Struct CartItem 

pub struct CartItem {
    pub name: String,
    pub price_cents: u32,
    pub quantity: u32,
}

A line item in the shopping cart.

Immutability

CartItem is immutable once created. Use the builder pattern for complex item construction.

Fields

name: String

Human-readable item name.

price_cents: u32

Price per unit in cents.

quantity: u32

Selected quantity.

Implementations

impl CartItem

pub fn new(name: impl Into<String>, price_cents: u32, quantity: u32) -> Self

Create a new cart item.

pub const fn total_cents(&self) -> u32

Calculate the total price for this line item.

Trait Implementations

impl Clone for CartItem

fn clone(&self) -> CartItem

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CartItem

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for CartItem

fn eq(&self, other: &CartItem) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for CartItem

impl StructuralPartialEq for CartItem