June 2024
Beginner to intermediate
320 pages
8h 59m
English
Content preview from Write Powerful Rust Macros
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4 Making fields public with attribute macros
This chapter covers
- Understanding the differences between derive macros and attribute macros
- Finding field information in the abstract syntax tree
- Retrieving fields by using matching
- Retrieving fields with a custom struct
- Retrieving fields with a custom struct and a
Parseimplementation - Adding multiple outputs in
quote - Debugging macros with log statements
- Understanding the
no-paniccrate
Rust likes to hide information. A function, struct, or enum is private by default, and the same goes for the fields of a struct. This is very sensible, though occasionally slightly annoying when you have a struct that has a lot of fields that are better off being public. Data Transfer Objects (DTOs) are a ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.