Class: ActsAsCalculator::CastLiquidValue

Inherits:
Object
  • Object
show all
Defined in:
lib/acts_as_calculator/cast_liquid_value.rb

Overview

The one gate into a template's render context. Liquid only dispatches methods on Liquid::Drops and hash-likes, so the sandbox holds exactly as long as nothing else is assigned — an allowlist here is what makes that a property of the code rather than a habit every caller has to remember.

Constant Summary collapse

PASS_THROUGH = 
[
  ::NilClass, ::TrueClass, ::FalseClass, ::String, ::Integer, ::Float,
  ::Date, ::Time, ::Liquid::Drop
].freeze
TIME_WITH_ZONE =

The one class a Rails host will hit that is neither a Date nor a Time, since record.created_at is the obvious thing to pass. Matched by name because the core layer must stay loadable without ActiveSupport, and named rather than duck-typed so this stays an allowlist — respond_to?(:strftime) would admit anything.

"ActiveSupport::TimeWithZone"

Class Method Summary collapse

Class Method Details

.call(value) ⇒ Object 



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# File 'lib/acts_as_calculator/cast_liquid_value.rb', line 18

def self.call(value)
  case value
  when ::Hash then value.to_h { |key, nested| [key.to_s, call(nested)] }
  when ::Array then value.map { |nested| call(nested) }
  when Result then ResultDrop.new(value)
  else scalar(value)
  end
end