lib/uri: performance improvements [misc #10628]

* lib/uri/generic.rb (split_userinfo): fstring for 1-byte split
  (set_port): reduce bytecode size
  (check_path): reduce garbage via opt_str_freeze
  (query=): ditto
  (fragment=): ditto
  [misc #10628]
* lib/uri/rfc3986_parser.rb (regexp): cache as attr
  (initialize): setup and freeze regexp attr once
  (split): reduce bytecode size, use opt_str_freeze
  (parse): minor bytecode and garbage reduction
  (default_regexp): rename for initialize

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48980 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 14 deletions

diff --git a/lib/uri/generic.rb b/lib/uri/generic.rb
index bacd90382d..5c134e5924 100644
--- a/lib/uri/generic.rb
+++ b/lib/uri/generic.rb
@@ -543,7 +543,7 @@ module URI
     # if properly formatted as 'user:password'
     def split_userinfo(ui)
       return nil, nil unless ui
-      user, password = ui.split(/:/, 2)
+      user, password = ui.split(':'.freeze, 2)
 
       return user, password
     end
@@ -695,13 +695,7 @@ module URI
     # see also URI::Generic.port=
     #
     def set_port(v)
-      unless !v || v.kind_of?(Fixnum)
-        if v.empty?
-          v = nil
-        else
-          v = v.to_i
-        end
-      end
+      v = v.empty? ? nil : v.to_i unless !v || v.kind_of?(Fixnum)
       @port = v
     end
     protected :set_port
@@ -768,13 +762,14 @@ module URI
 
       # If scheme is ftp, path may be relative.
       # See RFC 1738 section 3.2.2, and RFC 2396.
-      if @scheme && @scheme != "ftp"
-        if v && v != '' && parser.regexp[:ABS_PATH] !~ v
+      if @scheme && @scheme != "ftp".freeze
+        if v && v != ''.freeze && parser.regexp[:ABS_PATH] !~ v
           raise InvalidComponentError,
             "bad component(expected absolute path component): #{v}"
         end
       else
-        if v && v != '' && parser.regexp[:ABS_PATH] !~ v && parser.regexp[:REL_PATH] !~ v
+        if v && v != ''.freeze && parser.regexp[:ABS_PATH] !~ v &&
+           parser.regexp[:REL_PATH] !~ v
           raise InvalidComponentError,
             "bad component(expected relative path component): #{v}"
         end
@@ -849,7 +844,7 @@ module URI
       x = v.to_str
       v = x.dup if x.equal? v
       v.encode!(Encoding::UTF_8) rescue nil
-      v.delete!("\t\r\n")
+      v.delete!("\t\r\n".freeze)
       v.force_encoding(Encoding::ASCII_8BIT)
       v.gsub!(/(?!%\h\h|[!$-&(-;=?-_a-~])./n.freeze){'%%%02X'.freeze % $&.ord}
       v.force_encoding(Encoding::US_ASCII)
@@ -939,9 +934,9 @@ module URI
       x = v.to_str
       v = x.dup if x.equal? v
       v.encode!(Encoding::UTF_8) rescue nil
-      v.delete!("\t\r\n")
+      v.delete!("\t\r\n".freeze)
       v.force_encoding(Encoding::ASCII_8BIT)
-      v.gsub!(/(?!%\h\h|[!-~])./n){'%%%02X' % $&.ord}
+      v.gsub!(/(?!%\h\h|[!-~])./n){'%%%02X'.freeze % $&.ord}
       v.force_encoding(Encoding::US_ASCII)
       @fragment = v
     end