Enum miri::interpret::GlobalAlloc
source · pub enum GlobalAlloc<'tcx> {
Function(Instance<'tcx>),
VTable(Ty<'tcx>, Option<Binder<'tcx, ExistentialTraitRef<'tcx>>>),
Static(DefId),
Memory(ConstAllocation<'tcx>),
}
Expand description
An allocation in the global (tcx-managed) memory can be either a function pointer, a static, or a “real” allocation with some data in it.
Variants§
Function(Instance<'tcx>)
The alloc ID is used as a function pointer.
VTable(Ty<'tcx>, Option<Binder<'tcx, ExistentialTraitRef<'tcx>>>)
This alloc ID points to a symbolic (not-reified) vtable.
Static(DefId)
The alloc ID points to a “lazy” static variable that did not get computed (yet). This is also used to break the cycle in recursive statics.
Memory(ConstAllocation<'tcx>)
The alloc ID points to memory.
Auto Trait Implementations§
impl<'tcx> !RefUnwindSafe for GlobalAlloc<'tcx>
impl<'tcx> Send for GlobalAlloc<'tcx>
impl<'tcx> Sync for GlobalAlloc<'tcx>
impl<'tcx> Unpin for GlobalAlloc<'tcx>
impl<'tcx> !UnwindSafe for GlobalAlloc<'tcx>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 40 bytes
Size for each variant:
Function
: 36 bytesVTable
: 36 bytesStatic
: 8 bytesMemory
: 12 bytes