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https://github.com/logos-messaging/nim-ffi.git
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7e7632a8e9
Avoid magic ret-code integers in the generated callback helpers. The C trampolines already reference NIMFFI_RET_STALE_WARN; mirror that in the other two backends: define the canonical NIMFFI_RET_* set once in the C++ header prelude (guarded so a mixed TU keeps a single definition) and emit module-level NIMFFI_RET_* consts in the Rust crate, then use the named constants for the stale-warn, ok, and missing-callback checks instead of 3/0/2. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
41 lines
1.2 KiB
Smarty
41 lines
1.2 KiB
Smarty
#pragma once
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// Generated bindings require C++20 (designated initializers and other
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// C++20 constructs are used throughout the emitted code).
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// MSVC keeps __cplusplus at 199711L unless /Zc:__cplusplus is passed,
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// so consult _MSVC_LANG when present (it always reflects the active
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// /std:c++XX level).
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#if defined(_MSVC_LANG)
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# if _MSVC_LANG < 202002L
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# error "nim-ffi generated headers require C++20 or later (use /std:c++20)"
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# endif
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#elif !defined(__cplusplus) || __cplusplus < 202002L
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# error "nim-ffi generated headers require C++20 or later"
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#endif
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#include <string>
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#include <cstdint>
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#include <chrono>
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#include <charconv>
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#include <mutex>
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#include <condition_variable>
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#include <memory>
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#include <functional>
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#include <future>
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#include <vector>
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#include <optional>
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#include <type_traits>
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#include <cstring>
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#include <cassert>
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extern "C" {
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#include <tinycbor/cbor.h>
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}
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// nim-ffi result-callback status codes (mirror ffi/ffi_types.nim and the C
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// header). Guarded so a translation unit that also pulls in the C header keeps
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// a single definition.
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#ifndef NIMFFI_RET_OK
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#define NIMFFI_RET_OK 0
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#define NIMFFI_RET_ERR 1
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#define NIMFFI_RET_MISSING_CALLBACK 2
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#define NIMFFI_RET_STALE_WARN 3
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#endif
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