Difference between revisions of "Isa"
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== isa == | == isa == | ||
| − | <c>isa</c> is a binary [[operators|operator]] which tests the left-hand operator for membership in the type defined by the right-hand side. That right-hand operator could be a user-defined map (to which the left-hand side might belong via the <c>__isa</c> chain), or it could be one of the built-in types [[number]], [[string]], [[list]], [[map]], or [[funcRef]]. | + | <c>isa</c> is a [[:Category:Keywords|keyword]] binary [[operators|operator]] which tests the left-hand operator for membership in the type defined by the right-hand side. That right-hand operator could be a user-defined map (to which the left-hand side might belong via the <c>__isa</c> chain), or it could be one of the built-in types [[number]], [[string]], [[list]], [[map]], or [[funcRef]]. |
[[Category:Language]] | [[Category:Language]] | ||
Revision as of 23:23, 19 February 2020
Because this wiki software does not allow topic names to begin with an underscore, this page contains two different topics.
__isa
__isa is a special entry in a map that refers to the map's base class. It is part of MiniScript's support for object-oriented programming.
isa
isa is a keyword binary operator which tests the left-hand operator for membership in the type defined by the right-hand side. That right-hand operator could be a user-defined map (to which the left-hand side might belong via the __isa chain), or it could be one of the built-in types number, string, list, map, or funcRef.
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