Removing this feature causes boost in performance when using Ruby 1.9.
Ruby 1.9 started to do implicit conversions using `to_ary` and `to_str`
in some STDLIB methods (like Array#join). To do such implicit conversions,
Ruby 1.9 always dispatches the method and rescues the NoMethodError exception
in case one is raised.
Therefore, since the whiners feature defined NilClass#method_missing, such
implicit conversions for nil became much, much slower. In fact, just defining
NilClass#method_missing (even without the whiners feature) already causes a
massive slow down. Here is a snippet that shows such slow down:
require "benchmark"
Benchmark.realtime { 1_000.times { [nil,nil,nil].join } }
class NilClass
def method_missing(*args)
raise NoMethodError
end
end
Benchmark.realtime { 1_000.times { [nil,nil,nil].join } }
add lazy_load_hooks.rb, which allows us to declare code that
should be run at some later time. For instance, this allows
us to defer requiring ActiveRecord::Base at boot time purely
to apply configuration. Instead, we register a hook that should
apply configuration once ActiveRecord::Base is loaded.
With these changes, brings down total boot time of a
new app to 300ms in production and 400ms in dev.
TODO: rename base_hook
Check whether @flash is defined? for warnings-safety.
r4488@asus: jeremy | 2006-04-29 12:23:15 -0700
Check whether @flash is defined? for warnings-safety. Obviates nil? check.
r4489@asus: jeremy | 2006-04-29 12:45:18 -0700
Check whether @session is defined? for warnings-safety.
r4490@asus: jeremy | 2006-04-29 12:50:41 -0700
Check whether @rendering_runtime is defined? for warnings-safety.
r4491@asus: jeremy | 2006-04-29 12:55:01 -0700
Check whether @_cycles is defined? for warnings-safety.
r4492@asus: jeremy | 2006-04-29 12:59:19 -0700
Check whether instance variables are defined? for warnings-safety.
r4493@asus: jeremy | 2006-04-29 13:14:09 -0700
Add nil @template to PrototypeHelperTest to suppress unitialized instance variable warning.
r4494@asus: jeremy | 2006-04-29 13:31:34 -0700
Check whether @auto_index defined? for warnings-safety.
r4495@asus: jeremy | 2006-04-29 13:32:24 -0700
Wrap content_columns redefinitions with silence_warnings.
r4496@asus: jeremy | 2006-04-29 13:35:28 -0700
Wrap more redefinitions with silence_warnings.
r4829@asus: jeremy | 2006-07-08 10:59:20 -0700
abstract unit, fix warnings
r4830@asus: jeremy | 2006-07-08 11:06:12 -0700
Use parens to silence warning.
r4831@asus: jeremy | 2006-07-08 11:06:48 -0700
Use parens to silence warning.
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4595 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
José Valim