979486600a
Root cause of HAMT failure: Janet uses 64-bit doubles, bit operations
require 32-bit signed ints. Hash values from Janet exceed this range.
Solution: Replaced bit-trie HAMT with simple array-based implementation:
- find-key-index: linear scan for key lookup
- node-assoc: append-to-array on insert, clone+update on replace
- node-find: linear scan for value retrieval
All operations work correctly:
(hash-map :a 1) → {:root [:a 1], :count 1}
(hash-map :a 1 :b 2) → {:root [:a 1 :b 2], :count 2}
phm-assoc / phm-get / phm-count all verified
O(n) lookup (acceptable for small maps). HAMT can be reintroduced
once Janet gets proper 32-bit int support or we implement bit ops
in pure Janet.
9 lines
2 KiB
Markdown
9 lines
2 KiB
Markdown
`and`/`or` macros: `(and x y)` → `(let* [and__x x] (if and__x (and y) and__x))`. `(or x y)` → `(let* [or__x x] (if or__x or__x (or y)))`. Registered as macros in core-macro-names. `defrecord` macro builds key-value pairs at expansion time using `array-map` constructor, not `interleave` at eval time.
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SCI added as git submodule at `vendor/sci` (https://github.com/borkdude/sci.git). Clone with `git submodule update --init`. 317/317 forms load from 9 core files. Internal namespaces (interop, parser, opts) partially loaded — parser.cljc needs `utils/new-var` (calls `sci.lang.Var.` constructor) and `edamame/normalize-opts` stubs.
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`:mutable?` compile flag in `api.janet` `init`: persistent Clojure data structures loaded by default. Pass `{:mutable? true}` to use Janet native mutable tuples/tables instead. `load-persistent-structures` function in api.janet loads `src/jolt/clojure/lang/persistent_vector.clj` (17 forms) and swaps `vec`/`vector`/`vector?` bindings in `clojure.core`. PersistentHashMap WIP in `src/jolt/clojure/lang/persistent_hash_map.clj` (24 forms, 328 parens balanced, bitmap calculation broken — inner let expression returns 0 instead of computed value).
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SCI 9 core files (macros, protocols, types, unrestrict, vars, lang, utils, namespaces, core) load with 0 failures in order: macros→protocols→types→unrestrict→vars→lang→utils→namespaces→core. 46 namespaces populated. Internal SCI files (interop, opts, parser, analyzer, interpreter) need edamame/tools.reader stubs but public API works via Jolt-native eval-string that bypasses SCI's eval pipeline.
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Janet `get` DOES follow table prototype chain — confirmed working: `(get child :key :not-found)` returns parent's value if child has prototype set via `table/setproto`. Earlier confusion about `get` not following prototypes was incorrect. The `binding-get` helper that walked prototypes manually was unnecessary and was reverted. Current `resolve-sym` uses: `(get bindings name :jolt/not-found-1)` then falls back to `binding-get` only if `:jolt/not-found-1` returned.
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