How to require a custom class type with addRequired?
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I have a custom class,
classdef foo
properties
%Property stuff
prop1;
end
methods
function obj = foo( )
%Constructor stuff.
obj.prop1 = 'test';
end
end
end
and I want the input of a function to require that the variable type is this custom class.
function out = fun( varargin )
p = inputParser;
addRequired( p, 'InputName', @(x) isa( x, 'foo' ) );
parse( p, varargin{:} );
% Function stuff
end
When I try doing this
% Script.
objInstance = foo();
out = fun( 'InputName', objInstance )
I get this error:
" The value of 'InputName' is invalid. It must satisfy the function: @(x)isa(x,'foo'). "
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채택된 답변
Steven Lord
2019년 12월 5일
If you're using release R2019b or later, consider using function argument validation instead of inputParser.
But if this function requires an input of this class, should it be a separate function or should it be a method defined inside the class itself?
classdef foo
methods
function out = fun(x)
% x MUST be a foo (which could mean it's a subclass of foo)
end
end
end
추가 답변 (1개)
Luna
2019년 12월 5일
Variable out is not defined in the function bar. Also bar is already a built-in function. Use another function name instead.
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