21 lines
868 B
Text
21 lines
868 B
Text
--assume A, B and C to be valid classes
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class X
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feature -- alias for "feature {ANY}"
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-- ANY is the class at the top of the class hierarchy and all classes inherit from it
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-- features following this clause are given "global" scope: these features are visible to every class
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feature {A, B, C, X}
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-- features following this clause are only visible to the specified classes (and their descendants)
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-- classes not in this set do not even know of the existence of these features
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feature {A, B, C}
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-- similar to above, except other instances of X cannot access these features
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feature {X}
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-- features following this clause are only visible to instances of X (and its descendants)
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feature {NONE}
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-- NONE is the class at the bottom of the class hierarchy and inherits from every class
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-- features following this clause are only visible to this particular instance of X
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end
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