Is there any way to traverse each field of a zon?

[jinzhongjia]

I want to parse the build.zig.zon file and get all the dependencies

[Durobot]

I can't think of a simple way to do that with or without zon_get_fields.

zon_get_fields is based on the assumption that the user (you) knows the structure of the ZON text they want to read / parse / get values from.

build.zig.zon's .dependencies, on the other hand, can contain unknown number of arbitrarily named nested structures.
See here, for example - .dependencies contains two nested structs, .libz and .libmp3lame, but these names can be pretty much anything.

If I were to solve this problem, I'd take a look at the way fn walkAst works, and I would write a similar function, but instead of trying to return the value of the field specified by its path_itr parameter, this function would enumerate its nested fields (structs). Knowing their names you would then be able to call getFieldVal to get their url and hash fields.

This, of course, would require some work on your part.
Sorry to disappoint, but that's the way it is, currently.

[Durobot]

Here's a quick and dirty solution I came up with:
https://gist.github.com/Durobot/985edc8b04718c79b0ca3469af9380b1
This just prints out the names of the fields that sit at the end of the path you provide to enumerateChildren ("abc" and "def").

It works when "dependencies" is either a struct, or an array of structs (see the code that is commented out in pub fn main()).

Feel free to do with this code whatever you want.

Hope this helps.

[jinzhongjia]

nice work

[Durobot]

@jinzhongjia - I'm going to close this issue, if this is OK with you.