Class: Jsapi::Meta::Callable::SymbolEvaluator

Inherits:
Object
  • Object
show all
Defined in:
lib/jsapi/meta/callable/symbol_evaluator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(symbol) ⇒ SymbolEvaluator 



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# File 'lib/jsapi/meta/callable/symbol_evaluator.rb', line 9

def initialize(symbol)
  @symbol = symbol
  @keys = [@symbol, @symbol.to_s]
end

Instance Attribute Details

#symbol ⇒ Object (readonly)

Returns the value of attribute symbol.



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# File 'lib/jsapi/meta/callable/symbol_evaluator.rb', line 7

def symbol
  @symbol
end

Instance Method Details

#call(object) ⇒ Object

Evaluates the symbol within the context of object.



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# File 'lib/jsapi/meta/callable/symbol_evaluator.rb', line 19

def call(object)
  if object.respond_to?(@symbol)
    object.public_send(@symbol)
  elsif object.respond_to?(:[]) && object.respond_to?(:key?)
    @keys.each { |key| return object[key] if object.key?(key) }
    nil
  end
end

#inspect ⇒ Object

:nodoc:



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# File 'lib/jsapi/meta/callable/symbol_evaluator.rb', line 14

def inspect # :nodoc:
  "#<#{self.class.name} #{@symbol.inspect}>"
end