Struct DataStack 

pub struct DataStack { /* private fields */ }

Per-thread data stack for bump-allocating frame-local data.

Implementations

impl DataStack

pub fn new() -> Self

Create a new data stack with an initial root chunk.

pub fn has_space(&self, size: usize) -> bool

Check if the current chunk has at least size bytes available.

pub fn push(&mut self, size: usize) -> *mut u8

Allocate size bytes from the data stack.

Returns a pointer to the allocated region (aligned to ALIGN). The caller must call pop() with the returned pointer when done (LIFO order).

pub unsafe fn pop(&mut self, base: *mut u8)

Pop a previous allocation. base must be the pointer returned by push(). Calls must be in LIFO order.

Safety

base must be a valid pointer returned by push() on this data stack, and all allocations made after it must already have been popped.

Trait Implementations

impl Default for DataStack

fn default() -> Self

Returns the “default value” for a type.

impl Drop for DataStack

fn drop(&mut self)

Executes the destructor for this type.

impl Send for DataStack