2021-03-11 00:02:25 +03:00

114 lines
3.5 KiB
Rust

/*
* Copyright 2020 Fluence Labs Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//! Rust backend SDK for applications on the Fluence network. This crate defines the procedure macro
//! `#[fce]` that could be applied to a function, structure or extern block.
//!
//! Structures with `#[fce]` (hereinafter they'll be called records) could be used then in function
//! arguments and values. All fields of a record should be public and have one of the
//! following primitive Rust types
//! (`bool, u8, u16, u32, u64, i8, i16, i32, i64, f32, f64, String, Vec<u8>`).
//! ```rust
//! use fluence::fce;
//!
//! #[fce]
//! struct T {
//! pub field_1: i32,
//! pub field_2: Vec<u8>,
//! }
//! ```
//!
//! Functions with `#[fce]` will be exported from this module:
//!
//! ```rust
//! use fluence::fce;
//!
//! #[fce]
//! pub fn get(url: String) {
//! // ...
//! }
//! ```
//! At now, such functions could have arguments with primitive Rust types and record and only one
//! return argument with such type could be used.
//!
//! Finally, to import other wasm modules to your project use similar code:
//! ```rust
//! use fluence::fce;
//!
//! #[fce]
//! #[link(wasm_import_module = "wasm_curl.wasm")]
//! extern "C" {
//! #[link_name = "get"]
//! pub fn curl_get(url: String) -> String;
//! }
//! ```
#![doc(html_root_url = "https://docs.rs/fluence/0.4.2")]
#![deny(
dead_code,
nonstandard_style,
unused_imports,
unused_mut,
unused_variables,
unused_unsafe,
unreachable_patterns
)]
#![warn(rust_2018_idioms)]
pub use fluence_sdk_macro::fce;
pub use fluence_sdk_main::CallParameters;
pub use fluence_sdk_main::SecurityTetraplet;
#[cfg(target_arch = "wasm32")]
pub use fluence_sdk_main::get_call_parameters;
#[cfg(feature = "logger")]
pub use fluence_sdk_main::WasmLoggerBuilder;
#[cfg(feature = "logger")]
pub use fluence_sdk_main::TargetMap;
pub use fluence_sdk_main::mounted_binary::Result as MountedBinaryResult;
pub use fluence_sdk_main::mounted_binary::StringResult as MountedBinaryStringResult;
pub use fluence_sdk_main::mounted_binary::SUCCESS_CODE as BINARY_SUCCESS_CODE;
/// These API functions are intended for internal usage in generated code.
/// Normally, you shouldn't use them.
pub mod internal {
pub use fluence_sdk_main::get_result_ptr;
pub use fluence_sdk_main::get_result_size;
pub use fluence_sdk_main::set_result_ptr;
pub use fluence_sdk_main::set_result_size;
}
const VERSION_SIZE: usize = env!("CARGO_PKG_VERSION").len();
const fn sdk_version() -> [u8; VERSION_SIZE] {
const VERSION_AS_STR: &[u8] = env!("CARGO_PKG_VERSION").as_bytes();
let mut version_as_array: [u8; VERSION_SIZE] = [0; VERSION_SIZE];
let mut byte_id = 0;
while byte_id < VERSION_SIZE {
version_as_array[byte_id] = VERSION_AS_STR[byte_id];
byte_id += 1;
}
version_as_array
}
#[cfg(target_arch = "wasm32")]
#[link_section = "__fluence_sdk_version"]
#[doc(hidden)]
pub static FLUENCE_SDK_VERSION: [u8; VERSION_SIZE] = sdk_version();