The compiler accepts illegal connections

[Martin Sjölund]

This should *not* work (only connector classes may be connected):

class A
  Real x,y=1;
equation
  connect(x,y);
end A;

[Martin Sjölund]

Postponed until 1.9.1

[Martin Sjölund]

This ticket was not closed for 1.9.1, which has now been released. It was batch modified for milestone 1.9.2 (but maybe an empty milestone was more appropriate; feel free to change it).

[Martin Sjölund]

Milestone changed to 1.9.3 since 1.9.2 was released.

[Martin Sjölund]

Moved to new milestone 1.9.4

[Martin Sjölund]

Milestone pushed to 1.9.5

[Martin Sjölund]

Milestone renamed

[Martin Sjölund]

Ticket retargeted after milestone closed

[Martin Sjölund]

Milestone moved to 1.12.0 due to 1.11.0 already being released.

[Francesco Casella]

With the new front end in OMC v1.13.0-dev-148-g3532b10, I get:

1] 23:22:10 Symbolic Error
Too few equations, under-determined system. 
The model has 1 equation(s) and 2 variable(s).

[2] 23:22:10 Symbolic Warning
Variable x does not have any remaining equation to be solved in.
  The original equations were:

This is really not good. The Modelica Specification, section 9.1, states:
"The connect-equation construct takes two references to connectors..."

If any of the two references in the connect statement is not a connector, a specific error should be issued, it makes no sense to continue further with the back-end.

[Francesco Casella]

As of 1.13.0, the new front-end produces this error

[1] 14:44:28 Translation Error
[A: 4:3-4:15]: x is not a valid connector.

This will be the default behaviour in 2.0.0