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https://github.com/mozilla/gecko-dev.git
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2cdf527022
Replaced `ScaffoldingConverter` with a set of `FfiValue*` classes. The differences are: * The new classes better match other `uniffi-bindgen-gecko-js` names, and also use familiar UniFFI terms like `Lift` and `Lower`. * Object handles are now freed if there's an error. * The new classes store the FFI value internal rather than defining an `IntermediateType` associated type. * Moved header files into `mozilla/uniffi/` and removed the `UniFFI` prefix from the filename. This avoids weird filenames like `UniFFIFfiValue.h` Differential Revision: https://phabricator.services.mozilla.com/D240696
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_UniFFIRust_h
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#define mozilla_UniFFIRust_h
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#include <stdint.h>
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namespace mozilla::uniffi {
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// Low-level Rust structs for UniFFI
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// RustCallStatus.code values
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constexpr int8_t RUST_CALL_SUCCESS = 0;
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constexpr int8_t RUST_CALL_ERROR = 1;
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constexpr int8_t RUST_CALL_INTERNAL_ERROR = 2;
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// Future continutation code values
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constexpr int8_t UNIFFI_FUTURE_READY = 0;
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constexpr int8_t UNIFFI_FUTURE_MAYBE_READY = 1;
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// Return values for callback interfaces (See
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// https://github.com/mozilla/uniffi-rs/blob/main/uniffi_core/src/ffi/foreigncallbacks.rs
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// for details)
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constexpr int8_t CALLBACK_INTERFACE_SUCCESS = 0;
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constexpr int8_t CALLBACK_INTERFACE_ERROR = 1;
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constexpr int8_t CALLBACK_INTERFACE_UNEXPECTED_ERROR = 2;
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// structs/functions from UniFFI
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extern "C" {
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struct RustBuffer {
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uint64_t capacity;
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uint64_t len;
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uint8_t* data;
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};
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struct ForeignBytes {
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int32_t len;
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uint8_t* data;
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};
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struct RustCallStatus {
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int8_t code;
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RustBuffer error_buf;
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};
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typedef int (*ForeignCallback)(uint64_t handle, uint32_t method,
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const uint8_t* argsData, int32_t argsLen,
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RustBuffer* buf_ptr);
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typedef void (*FutureCallback)(uint64_t futureHandle, int8_t code);
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// Poll a future.
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//
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// If the future is ready, then `futureCallback` will be called with
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// `UNIFFI_FUTURE_READY` If the future is pending, then `futureCallback` will be
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// called with `UNIFFI_FUTURE_MAYBE_READY` when the Rust waker is invoked.
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typedef void (*PollFutureFn)(uint64_t futureHandle, FutureCallback callback,
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uint64_t callback_data);
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// Free a future
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typedef void (*FreeFutureFn)(uint64_t futureHandle);
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RustBuffer uniffi_rustbuffer_alloc(uint64_t size, RustCallStatus* call_status);
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void uniffi_rustbuffer_free(RustBuffer buf, RustCallStatus* call_status);
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}
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} // namespace mozilla::uniffi
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#endif /* mozilla_UniFFIRust_h */
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