Wrong number of equations reported

[Jan Brugård]

Consider the following model:

model WrongNumberofEquations
  type Transparency= Modelica.Icons.TypeReal(min=0, max=1);
  type Shininess= Modelica.Icons.TypeReal(min=0, max=1);
  input Transparency transparency=0 ;
  Shininess shininess=0 ;
end WrongNumberofEquations;

The model reports that it has 3 equations and 1 variable, which is clearly incorrect. Both types are aliases of type Real. If the model is changed to use reals instead it reports 1 equation and 1 variable (i.e. it works, but it should probably report to of each whereof one is input):

model WrongNumberofEquations2
  input Real transparency=0 ;
  Real shininess=0 ;
end WrongNumberofEquations2;

[Jan Brugård]

MathCore ticket: ​http://intranet/trac/mathmodelica/ticket/2993

[Adrian Pop]

Counting of equations is a back-end issue.

[Jan Brugård]

Adrian, for my education, is it always? I thought that it could depend on where it all goes wrong (Peter is not here to ask)?

[Per Östlund]

It's not always the backend, because it can't count correctly that which is not correct. This is therefore fixed in revision 6960 of trunk, see test case mosfiles/ComplexTypeEquationCount. I'll add it to the 1.5.1-Maintenance branch too.

[Peter Aronsson]

The problem is indeed in the frontend:

instantiateModel(WrongNumberofEquations) =>
"class WrongNumberofQuations

input Real transparency(min = 0.0, max = 1.0) = 0.0;
Real shininess(min = 0.0, max = 1.0) = 0.0;

equation

transparency = 0.0;
shininess = 0.0;

end WrongNumberofQuations;
Note that equations should not be generated, since they are variable bindings.

[Peter Aronsson]

Ooops,

Someone fixed it while I was editing the ticket. ;)