Class: SbuilderSexp::PrimaryExpression

Inherits:
InfixExpression show all
Defined in:
lib/parser/parser_nodes.rb

Instance Method Summary collapse

Methods inherited from InfixExpression

#expression_val, #operator

Methods inherited from AbstactExpression

#expression_prefix, #expression_val, #has_rhs, #lhs_node, #node_value, #rhs_node, #traverse

Methods inherited from Treetop::Runtime::SyntaxNode

#node_type, #node_value, #recursive_inject, #recursive_inject_parent, #recursive_select, #value

Instance Method Details

#attribute_accessors ⇒ AbstactExpression:Array

Access record by field name or by value

Returns:

  • (AbstactExpression:Array) —

    to acccess record fields



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# File 'lib/parser/parser_nodes.rb', line 197

def attribute_accessors
  deffi = elements.select{ |e| e.is_a?( SbuilderSexp::UnitExpression )}.first
  return unless deffi && !deffi.text_value.empty?
  deffi = deffi.recursive_select( SbuilderSexp::AbstactExpression )
  return deffi
end

#expression_postfix ⇒ Object

AbstactExpression.travers yield if non-nil



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# File 'lib/parser/parser_nodes.rb', line 191

def expression_postfix
  return "has-attribute-accessors" if has_attribute_accessors
end

#expressions ⇒ Object

AbstractExpression.traverse: postfix expression does not recurse to UnitExpressions, instead yield block iterates using ‘attribute_accessors’



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# File 'lib/parser/parser_nodes.rb', line 185

def expressions
  # expressions = recursive_select( SbuilderSexp::AbstactExpression )
  super.select { |e| !e.is_a?(SbuilderSexp::UnitExpression) }
end

#has_attribute_accessors ⇒ boolean

Returns true if expression defines record accessor.

Returns:

  • (boolean) —

    true if expression defines record accessor



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# File 'lib/parser/parser_nodes.rb', line 206

def has_attribute_accessors
  attribute_accessors && attribute_accessors.any?      
end