Catrobat.IDE.Core.Formulas.FormulaInterpreter.SetOrigin C# (CSharp) Method

        private IEnumerable<IFormulaToken> SetOrigin(IList<IFormulaToken> tokens)
        {
            for (var index = 0; index < tokens.Count; index++)
            {
                var token = tokens[index];
                // clones tokens because _origin depends on unique tokens
                token = token.Clone();
                SetOrigin(token, Range.Single(index));
                yield return token;
            }
        }