[PATCH 4 of 4] log: add TODO comments about --line-range processing

[Yuya Nishihara]

# HG changeset patch
# User Yuya Nishihara <yuya at tcha.org>
# Date 1516521882 -32400
#      Sun Jan 21 17:04:42 2018 +0900
# Node ID 3dd9becb635b9e077b53f140c65f349cb0776991
# Parent  e5ba72e0361bb859b1688ab1bc620c6ca870d951
log: add TODO comments about --line-range processing

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -3414,6 +3414,7 @@ def log(ui, repo, *pats, **opts):
         raise error.Abort(_('--line-range requires --follow'))
 
     if linerange and pats:
+        # TODO: take pats as patterns with no line-range filter
         raise error.Abort(
             _('FILE arguments are not compatible with --line-range option')
         )
@@ -3421,6 +3422,8 @@ def log(ui, repo, *pats, **opts):
     repo = scmutil.unhidehashlikerevs(repo, opts.get('rev'), 'nowarn')
     revs, differ = logcmdutil.getrevs(repo, pats, opts)
     if linerange:
+        # TODO: should follow file history from logcmdutil._initialrevs(),
+        # then filter the result by logcmdutil._makerevset() and --limit
         revs, differ = logcmdutil.getlinerangerevs(repo, revs, opts)
 
     getrenamed = None