autotest/discover.rb autotest/rspec_test.rb examples/node.rb test/method_missing.mkd @@ -40,7 +40,7 @@ module ContextR # :nodoc: if stack.size == 1 stack.pop.call(*arguments, &block) else - stack.pop.__send__(method_name, *arguments) do | action, *rest_args | + stack.pop.__send__(method_name, *arguments) do |action, *rest_args| case action when :receiver receiver @@ -51,6 +51,7 @@ module ContextR # :nodoc: when :block_given? !block.nil? when :next + rest_args.shift if method_name != :method_missing call_methods_stack(stack, receiver, method_name, rest_args, block) else raise ArgumentError, "Use only :receiver, :block, :block_given?, " + lib/contextr/class_methods.rb @@ -40,7 +40,7 @@ module ContextR instance_methods.each { |m| hide(m) } - def method_missing(method_name, *rest_args) + def method_missing(*rest_args) if block_given? yield(:next, *rest_args) else lib/contextr/inner_class.rb @@ -101,7 +101,7 @@ Now let's compute Fib(100) again. Of course with caching enabled example do timeout_raised = false begin - Timeout::timeout(0.05) do + Timeout::timeout(0.1) do ContextR::with_layer :cache do result_of(Fibonacci.compute(100)) == 354_224_848_179_261_915_075 end test/layer_state.mkd @@ -9,10 +9,10 @@ class Fixnum return 'th' if (10..19).include?(self % 100) # others case self % 10 - when 1: return 'st' - when 2: return 'nd' - when 3: return 'rd' - else return 'th' + when 1 then return 'st' + when 2 then return 'nd' + when 3 then return 'rd' + else return 'th' end end end test/lib/literate_maruku_test.rb @@ -4,7 +4,7 @@ that are used internally in ContextR. Extending them would simply result in endless stacks. In custom classes, i.e. classes defined by your code, every method may be -extended. There are only 4 exceptions and one corner case. +extended. There are only 4 exceptions. First the exceptions. You may never extend @@ -13,54 +13,9 @@ First the exceptions. You may never extend * `__clone__` * `extend` -The first shall not be redefined in any case. That is why this triggers a +The first shall not be redefined anyway. That is why it triggers a warning. The latter is used by ContextR. This currently cannot be circumvented. -`method_missing` ----------------- - -`method_missing` is the corner case. It is used in ContextR as well, and its -redefinition is difficult, but since the functionality of method missing is -one of the core ingredients of cleanly designed Ruby programs, it is still -possible to extend it with context-dependent behaviour. There is one simple -limitation. Do not use `super` to call the next layer, but use `yield(:next)` -instead. - -The following code will show the right usage. - - class MethodMissingExample - def method_missing(*a) - "base" - end - - in_layer :one do - def method_missing(*a) - "pre_one " + yield(:next, *a) - end - end - in_layer :two do - def method_missing(*a) - yield(:next, *a) + " post_two" - end - end - end - - example do - instance = MethodMissingExample.new - result_of(instance.any_method) == "base" - - ContextR::with_layer :one do - result_of(instance.any_method) == "pre_one base" - end - ContextR::with_layer :two do - result_of(instance.any_method) == "base post_two" - end - - ContextR::with_layer :one, :two do - result_of(instance.any_method) == "pre_one base post_two" - end - end - Accessing `self` ---------------- test/restrictions.mkd @@ -8,7 +8,7 @@ require File.dirname(__FILE__) + "/test_helper.rb" %w(class_side dynamic_scope dynamics hello_world introduction - layer_state meta_api ordering restrictions).each do |test| + layer_state meta_api method_missing ordering restrictions).each do |test| test_class("test_#{test}".camelcase.to_sym) LiterateMarukuTest.load(test) end test/test_contextr.rb c8ce85281c9b397cc5e35c8ac342c8e420cda34c schmidt schmidt@b232672f-569e-4225-9534-19f781cde581 http://github.com/schmidt/contextr/commit/6ef36a275f2ff13e8f67d48558704bedaf6a9f0e 6ef36a275f2ff13e8f67d48558704bedaf6a9f0e 2008-01-08T06:04:50-08:00 2008-01-08T06:04:50-08:00 * method_missing - works much better now * added example from Hirschfeld paper * added autotest folder - now runs specs and tests in parallel * literate_maruku_test is now 1.9 aware git-svn-id: svn+ssh://rubyforge.org/var/svn/contextr/trunk@86 b232672f-569e-4225-9534-19f781cde581 58a1d4f5abac29e9aa93ae037fafc0d76303253f schmidt schmidt@b232672f-569e-4225-9534-19f781cde581