From dc343be7adf57a15916897268e682416a1270bae Mon Sep 17 00:00:00 2001 From: Hassan Abedi Date: Mon, 30 Mar 2026 10:41:21 +0200 Subject: [PATCH] Add a status section the IR note file --- .../011-geolog-intermediate-representation.md | 23 +++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/hassan/011-geolog-intermediate-representation.md b/hassan/011-geolog-intermediate-representation.md index 2c705fe..5e62b90 100644 --- a/hassan/011-geolog-intermediate-representation.md +++ b/hassan/011-geolog-intermediate-representation.md @@ -160,6 +160,29 @@ The implemented IR is best understood as a relationalized, flattened theory: So the IR is not just an AST for queries. It is the bridge from elaborated dependent syntax to a database-shaped form that later evaluation code can consume. +## Status + +The IR looks good as a first compiler pass, but not yet as a complete runtime model. + +What already looks solid: + +- It matches the direction described in the other notes: theories become tables plus laws. +- It already lowers nontrivial dependent structure into a relational form. +- It makes important constraints explicit, especially `foreignKeys` and `total`. +- It gives Geolog a plausible backend-neutral compiled form between elaboration and evaluation. + +What still looks missing: + +- explicit runtime state for the chase +- fresh witness generation for existential conclusions +- branch or world tracking for disjunction +- equality-class or term-merging machinery +- provenance and scheduling information + +So the current IR is best seen as a lowered theory IR, not yet a full chase-runtime IR. + +If the project keeps this design, the natural next step is probably a second layer above `FlatTheory` for runtime execution state. That layer would hold current facts, branch identity, fresh-name allocation, equality information, and evaluation metadata. + ## Note `docs/lecture3.tex` has a `Query IR` section header but no content yet, so the code above is currently the most concrete description of the actual intermediate representation.