October 2019
Intermediate to advanced
444 pages
10h 37m
English
Content preview from Rust Programming Cookbook
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How it works...
While design patterns, if-else constructs, and API design, in general, facilitate reusing code, it becomes tricky when it's time to hardcode tokens (for example, certain names) to remain loosely coupled. Rust's macros can help with that. As an example, we generate functions and tests for those functions in an effort to avoid copying and pasting test code around files.
In step 3, we declare a macro that wraps around comparing the lengths of two sequences and provides a better error message. Step 4 uses this macro right away and creates a function with the name provided, but only if the lengths of the multiple input Vec instances match.
In step 5, we call the macros and provide them with the required input: a name (for the ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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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.