45 lines
915 B
Ruby
45 lines
915 B
Ruby
module DeclarativePolicy
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# The DSL evaluation context inside rule { ... } blocks.
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# Responsible for creating and combining Rule objects.
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#
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# See Base.rule
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class RuleDsl
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def initialize(context_class)
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@context_class = context_class
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end
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def can?(ability)
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Rule::Ability.new(ability)
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end
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def all?(*rules)
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Rule::And.make(rules)
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end
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def any?(*rules)
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Rule::Or.make(rules)
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end
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def none?(*rules)
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~Rule::Or.new(rules)
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end
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def cond(condition)
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Rule::Condition.new(condition)
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end
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def delegate(delegate_name, condition)
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Rule::DelegatedCondition.new(delegate_name, condition)
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end
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def method_missing(msg, *args)
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return super unless args.empty? && !block_given?
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if @context_class.delegations.key?(msg)
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DelegateDsl.new(self, msg)
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else
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cond(msg.to_sym)
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end
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end
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end
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end
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