Class: SbuilderSexp::LValue

Inherits:

Root

• Object
• Treetop::Runtime::SyntaxNode
• Root
• SbuilderSexp::LValue

Includes:

TlaParserS::LValue

Defined in:

lib/parser/parser_nodes.rb

Instance Method Summary

• #expression ⇒ AbstactExpression

  For the LValue.

• #expressions ⇒ Object

  AbstractExpression.travers: no automatic traversal.

• #lvalue_down ⇒ nil|RecordField

  Implement traverse down for ‘recurse_lvalue’.

Methods included from TlaParserS::LValue

#default_lvalue, #lvalue, #recurse_lvalue

Methods inherited from Treetop::Runtime::SyntaxNode

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

Instance Method Details

#expression ⇒ AbstactExpression

Returns for the LValue.

Returns:

• (AbstactExpression) —

  for the LValue

# File 'lib/parser/parser_nodes.rb', line 224

def expression
  recursive_select( SbuilderSexp::AbstactExpression).first
end

#expressions ⇒ Object

AbstractExpression.travers: no automatic traversal

# File 'lib/parser/parser_nodes.rb', line 219

def expressions
  nil
end

#lvalue_down ⇒ nil|RecordField

Implement traverse down for ‘recurse_lvalue’. In my case recurse ‘SbuilderSexp::UnitExpression’, which define record access by value or by name

Returns:

• (nil|RecordField) —

  down next level in hierarchy

# File 'lib/parser/parser_nodes.rb', line 235

def lvalue_down
  down = recursive_select( SbuilderSexp::UnitExpression ).first
  # down = recursive_select( SbuilderSexp::RecordField ).first
  # return nil unless down
  # down.recursive_select( SbuilderSexp::RecordField ).first
end