Class: Rapel::Expression

Inherits:
Object
  • Object
show all
Defined in:
lib/rapel/expression.rb

Instance Method Summary collapse

Constructor Details

#initialize(exp) ⇒ Expression

Returns a new instance of Expression.



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# File 'lib/rapel/expression.rb', line 4

def initialize(exp)
  @expression = exp
end

Instance Method Details

#evaluate(context) {|result| ... } ⇒ Object

Yields:

  • (result) 


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# File 'lib/rapel/expression.rb', line 8

def evaluate(context)
  $stdout.puts("Evaluating #{self.inspect} within #{context.inspect}")
  result = {session_id: context.session_id}
  begin
    context.socket.puts(Rapel.escape_newlines(@expression))
    value = context.socket.gets.chomp
    result[:result] = Rapel.unescape_newlines(value)
  rescue Exception => e
    $stdout.puts e
    result[:result] = ""
    result[:error] = e.message
  end
  $stdout.puts "Received #{value.inspect} from #{context.inspect}"

  yield result
end

#inspect ⇒ Object 



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# File 'lib/rapel/expression.rb', line 25

def inspect
  @expression.inspect
end