{
// Abstract template of a "sour" cocktail.
Sour: {
local drink = self,
// Hidden fields can be referred to
// and overrridden, but do not appear
// in the JSON output.
citrus:: {
kind: 'Lemon Juice',
qty: 1,
},
sweetener:: {
kind: 'Simple Syrup',
qty: 0.5,
},
// A field that must be overridden.
spirit:: error 'Must override "spirit"',
ingredients: [
{ kind: drink.spirit, qty: 2 },
drink.citrus,
drink.sweetener,
],
garnish: self.citrus.kind + ' twist',
served: 'Straight Up',
},
}