Elamur Groupantstranslation-meta-heb_enc
The groupant beside tools/translate/src/heb_enc.rs in the Mova repository: what the code computes, what it never does, how to go back from its outputs, its invariants, cost and checks.
Facts
Implementation material. A Mova code model describes this code at one source revision: partial models, finite checks and their stated scope. It is not a reviewed general exposition, and its labels are shown as written, never raised.
Components
| component | label | where |
|---|---|---|
| approximant | partial | approximant |
| ast | partial | syntax.json |
| composition | partial | composition |
| cost | symbolic source derived | invariant |
| descriptant | present | descriptant |
| invariant | partial | invariant |
| tests | bounded native receipts | tests |
Obernants
The typed relations around the forward model: the behaviour complement (what the code never does), the reverse reconstruction (every input compatible with an output) and specialised views.
| id | type | label | where |
|---|---|---|---|
behavior_complement | behavior_complement | partial source derived model | behavior_complement |
reverse_reconstruction | reverse_reconstruction | partial source derived model | reverse_reconstruction |
owner_emission | owner_emission | partial source derived model | owner_emission |
signature_projection | signature_projection | partial source derived model | signature_projection |
failure_order | failure_order | partial source derived model | failure_order |
order_residual | order_residual | partial source derived model | order_residual |
Parts
Model text
descriptant
Description and epoch memory
Train first token of each owner to five-field Hebrew signature and later tokens to empty. Four-level backoff emits lexical plurality. encode resolves heads through empty emitters. measure compares normal output separately from residual-conditioned reconstruction and records earliest failure.
Prospective epoch 2026-10-31
Models predicted metadata loss, bounded coordinate transport and deterministic tie selection before test changes. Production bytes are preserved; only five inline synthetic tests were appended across the group.
Observation epoch 2026-10-31
Selected named native tests are bound in tests.md; raw receipts are external under $MOVA_DATA/runs/octopus-wave32-tr_meta-2026-10-31. Syntax is generated twice and byte-compared. This is partial syntax without macro expansion or semantic resolution.
Gaps
No real annotator/model loads, corpus translation, teacher calls, GPU, full training/evaluation, or language-accuracy claim. No executable percentage surrogate is supplied: an appropriate reference metric/domain is not established. Supported future caps are1/2/5/10 percent only. Residual reconstruction is conditional on retained diagnostics and is not persistent learning.
approximant
Forward relation
Train first token of each owner to five-field Hebrew signature and later tokens to empty. Four-level backoff emits lexical plurality. encode resolves heads through empty emitters. measure compares normal output separately from residual-conditioned reconstruction and records earliest failure.
invariant
Invariant and cost
Domain and preservation
In-range meta heads and aligned owners; signature generated by sig with delimiter-safe fields; counts representable. moved operates valid Take indices and choose_bits requires0<=k<=n.
Cost
Four map updates per meta token, emit scans row counts, head resolution O(m²); moved O(s log s), tree/residual helper costs additional.
Counters and allocation arithmetic must remain representable. String/map costs include compared bytes; finite evidence is not a throughput estimate.
composition
Local composition
The child isolates the translation-meta-heb_enc-encode relation inside this source. Its observation is a projection of the complete file relation described in approximant.md; costs overlap and must not be added twice. The remaining code supplies context/table inputs and consumes outputs. External joins: meta MTok feeds profile, Hebrew encoder, fwt and rules; meta LCS feeds logic and alignment-based training; Strong labels optionally override IBM ownership. No runtime chain between all children is asserted.
models
Typed models
Subject: exact source hash in manifest; observation is one call or the stated finite training pass. All models are partial source-derived relations, not universal proof. Domain and resource assumptions are in invariant.md. The baseline exclusion is an inner source-derived claim on that domain; reverse is a compatible-antecedent relation. Specialized relations hold fixed the parameters and tables unless stated otherwise. Evidence uses the named checks in tests.md; individual assertions cover only finite parts, other branches remain prospective.
behavior_complement
Repeated owner cannot emit twice within one training pair. gate_ok does not imply normal exact/chrf=1; empty encoder can pass via residual patches.
reverse_reconstruction
Encoded words admit nonemitting meta tokens and many contexts; original forms/groups require stored stack residual. Exact reverse is conditional on all scripts, lookup and target spelling, not learned language understanding.
owner_emission
First valid owner wins even if later meta tokens have more suitable grammar.
signature_projection
Signature retains lemma/upos/xpos/feats/rel, omits form/head/gloss/strong.
failure_order
Meta-world failure precedes words, written words, text; count-mismatch branch stores text and checks only meta/words.
order_residual
moved complements a strictly increasing source-index subsequence; equal source indices cannot both remain.
tests
Checks and evidence
- heb_enc::tests::hebrew_from_the_meta_world_and_back
Exact cargo commands use package translate, binary translate, --offline --locked and -- --exact --test-threads=1. External native-commands.json lists every name; debug and release run twice, numerical status and named outcomes retained. Some tests target other portions of the file; this fragment has source reasoning plus only the overlapping assertions.
Compiled controls mutate production decision expressions and restore exact original bytes; see external mutations.json and restoration receipt. No assertion-only mutation is counted. The evidence summary is authoritative for completed receipts. Scoped source reasoning and finite tests do not establish total branch coverage.
Recorded 2026-10-31 result
This source contributes 1 exact named checks to the 18-check group. Every name passes twice in debug and twice in release, with identical sorted outcomes. A compiled production mutation in heb_enc.rs was rejected by its selected runtime assertion; its original and restored SHA-256 match. All 18 checks pass again after all nine restorations. There were nine rejected production mutations, zero assertion-only mutations and zero surviving controls in this batch. Nine source projections matched byte-for-byte across two generations. No original production bytes changed.
The augmented-registry check has no owned source or fragment diagnostic. Only root-owned inference-core/mova child/source bindings await integration. A first isolated-registry experiment was unsuitable because the checker inspects unrelated existing sidecars; those failures are retained separately and are not counted as semantic controls.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/tools/translate/src/heb_enc.rs.groupant/