From aa3cb74b8105d362f48064f0798c794b7fcc9a72 Mon Sep 17 00:00:00 2001
From: keiju <keiju@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 18 Jan 2011 09:34:10 +0000
Subject:  * lib/irb/comletion.rb: Irb tab completion support for XX::method
 forms.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30592 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/irb/completion.rb | 49 +++++++++++++++++++++++++++++++------------------
 1 file changed, 31 insertions(+), 18 deletions(-)

(limited to 'lib/irb/completion.rb')

diff --git a/lib/irb/completion.rb b/lib/irb/completion.rb
index e059bc4055..ee5cf69409 100644
--- a/lib/irb/completion.rb
+++ b/lib/irb/completion.rb
@@ -91,60 +91,73 @@ module IRB
 	rescue Exception
 	  candidates = []
 	end
-	candidates.grep(/^#{message}/).collect{|e| receiver + "::" + e}
+	select_message(receiver, message, candidates, "::")
 
-      when /^(:[^:.]+)\.([^.]*)$/
+      when /^(:[^:.]+)(\.|::)([^.]*)$/
 	# Symbol
 	receiver = $1
-	message = Regexp.quote($2)
+	sep = $2
+	message = Regexp.quote($3)
 
 	candidates = Symbol.instance_methods.collect{|m| m.to_s}
-	select_message(receiver, message, candidates)
+	select_message(receiver, message, candidates, sep)
 
-      when /^(-?(0[dbo])?[0-9_]+(\.[0-9_]+)?([eE]-?[0-9]+)?)\.([^.]*)$/
+      when /^(-?(0[dbo])?[0-9_]+(\.[0-9_]+)?([eE]-?[0-9]+)?)(\.|::)([^.]*)$/
 	# Numeric
 	receiver = $1
-	message = Regexp.quote($5)
+	sep = $5
+	message = Regexp.quote($6)
 
 	begin
 	  candidates = eval(receiver, bind).methods.collect{|m| m.to_s}
 	rescue Exception
 	  candidates = []
 	end
-	select_message(receiver, message, candidates)
+	select_message(receiver, message, candidates, sep)
 
-      when /^(-?0x[0-9a-fA-F_]+)\.([^.]*)$/
+      when /^(-?0x[0-9a-fA-F_]+)(\.|::)([^.]*)$/
 	# Numeric(0xFFFF)
 	receiver = $1
-	message = Regexp.quote($2)
+	sep = $2
+	message = Regexp.quote($3)
 
 	begin
 	  candidates = eval(receiver, bind).methods.collect{|m| m.to_s}
 	rescue Exception
 	  candidates = []
 	end
-	select_message(receiver, message, candidates)
+	select_message(receiver, message, candidates, sep)
 
       when /^(\$[^.]*)$/
+	# global var
 	regmessage = Regexp.new(Regexp.quote($1))
 	candidates = global_variables.collect{|m| m.to_s}.grep(regmessage)
 
 #      when /^(\$?(\.?[^.]+)+)\.([^.]*)$/
 #      when /^((\.?[^.]+)+)\.([^.]*)$/
-      when /^([^."].*)\.([^.]*)$/
-	# variable
+#      when /^([^."].*)\.([^.]*)$/
+      when /^([^."].*)(\.|::)([^.]*)$/
+	# variable.func or func.func
 	receiver = $1
-	message = Regexp.quote($2)
+	sep = $2
+	message = Regexp.quote($3)
 
 	gv = eval("global_variables", bind).collect{|m| m.to_s}
 	lv = eval("local_variables", bind).collect{|m| m.to_s}
 	cv = eval("self.class.constants", bind).collect{|m| m.to_s}
 
 	if (gv | lv | cv).include?(receiver) or /^[A-Z]/ =~ receiver && /\./ !~ receiver
-	  # foo.func and foo is local var. OR
+	  # foo.func and foo is var. OR
+	  # foo::func and foo is var. OR
+	  # foo::Const and foo is var. OR
 	  # Foo::Bar.func
 	  begin
-	    candidates = eval("#{receiver}.methods", bind).collect{|m| m.to_s}
+	    candidates = []
+	    rec = eval(receiver, bind)
+	    if sep == "::" and rec.kind_of?(Module) 
+	      candidates = rec.constants.collect{|m| m.to_s}
+	    end
+	    candidates |= rec.methods.collect{|m| m.to_s}
 	  rescue Exception
 	    candidates = []
 	  end
@@ -164,7 +177,7 @@ module IRB
 	  candidates.sort!
 	  candidates.uniq!
 	end
-	select_message(receiver, message, candidates)
+	select_message(receiver, message, candidates, sep)
 
       when /^\.([^.]*)$/
 	# unknown(maybe String)
@@ -186,11 +199,11 @@ module IRB
       "<", "<<", "<=", "<=>", "==", "===", "=~", ">", ">=", ">>",
       "[]", "[]=", "^", "!", "!=", "!~"]
 
-    def self.select_message(receiver, message, candidates)
+    def self.select_message(receiver, message, candidates, sep = ".")
       candidates.grep(/^#{message}/).collect do |e|
 	case e
 	when /^[a-zA-Z_]/
-	  receiver + "." + e
+	  receiver + sep + e
 	when /^[0-9]/
 	when *Operators
 	  #receiver + " " + e
-- 
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