mudasobwa
How to Generate Custom Types with Macros
The post covering how to generate nifty types to use in @spec in compile time with macros.
Most Liked
mudasobwa
It does not matter what arity are types, I meant one could parametrize call to use Scaffold with types, not parametrized types themselves.
Parameteized types would be handled for granted. I have removed “parametrized” from the tagline to avoid misunderstanding, thanks.
Qqwy
But what about adding them outside of the quote, rather than adding them to the quote you are writing anyway? Or maybe you might write them in their own dedicated quote before the final quoted AST that is returned?
The main reason to use the explicit AST-notation is to pattern-match on it (which you cannot do with quoted fragments because the meta fields of {name, meta, arguments} would often not match). In places where you are constructing AST it is virtually always more understandable to work with quote/unquote, in my humble opinion 
.
mudasobwa
For the sake of consistency I posted it here: Elixir Blog Posts - #627 by benlime
Popular in Guides/Tuts
Other popular topics
Latest on Elixir Forum
Sponsor Spotlight
Build Elixir applications with speed and confidence.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #channels
- #elixirconf
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #elixir-ls
- #phoenix_html
- #iex
- #blog-post
- #graphql
- #genstage
- #ai
- #websockets
- #supervisor
- #advent-of-code
- #elixirconf-us
- #distillery
- #processes
- #forms
- #api
- #metaprogramming
- #security
- #performance
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Real-time error tracking, performance insights, and observability for devs.
Practical resources that improve the lives of professional developers.
Develop your skills with books, videos, and courses.
Enabling companies to succeed by building software people love.
Courses that'll move you from confusion to "Aha, now I get it!"