Struct BoundedCell 

pub struct BoundedCell<T: Storable, M: Memory = DefaultMemoryImpl> { /* private fields */ }

A stable cell whose writes enforce the record’s declared Storable bound.

Implementations

impl<T: Storable, M: Memory> BoundedCell<T, M>

pub fn init(memory: RuntimeMemory<M>, value: T) -> Self

Open a current cell or initialize a fresh bounded record. Empty memory or foreign magic initializes the supplied value, potentially overwriting foreign contents. Recognized incompatible layouts are refused.

Panics

Panics for unbounded records or encodings that violate the declared bound. Also retains StableCell::init layout, growth and codec/backing panics.

pub fn get(&self) -> &T

Read the cached current record without serializing or cloning it.

pub fn set(&mut self, value: T) -> T

Validate and persist a complete replacement, returning the prior record.

Panics

Panics before writing if the encoding violates its declared bound.