Class: OCL::Implies

Inherits:
Block
  • Object
show all
Defined in:
lib/dbc/ocl.rb

Overview

Paren

Instance Method Summary collapse

Methods inherited from Block

check_condition, result, #to_s

Constructor Details

#initialize(condition, implication) ⇒ Implies

Returns a new instance of Implies.



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# File 'lib/dbc/ocl.rb', line 126

def initialize(condition, implication)
  @condition = condition
  @implication = implication
end

Instance Method Details

#cexp? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dbc/ocl.rb', line 151

def cexp?
  @condition.cexp? and @implication.cexp?
end

#to_cexp ⇒ Object 



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# File 'lib/dbc/ocl.rb', line 155

def to_cexp
  "#{@condition.to_cexp} ? #{@implication.to_cexp} : 1"
end

#to_exp(result, indent_str = '') ⇒ Object 



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# File 'lib/dbc/ocl.rb', line 131

def to_exp(result, indent_str = '')
  str = ''
  # implies statements are true by default
  str << indent_str << "#{result} = 1;\n"
  if @condition.cexp?
    expression = @condition.to_cexp
  else
    expression = Block.result
    str << @condition.to_exp(expression, indent_str)
  end
  # if the expression is true then that implies the condition
  str << indent_str << "if (#{expression}) {\n"
  if @implication.cexp?
    str << check_condition(@implication.to_cexp, result, "\t" << indent_str)
  else
    str << @implication.to_exp(result, "\t" << indent_str)
  end
  str << indent_str << "}\n"
end