Module: Devel::Which::ForObject

Defined in:
lib/devel/which/forobject.rb

Class Method Summary collapse

Class Method Details

.whereis_library(lib, opt = {}) ⇒ Object 



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# File 'lib/devel/which/forobject.rb', line 33

def whereis_library(lib, opt = {})
  unless lib.is_a? String
    raise TypeError,
      "wrong argument type #{lib.type} (expected String)"
  end
  unless opt.is_a? Hash
    raise TypeError,
      "wrong argument type #{lib.type} (expected Hash)"
  end
  optpath = opt[:path] || opt[:p] || []
  optext = opt[:ext] || opt[:e] || ""
  ext = ["rb", RbConfig::CONFIG["DLEXT"], RbConfig::CONFIG["DLEXT2"], optext]
  ext.map!{|i| i.length > 0 ? ".#{i}" : nil}
  ext.compact!
  ext.push("")

  at = []

  ($: + optpath).each{|path|
    with = nil
    file = "#{File::expand_path(path)}/#{lib}"

    begin
      ext.each{|with|
        if (test(?f, file+with) && test(?r, file+with) rescue false)
          at << "#{path}/#{lib}#{with}"
        end
      }
    rescue
      next
    end
  }

  at
end

.which_library(lib) ⇒ Object 



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# File 'lib/devel/which/forobject.rb', line 6

def which_library(lib)
  unless lib.is_a? String
    raise TypeError,
      "wrong argument type #{lib.type} (expected String)"
  end
  ext = ["rb", RbConfig::CONFIG["DLEXT"], RbConfig::CONFIG["DLEXT2"]]
  ext.map!{|i| i.length > 0 ? ".#{i}" : nil}
  ext.compact!
  ext.push("")

  at = with = nil
  at = $:.find{|path|
    file = "#{File::expand_path(path)}/#{lib}"

    begin
      with = ext.find{|i|
        test(?f, file+i) && test(?r, file+i)
      }
    rescue
      next
    end
  }

  "#{at}/#{lib}#{with}" if at
end