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Viewing changes to lib/irb/workspace.rb

  • Committer: Bazaar Package Importer
  • Author(s): akira yamada
  • Date: 2007-03-13 22:11:58 UTC
  • mfrom: (1.1.5 upstream)
  • Revision ID: james.westby@ubuntu.com-20070313221158-h3oql37brlaf2go2
Tags: 1.8.6-1
http://bugs.debian.org/410018
* new upstream version, 1.8.6.
* libruby1.8 conflicts with libopenssl-ruby1.8 (< 1.8.6) (closes: #410018)
* changed packaging style to cdbs from dbs.

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lib/irb/workspace.rb
 
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#
 
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#   irb/workspace-binding.rb - 
 
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#       $Release Version: 0.9.5$
 
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#       $Revision: 11708 $
 
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#       $Date: 2007-02-13 08:01:19 +0900 (Tue, 13 Feb 2007) $
 
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#       by Keiju ISHITSUKA(keiju@ruby-lang.org)
 
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#
 
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# --
 
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#
 
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#   
 
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#
 
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module IRB
 
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  class WorkSpace
 
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    # create new workspace. set self to main if specified, otherwise
 
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    # inherit main from TOPLEVEL_BINDING.
 
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    def initialize(*main)
 
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      if main[0].kind_of?(Binding)
 
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        @binding = main.shift
 
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      elsif IRB.conf[:SINGLE_IRB]
 
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        @binding = TOPLEVEL_BINDING
 
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      else
 
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        case IRB.conf[:CONTEXT_MODE]
 
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        when 0  # binding in proc on TOPLEVEL_BINDING
 
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          @binding = eval("proc{binding}.call",
 
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                      TOPLEVEL_BINDING, 
 
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                      __FILE__,
 
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                      __LINE__)
 
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        when 1  # binding in loaded file
 
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          require "tempfile"
 
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          f = Tempfile.open("irb-binding")
 
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          f.print <<EOF
 
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          $binding = binding
 
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EOF
 
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          f.close
 
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          load f.path
 
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          @binding = $binding
 
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        when 2  # binding in loaded file(thread use)
 
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          unless defined? BINDING_QUEUE
 
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            require "thread"
 
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            IRB.const_set("BINDING_QUEUE", SizedQueue.new(1))
 
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            Thread.abort_on_exception = true
 
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            Thread.start do
 
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              eval "require \"irb/ws-for-case-2\"", TOPLEVEL_BINDING, __FILE__, __LINE__
 
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            end
 
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            Thread.pass
 
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          end
 
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          @binding = BINDING_QUEUE.pop
 
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        when 3  # binging in function on TOPLEVEL_BINDING(default)
 
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          @binding = eval("def irb_binding; binding; end; irb_binding",
 
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                      TOPLEVEL_BINDING, 
 
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                      __FILE__,
 
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                      __LINE__ - 3)
 
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        end
 
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      end
 
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      if main.empty?
 
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        @main = eval("self", @binding)
 
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      else
 
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        @main = main[0]
 
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        IRB.conf[:__MAIN__] = @main
 
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        case @main
 
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        when Module
 
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          @binding = eval("IRB.conf[:__MAIN__].module_eval('binding', __FILE__, __LINE__)", @binding, __FILE__, __LINE__)
 
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        else
 
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          begin 
 
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            @binding = eval("IRB.conf[:__MAIN__].instance_eval('binding', __FILE__, __LINE__)", @binding, __FILE__, __LINE__)
 
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          rescue TypeError
 
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            IRB.fail CantChangeBinding, @main.inspect
 
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          end
 
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        end
 
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      end
 
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      eval("_=nil", @binding)
 
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    end
 
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    attr_reader :binding
 
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    attr_reader :main
 
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    def evaluate(context, statements, file = __FILE__, line = __LINE__)
 
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      eval(statements, @binding, file, line)
 
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    end
 
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    # error message manipulator
 
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    def filter_backtrace(bt)
 
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      case IRB.conf[:CONTEXT_MODE]
 
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      when 0
 
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        return nil if bt =~ /\(irb_local_binding\)/
 
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      when 1
 
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        if(bt =~ %r!/tmp/irb-binding! or
 
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           bt =~ %r!irb/.*\.rb! or
 
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           bt =~ /irb\.rb/)
 
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          return nil
 
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        end
 
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      when 2
 
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        return nil if bt =~ /irb\/.*\.rb/
 
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      when 3
 
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        return nil if bt =~ /irb\/.*\.rb/
 
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        bt.sub!(/:\s*in `irb_binding'/){""} 
 
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      end
 
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      bt
 
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    end
 
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    def IRB.delete_caller
 
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    end
 
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  end
 
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end