Elamur Groupantsframe-adapter-parser
The groupant beside world/src/frames.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 | Forward |
| ast | partial | ../syntax.json |
| composition | partial | Composition |
| cost | partial | Cost |
| descriptant | present | model.md |
| invariant | partial | Invariant |
| tests | coverage recorded | 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 |
|---|---|---|---|
nonbehavior | behavior_complement | partial source derived model | nonbehavior |
antecedents | reverse_reconstruction | partial source derived model | antecedents |
direct-empty | failure_fiber | partial source derived model | direct-empty |
delegate-state | state_transition | partial source derived model | delegate-state |
Model text
descriptant
frame-adapter-parser
Revision 2026-10-29; SHA-256 86c42a1bd562ae24c760a7cbfc3b9b2bab20845da9d7945f3d80f091b8ed44b0.
Forward
Direct parser emptiness differs from public read Result failure; successful read forwards mutable discourse.
Invariant
Query methods borrow immutable worlds; the frame reader mutates caller-owned discourse. Reverse models preserve compatible hidden inputs, never assume unique recovery. Ordering and failure assumptions in catalogs are part of the contract.
Cost
For F facts,T tokens,N frames,V distinct verbs/classes: sum parser/reader dependency costs dominates. Aggregation O((T+N) log V), sorting O(V log V), storage O(V+current discourse/read). vnfreq output O(rows+bytes). No parser complexity or speedup claim.
Composition
Selected source functions only; parent composes shared identity and dependencies. These are not independent pipeline stages or a complete partition.
AST gap
Source-bound syn-2 partial syntax is present. Macro expansion, name resolution, type inference, cfg evaluation, external-module loading and semantic AST remain absent. Child envelopes may overlap and need not cover the file.
Epoch memory
2026-10-29: source-derived first epoch. Historical snapshots do not freeze current labels; direct read_with callers bypass the adapter. Recording errors can retain global state. Preserve these observations when strengthening models. Runtime source is unchanged.
catalog
Typed models: frame-adapter-parser
Subject: ../../frames.rs; SHA-256 86c42a1bd562ae24c760a7cbfc3b9b2bab20845da9d7945f3d80f091b8ed44b0. Revision 2026-10-29. Observations are single terminating calls unless a recording trace is named. Preconditions: finite well-formed inputs, stable dependencies, no allocation failure or integer overflow.
nonbehavior
Type: behavior_complement. Operator/domain/observation: U=(text,ctx,q,annotator outcome,return,final ctx), R checks acquisition then read_with. Inner U minus R includes successful read after initial annotator Err.
Approximation: source-derived conditional relation; unknown behavior outside its declared domain remains unknown. Assumptions: shared preconditions above and descriptant dependency boundaries. Evidence: inspected source and callers; tests.md distinguishes executed checks. Falsifiable oracle: construct admissible inputs, execute the named operation and compare this predicate; contrary output refutes it.
antecedents
Type: reverse_reconstruction. Operator/domain/observation: Read/final Ctx admits all text/initial Ctx/parser states producing it; skipped empty trees prevent unique original text reconstruction.
Approximation: source-derived conditional relation; unknown behavior outside its declared domain remains unknown. Assumptions: shared preconditions above and descriptant dependency boundaries. Evidence: inspected source and callers; tests.md distinguishes executed checks. Falsifiable oracle: construct admissible inputs, execute the named operation and compare this predicate; contrary output refutes it.
direct-empty
Type: failure_fiber. Operator/domain/observation: Empty parse_words vector admits annotator Err or successful empty parse; the observation cannot distinguish them.
Approximation: source-derived conditional relation; unknown behavior outside its declared domain remains unknown. Assumptions: shared preconditions above and descriptant dependency boundaries. Evidence: inspected source and callers; tests.md distinguishes executed checks. Falsifiable oracle: construct admissible inputs, execute the named operation and compare this predicate; contrary output refutes it.
delegate-state
Type: state_transition. Operator/domain/observation: Fixed dependencies make successful read equal read_with(text,ctx,q,&parse_words); read neither clones nor resets ctx. Reader correctness is external.
Approximation: source-derived conditional relation; unknown behavior outside its declared domain remains unknown. Assumptions: shared preconditions above and descriptant dependency boundaries. Evidence: inspected source and callers; tests.md distinguishes executed checks. Falsifiable oracle: construct admissible inputs, execute the named operation and compare this predicate; contrary output refutes it.
tests
Checks
File-root evidence.md records structural checks and a bounded source-extraction Rust probe of attention and coverage arithmetic only. Other catalog oracles are prospective. world/src/tests.rs contains existing history and state-query tests. No complete course, teacher, GPU or neural-parser run is claimed. Parser artifacts, pragmatic reader, lexical tables, external NOMLEX and course loading remain dependency gaps.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/world/src/frames.rs.groupant/parser.groupant/