Input Parser and Enumerations

Question

Simon Parten 2018-10-8

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/422774-input-parser-and-enumerations

回答： Simon Parten 2018-10-8

Can anyone help me with why this might not work?

 classdef WhichIlsop
    enumeration
        Prod()
        Test()
    end    
end

Then when this enum is passed into a function with parameter name ilsop, I want to validate the inputs.

p = inputParser;
  p.KeepUnmatched = true;
      p.FunctionName = 'bah';
      addRequired(p, 'ilsop',  @(x) isa(x, 'WhichIlsop'));
      p.parse(varargin{:});

I get this message when evaluating the 'parse' line. The other lines are the diagnostics I've done below.

 The value of 'ilsop' is invalid. It must satisfy the function: @(x)isa(x,'WhichIlsop'). 
>> class(ilsop)
ans =
  'WhichIlsop'
>> isa(ilsop, 'WhichIlsop')
ans =
logical
 1