```ruby
require 'parslet'

module Rip::Compiler
  class AST < Parslet::Transform
    attr_reader :origin

    def initialize(origin)
      @origin = origin
    end

    protected

    def location_for(slice)
      slice.line_and_column
    end
  end
end
```

Change expectations to match reality
user
```ruby
require 'parslet'

module Rip::Compiler
  class AST < Parslet::Transform
    attr_reader :origin

    def initialize(origin = nil, &block)
      @origin = origin
      super(&block)
    end

    def apply(tree, context = nil)
      _context = context ? context : {}
      super(tree, _context.merge(:origin => origin))
    end

    def self.location_for(origin, slice)
      Rip::Utilities::Location.new(origin, slice.offset, *slice.line_and_column)
    end
  end
end
```
assistant