From 52c738408e7624d1f6ebb8c62a7497fed2684bf5 Mon Sep 17 00:00:00 2001 From: k0kubun Date: Mon, 15 May 2017 13:38:02 +0000 Subject: [PATCH] erb.rb: Use String#<< instead of #concat to optimize String concatenation on rendering. [fix GH-1612] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58735 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- lib/erb.rb | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/lib/erb.rb b/lib/erb.rb index 9483711024..ab65ef3be5 100644 --- a/lib/erb.rb +++ b/lib/erb.rb @@ -281,8 +281,8 @@ class ERB # # compiler = ERB::Compiler.new('<>') # compiler.pre_cmd = ["_erbout=String.new"] - # compiler.put_cmd = "_erbout.concat" - # compiler.insert_cmd = "_erbout.concat" + # compiler.put_cmd = "_erbout.<<" + # compiler.insert_cmd = "_erbout.<<" # compiler.post_cmd = ["_erbout"] # # code, enc = compiler.compile("Got <%= obj %>!\n") @@ -291,7 +291,7 @@ class ERB # Generates: # # #coding:UTF-8 - # _erbout=String.new; _erbout.concat "Got "; _erbout.concat(( obj ).to_s); _erbout.concat "!\n"; _erbout + # _erbout=String.new; _erbout.<< "Got "; _erbout.<<(( obj ).to_s); _erbout.<< "!\n"; _erbout # # By default the output is sent to the print method. For example: # @@ -867,8 +867,8 @@ class ERB # requires the setup of an ERB _compiler_ object. # def set_eoutvar(compiler, eoutvar = '_erbout') - compiler.put_cmd = "#{eoutvar}.concat" - compiler.insert_cmd = "#{eoutvar}.concat" + compiler.put_cmd = "#{eoutvar}.<<" + compiler.insert_cmd = "#{eoutvar}.<<" compiler.pre_cmd = ["#{eoutvar} = String.new"] compiler.post_cmd = ["#{eoutvar}.force_encoding(__ENCODING__)"] end