🎯 Pattern Matching (match)

match to zaawansowane dopasowywanie wzorców z destructuringiem.

Podstawowe użycie

let result = match value {
    0 -> "zero",
    1 -> "one",
    _ -> "other"
};
        

Destructuring obiektów

let point = {x: 10, y: 20};

let result = match point {
    {x, y} -> `Point at ${x}, ${y}`,
    _ -> "Unknown"
};
print(result);  // "Point at 10, 20"
        

Destructuring list

let coords = [3, 4];

let desc = match coords {
    [a, b] -> `2D: ${a}, ${b}`,
    [a, b, c] -> "3D point",
    _ -> "Unknown"
};
        

Match z guard (warunkiem)

let value = 42;

let category = match value {
    n if n < 0 -> "negative",
    n if n == 0 -> "zero",
    n if n < 100 -> "medium",
    _ -> "large"
};
print(category);  // "medium"
        

Praktyczne przykłady

// Obsługa różnych kształtów
fn area(shape) {
    return match shape {
        {type: "circle", radius: r} -> PI * r * r,
        {type: "rectangle", width: w, height: h} -> w * h,
        {type: "square", side: s} -> s * s,
        _ -> 0
    };
}

print(area({type: "circle", radius: 5}));
print(area({type: "rectangle", width: 4, height: 3}));
        