Class: SetConstantNode

Inherits:
Struct
  • Object
show all
Defined in:
lib/toylang/ast/nodes.rb,
lib/toylang/interpreter/evaluation.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#name ⇒ Object

Returns the value of attribute name

Returns:

  • (Object) —

    the current value of name



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# File 'lib/toylang/ast/nodes.rb', line 36

def name
  @name
end

#value ⇒ Object

Returns the value of attribute value

Returns:

  • (Object) —

    the current value of value



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# File 'lib/toylang/ast/nodes.rb', line 36

def value
  @value
end

Instance Method Details

#eval(context) ⇒ Object 



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# File 'lib/toylang/interpreter/evaluation.rb', line 63

def eval(context)
  raise "Unable to re-assigne constant: #{name}" unless context[name].nil?

  context[name] = value.eval(context)
end