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).
60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
// Trend follower: enter long on a MACD histogram cross up, but only when ADX(14) > 20
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// confirms a trend; exit when the histogram crosses back below zero.
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package main
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import (
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"log"
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"math"
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"os"
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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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bars := loadBars()
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macd, _ := wickra.NewMacdIndicator(12, 26, 9)
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defer macd.Close()
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adx, _ := wickra.NewAdx(14)
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defer adx.Close()
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var returns []float64
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trades := 0
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inPosition := false
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entry := 0.0
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prevHistogram := math.NaN()
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for _, b := range bars {
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m, okMacd := macd.Update(b.Close)
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a, okAdx := adx.Update(b.Open, b.High, b.Low, b.Close, b.Volume, b.Timestamp)
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if !okMacd || !okAdx {
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continue
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}
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trending := a.Adx > 20.0
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if !inPosition && trending && !math.IsNaN(prevHistogram) && prevHistogram <= 0.0 && m.Histogram > 0.0 {
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inPosition = true
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entry = b.Close
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trades++
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} else if inPosition && m.Histogram < 0.0 {
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returns = append(returns, (b.Close-entry)/entry)
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inPosition = false
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}
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prevHistogram = m.Histogram
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}
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market.Print("MACD + ADX trend", market.Summarize(returns, trades, 252.0))
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}
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func loadBars() []market.Bar {
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if len(os.Args) > 1 {
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bars, err := market.LoadOhlcvCsv(os.Args[1])
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if err != nil {
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log.Fatalf("load csv: %v", err)
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}
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return bars
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}
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return market.SyntheticCandles(2000)
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}
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