From 0f0a870e0d74c2152d71306109f8d3db54239162 Mon Sep 17 00:00:00 2001
From: Jesse Bowes <jessebowes@noragh.com>
Date: Thu, 25 Aug 2016 09:54:44 -0600
Subject: [PATCH] #156 Remove arguments on clear

---
 lib/rake/task.rb       |  9 ++++++++-
 test/test_rake_task.rb | 15 ++++++++++++++-
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/lib/rake/task.rb b/lib/rake/task.rb
index 1f4f591d5..b1356ed89 100644
--- a/lib/rake/task.rb
+++ b/lib/rake/task.rb
@@ -141,11 +141,12 @@ def reenable
       @already_invoked = false
     end
 
-    # Clear the existing prerequisites and actions of a rake task.
+    # Clear the existing prerequisites, actions, comments, and arguments of a rake task.
     def clear
       clear_prerequisites
       clear_actions
       clear_comments
+      clear_args
       self
     end
 
@@ -167,6 +168,12 @@ def clear_comments
       self
     end
 
+    # Clear the existing arguments on a rake task.
+    def clear_args
+      @arg_names = nil
+      self
+    end
+
     # Invoke the task if it is needed.  Prerequisites are invoked first.
     def invoke(*args)
       task_args = TaskArguments.new(arg_names, args)
diff --git a/test/test_rake_task.rb b/test/test_rake_task.rb
index 9a4c3fc23..91185257c 100644
--- a/test/test_rake_task.rb
+++ b/test/test_rake_task.rb
@@ -112,11 +112,12 @@ def test_can_double_invoke_with_reenable
 
   def test_clear
     desc "a task"
-    t = task("t" => "a") { }
+    t = task("t", ["b"] => "a") { }
     t.clear
     assert t.prerequisites.empty?, "prerequisites should be empty"
     assert t.actions.empty?, "actions should be empty"
     assert_nil t.comment, "comments should be empty"
+    assert_empty t.arg_names, "arg names should be empty"
   end
 
   def test_clear_prerequisites
@@ -148,6 +149,18 @@ def test_clear_comments
     assert_equal 1, task(:foo).actions.size
   end
 
+  def test_clear_args
+    task :foo, [:x] do
+      # Dummy action
+    end
+
+    task(:foo).clear_args
+
+    task :foo
+
+    assert_empty task(:foo).arg_names
+  end
+
   def test_find
     task :tfind
     assert_equal "tfind", Task[:tfind].name