RubyForge bug fixes

tfpt review /shelveset:merge-3;REDMOND\jflam

Ruby only

This shelveset fixes a number of open bugs on Rubyforge and adds some
features that we need to get the latest rubinius specs running.

MatchDataOps:

  •   we used to alias MatchData to 
    

System.Text.RegularExpressions.Match. However, to fully implement
MatchData we need to also hold onto a reference to the original string
that we matched against. A new MatchData type was created (MatchData.cs)
which wraps the existing .NET Match object. This also touches
MutableStringOps.cs, RubyOps.cs, RubyScope.cs,
SpecialGlobalVariableInfo.cs

  •   finished implementing all methods. 16 out of 16 specs pass
    
  •   implemented to_a which closes bug #19903
    

RegexpOps:

  •   added ctor overload to close bug #19927
    
  •   made some changes to return MatchData objects instead of Match 
    

objects

  •   made some changes to return boxed integers via 
    

RuntimeHelpers.Int32ToObject() instead of explicit boxing. This also
touches MutableStringOps.cs

TimeOps:

  •   removed overloaded constructors to close bug #19956. But this 
    

exposes a new problem about Type aliasing that is described by bug 20035
(referencing a System::DateTime explicitly does not allow you to call
the .NET constructors - only the Ruby-defined constructors).

  •   fixed Time#- bug - #19955
    

ModuleOps:

  •   fixed some very old bugs #15996, #15995 related to including 
    

non-sensible things (include 1, include nil). RequireNonClasses() method
now throws the correct Ruby exceptions. This also touches
SingletonOps.cs

MutableStringOps:

  •   added an implementation of String#rindex which closes #19904. We 
    

pass all specs except for 4 which fail because of differences between
.NET regex and Ruby regex.

Dir.cs:

  •   cleaned up some code here, was about to work on glob 
    

implementation (bugs #19843 #19950, but handed off to Curt)

FileOps.cs:

  •   added an implementation of File#basename which closes #19905. 
    

passes all specs except for one which is wrong, and one which is
unix-specific. These things are likely bugs in Ruby.

#File.basename('baz.rb', 'z.rb').should == 'ba' -- bad test
#File.basename("bar.txt.exe", ".txt.exe").should == "bar" - 

unix-only, should be wrapped in platform

  •   added an implementation of File.file? to close #19949
    

MutableString.cs:

  •   added a static Empty MutableString
    
  •   added delegation thunks to LastIndexOf()
    
  •   fixed our Equals() implementation to correctly distinguish 
    

between different types of strings (CLR vs. MutableString)

File.cs:

  •   fixes a bug related to what "w+" means in .NET. - its 
    

FileMode.OpenOrCreate

Fixed bug #19885 by adding the -I command line switch which lets you
specify the library load path. I’ve redefined our internal alias.txt
file to generate aliases for rbd and rbx that include a pointer to where
the MRI libs are stored in our layout.

Fixed bug #17810, which was a long-standing perf bug.

Fixed bug #20007, by allowing users to pass nothing for
attr_accessor/reader/writer. This is really a bug in Ruby, but the
current implementations allow this behavior, and there are apps that
actually depend on it (RbYAML).

Thanks,
-John

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