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.
19 lines
718 B
R
19 lines
718 B
R
.onLoad <- function(libname, pkgname) {
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# On Windows the package's wickra.dll depends on the bundled C ABI
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# wickra_abi.dll; the loader searches PATH for it, so prepend the package's own
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# libs directory. On Linux/macOS the rpath baked at build time locates the
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# shared library, so no PATH change is needed.
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if (.Platform$OS.type == "windows") {
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libs <- system.file(paste0("libs", .Platform$r_arch),
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package = pkgname, lib.loc = libname)
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if (nzchar(libs)) {
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Sys.setenv(PATH = paste(libs, Sys.getenv("PATH"), sep = .Platform$path.sep))
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}
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}
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library.dynam("wickra", pkgname, libname)
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}
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.onUnload <- function(libpath) {
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library.dynam.unload("wickra", libpath)
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}
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