[PATCH] remove optimizations which made sense for older rubies

[Eric Wong <e@80x24.org>]

Since Ruby 2.2, frozen string literals are implied for Hash#[]
lookups.  Constant lookups have inline caching since Ruby 1.9
(from YARV).

Ruby 1.8.7 will continue to be supported, but the code will
favor performance features of newer Rubies.
---
 lib/raindrops/aggregate/last_data_recv.rb | 6 +-----
 lib/raindrops/middleware.rb               | 3 +--
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/lib/raindrops/aggregate/last_data_recv.rb b/lib/raindrops/aggregate/last_data_recv.rb
index eca89a2..6919fbc 100644
--- a/lib/raindrops/aggregate/last_data_recv.rb
+++ b/lib/raindrops/aggregate/last_data_recv.rb
@@ -13,10 +13,6 @@
 # - Kgio::TCPServer#kgio_accept
 # - Kgio::TCPServer#kgio_tryaccept
 module Raindrops::Aggregate::LastDataRecv
-  # :stopdoc:
-  TCP_Info = Raindrops::TCP_Info
-  # :startdoc:
-
   # The integer value of +last_data_recv+ is sent to this object.
   # This is usually a duck type compatible with the \Aggregate class,
   # but can be *anything* that accepts the *<<* method.
@@ -78,7 +74,7 @@ def accept_nonblock
   # +last_data_recv+ to be accurate
   def count!(io)
     if io
-      x = TCP_Info.new(io)
+      x = Raindrops::TCP_Info.new(io)
       @raindrops_aggregate << x.last_data_recv
     end
     io
diff --git a/lib/raindrops/middleware.rb b/lib/raindrops/middleware.rb
index 7c647ec..bf16924 100644
--- a/lib/raindrops/middleware.rb
+++ b/lib/raindrops/middleware.rb
@@ -81,7 +81,6 @@ class Stats < Raindrops::Struct.new(:calling, :writing)
   end
 
   # :stopdoc:
-  PATH_INFO = "PATH_INFO"
   require "raindrops/middleware/proxy"
   # :startdoc:
 
@@ -111,7 +110,7 @@ def initialize(app, opts = {})
 
   # standard Rack endpoint
   def call(env) # :nodoc:
-    env[PATH_INFO] == @path and return stats_response
+    env['PATH_INFO'] == @path and return stats_response
     begin
       @stats.incr_calling
 
-- 
EW