Struct GcExceptionLayout

pub struct GcExceptionLayout {
    pub size: u32,
    pub align: u32,
    pub tag_offset: u32,
    pub fields: Vec<GcStructLayoutField>,
}

The layout for a GC-managed exception object.

This layout is only valid for use with the GC runtime that created it. It is not valid to use one GC runtime’s layout with another GC runtime, doing so is memory safe but will lead to general incorrectness like panics and wrong results.

All offsets are from the start of the object; that is, the size of the GC header (for example) is included in the offset.

Fields

size: u32

The size (in bytes) of this struct.

align: u32

The alignment (in bytes) of this struct.

tag_offset: u32

The offset of the VMTagImport pointer.

fields: Vec<GcStructLayoutField>

The fields of this exception object. The ith entry contains information about the ith parameter in the associated tag type.

Implementations

impl GcExceptionLayout

pub fn layout(&self) -> Layout

Get a core::alloc::Layout for an exception object of this type.

Trait Implementations

impl Clone for GcExceptionLayout

fn clone(&self) -> GcExceptionLayout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GcExceptionLayout

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

Formats the value using the given formatter.

impl From<GcExceptionLayout> for GcLayout

fn from(layout: GcExceptionLayout) -> Self

Converts to this type from the input type.