Class: Code::Node::LeftOperation

Inherits:
Code::Node show all
Defined in:
lib/code/node/left_operation.rb

Defined Under Namespace

Classes: Operator

Instance Method Summary collapse

Constructor Details

#initialize(parsed) ⇒ LeftOperation

Returns a new instance of LeftOperation.



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# File 'lib/code/node/left_operation.rb', line 41

def initialize(parsed)
  return if parsed.blank?

  @first = Statement.new(parsed.delete(:first).presence)
  @others = parsed.delete(:others).presence || []
  @others.map! { |operator| Operator.new(operator) }
end

Instance Method Details

#evaluate(**args) ⇒ Object 



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# File 'lib/code/node/left_operation.rb', line 49

def evaluate(**args)
  first = @first&.evaluate(**args) || Object::Nothing.new

  @others.reduce(first) do |left, right|
    if right.call?
      right.statement.evaluate(
        **args,
        object: left,
        previous_object: args.fetch(:object)
      )
    elsif right.safe_call?
      if left.is_an?(Object::Nothing)
        Object::Nothing.new
      else
        right.statement.evaluate(
          **args,
          object: left,
          previous_object: args.fetch(:object)
        )
      end
    elsif (right.or? && left.truthy?) || (right.and? && left.falsy?)
      left
    else
      left.call(
        **args,
        operator: right.operator,
        arguments: Object::List.new([right.statement.evaluate(**args)])
      )
    end
  end
end

#resolve(**args) ⇒ Object 



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# File 'lib/code/node/left_operation.rb', line 81

def resolve(**args)
  first = @first&.resolve(**args) || Object::Nothing.new

  list = Object::IdentifierList.new([first])

  (@others || []).each do |other|
    resolved =
      other.statement.resolve(
        **args,
        object: list.code_last,
        previous_object: args.fetch(:object)
      )

    if resolved.is_a?(Object::IdentifierList)
      resolved.raw.each { |identifier| list.code_append(identifier) }
    else
      list.code_append(resolved)
    end
  end

  list
end