--- title: "mlab-builtins-table-options — Mova code model" description: "Mova code model of mlab/src/builtins/table.rs: components with their labels, obernants and the model text." url: "https://groupants.elamur.ai/free/en/mova/mlab/src/builtins/table.rs.groupant/options.groupant/" --- Elamur: [Mova](https://md.mova.elamur.ai/free/en/) · [Dictionary](https://md.dictionary.elamur.ai/free/en/) · [Research](https://md.research.elamur.ai/free/en/) · **Groupants** This page as HTML: # mlab-builtins-table-options The groupant beside mlab/src/builtins/table.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 - **kind:** groupant_fragment - **status:** partial source bound model - **source:** [`mlab/src/builtins/table.rs`](https://github.com/ElamurAI/mova-free/blob/main/mlab/src/builtins/table.rs) - **source SHA-256:** `f1b0959092cfcdd3…` - **covers:** Register installs table/date/file entrypoints. opts consumes name/value pairs, lowercase ASCII, opt searches reversed so last wins. table consumes it.arg_names before validating VariableNames. summary drops numeric NaN for summaries and prints via it.out. (bytes 474–6880) - **part of:** [mlab-builtins-table](https://md.groupants.elamur.ai/free/en/mova/mlab/src/builtins/table.rs.groupant/) - **repository folder:** [`mlab/src/builtins/table.rs.groupant/options.groupant`](https://github.com/ElamurAI/mova-free/tree/main/mlab/src/builtins/table.rs.groupant/options.groupant) - **repository commit:** `48f2e6f74146` > **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](#approximant) | | **ast** | partial | `../syntax.json` | | **cost** | symbolic source derived | [invariant](#invariant) | | **descriptant** | present | [descriptant](#descriptant) | | **invariant** | partial | [invariant](#invariant) | | **tests** | partial bounded parent evidence | [tests](#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](#behavior-complement) | | `reverse_reconstruction` | reverse_reconstruction | partial source derived model | [reverse_reconstruction](#reverse-reconstruction) | | `option_shadow` | option_shadow | partial source derived model | [option_shadow](#option-shadow) | | `summary_missing` | summary_missing | partial source derived model | [summary_missing](#summary-missing) | | `branch_relation` | branch_relation | partial source derived model | [branch_relation](#branch-relation) | | `resource_cost` | resource_cost | partial source derived model | [resource_cost](#resource-cost) | ## Model text ### descriptant #### mlab-builtins-table-options Register installs table/date/file entrypoints. opts consumes name/value pairs, lowercase ASCII, opt searches reversed so last wins. table consumes it.arg_names before validating VariableNames. summary drops numeric NaN for summaries and prints via it.out. Epoch 2026-10-31: isolated source-bound fragment over bytes [474,6880); includes no claim beyond this relation. Source hash f1b0959092cfcdd3cbd171a48d252ce4c1e652b1e56ed030c160e7667d8cbb54. ### approximant #### options: forward relation Register installs table/date/file entrypoints. opts consumes name/value pairs, lowercase ASCII, opt searches reversed so last wins. table consumes it.arg_names before validating VariableNames. summary drops numeric NaN for summaries and prints via it.out. Domain: Well-shaped values and finite practical windows; effects delegated to it.fs. Physical filesystem not exercised. Executable surrogate gap: no measured cheaper implementation with a useful scoped metric is supplied. Categorical/error/effect relations are exact obligations, not percent losses. Future numeric caps only1/2/5/10%. ### invariant #### options: invariant and cost Alpha=1,ALPHA=2 resolves2; unknown options are retained and caller may ignore. Text unique ignores None, numeric summary ignores NaN, logical true counts every nonzero including NaN. Scope-specific cost: O(number of option pairs) storage and scan; summary sorts each present column O(n log n), table construction O(nw). ### models ### behavior_complement Malformed name/value pair excludes successful options; table failure does not restore consumed arg_names. Summary has output effect but returns empty list. ### reverse_reconstruction A parsed option list admits differently cased option names; final opt value admits any earlier duplicates. Table names alone cannot recover arg_names history. ### option_shadow Alpha=1,ALPHA=2 resolves2; unknown options are retained and caller may ignore. ### summary_missing Text unique ignores None, numeric summary ignores NaN, logical true counts every nonzero including NaN. ### branch_relation Register installs table/date/file entrypoints. opts consumes name/value pairs, lowercase ASCII, opt searches reversed so last wins. table consumes it.arg_names before validating VariableNames. summary drops numeric NaN for summaries and prints via it.out. ### resource_cost O(number of option pairs) storage and scan; summary sorts each present column O(n log n), table construction O(nw). ### tests #### Evidence boundary See ../tests.md for the actual selected source test and mutant. These tests sample the file, not every fragment branch. Malformed name/value pair excludes successful options; table failure does not restore consumed arg_names. Summary has output effect but returns empty list. Other branches here are source-derived and unexecuted unless the parent test explicitly calls them.