protocol: add generated bindings and conformance fixtures

tools/run_native_conformance.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import pathlib
+import subprocess
+import tempfile
+
+ROOT = pathlib.Path(__file__).resolve().parents[1]
+
+
+def run(command: list[str]) -> None:
+    result = subprocess.run(command, cwd=ROOT, text=True, capture_output=True)
+    if result.returncode != 0:
+        raise SystemExit(result.stdout + result.stderr)
+    print(result.stdout.strip())
+
+
+def main() -> int:
+    with tempfile.TemporaryDirectory(prefix="versevdi-protocol-conformance-") as directory:
+        temp = pathlib.Path(directory)
+        rust_bin = temp / "rust-conformance"
+        swift_bin = temp / "swift-conformance"
+        run(["rustc", "tools/native_conformance.rs", "-O", "-o", str(rust_bin)])
+        run([str(rust_bin)])
+        main_source = temp / "main.swift"
+        main_source.write_text((ROOT / "tools/native_conformance.swift").read_text(encoding="utf-8"), encoding="utf-8")
+        run(["swiftc", "-parse-as-library", "gen/swift/Protocol.swift", str(main_source), "-o", str(swift_bin)])
+        run([str(swift_bin)])
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())