[][src]Trait rustc_mir::interpret::machine::Machine

pub trait Machine<'mir, 'tcx>: Sized {
    type MemoryKind: Debug + Display + MayLeak + Eq + 'static;
    type PointerTag: Debug + Copy + Eq + Hash + 'static;
    type ExtraFnVal: Debug + Copy;
    type FrameExtra;
    type MemoryExtra;
    type AllocExtra: AllocationExtra<Self::PointerTag> + 'static;
    type MemoryMap: AllocMap<AllocId, (MemoryKind<Self::MemoryKind>, Allocation<Self::PointerTag, Self::AllocExtra>)> + Default + Clone;

    const GLOBAL_KIND: Option<Self::MemoryKind>;

    fn enforce_alignment(memory_extra: &Self::MemoryExtra) -> bool;
fn enforce_validity(ecx: &InterpCx<'mir, 'tcx, Self>) -> bool;
fn find_mir_or_eval_fn(
        ecx: &mut InterpCx<'mir, 'tcx, Self>,
        instance: Instance<'tcx>,
        args: &[OpTy<'tcx, Self::PointerTag>],
        ret: Option<(PlaceTy<'tcx, Self::PointerTag>, BasicBlock)>,
        unwind: Option<BasicBlock>
    ) -> InterpResult<'tcx, Option<&'mir Body<'tcx>>>;
fn call_extra_fn(
        ecx: &mut InterpCx<'mir, 'tcx, Self>,
        fn_val: Self::ExtraFnVal,
        args: &[OpTy<'tcx, Self::PointerTag>],
        ret: Option<(PlaceTy<'tcx, Self::PointerTag>, BasicBlock)>,
        unwind: Option<BasicBlock>
    ) -> InterpResult<'tcx>;
fn call_intrinsic(
        ecx: &mut InterpCx<'mir, 'tcx, Self>,
        instance: Instance<'tcx>,
        args: &[OpTy<'tcx, Self::PointerTag>],
        ret: Option<(PlaceTy<'tcx, Self::PointerTag>, BasicBlock)>,
        unwind: Option<BasicBlock>
    ) -> InterpResult<'tcx>;
fn assert_panic(
        ecx: &mut InterpCx<'mir, 'tcx, Self>,
        msg: &AssertMessage<'tcx>,
        unwind: Option<BasicBlock>
    ) -> InterpResult<'tcx>;
fn binary_ptr_op(
        ecx: &InterpCx<'mir, 'tcx, Self>,
        bin_op: BinOp,
        left: ImmTy<'tcx, Self::PointerTag>,
        right: ImmTy<'tcx, Self::PointerTag>
    ) -> InterpResult<'tcx, (Scalar<Self::PointerTag>, bool, Ty<'tcx>)>;
fn box_alloc(
        ecx: &mut InterpCx<'mir, 'tcx, Self>,
        dest: PlaceTy<'tcx, Self::PointerTag>
    ) -> InterpResult<'tcx>;
fn init_allocation_extra<'b>(
        memory_extra: &Self::MemoryExtra,
        id: AllocId,
        alloc: Cow<'b, Allocation>,
        kind: Option<MemoryKind<Self::MemoryKind>>
    ) -> (Cow<'b, Allocation<Self::PointerTag, Self::AllocExtra>>, Self::PointerTag);
fn tag_global_base_pointer(
        memory_extra: &Self::MemoryExtra,
        id: AllocId
    ) -> Self::PointerTag;
fn init_frame_extra(
        ecx: &mut InterpCx<'mir, 'tcx, Self>,
        frame: Frame<'mir, 'tcx, Self::PointerTag>
    ) -> InterpResult<'tcx, Frame<'mir, 'tcx, Self::PointerTag, Self::FrameExtra>>;
fn stack<'a>(
        ecx: &'a InterpCx<'mir, 'tcx, Self>
    ) -> &'a [Frame<'mir, 'tcx, Self::PointerTag, Self::FrameExtra>];
fn stack_mut<'a>(
        ecx: &'a mut InterpCx<'mir, 'tcx, Self>
    ) -> &'a mut Vec<Frame<'mir, 'tcx, Self::PointerTag, Self::FrameExtra>>;
fn ptr_to_int(
        _mem: &Memory<'mir, 'tcx, Self>,
        _ptr: Pointer<Self::PointerTag>
    ) -> InterpResult<'tcx, u64>; fn abort(_ecx: &mut InterpCx<'mir, 'tcx, Self>) -> InterpResult<'tcx, !> { ... }
fn access_local(
        _ecx: &InterpCx<'mir, 'tcx, Self>,
        frame: &Frame<'mir, 'tcx, Self::PointerTag, Self::FrameExtra>,
        local: Local
    ) -> InterpResult<'tcx, Operand<Self::PointerTag>> { ... }
fn access_local_mut<'a>(
        ecx: &'a mut InterpCx<'mir, 'tcx, Self>,
        frame: usize,
        local: Local
    ) -> InterpResult<'tcx, Result<&'a mut LocalValue<Self::PointerTag>, MemPlace<Self::PointerTag>>>
    where
        'tcx: 'mir
, { ... }
fn before_terminator(
        _ecx: &mut InterpCx<'mir, 'tcx, Self>
    ) -> InterpResult<'tcx> { ... }
fn before_access_global(
        _memory_extra: &Self::MemoryExtra,
        _alloc_id: AllocId,
        _allocation: &Allocation,
        _static_def_id: Option<DefId>,
        _is_write: bool
    ) -> InterpResult<'tcx> { ... }
fn canonical_alloc_id(
        _mem: &Memory<'mir, 'tcx, Self>,
        id: AllocId
    ) -> AllocId { ... }
fn adjust_global_const(
        _ecx: &InterpCx<'mir, 'tcx, Self>,
        val: ConstValue<'tcx>
    ) -> InterpResult<'tcx, ConstValue<'tcx>> { ... }
fn before_deallocation(
        _memory_extra: &mut Self::MemoryExtra,
        _id: AllocId
    ) -> InterpResult<'tcx> { ... }
fn retag(
        _ecx: &mut InterpCx<'mir, 'tcx, Self>,
        _kind: RetagKind,
        _place: PlaceTy<'tcx, Self::PointerTag>
    ) -> InterpResult<'tcx> { ... }
fn after_stack_push(
        _ecx: &mut InterpCx<'mir, 'tcx, Self>
    ) -> InterpResult<'tcx> { ... }
fn after_stack_pop(
        _ecx: &mut InterpCx<'mir, 'tcx, Self>,
        _frame: Frame<'mir, 'tcx, Self::PointerTag, Self::FrameExtra>,
        _unwinding: bool
    ) -> InterpResult<'tcx, StackPopJump> { ... }
fn int_to_ptr(
        _mem: &Memory<'mir, 'tcx, Self>,
        int: u64
    ) -> InterpResult<'tcx, Pointer<Self::PointerTag>> { ... }
fn thread_local_alloc_id(
        _ecx: &mut InterpCx<'mir, 'tcx, Self>,
        did: DefId
    ) -> InterpResult<'tcx, AllocId> { ... } }
⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Methods of this trait signifies a point where CTFE evaluation would fail and some use case dependent behaviour can instead be applied.

Associated Types

type MemoryKind: Debug + Display + MayLeak + Eq + 'static

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Additional memory kinds a machine wishes to distinguish from the builtin ones

type PointerTag: Debug + Copy + Eq + Hash + 'static

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Tag tracked alongside every pointer. This is used to implement "Stacked Borrows" https://www.ralfj.de/blog/2018/08/07/stacked-borrows.html. The default() is used for pointers to consts, statics, vtables and functions. The Debug formatting is used for displaying pointers; we cannot use Display as () does not implement that, but it should be "nice" output.

type ExtraFnVal: Debug + Copy

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Machines can define extra (non-instance) things that represent values of function pointers. For example, Miri uses this to return a function pointer from dlsym that can later be called to execute the right thing.

type FrameExtra

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Extra data stored in every call frame.

type MemoryExtra

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Extra data stored in memory. A reference to this is available when AllocExtra gets initialized, so you can e.g., have an Rc here if there is global state you need access to in the AllocExtra hooks.

type AllocExtra: AllocationExtra<Self::PointerTag> + 'static

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Extra data stored in every allocation.

type MemoryMap: AllocMap<AllocId, (MemoryKind<Self::MemoryKind>, Allocation<Self::PointerTag, Self::AllocExtra>)> + Default + Clone

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Memory's allocation map

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Associated Constants

const GLOBAL_KIND: Option<Self::MemoryKind>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

The memory kind to use for copied global memory (held in tcx) -- or None if such memory should not be mutated and thus any such attempt will cause a ModifiedStatic error to be raised. Statics are copied under two circumstances: When they are mutated, and when tag_allocation (see below) returns an owned allocation that is added to the memory so that the work is not done twice.

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Required methods

fn enforce_alignment(memory_extra: &Self::MemoryExtra) -> bool

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Whether memory accesses should be alignment-checked.

fn enforce_validity(ecx: &InterpCx<'mir, 'tcx, Self>) -> bool

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Whether to enforce the validity invariant

fn find_mir_or_eval_fn(
    ecx: &mut InterpCx<'mir, 'tcx, Self>,
    instance: Instance<'tcx>,
    args: &[OpTy<'tcx, Self::PointerTag>],
    ret: Option<(PlaceTy<'tcx, Self::PointerTag>, BasicBlock)>,
    unwind: Option<BasicBlock>
) -> InterpResult<'tcx, Option<&'mir Body<'tcx>>>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Entry point to all function calls.

Returns either the mir to use for the call, or None if execution should just proceed (which usually means this hook did all the work that the called function should usually have done). In the latter case, it is this hook's responsibility to advance the instruction pointer! (This is to support functions like __rust_maybe_catch_panic that neither find a MIR nor just jump to ret, but instead push their own stack frame.) Passing destand ret in the same Option proved very annoying when only one of them was used.

fn call_extra_fn(
    ecx: &mut InterpCx<'mir, 'tcx, Self>,
    fn_val: Self::ExtraFnVal,
    args: &[OpTy<'tcx, Self::PointerTag>],
    ret: Option<(PlaceTy<'tcx, Self::PointerTag>, BasicBlock)>,
    unwind: Option<BasicBlock>
) -> InterpResult<'tcx>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Execute fn_val. It is the hook's responsibility to advance the instruction pointer as appropriate.

fn call_intrinsic(
    ecx: &mut InterpCx<'mir, 'tcx, Self>,
    instance: Instance<'tcx>,
    args: &[OpTy<'tcx, Self::PointerTag>],
    ret: Option<(PlaceTy<'tcx, Self::PointerTag>, BasicBlock)>,
    unwind: Option<BasicBlock>
) -> InterpResult<'tcx>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Directly process an intrinsic without pushing a stack frame. It is the hook's responsibility to advance the instruction pointer as appropriate.

fn assert_panic(
    ecx: &mut InterpCx<'mir, 'tcx, Self>,
    msg: &AssertMessage<'tcx>,
    unwind: Option<BasicBlock>
) -> InterpResult<'tcx>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called to evaluate Assert MIR terminators that trigger a panic.

fn binary_ptr_op(
    ecx: &InterpCx<'mir, 'tcx, Self>,
    bin_op: BinOp,
    left: ImmTy<'tcx, Self::PointerTag>,
    right: ImmTy<'tcx, Self::PointerTag>
) -> InterpResult<'tcx, (Scalar<Self::PointerTag>, bool, Ty<'tcx>)>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called for all binary operations where the LHS has pointer type.

Returns a (value, overflowed) pair if the operation succeeded

fn box_alloc(
    ecx: &mut InterpCx<'mir, 'tcx, Self>,
    dest: PlaceTy<'tcx, Self::PointerTag>
) -> InterpResult<'tcx>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Heap allocations via the box keyword.

fn init_allocation_extra<'b>(
    memory_extra: &Self::MemoryExtra,
    id: AllocId,
    alloc: Cow<'b, Allocation>,
    kind: Option<MemoryKind<Self::MemoryKind>>
) -> (Cow<'b, Allocation<Self::PointerTag, Self::AllocExtra>>, Self::PointerTag)

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called to initialize the "extra" state of an allocation and make the pointers it contains (in relocations) tagged. The way we construct allocations is to always first construct it without extra and then add the extra. This keeps uniform code paths for handling both allocations created by CTFE for globals, and allocations created by Miri during evaluation.

kind is the kind of the allocation being tagged; it can be None when it's a global and GLOBAL_KIND is None.

This should avoid copying if no work has to be done! If this returns an owned allocation (because a copy had to be done to add tags or metadata), machine memory will cache the result. (This relies on AllocMap::get_or being able to add the owned allocation to the map even when the map is shared.)

Also return the "base" tag to use for this allocation: the one that is used for direct accesses to this allocation. If kind == STATIC_KIND, this tag must be consistent with tag_global_base_pointer.

fn tag_global_base_pointer(
    memory_extra: &Self::MemoryExtra,
    id: AllocId
) -> Self::PointerTag

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Return the "base" tag for the given global allocation: the one that is used for direct accesses to this static/const/fn allocation. If id is not a global allocation, this will return an unusable tag (i.e., accesses will be UB)!

Expects id to be already canonical, if needed.

fn init_frame_extra(
    ecx: &mut InterpCx<'mir, 'tcx, Self>,
    frame: Frame<'mir, 'tcx, Self::PointerTag>
) -> InterpResult<'tcx, Frame<'mir, 'tcx, Self::PointerTag, Self::FrameExtra>>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called immediately before a new stack frame gets pushed.

fn stack<'a>(
    ecx: &'a InterpCx<'mir, 'tcx, Self>
) -> &'a [Frame<'mir, 'tcx, Self::PointerTag, Self::FrameExtra>]

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Borrow the current thread's stack.

fn stack_mut<'a>(
    ecx: &'a mut InterpCx<'mir, 'tcx, Self>
) -> &'a mut Vec<Frame<'mir, 'tcx, Self::PointerTag, Self::FrameExtra>>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Mutably borrow the current thread's stack.

fn ptr_to_int(
    _mem: &Memory<'mir, 'tcx, Self>,
    _ptr: Pointer<Self::PointerTag>
) -> InterpResult<'tcx, u64>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

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Provided methods

fn abort(_ecx: &mut InterpCx<'mir, 'tcx, Self>) -> InterpResult<'tcx, !>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called to evaluate Abort MIR terminator.

fn access_local(
    _ecx: &InterpCx<'mir, 'tcx, Self>,
    frame: &Frame<'mir, 'tcx, Self::PointerTag, Self::FrameExtra>,
    local: Local
) -> InterpResult<'tcx, Operand<Self::PointerTag>>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called to read the specified local from the frame. Since reading a ZST is not actually accessing memory or locals, this is never invoked for ZST reads.

fn access_local_mut<'a>(
    ecx: &'a mut InterpCx<'mir, 'tcx, Self>,
    frame: usize,
    local: Local
) -> InterpResult<'tcx, Result<&'a mut LocalValue<Self::PointerTag>, MemPlace<Self::PointerTag>>> where
    'tcx: 'mir, 

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called to write the specified local from the frame. Since writing a ZST is not actually accessing memory or locals, this is never invoked for ZST reads.

fn before_terminator(
    _ecx: &mut InterpCx<'mir, 'tcx, Self>
) -> InterpResult<'tcx>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called before a basic block terminator is executed. You can use this to detect endlessly running programs.

fn before_access_global(
    _memory_extra: &Self::MemoryExtra,
    _alloc_id: AllocId,
    _allocation: &Allocation,
    _static_def_id: Option<DefId>,
    _is_write: bool
) -> InterpResult<'tcx>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called before a global allocation is accessed. def_id is Some if this is the "lazy" allocation of a static.

fn canonical_alloc_id(_mem: &Memory<'mir, 'tcx, Self>, id: AllocId) -> AllocId

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called for every memory access to determine the real ID of the given allocation. This provides a way for the machine to "redirect" certain allocations as it sees fit.

This is used by Miri to redirect extern statics to real allocations.

This function must be idempotent.

fn adjust_global_const(
    _ecx: &InterpCx<'mir, 'tcx, Self>,
    val: ConstValue<'tcx>
) -> InterpResult<'tcx, ConstValue<'tcx>>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called when converting a ty::Const to an operand (in eval_const_to_op).

Miri uses this callback for creating per thread allocations for thread locals. In Rust, one way of creating a thread local is by marking a static with #[thread_local]. On supported platforms this gets translated to a LLVM thread local for which LLVM automatically ensures that each thread gets its own copy. Since LLVM automatically handles thread locals, the Rust compiler just treats thread local statics as regular statics even though accessing a thread local static should be an effectful computation that depends on the current thread. The long term plan is to change MIR to make accesses to thread locals explicit (https://github.com/rust-lang/rust/issues/70685). While the issue 70685 is not fixed, our current workaround in Miri is to use this function to make per-thread copies of thread locals. Please note that we cannot make these copies in canonical_alloc_id because that is too late: for example, if one created a pointer in thread t1 to a thread local and sent it to another thread t2, resolving the access in canonical_alloc_id would result in pointer pointing to t2's thread local and not t1 as it should.

fn before_deallocation(
    _memory_extra: &mut Self::MemoryExtra,
    _id: AllocId
) -> InterpResult<'tcx>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called to notify the machine before a deallocation occurs.

fn retag(
    _ecx: &mut InterpCx<'mir, 'tcx, Self>,
    _kind: RetagKind,
    _place: PlaceTy<'tcx, Self::PointerTag>
) -> InterpResult<'tcx>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Executes a retagging operation

fn after_stack_push(_ecx: &mut InterpCx<'mir, 'tcx, Self>) -> InterpResult<'tcx>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called immediately after a stack frame got pushed and its locals got initialized.

fn after_stack_pop(
    _ecx: &mut InterpCx<'mir, 'tcx, Self>,
    _frame: Frame<'mir, 'tcx, Self::PointerTag, Self::FrameExtra>,
    _unwinding: bool
) -> InterpResult<'tcx, StackPopJump>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Called immediately after a stack frame got popped, but before jumping back to the caller.

fn int_to_ptr(
    _mem: &Memory<'mir, 'tcx, Self>,
    int: u64
) -> InterpResult<'tcx, Pointer<Self::PointerTag>>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

fn thread_local_alloc_id(
    _ecx: &mut InterpCx<'mir, 'tcx, Self>,
    did: DefId
) -> InterpResult<'tcx, AllocId>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

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Implementors

impl<'mir, 'tcx> Machine<'mir, 'tcx> for CompileTimeInterpreter<'mir, 'tcx>[src]

type PointerTag = ()

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type ExtraFnVal = !

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type MemoryKind = !

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type MemoryMap = FxHashMap<AllocId, (MemoryKind<!>, Allocation)>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type AllocExtra = ()

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type FrameExtra = ()

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type MemoryExtra = MemoryExtra

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

impl<'mir, 'tcx> Machine<'mir, 'tcx> for ConstPropMachine<'mir, 'tcx>[src]

type PointerTag = ()

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type ExtraFnVal = !

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type MemoryKind = !

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type MemoryMap = FxHashMap<AllocId, (MemoryKind<!>, Allocation)>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type AllocExtra = ()

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type FrameExtra = ()

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type MemoryExtra = ()

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

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