Macro messagepack

macro_rules! messagepack {
    ($data:ty, $dir:expr, $project_directory:expr, $sub_directories:expr, $file_name:expr) => { ... };
}

Available on crate feature messagepack only.

Implement the MessagePack trait

File extension is messagepack and is automatically appended.

Input

These are the inputs you need to provide to implement MessagePack.

Variable	Description	Related Trait Constant	Type	Example
$data	Identifier of the data to implement for		struct or enum	MyState
$dir	Which OS directory to use	MessagePack::OS_DIRECTORY	Dir	Dir::Data
$project_directory	The name of the top project folder	MessagePack::PROJECT_DIRECTORY	&str	"MyProject"
$sub_directories	(Optional) sub-directories before file	MessagePack::SUB_DIRECTORIES	&str	"some/dirs"
$file_name	The file name to use	MessagePack::FILE_NAME	&str	"state"

Example

use serde::{Serialize,Deserialize};
use disk::*;

messagepack!(State, Dir::Data, "MyProject", "some/dirs", "state");
#[derive(Serialize,Deserialize)]
struct State {
    string: String,
    number: u32,
}

This example would be located at ~/.local/share/myproject/some/dirs/state.messagepack.