Properties

Kira examples use property-like members inside class or struct declarations and construct forms.

Stored Members

struct Point {
    var x: Float = 0.0
    var y: Float = 0.0
}

Current member storage forms shown in the repo:

• let for immutable stored members
• var for mutable stored members

Default Values

Defaults appear naturally in the checked-in examples:

struct ThemeConfig {
    let title: String = "Operations";
    let highlightLevel: Float = 0.8;
}

struct Point {
    let x: Float = 0.0
    let y: Float = 0.0
}

Assignment

Assignments are statements that can target:

• locals
• fields

Examples from the runnable native examples:

state.viewport_width = 128
state.viewport_height = 128
point.x = 4.0

The semantics layer rejects non-assignable targets with KSEM046.

For @FFI.Struct { layout: c; } descriptors, builder construction is the preferred ergonomic path:

let desc = sapp_desc {
    width: 640
    height: 480
    window_title: "Triangle"
}

That construction form zero-fills omitted C-layout fields. A plain typed declaration such as var desc: sapp_desc stays uninitialized until some later assignment gives it a value.

Properties in Construct Forms

Construct-defined forms also use stored-member syntax:

Widget Card(title: String) {
    @State
    let selected: Int = 0;
}

That means the property surface is not limited to plain struct declarations.