kingchenc
b7ef63400d
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.
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Roadmap
This roadmap describes the project's direction at a high level. It is
intentionally non-binding: priorities shift with feedback and available time,
and the authoritative, up-to-date view of planned work is the
issue tracker. Shipped changes
are recorded in CHANGELOG.md.
Status
Wickra is pre-1.0. The public API is largely stable but may still change in minor releases; breaking changes are called out in the changelog.
Themes
- Indicator coverage. Continue broadening the indicator catalogue across families (trend, momentum, volatility, volume, statistics, market profile, and more), each with the same streaming/batch parity and test guarantees.
- API stabilization toward 1.0. Settle the public
IndicatorandBarBuildertraits and the binding surfaces, then commit to semantic versioning stability for a 1.0 release. - Performance. Keep per-tick updates O(1) and maintain the benchmark suite; investigate further allocation and cache improvements.
- Bindings parity. Keep the Python, Node.js and WebAssembly bindings — plus the C ABI and the C# / .NET, Go and R bindings generated from it — in lockstep with the Rust core, including type stubs and platform coverage.
- Documentation. Maintain a deep-dive page per indicator on https://docs.wickra.org, plus quickstarts and cookbook material.
- Project health. Maintain test coverage, static and dynamic analysis, signed releases, and supply-chain monitoring.
How to influence the roadmap
Open or comment on an issue, or start with the feature-request template. Well-scoped proposals and pull requests are the most effective way to move an item forward.