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Aug 24, 2019 at 00:44
How Rust models generators and async functions as memory efficient state machines:
How Rust optimizes async/await I
The issue to stabilize an initial version of async/await in Rust has left final comment period. The feature looks slated to stabilize in an upcoming release, most likely 1.39. This represents the culmination of an enormous amount of work by people all over the Rust community. But it’s also only the beginning of async/await support in Rust. The feature set being stabilized is a “minimum viable product” for shipping async/await, and we plan to continue to expand the feature set after initial stabilization.

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Jun 11, 2023 at 07:59
C# has an interesting concept of second-class macros called Source Generators: https://devblogs.microsoft.com/dotnet/introducing-c-source-generators/ You can generate additional code at build time, but you can't transform existing expressions (unlike normal macros), so it's more amenable to tooling.
Introducing C# Source Generators - .NET Blog
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We’re pleased to introduce the first preview of Source Generators, a new C# compiler feature that lets C# developers inspect user code and generate new C# source files that can be added to a compilation. This is done via a new kind of component that we’re calling a Source Generator. To get started with Source […]
Jan 7, 2023 at 07:33
A survey of parser generator usage in major language implementationss: https://notes.eatonphil.com/parser-generators-vs-handwritten-parsers-survey-2021.html Most have a handwritten parser. GCC and Go moved from generated to handwritten. SQLite and Python <3.10 built their own parser generators!
Parser generators vs. handwritten parsers: surveying major language implementations in 2021 | notes.eatonphil.com
Parser generators vs. handwritten parsers: surveying major language implementations in 2021
Oct 3, 2019 at 18:49
Cute demonstration of implementing generators in terms of delimited continuations: https://defn.io/2019/09/05/racket-generators/ It might be Scheme, but the examples have a lot of syntax! parameterize, let loop, variadic functions, call-with-continuation-prompt (with 2 or 3 args).