allow (class|instance)_eval based monkeypatch detection for show-source -a

lib/pry/wrapped_module.rb

@@ -206,13 +206,14 @@ class Pry
 
       return nil if !file.is_a?(String)
 
-      class_regex1 = /#{mod_type_string}\s*(\w*)(::)?#{wrapped.name.split(/::/).last}/
-      class_regex2 = /(::)?#{wrapped.name.split(/::/).last}\s*?=\s*?#{wrapped.class}/
+      class_regexes = [/#{mod_type_string}\s*(\w*)(::)?#{wrapped.name.split(/::/).last}/,
+                       /(::)?#{wrapped.name.split(/::/).last}\s*?=\s*?#{wrapped.class}/,
+                       /(::)?#{wrapped.name.split(/::/).last}\.(class|instance)_eval/]
 
       host_file_lines = lines_for_file(file)
 
       search_lines = host_file_lines[0..(line - 2)]
-      idx = search_lines.rindex { |v| class_regex1 =~ v  || class_regex2 =~ v }
+      idx = search_lines.rindex { |v| class_regexes.any? { |r| r =~ v } }
 
       [file,  idx + 1]
     rescue Pry::RescuableException

test/helper.rb

@@ -46,6 +46,17 @@ class TestClassForShowSource
   end
 end
 
+class TestClassForShowSourceClassEval
+  def alpha
+  end
+end
+
+class TestClassForShowSourceInstanceEval
+  def alpha
+  end
+end
+
+
 # in case the tests call reset_defaults, ensure we reset them to
 # amended (test friendly) values
 class << Pry

test/test_default_commands/test_show_source.rb

@@ -289,6 +289,9 @@ if !mri18_and_no_real_source_location?
         end
       end
 
+      # note that pry assumes a class is only monkey-patched at most
+      # ONCE per file, so will not find multiple monkeypatches in the
+      # SAME file.
       describe "show-source -a" do
         it 'should show the source for all monkeypatches defined in different files' do
           class TestClassForShowSource
@@ -300,6 +303,26 @@ if !mri18_and_no_real_source_location?
           result.should =~ /def alpha/
           result.should =~ /def beta/
         end
+
+        it 'should show the source for a class_eval-based monkeypatch' do
+          TestClassForShowSourceClassEval.class_eval do
+            def class_eval_method
+            end
+          end
+
+          result = mock_pry("show-source TestClassForShowSourceClassEval -a")
+          result.should =~ /def class_eval_method/
+        end
+
+        it 'should show the source for an instance_eval-based monkeypatch' do
+          TestClassForShowSourceInstanceEval.instance_eval do
+            def instance_eval_method
+            end
+          end
+
+          result = mock_pry("show-source TestClassForShowSourceInstanceEval -a")
+          result.should =~ /def instance_eval_method/
+        end
       end
     end
   end