Fixed some breakpoint issues and made breakpoint_client depend on act…

…iverecord/support instead of duplicating the files in railties rails#441 [Florian Gross]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@424 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/lib/breakpoint.rb

@@ -21,6 +21,9 @@
 require 'drb/acl'
 
 module Breakpoint
+  id = %q$Id$
+  Version = id.split(" ")[2].to_i
+
   extend self
 
   # This will pop up an interactive ruby session at a
@@ -133,15 +136,24 @@ def eval(code)
       end
 
       # Will execute the specified statement at the client.
-      def method_missing(method, *args)
-        if args.empty?
-          result = eval("#{method}")
+      def method_missing(method, *args, &block)
+        if args.empty? and not block
+          result = eval "#{method}"
         else
           result = eval("#{method}(*Marshal.load(#{Marshal.dump(args).inspect}))")
-        end
-
-        unless [true, false, nil].include?(result)
-          result.extend(DRbUndumped) if result
+          # This is a bit ugly. The alternative would be using an
+          # eval context instead of an eval handler for executing
+          # the code at the client. The problem with that approach
+          # is that we would have to handle special expressions
+          # like "self", "nil" or constants ourself which is hard.
+          remote = eval %{
+            result = lambda { |block, *args| #{method}(*args, &block) }
+            def result.call_with_block(*args, &block)
+              call(block, *args)
+            end
+            result
+          }
+          remote.call_with_block(*args, &block)
         end
 
         return result
@@ -175,6 +187,7 @@ def source_lines(context = 5, return_line_numbers = false)
     #   client.File.open("temp.txt", "w") { |f| f.puts "Hello" } 
     def client()
       if Breakpoint.use_drb? then
+        sleep(0.5) until Breakpoint.drb_service.eval_handler
         Client.new(Breakpoint.drb_service.eval_handler)
       else
         Client.new(lambda { |code| eval(code, TOPLEVEL_BINDING) })
@@ -279,7 +292,7 @@ def collision
       @collision_handler.call
     end
 
-    def ping; end
+    def ping() end
 
     def add_breakpoint(context, message)
       workspace = IRB::WorkSpace.new(context)
@@ -290,31 +303,7 @@ def add_breakpoint(context, message)
       @handler.call(workspace, message)
     end
 
-    def register_handler(&block)
-      @handler = block
-    end
-
-    def unregister_handler
-      @handler = nil
-    end
-
-    attr_reader :eval_handler
-
-    def register_eval_handler(&block)
-      @eval_handler = block
-    end
-
-    def unregister_eval_handler
-      @eval_handler = lambda { }
-    end
-
-    def register_collision_handler(&block)
-      @collision_handler = block
-    end
-
-    def unregister_collision_handler
-      @collision_handler = lambda { }
-    end
+    attr_accessor :handler, :eval_handler, :collision_handler
   end
 
   # Will run Breakpoint in DRb mode. This will spawn a server
@@ -507,8 +496,8 @@ def self.eval(code, context, *more)
 
 module DRb # :nodoc:
   class DRbObject#:nodoc:
-    undef :inspect
-    undef :clone
+    undef :inspect if method_defined?(:inspect)
+    undef :clone if method_defined?(:clone)
   end
 end
 

railties/bin/breakpointer

@@ -1,3 +1,4 @@
 #!/usr/local/bin/ruby
 $LOAD_PATH << File.dirname(__FILE__) + '/../vendor/railties/lib'
+$LOAD_PATH << File.dirname(__FILE__) + '/../vendor/activerecord/lib/support'
 require 'breakpoint_client'