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Adds an R binding (`bindings/r`) over the C ABI hub — the third language stecker after C# and Go, reaching the hub through R's native `.Call` interface (not extendr). ## What's here - **`bindings/r`** — an R package exposing all 514 indicators as constructors that return a `wickra_indicator` object with generic `update`/`batch`/`reset` methods. The C glue (`src/wickra.c`) and R wrappers (`R/indicators.R`) are generated from `bindings/c/include/wickra.h` (same archetype taxonomy as the C#/Go generators: scalar/batch, multi-output, bars, profile, profile-values, array-input). The opaque handle is an R external pointer freed by a registered finalizer; multi-output returns a named vector (`NA` at warmup), bars a matrix, profiles a list. - **`examples/r`** — the full example suite mirroring C/C#/Go: streaming, backtest, multi_timeframe, parallel_assets (`mclapply`), three strategies, and `fetch_btcusdt`/`live_binance`. - **CI** — an `r` job builds the C ABI library, installs the package, runs the `testthat` suite and the offline examples on Linux, macOS and Windows (`R CMD check` is clean: 0 warnings, 0 notes). - **Docs** — R added to the README languages table, project layout, building/testing, CONTRIBUTING binding table + regenerate note, ARCHITECTURE, examples index, issue/PR templates, the About-description template, and the other binding READMEs. ## Linking / distribution The package compiles a thin `.Call` glue layer against the prebuilt C ABI library (header via `WICKRA_INCLUDE_DIR`, library via `WICKRA_LIB_DIR`). On Windows the package's own `wickra.dll` would collide with the C ABI's `wickra.dll`, so `configure.win` stages a renamed copy (`wickra_abi.dll`) and builds an import library referencing it; `install.libs.R` bundles the DLL and `.onLoad` puts it on the load path. On Linux/macOS the rpath locates the shared library. No `release.yml` change — R is distributed via r-universe / source install (gated). No Rust crate or `Cargo.toml` change — the R package is standalone and additive.
1.6 KiB
1.6 KiB
name, about, title, labels, assignees
| name | about | title | labels | assignees | |||
|---|---|---|---|---|---|---|---|
| Performance regression | Report a measurable slowdown, memory blowup, or throughput drop. | [Perf] <indicator / API> regressed in <version> |
|
Summary
Affected code path
- Indicator / API:
e.g. EMA.update - Binding:
Rust / Python / Node / Wasm / C ABI / C# (.NET) / Go / R - Hot loop or one-shot call?
Versions compared
| Version | Throughput / latency / memory | Notes |
|---|---|---|
0.4.1 |
e.g. 12.3 ns/iter |
baseline (Good) |
0.4.2 |
e.g. 38.7 ns/iter |
regressed |
Benchmark / reproducer
cargo bench --bench ema -- --save-baseline new
ema/update time: [38.5 ns 38.7 ns 38.9 ns]
change: [+213.4% +214.8% +216.1%] (p = 0.00 < 0.05)
Performance has regressed.
Hardware / environment
| Field | Value |
|---|---|
| CPU | e.g. Ryzen 9 9950X, AVX2 + AVX512 |
| OS / arch | e.g. Linux 6.8 x86_64 |
| Toolchain | rustc 1.x.y |
| Build flags | RUSTFLAGS=..., --release, profile |