Macro json_typed

macro_rules! json_typed {
    (owned, $($json:tt)+) => { ... };
    (borrowed, $($json:tt)+) => { ... };
}

Constructs a simd_json::Value from a JSON literal and allows specifying whether it generates an owned or borrowed variant.

Adapted from: https://github.com/serde-rs/json/blob/5b5f95831d9e0d769367b30b76a686339bffd209/src/macros.rs

Create an owned value of the form:

let value: OwnedValue = json_typed!(owned, {
    "code": 200,
    "success": true,
    "payload": {
        "features": [
            "serde",
            "json"
        ]
    }
});

Create a borrowed value of the form:

let value: BorrowedValue = json_typed!(borrowed, {
    "code": 200,
    "success": true,
    "payload": {
        "features": [
            "serde",
            "json"
        ]
    }
});

Variables or expressions can be interpolated into the JSON literal. Any type interpolated into an array element or object value must implement Serde’s Serialize trait, while any type interpolated into a object key must implement Into<String>. If the Serialize implementation of the interpolated type decides to fail, or if the interpolated type contains a map with non-string keys, the json! macro will panic.

let code = 200;
let features = vec!["serde", "json"];

let value = json_typed!(owned, {
    "code": code,
    "success": code == 200,
    "payload": {
        features[0]: features[1]
    }
});

Trailing commas are allowed inside both arrays and objects.

let value = json_typed!(borrowed, [
    "notice",
    "the",
    "trailing",
    "comma -->",
]);

It works for both Borrowed and owned values natively without the need for calling into() unlike the json! macro which supports owned values only.

let owned_value: OwnedValue = json_typed!(owned, {
    "code": 200,
    "success": true,
    "payload": {
        "features": [
            "serde",
            "json"
        ]
    }
});

let borrowed_value: BorrowedValue = json_typed!(borrowed, {
    "code": 200,
    "success": true,
    "payload": {
        "features": [
            "serde",
            "json"
        ]
    },
    "empty_obj": {},
    "empty_array": [],
}).into();