opal · Jun 23, 2014 · Jun 23, 2014 · Jun 23, 2014 · Jun 24, 2014 · Jun 26, 2014
diff --git a/Gemfile b/Gemfile
@@ -14,8 +14,8 @@ group :repl do
 end
 
 unless ENV['CI']
+  gem 'rb-fsevent'
   gem 'guard', require: false
-  gem 'rb-fsevent', require: false
   gem 'terminal-notifier-guard'
 end
 

diff --git a/Guardfile b/Guardfile
@@ -1,58 +1,70 @@
-watch(%r{.*}) do |m|
-  path = m[0]
-  puts color("Searching specs for #{m[0]}...", :yellow)
-  case path
-  when %r{^spec/cli}     then rspec path
-  when %r{^spec/corelib} then mspec path
-  when %r{^opal/corelib}
-    name = File.basename(path, '.rb')
-    mspec "spec/corelib/core/#{name}/**/*_spec.rb"
-  when %r{^lib/opal/(.*)\.rb$}
-    name = $1
-    specs = Dir["spec/cli/#{name}_spec.rb"]
-    rspec *specs
+require 'guard/plugin'
+
+class ::Guard::Opal < Plugin
+  def mspec *paths
+    command = ['bundle', 'exec', './bin/opal-mspec', *paths.flatten]
+    result = time(:mspec, *paths) { system *command }
+    notify 'MSpec', result
   end
-end
 
+  def rspec *paths
+    command = ['bundle', 'exec', 'rspec', *paths.flatten]
+    result = time(:rspec, *paths) { system *command }
+    notify 'RSpec', result
+  end
 
-def mspec *paths
-  command = ['bundle', 'exec', './bin/opal-mspec', *paths.flatten]
-  result = time(:mspec, *paths) { system *command }
-  notify 'MSpec', result
-end
+  def notify lib, result
+    if result
+      ::Guard::Notifier.notify(
+        'Success ♥︎', title: "#{lib} results", image: :success, priority: 1
+      )
+    else
+      ::Guard::Notifier.notify(
+        'Failed ♠︎', title: "#{lib} results", image: :failed, priority: 1
+      )
+    end
+  end
 
-def rspec *paths
-  command = ['bundle', 'exec', 'rspec', *paths.flatten]
-  result = time(:rspec, *paths) { system *command }
-  notify 'RSpec', result
-end
+  def color *args
+    Guard::UI.send :color, *args
+  end
 
-def notify lib, result
-  if result
-    ::Guard::Notifier.notify(
-      'Success ♥︎', title: "#{lib} results", image: :success, priority: 1
-    )
-  else
-    ::Guard::Notifier.notify(
-      'Failed ♠︎', title: "#{lib} results", image: :failed, priority: 1
-    )
+  def terminal_columns
+    cols = `tput cols 2> /dev/tty`.strip.to_i
+    ($?.success? && cols.nonzero?) ? cols : 80
   end
-end
 
-def color *args
-  Guard::UI.send :color, *args
-end
+  def time *titles
+    columns = terminal_columns
+    puts color("=== running: #{titles.join(' ')} ".ljust(columns,'='), :cyan)
+    s = Time.now
+    yield
+    t = (Time.now - s).to_f
+    puts color("=== time: #{t} seconds ".ljust(columns, '='), :cyan)
+  end
 
-def terminal_columns
-  cols = `tput cols 2> /dev/tty`.strip.to_i
-  ($?.success? && cols.nonzero?) ? cols : 80
+  def run_on_changes(changes)
+    m = changes
+    path = m[0]
+    puts color("Searching specs for #{m[0]}...", :yellow)
+    case path
+    when %r{^spec/cli}     then rspec path
+    when %r{^spec/corelib} then mspec path
+    when %r{^opal/corelib}
+      name = File.basename(path, '.rb')
+      mspec "spec/corelib/core/#{name}/**/*_spec.rb"
+    when %r{^lib/opal/(.*)\.rb$}
+      name = $1
+      specs = Dir["spec/cli/#{name}_spec.rb"]
+      rspec *specs
+    end
+  end
+
+  def run_all
+    time(:all) { system 'bundle', 'exec', 'rake' }
+  end
 end
 
-def time *titles
-  columns = terminal_columns
-  puts color("=== running: #{titles.join(' ')} ".ljust(columns,'='), :cyan)
-  s = Time.now
-  yield
-  t = (Time.now - s).to_f
-  puts color("=== time: #{t} seconds ".ljust(columns, '='), :cyan)
+guard :opal do
+  watch /.*/
 end
diff --git a/lib/opal/sprockets/server.rb b/lib/opal/sprockets/server.rb
@@ -158,15 +158,15 @@ def javascript_include_tag source
       end
 
       SOURCE = <<-HTML
-  <!DOCTYPE html>
-  <html>
-  <head>
-    <title>Opal Server</title>
-  </head>
-  <body>
-    <%= javascript_include_tag @server.main %>
-  </body>
-  </html>
+        <!DOCTYPE html>
+        <html>
+        <head>
+          <title>Opal Server</title>
+        </head>
+        <body>
+          <%= javascript_include_tag @server.main %>
+        </body>
+        </html>
       HTML
     end
   end

diff --git a/opal/corelib/io.rb b/opal/corelib/io.rb
@@ -13,16 +13,18 @@ def write(string)
   module Writable
     def <<(string)
       write(string)
-
       self
     end
 
     def print(*args)
       write args.map { |arg| String(arg) }.join($,)
+      nil
     end
 
     def puts(*args)
-      write args.map { |arg| String(arg) }.join($/)
+      newline = $/
+      write args.map { |arg| String(arg).chomp }.concat([nil]).join(newline)
+      nil
     end
   end
 
@@ -49,8 +51,9 @@ def readpartial(integer, outbuf = nil)
 STDIN  = $stdin  = IO.new
 STDOUT = $stdout = IO.new
 
-$stdout.write_proc = -> (string) {`console.log(#{string.to_s});`}
-$stderr.write_proc = -> (string) {`console.warn(#{string.to_s});`}
+
+$stdout.write_proc = `typeof(process) === 'object' ? function(s){process.stdout.write(s)} : function(s){console.log(s)}`
+$stderr.write_proc = `typeof(process) === 'object' ? function(s){process.stderr.write(s)} : function(s){console.warn(s)}`
 
 $stdout.extend(IO::Writable)
 $stderr.extend(IO::Writable)
diff --git a/opal/corelib/kernel.rb b/opal/corelib/kernel.rb
@@ -453,7 +453,6 @@ def print(*strs)
 
   def warn(*strs)
     $stderr.puts(*strs) unless $VERBOSE.nil? || strs.empty?
-    nil
   end
 
   def raise(exception = undefined, string = undefined)

diff --git a/spec/filters/bugs/opal.rb b/spec/filters/bugs/opal.rb
@@ -9,4 +9,6 @@
   fails "String#index with Regexp supports \\G which matches at the given start offset"
   fails "String#index with Regexp starts the search at the given offset"
   fails "String#index with Regexp returns the index of the first match of regexp"
+
+  fails "Kernel#warn requires multiple arguments"
 end
diff --git a/spec/filters/unsupported/private_methods.rb b/spec/filters/unsupported/private_methods.rb
@@ -39,4 +39,6 @@
   fails "Class#initialize is private"
 
   fails "Math#atanh is a private instance method"
+
+  fails "Kernel#warn is a private method"
 end
diff --git a/spec/opal/core/kernel/warn_spec.rb b/spec/opal/core/kernel/warn_spec.rb
diff --git a/spec/rubyspecs b/spec/rubyspecs
@@ -42,6 +42,7 @@ corelib/core/kernel/equal_spec
 corelib/core/kernel/equal_value_spec
 corelib/core/kernel/tap_spec
 corelib/core/kernel/to_s_spec
+corelib/core/kernel/warn_spec
 
 corelib/core/matchdata/captures_spec
 corelib/core/matchdata/inspect_spec

diff --git a/stdlib/nodejs/io.rb b/stdlib/nodejs/io.rb
@@ -1,16 +1,2 @@
-module IO::Writable
-  def puts(*args)
-    write args.map { |arg| String(arg) }.join($/)+$/
-  end
-end
-
-STDERR = $stderr = IO.new
-STDIN  = $stdin  = IO.new
-STDOUT = $stdout = IO.new
-
 $stdout.write_proc = -> (string) {`process.stdout.write(#{string})`}
 $stderr.write_proc = -> (string) {`process.stderr.write(string)`}
-
-$stdout.extend(IO::Writable)
-$stderr.extend(IO::Writable)
-