Struct DefaultSlot 

pub struct DefaultSlot<'a, I: Item, II: ItemInstance<I>> {
    pub item_instance: Option<II>,
    pub modified: bool,
    pub phantom: PhantomData<&'a I>,
}

A sample slot struct used for testing.

A significant reduction in boiler plate would come from making your own slot non-generic. For the purpose of an example, I decided that I wanted mine to be generic to prove it was possible if for some reason you need that functionality.

The main thing you probably want to change other than that is the transfer method. some methods like half_stack_split and combine_stack would be pretty useful.

Fields

item_instance: Option<II>

modified: bool

phantom: PhantomData<&'a I>

Trait Implementations

impl<'a, I: Item, II: ItemInstance<I> + Debug> Debug for DefaultSlot<'a, I, II>

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

Formats the value using the given formatter.

impl<'a, I: Item, II: ItemInstance<I> + Sized + Clone> Slot<I, II> for DefaultSlot<'a, I, II>

fn item_instance(&self) -> Option<II>

Get the item instance stored by this slot.

fn set_item_instance(&mut self, item_instance: &Option<II>)

Set the item instance stored by this slot.

fn modified(&mut self) -> bool

Whether the slots contents have been modified.

fn set_modified(&mut self, modified: bool)

Sets whether the slots contents have been modified.

fn new(item_instance: Option<II>) -> Self

fn transfer(&mut self, item_instance: Option<II>, _button: &str) -> Option<II>

Switch out the item instance stored in this slot with some rules.