From 67ebb6acac59ecc76a1e5d47ba4cc46a8dea79b1 Mon Sep 17 00:00:00 2001
From: Dave Halter <davidhalter88@gmail.com>
Date: Sat, 4 Apr 2020 23:14:10 +0200
Subject: [PATCH] async is actually a token that cannot appear in brackets

---
 parso/python/tokenize.py |  2 ++
 test/test_diff_parser.py | 22 ++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/parso/python/tokenize.py b/parso/python/tokenize.py
index f490bb0..8a878cb 100644
--- a/parso/python/tokenize.py
+++ b/parso/python/tokenize.py
@@ -258,6 +258,8 @@ def _create_token_collection(version_info):
 
     ALWAYS_BREAK_TOKENS = (';', 'import', 'class', 'def', 'try', 'except',
                            'finally', 'while', 'with', 'return')
+    if version_info >= (3, 5):
+        ALWAYS_BREAK_TOKENS += ('async',)
     pseudo_token_compiled = _compile(PseudoToken)
     return TokenCollection(
         pseudo_token_compiled, single_quoted, triple_quoted, endpats,
diff --git a/test/test_diff_parser.py b/test/test_diff_parser.py
index a8950bc..5c33d7b 100644
--- a/test/test_diff_parser.py
+++ b/test/test_diff_parser.py
@@ -1487,3 +1487,25 @@ def test_invalid_function(differ):
         ''')
     differ.initialize(code1)
     differ.parse(code2, parsers=1, copies=1, expect_error_leaves=True)
+
+
+def test_async_func2(differ):
+    code1 = dedent('''\
+        async def foo():
+            return ''
+        @bla
+        async def foo():
+            x
+        ''')
+    code2 = dedent('''\
+        async def foo():
+            return ''
+
+          {
+        @bla
+        async def foo():
+            x
+          y
+        ''')
+    differ.initialize(code1)
+    differ.parse(code2, parsers=2, copies=1, expect_error_leaves=True)