Coding Shorts: Building a Source Generator - Part 1
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- เผยแพร่เมื่อ 21 ก.ค. 2024
- Part 2 is now live: • Coding Shorts: Buildin...
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I needed to build a Source Generator for my MinimalApiDiscovery project. Let's dig into how they're built! Let's look at it:
00:00 - Introduction
01:12 - Getting Started
02:32 - Creating the Generator Class
04:36 - The Syntax Provider
08:30 - The Compilation Provider
09:22 - Registering an Output Source
10:22 - Creating the Source Code
12:47 - Creating a Test Project
13:38 - Referencing the Generator
14:46 - Seeing the Generated Code
16:13 - Wrapping Up
Source Code: github.com/shawnwildermuth/co...
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That was really cool. Thanks
this is exactly what i needed. thank you.
Awesome
I always learn so many extra useful things from your videos I love it I always get way more than i planned for and you do it without wasting any time .
Really like your videos. Always find something interesting in them.
I appreciate that!
Your latest content is awesome!
I love this guy. Thanks, Shawn!
Interesting topic, thanks!
Glad you liked it!
Great video! By the way you can drag the class library project and drop it into the console project, this feature saved me opening the add reference window
Thanks for the tip!
Hi Mr Shawn, It was a wonderful video about code generation!! :) ;) I thought that one of the ways to generate code was the T4 templates, but along with this, I think is another thing to do w/ code generate!! Thx You!
Glad you liked it.
Thanks for the video, does part 2 comes next week?
Probably Thursday.
Hi Shawn, will your SG series cover debugging/unit testing source generators?
No unit testing, though it just builds code, so unit testing the generated code shouldn't be too difficult. The second episode (this week) will cover how to read the Roslyn data to build up your own code and how to debug it in Visual Studio. Look for it Thursday.
Please make a video about refresh tokens.
Thanks for the great video. I probobly would not have watched this but it was suggested by youtube's magic suggestion engine... so I did. I think I might re-watch it and experiment with this... anything as an alternative to reflection! =)
Thank you!
@@swildermuth - fyi - I built it but it ended up not working for some reason. The 'using SampleSourceGenerator' line had an error here with a type or namespace name 'type/namespace' could not be found. I added the reference and the Analyzer line in for the project but no luck. I added the project to github but don't want to add it to add it because the comment might be removed.. this is my 3rd post of this text.
Could the Where clause be removed and instead the nullcheck be added to the predicate?
I don't think so, as the predicate is fired as the code changes, the null check to to ensure that the predicates are not null, not the result.
The idea of SG is cool, but it seems that the tools (VS/rider) is not that completely ready.
Shouldn't matter, on tools that do not use them, they are executed at compile time too. Lots of tools you're already using probably employ them and you never noticed.
@@swildermuth I think the SG can be a tool that is biased towards the needs of individual developers, so it is better to be easy to use. But its current usage and syntax do not seem so approachable, and if the tool developed for it is not user-friendly neither, ordinary developers may feel that this tool is inaccessible.
That's why I decided to do the video, to make it more approachable.
Topic is interesting. However, the lack of explicit type declaration made it hard to understand.
I also wish you didn't follow the code, but rather lead the video. Nick Chapsas does an excellent job that way. His narration is very good.
Not sure what you mean , rather not follow the code.
yeah but what even IS a source generator?
Not to be pedantic, but it's code that generates source based on the code you're writing. Generators run while roslyn is parsing your code while you're writing in the editor as well as at build-time.