FUNCTION acyclic

(* SCHEMA Ap242_managed_model_based_3d_engineering_mim_LF; *)

FUNCTION acyclic (arg1: generic_expression; 
			arg2: SET OF generic_expression): BOOLEAN;

LOCAL
	result: BOOLEAN := TRUE;
END_LOCAL;

IF ('AP242_MANAGED_MODEL_BASED_3D_ENGINEERING_MIM_LF.SIMPLE_GENERIC_EXPRESSION'
	IN TYPEOF (arg1)) 
THEN
	RETURN (TRUE);
END_IF;

IF arg1 IN arg2 
THEN 
	RETURN (FALSE);
END_IF;

IF 'AP242_MANAGED_MODEL_BASED_3D_ENGINEERING_MIM_LF.UNARY_GENERIC_EXPRESSION' 
	IN TYPEOF (arg1) 
THEN 
	RETURN 
	(acyclic(arg1\unary_generic_expression.operand,arg2+[arg1]));
END_IF;

IF 'AP242_MANAGED_MODEL_BASED_3D_ENGINEERING_MIM_LF.BINARY_GENERIC_EXPRESSION' 
	IN TYPEOF (arg1) 
THEN 
	RETURN 
	(acyclic(arg1\binary_generic_expression.operands[1],arg2+[arg1])
	AND
	acyclic(arg1\binary_generic_expression.operands[2],arg2+[arg1]));
END_IF;

IF 
'AP242_MANAGED_MODEL_BASED_3D_ENGINEERING_MIM_LF.MULTIPLE_ARITY_GENERIC_EXPRESSION' 
	IN TYPEOF (arg1) 
THEN 
	result := TRUE;
	REPEAT i := 1 TO 
			SIZEOF (arg1\multiple_arity_generic_expression.operands);
		result := result AND
		acyclic(arg1\multiple_arity_generic_expression.operands[i], arg2+[arg1]);
	END_REPEAT;

	RETURN (result);
END_IF;
	RETURN (result);
END_FUNCTION; -- acyclic

Referenced By

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2012-03-27T17:20:10-04:00