--- a/hgext3rd/topic/revset.py Thu Jun 29 00:11:07 2017 +0530
+++ b/hgext3rd/topic/revset.py Thu Jun 29 01:58:26 2017 +0530
@@ -71,6 +71,8 @@
This is roughly equivalent to 'topic(.) - obsolete' with a sorting moving
unstable changeset after there future parent (as if evolve where already
run)."""
+ err = 'stack() takes no argument, it works on current topic'
+ revset.getargs(x, 0, 0, err)
topic = repo.currenttopic
if not topic:
raise error.Abort(_('no active topic to list'))
--- a/tests/test-topic-stack.t Thu Jun 29 00:11:07 2017 +0530
+++ b/tests/test-topic-stack.t Thu Jun 29 01:58:26 2017 +0530
@@ -216,6 +216,14 @@
4 default {foo} draft c_e
5 default {foo} draft c_f
+ $ hg log -r 'stack(foo)'
+ hg: parse error: stack() takes no argument, it works on current topic
+ [255]
+
+ $ hg log -r 'stack(foobar)'
+ hg: parse error: stack() takes no argument, it works on current topic
+ [255]
+
Case with multiple heads on the topic
-------------------------------------