Elamur Groupantshbo-library-merge
The groupant beside tools/hbo/src/lib.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 |
| cost | symbolic source derived | invariant-and-cost |
| descriptant | present | descriptant |
| invariant | partial | invariant-and-cost |
| tests | executed bounded checks | 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 |
partial_commit | partial_commit | partial source derived model | partial_commit |
column_window | column_window | partial source derived model | column_window |
positional_identity | positional_identity | partial source derived model | positional_identity |
zero_sentences | zero_sentences | partial source derived model | zero_sentences |
Model text
descriptant
Descriptant
2026-10-31, prospective epoch: inspected source before edits and predicted Validate sentence count then each word count and copy annotations2..7 by flattened position.
Measured epoch: bounded supplied fixtures passed twice in debug and release; six behavioral mutants were rejected after compilation, each restored exactly. These observations support the scoped equations without extending them to corpus accuracy, semantic understanding or persistent learning. Production code bytes are unchanged; only isolated tests appended. No benchmark or percentage surrogate was introduced.
Retained caveats: Finite supplied-input checks only; no corpus, training, external annotator, GPU, throughput or semantic-understanding claim. Allocation exhaustion and malformed arbitrary model arithmetic are not exhaustively exercised. No useful numerical surrogate is implemented; future caps may only be 1/2/5/10% with a declared metric.
approximant
Forward relation
Validate sentence count then each word count and copy annotations2..7 by flattened position.
Domain: Preserve base0,1,8,9 and token structure; earlier mutations remain on late error.
Source snapshot SHA-256: 660faca62417f9a1eb9807a014127f1b4b868caf5e3f488a8cd6a1e716572143. This is a partial source-derived mathematical relation, not an executable surrogate. Tests exercise actual production helpers with synthetic inputs.
models
Typed model catalog
Subject: hbo-library-merge at SHA-256 660faca62417f9a1eb9807a014127f1b4b868caf5e3f488a8cd6a1e716572143. Domain and fixed state: Preserve base0,1,8,9 and token structure; earlier mutations remain on late error.. Observation: return values, stated mutations and failure order of this scope. Models are partial source-derived relations; finite tests can falsify them but do not prove general completeness. Behavior complement is a scoped exclusion claim in the admitted transition universe. Reverse reconstruction retains compatible antecedents, not a unique historical cause. Specialized entries hold this domain fixed and isolate their named observation. Oracle: named actual-code fixtures in tests.md; unexecuted effect boundaries remain static hypotheses.
behavior_complement
No mutation on global sentence-count mismatch; no current-sentence mutation before its word count matches.
reverse_reconstruction
Output loses previous base annotations while parsed nonannotation columns remain unconstrained.
partial_commit
Sentence j failure retains completed copies for indices<j.
column_window
Inclusive columns2..7 copied; DEPS8 and MISC9 untouched.
positional_identity
Equal counts accepted regardless of forms/IDs.
zero_sentences
Empty base and parsed succeeds with no effects.
tests
Bounded evidence
Primary actual-code fixture: wave32::cuts_views_and_partial_merge_effects. Run using cargo test --offline --locked -p hbo --lib wave32::cuts_views_and_partial_merge_effects -- --exact --test-threads=1; repeat with --release. The external wave32 Hbo receipt set contains all 14 named outcomes twice per profile, numeric exit statuses, six compiled behavioral source negatives and byte-exact restoration hashes, and two identical source syntax projections. Source-local primary tests include assertions and caught expected panics. Fragments share these source witnesses; no claim of one test per branch.
Finite supplied-input checks only; no corpus, training, external annotator, GPU, throughput or semantic-understanding claim. Allocation exhaustion and malformed arbitrary model arithmetic are not exhaustively exercised. No useful numerical surrogate is implemented; future caps may only be 1/2/5/10% with a declared metric.
invariant-and-cost
Invariant and cost
Preserve base0,1,8,9 and token structure; earlier mutations remain on late error.
Cost
O(W+Bannotation) copies, O(Wmax) word references.
Resources must permit allocations; cost variables are source bytes, units, words and table entries as explicitly stated. No measured speed or universal error claim.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/tools/hbo/src/lib.rs.groupant/merge.groupant/