From: Larry Hastings <larry@hastings.org>
Date: Sun, 12 Jan 2014 16:49:30 +0000 (-0800)
Subject: Issue #20196: Fixed a bug where Argument Clinic did not generate correct
X-Git-Tag: v3.4.0b3~170
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=583baa8fef6b69d32b8c41b777c879e387ea46e3;p=thirdparty%2FPython%2Fcpython.git

Issue #20196: Fixed a bug where Argument Clinic did not generate correct
parsing code for functions with positional-only parameters where all arguments
are optional.
---

diff --git a/Misc/NEWS b/Misc/NEWS
index d73137eb40ac..d6be619d2f1c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -72,6 +72,10 @@ Tests
 Tools/Demos
 -----------
 
+- Issue #20196: Fixed a bug where Argument Clinic did not generate correct
+  parsing code for functions with positional-only parameters where all arguments
+  are optional.
+
 - Issue #18960: 2to3 and the findnocoding.py script now ignore the source
   encoding declaration on the second line if the first line contains anything
   except a comment.
diff --git a/Tools/clinic/clinic.py b/Tools/clinic/clinic.py
index 421b9e3d3969..cd7c597f5335 100755
--- a/Tools/clinic/clinic.py
+++ b/Tools/clinic/clinic.py
@@ -591,6 +591,12 @@ static {impl_return_type}
             count_min = min(count_min, count)
             count_max = max(count_max, count)
 
+            if count == 0:
+                add("""    case 0:
+        break;
+""")
+                continue
+
             group_ids = {p.group for p in subset}  # eliminate duplicates
             d = {}
             d['count'] = count