#
#--
# Copyright (c) 2006, John Mettraux, OpenWFE.org
# All rights reserved.
# 
# Redistribution and use in source and binary forms, with or without 
# modification, are permitted provided that the following conditions are met:
# 
# . Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.  
# 
# . Redistributions in binary form must reproduce the above copyright notice, 
#   this list of conditions and the following disclaimer in the documentation 
#   and/or other materials provided with the distribution.
# 
# . Neither the name of the "OpenWFE" nor the names of its contributors may be
#   used to endorse or promote products derived from this software without
#   specific prior written permission.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
# POSSIBILITY OF SUCH DAMAGE.
#++
#
# $Id: definitions.rb 2725 2006-06-02 13:26:32Z jmettraux $
#

#
# "made in Japan"
#
# John Mettraux at openwfe.org
#


require 'ru/service'


module OpenWFEru

    #
    # In OpenWFEja, an ExpressionStorage is called an ExpressionStore
    # I prefer the 'storage' concept.
    #
    class InMemoryExpressionStorage < Hash
        include ServiceMixin

        def initialize (service_name, application_context)
            super()
            @service_name = service_name
            @application_context = application_context
        end

        #def []= (k, v)
        #    super(k.to_s, v)
        #end
        #def delete (k)
        #    super(k.to_s)
        #end
        #def [] (k)
        #    result = super(k)
        #    return result if result
        #    ldebug do
        #        result = ""
        #        self.each do |kk, vv|
        #            result << "\n#{k} ?= #{kk}  : #{k == kk}"
        #        end
        #        result
        #    end
        #    return nil
        #end

        def to_s
            s = "\n\n==== #{self.class} ===="
            each do |k, v|
                s << "\n"
                if v.kind_of?(RawExpression)
                    s << "*raw" 
                else
                    s << "  "
                end
                s << v.to_s
                s << "    key/value mismatch !" if k != v.fei
            end
            s << "\n==== . ====\n"
            return s
        end

    end

end