vinibrl
Typespec for any struct with required key
I’m looking for a typespec that would match, for instance:
%Foo{specific_key: "abc"}
%Bar{specific_key: "abc"}
%Baz{specific_key: "abc"}
I’m using %{specific_key: String.t()} but that can match maps as well. Is there something like %_{specific_key: String.t()} as there is for pattern matching (%_{...}) for typespec?
Marked As Solved
brettbeatty
One option would be specifying the :__struct__ field
%{__struct__: module(), specific_key: String.t()}
Though depending on your use case you may not even want to limit it to structs.
Popular in Questions
Other popular topics
Latest on Elixir Forum
Sponsor Spotlight
Practical resources that improve the lives of professional developers. By developers, for developers.
Categories:
Sub Categories:
Forums
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.
Producing high quality Elixir screencasts since 2017.
Enabling companies to succeed by building software people love.
The deployment platform built for Elixir: PaaS ease, VPS control.
Courses that'll move you from confusion to "Aha, now I get it!"