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Feb 27, 2026 at 22:09
110
Should lint suppressions be first class syntax or comments? Adding a proper metadata system (e.g. Clojure or Rust) is a big design space but it's clear which expressions are affected. Comments are much easier to implement but it's easy for users to get them wrong. Thoughts?

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Jun 5, 2025 at 21:08
31
When a tool supports both regular expressions and literal strings, which should be the default? If you default to regex, users can match more strings than they realise (e.g. `foo.txt`) or less (e.g. `foo(bar)`). I typically see regex as the default, but I prefer the opposite.
Mar 15, 2024 at 15:28
The lisp model of programming is generally: write a function, evaluate it, interactively call it with some arguments, iterate. Jupyter notebooks are similar. Why not automatically evaluate definitions (not expressions) whilst working? It seems like it could be a satisfying way to work with code.
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
Introducing C# Source Generators - .NET Blog
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 […]