fix merge problem handling eof in #each

chuckremes · chuckremes · commit 82fb8c8cdc40 · 2016-01-09T16:58:04.000-06:00
diff --git a/README b/README
@@ -11,10 +11,15 @@ Rubinius runs on Mac OS X and many Unix/Linux operating systems.  Microsoft
 Windows is not yet supported.
 
 
-2. The Ruby Programming Language
+2. Code of Conduct
+
+Participation in the Rubinius project is governed by the Rubinius Code of
+Conduct. See http://rubinius.com/code-of-conduct/
+
+3. The Ruby Programming Language
 
 Many popular Ruby applications, like Rails, run on Rubinius, which aims to be
-compatible with Ruby version 2.1.
+compatible with Ruby version 2.2.
 
 Rubinius includes a Ruby parser, Ruby bytecode compiler, Ruby core library,
 and C-API compatibility for native C extensions. The Ruby core library is
@@ -33,13 +38,13 @@ The following Ruby features are not supported on Rubinius:
 * $SAFE levels
 
 
-3. License
+4. License
 
 Rubinius uses the MPL-2.0 license. See LICENSE for details. Contributions made
 prior to January 3rd, 2016 are licensed under the old BSD 3-clause license. A
 copy of this license can be found in the file "BSD_LICENSE".
 
-4. Installing Rubinius from Source
+5. Installing Rubinius from Source
 
 To install Rubinius, use the following steps:
 
@@ -56,21 +61,21 @@ information see http://rubinius.com/doc/en/getting-started/requirements/
 and http://rubinius.com/doc/en/getting-started/building/.
 
 
-5. Using RubyGems
+6. Using RubyGems
 
 Rubinius comes with RubyGems built-in. To install a gem, run the following:
 
   $ rbx -S gem install <gem_name>
 
 
-6. Documentation
+7. Documentation
 
 The Rubinius documentation is available at the Rubinius website:
 
   http://rubinius.com
 
 
-7. Issues & Support
+8. Issues & Support
 
 Please file tickets for bugs or problems. The issue tracker is:
 
@@ -81,7 +86,7 @@ For additional help, visit the Rubinius Gitter chat room:
   https://gitter.im/rubinius/rubinius
 
 
-8. Contributing
+9. Contributing
 
 The Rubinius team welcomes contributions. For more information, read the
 CONTRIBUTING file in the root directory of Rubinius.
diff --git a/README.md b/README.md
@@ -9,10 +9,15 @@ Rubinius includes a bytecode virtual machine, generational garbage collector, an
 Rubinius runs on Mac OS X and many Unix/Linux operating systems.  Microsoft Windows is not yet supported.
 
 
+### Code of Conduct
+
+Participation in the Rubinius project is governed by the Rubinius [Code of
+Conduct](http://rubinius.com/code-of-conduct/).
+
 ### The Ruby Programming Language
 
 Many popular Ruby applications, like Rails, run on Rubinius, which aims to be
-compatible with Ruby version 2.1.
+compatible with Ruby version 2.2.
 
 Rubinius includes a Ruby parser, Ruby bytecode compiler, Ruby core library,
 and C-API compatibility for native C extensions. The Ruby core library is
diff --git a/kernel/common/enumerable.rb b/kernel/common/enumerable.rb
@@ -563,7 +563,9 @@ def find_index(value=undefined)
 
   def first(n=undefined)
     return __take__(n) unless undefined.equal?(n)
-    each { |element| return element }
+    each do
+      return Rubinius.single_block_arg
+    end
     nil
   end
 
diff --git a/kernel/common/io.rb b/kernel/common/io.rb
@@ -2170,6 +2170,7 @@ def each(sep_or_limit=$/, limit=nil, &block)
       end
     end
 
+    raise ArgumentError, "limit of 0 is invalid" if limit && limit.zero?
     return if eof?
 
     EachReader.new(self, sep, limit).each(&block)
@@ -2596,9 +2597,9 @@ def puts(*args)
           str = ""
         elsif Thread.guarding? arg
           str = "[...]"
-        elsif arg.kind_of?(Array)
+        elsif arg.respond_to?(:to_ary)
           Thread.recursion_guard arg do
-            arg.each do |a|
+            arg.to_ary.each do |a|
               puts a
             end
           end
diff --git a/spec/ruby/core/enumerable/first_spec.rb b/spec/ruby/core/enumerable/first_spec.rb
@@ -12,6 +12,11 @@
     EnumerableSpecs::Empty.new.first.should == nil
   end
 
+  it 'returns a gathered array from yield parameters' do
+    EnumerableSpecs::YieldsMulti.new.to_enum.first.should == [1, 2]
+    EnumerableSpecs::YieldsMixed2.new.to_enum.first.should == nil
+  end
+
   it "raises a RangeError when passed a Bignum" do
     enum = EnumerableSpecs::Empty.new
     lambda { enum.first(bignum_value) }.should raise_error(RangeError)
diff --git a/spec/ruby/core/io/puts_spec.rb b/spec/ruby/core/io/puts_spec.rb
@@ -37,7 +37,16 @@
     @io.puts(nil, nil).should == nil
   end
 
-  it "calls to_s before writing non-string objects" do
+  it "calls to_ary before writing non-string objects that respond to :to_ary" do
+    object = mock('hola')
+    object.should_receive(:to_ary).and_return(["hola"])
+
+    @io.should_receive(:write).with("hola")
+    @io.should_receive(:write).with("\n")
+    @io.puts(object).should == nil
+  end
+
+  it "calls to_s before writing non-string objects that don't respond to :to_ary" do
     object = mock('hola')
     object.should_receive(:to_s).and_return("hola")
 
diff --git a/spec/ruby/core/io/shared/each.rb b/spec/ruby/core/io/shared/each.rb
@@ -73,6 +73,15 @@
     end
   end
 
+  describe "with limit" do
+    describe "when limit is 0" do
+      it "raises an ArgumentError" do
+        # must pass block so Enumerator is evaluated and raises
+        lambda { @io.send(@method, 0){} }.should raise_error(ArgumentError)
+      end
+    end
+  end
+
   describe "when passed a String containing one space as a separator" do
     it "uses the passed argument as the line separator" do
       @io.send(@method, " ") { |s| ScratchPad << s }
