kingchenc
23d636fd97
Adds a Go binding (`bindings/go`) over the C ABI hub — the second language stecker after C#. ## What's here - **`bindings/go`** — a cgo binding exposing all 514 indicators as idiomatic Go types with `New<Indicator>` constructors and `Update`/`Batch`/`Reset`/`Close` methods. The wrappers in `indicators_gen.go` are generated from `bindings/c/include/wickra.h` (same archetype taxonomy as the C# generator: scalar/batch, multi-output, bars, profile, profile-values, array-input). Opaque handles are freed by `Close()` with a `runtime.SetFinalizer` backstop; pointer arguments are caller-owned, panics never cross the boundary. - **`examples/go`** — the full example suite mirroring C/C#: streaming, backtest, multi_timeframe, parallel_assets (goroutine fan-out), three strategies, and `fetch_btcusdt`/`live_binance`. - **CI** — a `go` job builds the C ABI library, stages it, and runs `gofmt`/`go vet`/`go test` plus the offline examples on Linux, macOS and Windows. - **Docs** — Go 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 binding links the prebuilt C ABI library via cgo (`libwickra.so`/`.dylib`/`wickra.dll` staged under `bindings/go/lib`, gitignored). The native libraries are already shipped per target triple by the existing `c-abi-build` release job; distribution is via the subdirectory module tag `bindings/go/vX.Y.Z` (gated), so `release.yml` needs no new publish job. No Rust crate or `Cargo.toml` change — the Go module is standalone and additive. Not for merge yet (gated, per request).
41 lines
1.1 KiB
Go
41 lines
1.1 KiB
Go
// Feed a synthetic price series through several indicators tick by tick (O(1) each).
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package main
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import (
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"fmt"
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wickra "github.com/wickra-lib/wickra/bindings/go"
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"github.com/wickra-lib/wickra/examples/go/internal/market"
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)
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func main() {
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prices := market.SyntheticPrices(500)
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sma, _ := wickra.NewSma(20)
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defer sma.Close()
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ema, _ := wickra.NewEma(20)
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defer ema.Close()
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rsi, _ := wickra.NewRsi(14)
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defer rsi.Close()
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macd, _ := wickra.NewMacdIndicator(12, 26, 9)
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defer macd.Close()
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var lastSma, lastEma, lastRsi float64
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var lastMacd wickra.MacdOutput
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var haveMacd bool
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for _, price := range prices {
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lastSma = sma.Update(price)
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lastEma = ema.Update(price)
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lastRsi = rsi.Update(price)
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lastMacd, haveMacd = macd.Update(price)
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}
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fmt.Printf("Streamed %d prices through SMA(20), EMA(20), RSI(14), MACD(12,26,9):\n", len(prices))
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fmt.Printf(" SMA = %.4f\n", lastSma)
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fmt.Printf(" EMA = %.4f\n", lastEma)
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fmt.Printf(" RSI = %.4f\n", lastRsi)
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if haveMacd {
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fmt.Printf(" MACD = %.4f signal=%.4f hist=%.4f\n", lastMacd.Macd, lastMacd.Signal, lastMacd.Histogram)
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}
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}
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