# Platform Notes

> USearch for Go

### What This Binding Does Not Expose

- __Deferred cursor and stream pulls.__ The C interface takes a deferred completion on `usearch_dense_cursor_next` and `usearch_dense_search_stream_next`, while every pull here blocks on the receiver's executor.
- __Name parsers.__ The `usearch_*_from_name` functions are left out, since enums are never read from strings.
- __Class names and the numeric version.__ `usearch_cpu_class_name`, `usearch_gpu_class_name` and `usearch_version` are unbound; `Version` answers the version's name.

### Design

- __A thin layer over the C ABI.__ Every name follows `c/usearch/`: a C verb `usearch_dense_<verb>` is a `<Verb>` method here, and enums mirror C enums, never strings.
- __The receiver chooses, the verb stays.__ The index runs a verb on the calling goroutine, `On(executor)` blocks on an executor, and `Deferred(executor)` submits it, all with the same arguments.
- __Deferred calls use the language's own idioms.__ `Status` polls through `usearch_outcome_status` and `Wait` blocks through `usearch_outcome_wait`; a goroutine calling `Wait` overlaps the wait, and a `select` reaches it through a channel that goroutine closes.
- __No life of its own.__ The binding starts no goroutines and keeps no queues; releasing a `Deferred` rides `Close`, which waits for the call first, or the collector's cleanup, which frees it only once final.
- __Arenas are lent and reused, never shared.__ Every output whose length scales with the call lands in an arena the caller passes; each rewind bumps the arena's generation, so a stale view answers `StatusUninitialized`.
- __Nothing costs anything until it is used.__ Submitting a call allocates nothing, and an arena allocates only when a call writes into it.
- __Types and configs are the header's.__ Every type is its C name without `usearch_` and `_t`, a verb's argument structure becomes its `Dense*Config`, and every wrapper's documentation names the C symbol it calls or says it is binding-only.