A library for extracting #[no_mangle] pub extern "C" functions

In order to expose a function with C binary interface for interoperability with other programming languages, Rust developers should use #[no_mangle] attribute and specify ABI for the declared function.

```rust

[no_mangle]

pub extern "C" fn func_name () /* -> ... */ { // ... } ```

You can read about it more here

This library allows to perform syn-driven parsing for obtaining the information about location of these no-mangle-pub-extern-C functions.

Example

main.rs

```rust use nomanglepubexportcfn::{parsefornomanglepubexterncfns, ParsedFile};

fn main() { let crateroot = std::env::var("CARGOMANIFESTDIR").unwrap(); let parsedfiles: Vec = parsefornomanglepubexterncfns(crateroot.asstr()); println!("{:#?}", parsedfiles); } ```

unused.rs ```rust

[no_mangle]

pub extern "C" fn s() { // test } ```

Output on Windows

text [ ParsedFile { path: "...\\no_mangle_pub_export_c_fn\\src\\lib.rs", no_mangle_pub_export_c_fns: NoManglePubExportCFns { no_mangle_pub_export_c_fn_vec: [], }, }, ParsedFile { path: "...\\no_mangle_pub_export_c_fn\\src\\main.rs", no_mangle_pub_export_c_fns: NoManglePubExportCFns { no_mangle_pub_export_c_fn_vec: [], }, }, ParsedFile { path: "...\\no_mangle_pub_export_c_fn\\src\\unused.rs", no_mangle_pub_export_c_fns: NoManglePubExportCFns { no_mangle_pub_export_c_fn_vec: [ NoManglePubExportCFnEnds { start_line: 1, start_column: 0, end_line: 4, end_column: 1, }, ], }, }, ]

Seralization & Deserialization

All structures in this library implement Serialize and Deserialize traits from [https://docs.rs/serde/latest/serde/#]. Because of that you can convert into many data formats supporting serde.

Data formats

[JSON], the ubiquitous JavaScript Object Notation used by many HTTP APIs.
[Bincode], a compact binary format used for IPC within the Servo rendering engine.
[CBOR], a Concise Binary Object Representation designed for small message size without the need for version negotiation.
[YAML], a self-proclaimed human-friendly configuration language that ain't markup language.
[MessagePack], an efficient binary format that resembles a compact JSON.
[TOML], a minimal configuration format used by [Cargo].
[Pickle], a format common in the Python world.
[RON], a Rusty Object Notation.
[BSON], the data storage and network transfer format used by MongoDB.
[Avro], a binary format used within Apache Hadoop, with support for schema definition.
[JSON5], a superset of JSON including some productions from ES5.
[Postcard], a no_std and embedded-systems friendly compact binary format.
[URL] query strings, in the x-www-form-urlencoded format.
[Envy], a way to deserialize environment variables into Rust structs. (deserialization only)
[Envy Store], a way to deserialize [AWS Parameter Store] parameters into Rust structs. (deserialization only)
[S-expressions], the textual representation of code and data used by the Lisp language family.
[D-Bus]'s binary wire format.
[FlexBuffers], the schemaless cousin of Google's FlatBuffers zero-copy serialization format.
[DynamoDB Items], the format used by [rusoto_dynamodb] to transfer data to and from DynamoDB.

License

^{Licensed under either of Apache License, Version
2.0 or MIT license at your option.}

_{Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in this crate by you, as defined in the Apache-2.0 license, shall
be dual licensed as above, without any additional terms or conditions.}