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Jan 6, 2018 at 22:17
Interpreters are a great example of software tools where it's easy to settle for something that's easy to implement. Many interpreters don't have native support for displaying result data types as images. I've only seen Racket and Smalltalk offer this.

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Oct 9, 2024 at 05:30
TIL Tcl has a notion of 'safe interpreters', a mode where you can run untrusted code in a sandbox: https://www.tcl.tk/man/tcl8.4/TclCmd/safe.htm Not many programming languages have this, but it's way safer to include in the implementation than try to build as a userland library.
Tcl Tcl Built-In Commands - Safe manual page
Aug 27, 2023 at 03:53
Implementing interactive languages, and the tradeoffs of interpreters, JIT compilers, and AOT compilers:
Implementing interactive languages
May 4, 2023 at 06:52
On storing ASTs in flat arrays for performance, and the relationship with bytecode interpreters:
Flattening ASTs (and Other Compiler Data Structures)
Flattening ASTs (and Other Compiler Data Structures)
This is an introduction to data structure flattening, a special case of arena allocation that is a good fit for programming language implementations. We build a simple interpreter twice, the normal way and the flat way, and show that some fairly mechanical code changes can give you a 2.4× speedup.