Trait Allocation 

pub trait Allocation {
    // Required method
    fn allocated_size(&self) -> UInteger;
}

Protocol for types that track their allocated memory size.

C++ equivalent: MTL::Allocation

This trait corresponds to the Objective-C protocol that all Metal resource types conform to. In Rust, concrete types like Buffer, Texture, and Heap implement this method directly.

Example

// All resource types have allocated_size() directly
let buffer = device.new_buffer(1024, ResourceOptions::default()).unwrap();
println!("Allocated: {} bytes", buffer.allocated_size());

Required Methods

fn allocated_size(&self) -> UInteger

Get the allocated size of this resource in bytes.

This may be larger than the requested size due to alignment requirements.

C++ equivalent: NS::UInteger allocatedSize() const

Implementors