --git a/test/sources/esm.js b/test/sources/esm.js
new file mode 100644
index 0000000..220e115
--- /dev/null
+++ b/test/sources/esm.js
@@ -0,0 +1,2 @@
+import x from 'y';
+export default z;

From 24df74785787044a9093e8e8e2e9927c412e67f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9e=20Kooi?= <renee@kooi.me>
Date: Sun, 24 Dec 2017 14:25:24 +0100
Subject: [PATCH 2/2] s/string/script

---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index c8528da..c06177a 100644
--- a/index.js
+++ b/index.js
@@ -2,7 +2,7 @@ var aparse = require('acorn').parse;
 function parse (src, opts) {
     if (!opts) opts = {}
     return aparse(src, {
-        sourceType: opts.sourceType || 'string',
+        sourceType: opts.sourceType || 'script',
         ecmaVersion: opts.ecmaVersion || 8,
         allowHashBang: true
     });