Boo.Lang.Compiler.Steps.ProcessMethodBodies.AssertHasSideEffect C# (CSharp) Метод

        void AssertHasSideEffect(Expression expression)
        {
            if (!HasSideEffect(expression) && !TypeSystemServices.IsError(expression))
            {
                Error(CompilerErrorFactory.ExpressionMustBeExecutedForItsSideEffects(expression));
            }
        }