first attempt at bringing show-method to eval methods

lib/pry/helpers/command_helpers.rb

@@ -43,7 +43,7 @@ class Pry
 
       def check_for_dynamically_defined_method(meth)
         file, _ = meth.source_location
-        if file =~ /(\(.*\))|<.*>/
+        if file =~ /(\(.*\))|<.*>/ && file != "(pry)"
           raise "Cannot retrieve source for dynamically defined method."
         end
       end
@@ -61,7 +61,11 @@ class Pry
           code = Pry::MethodInfo.info_for(meth).source
           code = strip_comments_from_c_code(code)
         when :ruby
-          code = strip_leading_whitespace(meth.source)
+          if meth.source_location.first == "(pry)"
+            code = strip_leading_whitespace(Pry.expr_store[meth.source_location.last])
+          else
+            code = strip_leading_whitespace(meth.source)
+          end
           set_file_and_dir_locals(meth.source_location.first)
         end
 

lib/pry/pry_class.rb

@@ -116,6 +116,12 @@ class Pry
     # @return [OpenStruct] Return Pry's config object.
     attr_accessor :config
 
+    # @return [Fixnum] The current input line.
+    attr_accessor :current_expr
+
+    # @return [Array] The Array of evaluated expressions.
+    attr_accessor :expr_store
+
     # plugin forwardables
     def_delegators :@plugin_manager, :plugins, :load_plugins, :locate_plugins
 
@@ -226,7 +232,7 @@ class Pry
     end
   end
 
-  def self.set_config_options
+  def self.set_config_defaults
     config.input = Readline
     config.output = $stdout
     config.commands = Pry::Commands
@@ -241,12 +247,14 @@ class Pry
 
   # Set all the configurable options back to their default values
   def self.reset_defaults
-    set_config_options
+    set_config_defaults
 
     @custom_completions = DEFAULT_CUSTOM_COMPLETIONS
     @should_load_rc = true
     @rc_loaded = false
     @cli = false
+    @current_expr = -1
+    @expr_store = []
   end
 
   # Basic initialization.

lib/pry/pry_instance.rb

@@ -27,10 +27,10 @@ class Pry
   #   component of the REPL. (see print.rb)
   def initialize(options={})
     defaults   = {}
-    attributes = [ 
+    attributes = [
                    :input, :output, :commands, :print,
                    :exception_handler, :hooks, :custom_completions,
-                   :prompt 
+                   :prompt
                  ]
 
     attributes.each do |attribute|
@@ -40,13 +40,13 @@ class Pry
     defaults.merge!(options).each_key do |key|
       send "#{key}=", defaults[key]
     end
- 
+
     @command_processor = CommandProcessor.new(self)
   end
 
-  # The current prompt.  
+  # The current prompt.
   # This is the prompt at the top of the prompt stack.
-  # 
+  #
   # @example
   #    self.prompt = Pry::SIMPLE_PROMPT
   #    self.prompt # => Pry::SIMPLE_PROMPT
@@ -189,7 +189,10 @@ class Pry
     # Do not want __FILE__, __LINE__ here because we need to distinguish
     # (eval) methods for show-method and friends.
     # This also sets the `_` local for the session.
-    set_last_result(target.eval(r(target)), target)
+    expr = r(target)
+
+    Pry.expr_store << expr
+    set_last_result(target.eval(expr, "(pry)", Pry.current_expr += 1), target)
   rescue SystemExit => e
     exit
   rescue Exception => e