kingchenc
91f6f67257
The first language stecker on the C ABI hub: a .NET binding exposing all 514 indicators as idiomatic `IDisposable` classes, generated from `wickra.h`. ## What's here - **`bindings/csharp/`** — the `Wickra` .NET 8 package. `[LibraryImport]` source-generated P/Invoke (`NativeMethods.g.cs`) plus idiomatic wrappers (`Indicators.g.cs`), both generated from the committed `bindings/c/include/wickra.h`. The binding owns no indicator maths — it only marshals types across the C ABI. - **Marshalling, verified end-to-end against the native library.** Opaque handles cross as `nint` kept alive per call via a `SafeHandle`; `bool` as `[MarshalAs(U1)]` (Rust `bool` is one byte); a self-correcting `DllImportResolver` validates the loaded library actually exports the Wickra ABI. Tests cover one representative per FFI archetype (scalar, candle, pairwise, multi-output, bars, profile, values-profile, order-book / array-input) plus exact Sma reference values. - **NuGet packaging** — `dotnet pack` produces `Wickra.<version>.nupkg`; the release pipeline stages prebuilt native libraries under `runtimes/<rid>/native/` for six target triples (win/linux/osx × x64/arm64). - **`examples/csharp/`** — nine examples mirroring `examples/c/`: streaming, backtest, multi_timeframe, parallel_assets, three strategies, and fetch_btcusdt + live_binance. - **CI** — a `csharp` job on the three OSes builds the C ABI, tests the binding, and runs the offline examples. **Release** — a gated `csharp-publish` job packs and pushes to NuGet (gated on `NUGET_API_KEY`, independent of the GitHub-release job so a C# hiccup never blocks the C/C++ asset release). - **Docs consistency wave** — README, CONTRIBUTING, CHANGELOG, examples/README, the issue / PR templates, `sync-about.yml`, and `.gitattributes`. The native Python / Node / WASM bindings and the C ABI are untouched; this is additive. Publishing to NuGet stays gated behind the release tag and the secret.
30 lines
910 B
C#
30 lines
910 B
C#
using Wickra;
|
|
using Wickra.Examples;
|
|
|
|
// Feed a synthetic price series through several indicators tick by tick (O(1) each).
|
|
var prices = MarketData.SyntheticPrices(500);
|
|
|
|
using var sma = new Sma(20);
|
|
using var ema = new Ema(20);
|
|
using var rsi = new Rsi(14);
|
|
using var macd = new MacdIndicator(12, 26, 9);
|
|
|
|
double lastSma = 0, lastEma = 0, lastRsi = 0;
|
|
MacdOutput? lastMacd = null;
|
|
foreach (var price in prices)
|
|
{
|
|
lastSma = sma.Update(price);
|
|
lastEma = ema.Update(price);
|
|
lastRsi = rsi.Update(price);
|
|
lastMacd = macd.Update(price);
|
|
}
|
|
|
|
Console.WriteLine($"Streamed {prices.Length} prices through SMA(20), EMA(20), RSI(14), MACD(12,26,9):");
|
|
Console.WriteLine($" SMA = {lastSma:F4}");
|
|
Console.WriteLine($" EMA = {lastEma:F4}");
|
|
Console.WriteLine($" RSI = {lastRsi:F4}");
|
|
if (lastMacd is { } m)
|
|
{
|
|
Console.WriteLine($" MACD = {m.Macd:F4} signal={m.Signal:F4} hist={m.Histogram:F4}");
|
|
}
|