Respond to an unknown method call: Difference between revisions

Content added Content deleted
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}
}
\\ modules, functions numeric and string, and variables can use same name
\\ modules, functions numeric and string, and variables can use same name
\\ here we have module invoke, funciton invoke, and function invoke$
\\ here we have module invoke, function invoke, and function invoke$
Module invoke (&a, method$) {
Module invoke (&a, method$) {
param=(,)
param=(,)
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call "."+method$, !param
call "."+method$, !param
}
}
} else Flush : Error "unkown method "+method$ ' flush empty the stack
} else Flush : Error "unknown method "+method$ ' flush empty the stack
}
}
Function invoke (&a, method$) {
Function invoke (&a, method$) {
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=Function("."+method$, ![])
=Function("."+method$, ![])
}
}
} else Error "unkown Function "+method$
} else Error "unknown Function "+method$
}
}
\\ invoke string functions
\\ invoke string functions
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=Function$("."+method$, ![])
=Function$("."+method$, ![])
}
}
} else Error "unkown Function "+method$
} else Error "unknown Function "+method$
}
}
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\\ this method has a weak reference to obj, so anytime we use This. or just dot, this weak reference make the real name to execute
\\ this method has a weak reference to obj, so anytime we use This. or just dot, this weak reference make the real name to execute
Obj.a 10,20
Obj.a 10,20
\\ call the fake method (can't access object methods an properties), has empty weak reference to object
\\ call the fake method (can't access object methods and properties), has empty weak reference to object
obj.alfa 10, 20
obj.alfa 10, 20
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\\ to check if a method (module) exist, we have to compare this object with other temporary object
\\ to check if a method (module) exist, we have to compare this object with other temporary object
\\ we make one with the method name and empty definition, and then check if obj has anything this temp object has
\\ we make one with the method name and empty definition, and then check if obj has anything this temp object has
\\ arguments passed in a tuple (optional), so we didn't leave stack with unused items, if we have an unkown method.
\\ arguments passed in a tuple (optional), so we didn't leave stack with unused items, if we have an unknown method.
invoke &obj, "a", (10, 20)
invoke &obj, "a", (10, 20)
invoke &obj, "NoParam"
invoke &obj, "NoParam"
Retrieved from "https://rosettacode.org/wiki/Respond_to_an_unknown_method_call"