Class: OpenWFE::ProcessDefinition::Context

Inherits:
Object
  • Object
show all
Defined in:
lib/openwfe/expressions/rprocdef.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Context

Returns a new instance of Context.



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# File 'lib/openwfe/expressions/rprocdef.rb', line 321

def initialize
    @parent_expression = nil
    @top_expressions = []
    @previous_parent_expressions = []
end

Instance Attribute Details

#parent_expression ⇒ Object

Returns the value of attribute parent_expression.



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# File 'lib/openwfe/expressions/rprocdef.rb', line 318

def parent_expression
  @parent_expression
end

#previous_parent_expressions ⇒ Object (readonly)

Returns the value of attribute previous_parent_expressions.



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# File 'lib/openwfe/expressions/rprocdef.rb', line 319

def previous_parent_expressions
  @previous_parent_expressions
end

#top_expressions ⇒ Object

Returns the value of attribute top_expressions.



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# File 'lib/openwfe/expressions/rprocdef.rb', line 318

def top_expressions
  @top_expressions
end

Instance Method Details

#discard ⇒ Object 



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# File 'lib/openwfe/expressions/rprocdef.rb', line 327

def discard
    @discarded = true
end

#discarded? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/openwfe/expressions/rprocdef.rb', line 330

def discarded?
    (@discarded == true)
end

#pop_parent_expression ⇒ Object

Replaces the current parent expression with the one found on the top of the previous parent expression stack (pop).



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# File 'lib/openwfe/expressions/rprocdef.rb', line 351

def pop_parent_expression

    @parent_expression = @previous_parent_expressions.pop
end

#push_parent_expression(exp) ⇒ Object

puts the current parent expression on top of the ‘previous parent expressions’ stack, the current parent expression is replaced with the supplied parent expression.



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# File 'lib/openwfe/expressions/rprocdef.rb', line 339

def push_parent_expression (exp)

    @previous_parent_expressions.push(@parent_expression) \
        if @parent_expression

    @parent_expression = exp
end

#top_expression ⇒ Object

This method returns the top expression among the top expressions…



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# File 'lib/openwfe/expressions/rprocdef.rb', line 360

def top_expression

    return nil if @top_expressions.size > 1

    exp = @top_expressions.first

    return exp if exp.first == "process-definition"
    nil
end