Macro json

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

Available on crate feature json only.

Implement the Json trait

File extension is json and is automatically appended.

Input

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

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	Json::OS_DIRECTORY	Dir	Dir::Data
$project_directory	The name of the top project folder	Json::PROJECT_DIRECTORY	&str	"MyProject"
$sub_directories	(Optional) sub-directories before file	Json::SUB_DIRECTORIES	&str	"some/dirs"
$file_name	The file name to use	Json::FILE_NAME	&str	"state"

Example

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

json!(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.json.