Add a walk method

[emilos]

Hey,

thanks for the great lib 👍 . I was wondering if you'd mind adding a walk method to it. I'm using it in every project in which I use himalaya. Some parsers, like acorn, expose such methods for conveniance.

[coveralls]

Coverage remained the same at 100.0% when pulling 5435721 on emilos:master into f0b8700 on andrejewski:master.

[andrejewski]

@emilos Thanks for the PR.

Tree walking can be pretty complex depending on what you want to do. Himalaya's API is intentionally very small so that layers can be built on top. I created paul to do different types of tree-walking when I first wrote Himalaya. I removed its usage just before v1 because it was not core functionality.

I recommend making a himalaya-walk package if you are interested, especially since you have tests and everything already.

I am closing this. I appreciate you taking the time to give back to the community, and hope Himalaya is working well for you.

[emilos]

@andrejewski thx, I totally understand what you mean, I thought it's better to ask first. I've published https://github.com/buxlabs/himalaya-walk for simple use cases