39 lines
1.2 KiB
Ruby
39 lines
1.2 KiB
Ruby
module RxFile
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# module for a couple of helpers that are needed in Members and Writer
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module Util
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# "value" is a property meaning simple/ not further structure
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# hence int/bool/string etc are values
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def is_value? o
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return true if [true , false , nil].include?(o)
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return true if [Fixnum, Symbol, String, Class].include?(o.class)
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if o.respond_to? :is_value?
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return true if o.is_value?
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end
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return false
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end
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# extract an attribute by the given name from the object
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# done with instance_variable_get
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def get_value(object,name)
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object.instance_variable_get "@#{name}".to_sym
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end
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# return a list of attributes for a given object
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# attributes may be supressed with Volotile
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# TODO should be able to specify order too
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def attributes_for object
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RxFile::Util.attributes(object)
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end
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# return a list of attributes for a given object
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# attributes may be supressed with Volotile
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# TODO should be able to specify order too
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def self.attributes( object )
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atts = object.instance_variables.collect{|i| i.to_s[1..-1].to_sym } # chop of @
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atts - Volotile.attributes(object.class)
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end
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end
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end
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