.. index:: single: No constant if..then..else

No constant if..then..else
##########################

.. rule::
   :filename: constant_if_then_else.py
   :class: ConstantIfThenElse
   :id: id_0011
   :reference: n/a
   :kind: generic
   :tags: if_then_else

   This operator should not be used with constant inputs of boolean type

Description
===========

.. start_description

This rule checks if predefined Operators 'if..then..else' have constant boolean inputs on the left inputs.

.. end_description

Rationale
=========
This enforces compliance with a specific modeling standard by ensuring that ``if..then..else`` operators do not use constant boolean inputs.
The intent is to promote direct use of a boolean expression instead of feeding it into an ``if..then..else`` and returning another, constant boolean.

Verification
============
This rule checks all ``if..then..else`` calls throughout the model and verifies recursively whether any of their inputs is a raw boolean value.

Resolution
==========
Redesign the model to possibly remove the redundant ``if..then..else`` call.

Customization
=============
N/A.