From 25bc3b9bc038db4e961388782ae3204f303f653b Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Sun, 28 Jul 2013 13:20:09 -0700
Subject: [PATCH] Add block_pass mutator

---
 lib/mutant.rb                                 |  1 +
 lib/mutant/mutator/node/block_pass.rb         | 25 +++++++++++++++++++
 lib/mutant/mutator/node/generic.rb            |  2 +-
 .../mutator/node/block_pass/mutation_spec.rb  | 12 +++++++++
 4 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 lib/mutant/mutator/node/block_pass.rb
 create mode 100644 spec/unit/mutant/mutator/node/block_pass/mutation_spec.rb

diff --git a/lib/mutant.rb b/lib/mutant.rb
index 92426015..7363e410 100644
--- a/lib/mutant.rb
+++ b/lib/mutant.rb
@@ -57,6 +57,7 @@ require 'mutant/mutator/node/literal/nil'
 require 'mutant/mutator/node/argument'
 require 'mutant/mutator/node/arguments'
 require 'mutant/mutator/node/begin'
+require 'mutant/mutator/node/block_pass'
 require 'mutant/mutator/node/cbase'
 require 'mutant/mutator/node/connective/binary'
 require 'mutant/mutator/node/const'
diff --git a/lib/mutant/mutator/node/block_pass.rb b/lib/mutant/mutator/node/block_pass.rb
new file mode 100644
index 00000000..65615c7f
--- /dev/null
+++ b/lib/mutant/mutator/node/block_pass.rb
@@ -0,0 +1,25 @@
+module Mutant
+  class Mutator
+    class Node
+
+      # Mutation emitter to handle block_pass nodes
+      class BlockPass < self
+
+        handle(:block_pass)
+
+      private
+
+        # Emit mutations
+        #
+        # @return [undefined]
+        #
+        # @api private
+        #
+        def dispatch
+          # noop, for now
+        end
+
+      end # BlockPass
+    end # Node
+  end # Mutator
+end # Mutant
diff --git a/lib/mutant/mutator/node/generic.rb b/lib/mutant/mutator/node/generic.rb
index 149b9782..a648e848 100644
--- a/lib/mutant/mutator/node/generic.rb
+++ b/lib/mutant/mutator/node/generic.rb
@@ -11,7 +11,7 @@ module Mutant
           :defined,
           :next, :break, :match, :ensure,
           :dstr, :dsym, :yield, :rescue, :redo, :defined?,
-          :blockarg, :block_pass, :op_asgn, :and_asgn,
+          :blockarg, :op_asgn, :and_asgn,
           :regopt, :restarg, :resbody, :retry, :arg_expr,
           :kwrestarg, :kwoptarg, :kwarg, :undef, :module, :empty,
           :alias, :for, :xstr, :back_ref, :nth_ref, :class,
diff --git a/spec/unit/mutant/mutator/node/block_pass/mutation_spec.rb b/spec/unit/mutant/mutator/node/block_pass/mutation_spec.rb
new file mode 100644
index 00000000..628a824c
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/block_pass/mutation_spec.rb
@@ -0,0 +1,12 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::NamedValue::Access, 'block_pass' do
+  let(:source) { 'foo(&bar)' }
+
+  let(:mutations) do
+    mutants = []
+    mutants << 'foo'
+  end
+
+  it_should_behave_like 'a mutator'
+end