blankslate-2.1.2.4/0000755000175000017500000000000011677355351013371 5ustar boutilboutilblankslate-2.1.2.4/metadata.yml0000644000175000017500000000322611677355351015677 0ustar boutilboutil--- !ruby/object:Gem::Specification name: blankslate version: !ruby/object:Gem::Version prerelease: version: 2.1.2.4 platform: ruby authors: - Jim Weirich - David Masover - Jack Danger Canty autorequire: bindir: bin cert_chain: [] date: 2011-03-16 00:00:00 -07:00 default_executable: dependencies: - !ruby/object:Gem::Dependency name: rspec prerelease: false requirement: &id001 !ruby/object:Gem::Requirement none: false requirements: - - ">=" - !ruby/object:Gem::Version version: "0" type: :development version_requirements: *id001 - !ruby/object:Gem::Dependency name: bundler prerelease: false requirement: &id002 !ruby/object:Gem::Requirement none: false requirements: - - ">=" - !ruby/object:Gem::Version version: "0" type: :development version_requirements: *id002 description: email: rubygems@6brand.com executables: [] extensions: [] extra_rdoc_files: [] files: - README - Rakefile - VERSION - blankslate.gemspec - lib/blankslate.rb - spec/blankslate_spec.rb has_rdoc: true homepage: http://github.com/masover/blankslate licenses: [] post_install_message: rdoc_options: [] require_paths: - lib required_ruby_version: !ruby/object:Gem::Requirement none: false requirements: - - ">=" - !ruby/object:Gem::Version version: "0" required_rubygems_version: !ruby/object:Gem::Requirement none: false requirements: - - ">=" - !ruby/object:Gem::Version version: "0" requirements: [] rubyforge_project: rubygems_version: 1.6.2 signing_key: specification_version: 3 summary: BlankSlate extracted from Builder. test_files: - spec/blankslate_spec.rb blankslate-2.1.2.4/spec/0000755000175000017500000000000011677355351014323 5ustar boutilboutilblankslate-2.1.2.4/spec/blankslate_spec.rb0000644000175000017500000000140411677355351020001 0ustar boutilboutilrequire 'blankslate' require 'rspec' describe BlankSlate do let(:blank_slate) { BlankSlate.new } def call(obj, meth, *args) BlankSlate.find_hidden_method(meth).bind(obj).call(*args) end describe "cleanliness" do it "should not have many methods" do BlankSlate.instance_methods. map(&:to_s).sort. should == ["__id__", "__send__", "instance_eval", "object_id"] end end context "when methods are added to Object" do after(:each) { class Object undef :foo end } it "should still be blank" do class Object def foo end end Object.new.foo lambda { BlankSlate.new.foo }.should raise_error(NoMethodError) end end endblankslate-2.1.2.4/lib/0000755000175000017500000000000011677355351014137 5ustar boutilboutilblankslate-2.1.2.4/lib/blankslate.rb0000644000175000017500000000654711677355351016620 0ustar boutilboutil#!/usr/bin/env ruby #-- # Copyright 2004, 2006 by Jim Weirich (jim@weirichhouse.org). # All rights reserved. # Permission is granted for use, copying, modification, distribution, # and distribution of modified versions of this work as long as the # above copyright notice is included. #++ ###################################################################### # BlankSlate provides an abstract base class with no predefined # methods (except for \_\_send__ and \_\_id__). # BlankSlate is useful as a base class when writing classes that # depend upon method_missing (e.g. dynamic proxies). # class BlankSlate class << self # Hide the method named +name+ in the BlankSlate class. Don't # hide +instance_eval+ or any method beginning with "__". def hide(name) if instance_methods.map(&:to_sym).include?(name.to_sym) and name !~ /^(__|instance_eval|object_id)/ @hidden_methods ||= {} @hidden_methods[name.to_sym] = instance_method(name) undef_method name end end def find_hidden_method(name) @hidden_methods ||= {} @hidden_methods[name] || superclass.find_hidden_method(name) end # Redefine a previously hidden method so that it may be called on a blank # slate object. def reveal(name) hidden_method = find_hidden_method(name) fail "Don't know how to reveal method '#{name}'" unless hidden_method define_method(name, hidden_method) end end instance_methods.each { |m| hide(m) } end ###################################################################### # Since Ruby is very dynamic, methods added to the ancestors of # BlankSlate after BlankSlate is defined will show up in the # list of available BlankSlate methods. We handle this by defining a # hook in the Object and Kernel classes that will hide any method # defined after BlankSlate has been loaded. # module Kernel class << self alias_method :blank_slate_method_added, :method_added # Detect method additions to Kernel and remove them in the # BlankSlate class. def method_added(name) result = blank_slate_method_added(name) return result if self != Kernel BlankSlate.hide(name) result end end end ###################################################################### # Same as above, except in Object. # class Object class << self alias_method :blank_slate_method_added, :method_added # Detect method additions to Object and remove them in the # BlankSlate class. def method_added(name) result = blank_slate_method_added(name) return result if self != Object BlankSlate.hide(name) result end def find_hidden_method(name) nil end end end ###################################################################### # Also, modules included into Object need to be scanned and have their # instance methods removed from blank slate. In theory, modules # included into Kernel would have to be removed as well, but a # "feature" of Ruby prevents late includes into modules from being # exposed in the first place. # class Module alias blankslate_original_append_features append_features def append_features(mod) result = blankslate_original_append_features(mod) return result if mod != Object instance_methods.each do |name| BlankSlate.hide(name) end result end endblankslate-2.1.2.4/blankslate.gemspec0000644000175000017500000000145511677355351017063 0ustar boutilboutil# -*- encoding: utf-8 -*- $:.push File.expand_path("../lib", __FILE__) require "blankslate" Gem::Specification.new do |s| s.name = "blankslate" s.version = File.read('VERSION') s.platform = Gem::Platform::RUBY s.summary = 'BlankSlate extracted from Builder.' s.email = 'rubygems@6brand.com' s.authors = ['Jim Weirich', 'David Masover', 'Jack Danger Canty'] s.email = "rubygems@6brand.com" s.homepage = "http://github.com/masover/blankslate" s.add_development_dependency 'rspec' s.add_development_dependency 'bundler' s.files = `git ls-files`.split("\n") s.test_files = `git ls-files -- {test,spec,features}/*`.split("\n") s.executables = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) } s.require_paths = ["lib"] end blankslate-2.1.2.4/VERSION0000644000175000017500000000000711677355351014436 0ustar boutilboutil2.1.2.4blankslate-2.1.2.4/Rakefile0000644000175000017500000000037111677355351015037 0ustar boutilboutil require 'bundler' Bundler::GemHelper.install_tasks task :default => :spec require 'rake/testtask' Rake::TestTask.new(:spec) do |test| test.libs << '.' test.ruby_opts = ['-rubygems'] test.pattern = 'spec/*_spec.rb' test.verbose = true end blankslate-2.1.2.4/README0000644000175000017500000000225511677355351014255 0ustar boutilboutilBlankSlate === BlankSlate provides an abstract base class with no predefined methods (except for \_\_send__ and \_\_id__). BlankSlate is useful as a base class when writing classes that depend upon method_missing (e.g. dynamic proxies). Copyright 2004, 2006 by Jim Weirich (jim@weirichhouse.org). All rights reserved. Extracted from Builder because, for no conceivable reason, blankslate isn't in its own gem. Gemified by David Masover, moved to gemcutter by Jack Danger Canty (gemcutter@6brand.com if you'd like to own this gem). Explanation on extraction from David Masover: So, Builder seems to have the most complete implementation of BlankSlate, short of Ruby 1.9's BasicObject. The problem is, this is part of Builder, and still inside the Builder gem. It's especially frustrating, because the Builder source (lib/builder/blankslate.rb) seems to acknowledge that there should be a separate gem. But the only reference I can find refers to onestepback.org's gem repository, which isn't working. So I built my own. I'll try to keep it up to date with Builder. The first three parts of the version number are the Builder version; the last part is my revision.