Module value 

Value: the plain-data payload type for everything that crosses an event or binding boundary.

A click payload, a drag event’s fields, a readback for a script: all of them are a Value, so Rust, Lua, Node and C see one shape. A Rust app that wants an exhaustive match over its own payloads puts a typed enum on top with crate::message.

use kui_core::Value;

let v = Value::map([
    ("kind", Value::str("drag")),
    ("x", Value::from(1.5f32)),
    ("n", Value::from(4usize)),
    ("on", true.into()),
]);
assert_eq!(v.get_str("kind"), Some("drag"));
assert_eq!(v.get_f32("x"), Some(1.5));
assert_eq!(v.get_float("n"), Some(4.0)); // an int reads as a float
assert_eq!(v.get_str("x"), None); // the wrong type is None
assert_eq!(Value::from("save"), Value::Str("save".into()));

Structs

Handles

How a binding spells the handles inside a readback (a node key, a resource id) when a shape crosses as a Value. A JS number cannot hold a 64-bit handle and a Lua integer can, so Node writes sixteen hex digits (Handles::HEX) and Lua the integer itself (Handles::INT).

Enums

Value

A dynamically typed value: null, bool, int, float, string, list or an ordered string-keyed map. See the module docs for an example.