Comment by fjfaase

I have implemented similar behavior in some of my projects. For one, I also have also implemented 'cursors' that point to some part of a value bound to a variable and allow you to change that part of the value of the variable. I have used this to implement program transformations on abstract parse (syntax) trees [1]. I also have implemented a dictionary based on a tree where only part of the tree is modified that needs to be modified [2]. I have also started working on a language that is based on this, but also attempts to add references with defined behavior [3].

[1] https://github.com/FransFaase/IParse/?tab=readme-ov-file#mar...

[2] https://www.iwriteiam.nl/D1801.html#7

[3] https://github.com/FransFaase/DataLang