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Intentional Programming demo (Part 2) - Compiler

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Cited on HN 4 times, 2007–2024, never outright recommended score 0
Years with an HN recommendation, 2007–2026

HN cites it as an early demo of projectional, AST-based programming whenever editors, code views or non-text programming come up.

Part 2 of an old Microsoft Research demo of Intentional Programming, showing the compiler side of a system that stores programs as abstract structure rather than text. The uploader says the companion editor clip is clearer.

“Here are a couple of demo vids from well over 10 years ago” (HN, 2016)

4 citations · Demos · advanced · partly dated

4 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@amichail Feb 2007 Cites it
on HN thread I'm looking for a partner or two (here are some of my ideas, feel free to add your own here)
I am interested in seeing what happens when you apply intentional programming to web [this video] idea is to open up your search engine so that anyone can submit code for domain specific query entry, search, ranking, and presentation of results. Moreover, such code submissions would compete with each other, with more effective ones rising in popularity in their respective domains. Unlike APIs that are currently available, the submissions made by users here would make up the core feature set of the service.
Intentional programming demo as inspiration for an open search platform.
@amichail Mar 2007 Cites it
on HN thread SF Chronicle article about new search startups
I wonder if it would make sense to make a search engine platform where (more technical) users can submit code for domain specific query entry, search, ranking, and presentation of results. Moreover, such code submissions would compete with each other, with more effective ones rising in popularity in their respective domains. Unlike APIs that are currently available, the submissions made by users here would make up the core feature set of the service. This is sort of like intentional programming, but applied to [this video]
Intentional programming compared to a user-programmable search platform.
@corysama Nov 2016 Cites it
on HN thread Ask HN: Is the architecture of programming tools historical accident?
It's a shame the Intentional Software crew have been nearly silent for the a decade or so they've been in business. They've been doing projections-of-ASTs based programming for a very long time. They bragged a lot about it early on and I haven't heard much of anything since. Here are a couple of demo vids from well over 10 years ago: [link] [this video] Here's an interview from 2009 where one of the crew members talks about an annotated S-expression as the core code representation (IIRC, it's been a long time since I listened to it) [link]
Old demo of projectional, AST-based programming from Intentional Software.
@sweetsocks21 Feb 2024 Cites it
on HN thread Clean your codebase with basic information theory
Intentional Software was working on a system like this many years ago: [link] Part 2: [this video] You can project your programs into different views and add lots of metadata about the program and use that data in various contexts. Also extends to source control and other use cases. It looked really neat. I'm not sure what happened to it.
Demo of projecting programs into different views with metadata.

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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