Elamur Groupantsrt-mixed-link-rename
The groupant beside tools/roundtrip/src/mixed/link.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 |
| descriptant | present | descriptant |
| invariant | partial | invariant |
| 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 |
role_scope | role_scope | partial source derived model | role_scope |
single_lookup | single_lookup | partial source derived model | single_lookup |
preserved_fields | preserved_fields | partial source derived model | preserved_fields |
empty_map | empty_map | partial source derived model | empty_map |
Model text
descriptant
Descriptant
Prospective epoch
2026-10-31 source review predicted: Clone each frame, replace IDs and and lists in agent/patient/recipient/place/obls using simultaneous one lookup. Resource model: O(frame clone bytes + entity ID lookups * log map size); output owns cloned frames. External prospective.md predates test additions and preserves APIs, effect order, hazards and interaction hypotheses.
Observed epoch
Bounded real helper checks in tests.md constrain these models; syntax is a partial lexical projection with no macro expansion, name resolution or proof. Production expressions unchanged; six inline test modules added. Compiled mutants are temporary and exactly restored. Existing malformed-input and nonfinite domains remain explicit, not silently repaired. Parent composes this scope with siblings without adding overlapping costs twice.
Narrow Role entity rename scope; finite checks do not cover all inputs. Parent effects and other functions are outside this fragment.
approximant
Forward relation
Clone each frame, replace IDs and and lists in agent/patient/recipient/place/obls using simultaneous one lookup.
Domain: Scope: Role entity rename. Stable piece/frame order; valid frames; finite counters without overflow. Arbitrary inverse maps may collide; roundtrip rename additionally requires original renamed IDs not to collide with untouched target-domain IDs.
invariant
Invariant and cost
Invariant
Scope: Role entity rename. Stable piece/frame order; valid frames; finite counters without overflow. Arbitrary inverse maps may collide; roundtrip rename additionally requires original renamed IDs not to collide with untouched target-domain IDs.
Cost
O(frame clone bytes + entity ID lookups * log map size); output owns cloned frames.
Limits
Narrow Role entity rename scope; finite checks do not cover all inputs. Parent effects and other functions are outside this fragment. No percentage surrogate is implemented: categorical parsing/effect observations lack an admitted numerical error metric. Any future profile must define its metric/domain and use only1/2/5/10 percent caps.
models
Typed source-bound relations
Subject: exact source SHA-256 in manifest. Domain and resource premises are in invariant.md. Each model is partial, source-derived, over a single helper invocation or the described finite trace. Complements are proposed inner exclusions under those premises; reverse relations retain all compatible antecedents, with no unique inverse claim. The oracle is the named checks in tests.md; unexecuted cases remain hypotheses. No numerical approximation certificate.
behavior_complement
Within this scoped helper relation, outputs violating the stated forward equation or its preserved fields are excluded under the domain premises; this is a partial source-derived inner exclusion, not a claim about untested panics. verbs and attributes excluded from renaming.
reverse_reconstruction
Inverse relation unique only on injective map and noncolliding untouched IDs.
role_scope
verbs and attributes excluded from renaming
single_lookup
a->b and b->c maps a only to b
preserved_fields
cloned non-ID frame fields remain equal
empty_map
empty map yields equal frames without aliasing input
tests
Checks and evidence
Named source/helper checks: mixed::link::wave32_tests::greedy_links_and_inverse.
Wave32 on2026-10-31:10 distinct exact tests passed twice debug and twice release, with equal sorted named outcomes. This node claims only its listed subset; empty subset means source review only. Five actual source-behavior mutants compiled, failed assertions, restored exact bytes/hash, and passed focused green reruns. No assertion-only mutants; existing swapped-input controls are separate. Receipt bundle: $MOVA_DATA/runs/octopus-wave32-rt_mixed-2026-10-31 (native-commands.json, source-test-map.json, mutation-results.json, .status/.log). No live corpus, teacher, frozen assessment, download or production data used.
Narrow Role entity rename scope; finite checks do not cover all inputs. Parent effects and other functions are outside this fragment.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/tools/roundtrip/src/mixed/link.rs.groupant/rename.groupant/