I'm surprised there are so few programming languages with a built-in database that you can query for facts about definitions.
For example, list all the functions that take three arguments.
We have self-hosting compilers, why not self-host code exploration APIs?
miniblog.
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Futhark's design is deliberately trying to stay simple to keep long term design sustainable.
The author also has an interesting discussion of relative versus absolute paths in import syntax, and how relative paths can make local analysis easier.
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I've added an eval button to the website of my programming language!
It's a been a lot of work to lock down appropriately. It still needs some UI polish but it's so nice to be able to try snippets immediately.
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I've added syntax highlighting to the prompt of my programming language!
It's not strictly necessary, but it's nice to have. It caught a bug with lexing incomplete string literals too.