kingchencandGitHub
91e05e3c26
## What
Introduces `wickra-c` — a `cdylib` + `staticlib` that exposes the Rust core over a **C ABI**. This is the hub every C-capable language (C, C++, Go, C#, Java, R) links against, instead of re-wiring each indicator natively. The native Python/Node/WASM bindings are untouched; this is purely additive, for ecosystems without first-class Rust tooling.
## Scope (foundation slice)
This PR deliberately validates the **whole pipeline end to end with one indicator (SMA)** before scaling to all 514, so the CI / cross-OS / header-drift mechanics are proven green first.
- Opaque `*mut T` handles; `wickra_<ind>_{new,update,batch,reset,free}`.
- NaN sentinel for warmup / NULL handles; caller-owned batch buffers; every function NULL-safe.
- cbindgen generates and commits `bindings/c/include/wickra.h` with opaque handle typedefs.
- A C smoke example (`examples/c/`) links the header + compiled library and runs (CMake + ctest).
- A `c-abi` CI job builds the library and runs the smoke test on **Linux, macOS and Windows**, plus a header drift check on Linux.
## Notes
- The per-indicator FFI blocks are plain `#[no_mangle]` functions, **not** a macro: cbindgen cannot see macro-generated functions on stable Rust (macro expansion needs nightly), so the blocks are written literally and will be generated mechanically by the ScriptHelpers `capi` wrapper in a follow-up (same model as the committed-but-generated Node `index.js`).
- `bindings/c` cannot inherit the workspace `forbid(unsafe_code)` lint (the C boundary needs raw pointers), so it mirrors every workspace lint and only relaxes `unsafe_code`. The Rust core stays `unsafe`-forbidden.
## Follow-ups (separate PRs)
- ScriptHelpers `capi` generator + wire the scalar family (~235).
- Hand-written blocks for multi-output / custom-input / bars (~279).
- Docs consistency wave (README / docs / webpage: Python·Node·WASM·Rust → +C).
- Release wiring (native-lib matrix + header/lib GH-release assets) — gated.
79 lines
1.8 KiB
TOML
79 lines
1.8 KiB
TOML
[workspace]
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resolver = "2"
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members = [
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"crates/wickra-core",
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"crates/wickra",
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"crates/wickra-data",
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"bindings/python",
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"bindings/wasm",
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"bindings/node",
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"bindings/c",
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"examples/rust",
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"crates/wickra-bench",
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]
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exclude = ["fuzz"]
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[workspace.package]
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version = "0.7.4"
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authors = ["kingchenc <support@wickra.org>"]
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edition = "2021"
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rust-version = "1.86"
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license = "MIT OR Apache-2.0"
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repository = "https://github.com/wickra-lib/wickra"
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homepage = "https://github.com/wickra-lib/wickra"
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readme = "README.md"
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keywords = ["finance", "trading", "indicators", "technical-analysis", "ta"]
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categories = ["finance", "mathematics", "science"]
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[workspace.dependencies]
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wickra-core = { path = "crates/wickra-core", version = "0.7.4" }
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thiserror = "2"
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rayon = "1.10"
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# Testing
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proptest = "1.5"
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approx = "0.5"
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criterion = { version = "0.8", features = ["html_reports"] }
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# Python binding
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pyo3 = { version = "0.28", features = ["extension-module", "abi3-py39"] }
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numpy = "0.28"
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[workspace.lints.rust]
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unsafe_code = "forbid"
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missing_debug_implementations = "warn"
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unreachable_pub = "warn"
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unused_must_use = "deny"
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[workspace.lints.clippy]
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all = { level = "warn", priority = -1 }
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pedantic = { level = "warn", priority = -1 }
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# Pedantic exceptions for an indicator library that uses floats and small functions everywhere.
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module_name_repetitions = "allow"
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must_use_candidate = "allow"
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missing_errors_doc = "allow"
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missing_panics_doc = "allow"
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cast_precision_loss = "allow"
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cast_possible_truncation = "allow"
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cast_sign_loss = "allow"
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similar_names = "allow"
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float_cmp = "allow"
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[profile.release]
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opt-level = 3
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lto = "fat"
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codegen-units = 1
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panic = "abort"
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strip = true
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[profile.bench]
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opt-level = 3
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lto = "fat"
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codegen-units = 1
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debug = false
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[profile.dev]
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opt-level = 0
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debug = true
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