struct ValidityVisitor<'rt, 'mir, 'tcx, M: Machine<'mir, 'tcx>> {
    path: Vec<PathElem>,
    ref_tracking: Option<&'rt mut RefTracking<MPlaceTy<'tcx, M::Provenance>, Vec<PathElem>>>,
    ctfe_mode: Option<CtfeValidationMode>,
    ecx: &'rt InterpCx<'mir, 'tcx, M>,
}

Fields

path: Vec<PathElem>

The path may be pushed to, but the part that is present when a function starts must not be changed! visit_fields and visit_array rely on this stack discipline.

ref_tracking: Option<&'rt mut RefTracking<MPlaceTy<'tcx, M::Provenance>, Vec<PathElem>>>ctfe_mode: Option<CtfeValidationMode>

None indicates this is not validating for CTFE (but for runtime).

ecx: &'rt InterpCx<'mir, 'tcx, M>

Implementations

Check a reference or Box.

Check if this is a value of primitive type, and if yes check the validity of the value at that type. Return true if the type is indeed primitive.

Trait Implementations

The visitor must have an InterpCx in it.
read_discriminant can be hooked for better error messages.
Called each time we recurse down to a field of a “product-like” aggregate (structs, tuples, arrays and the like, but not enums), passing in old (outer) and new (inner) value. This gives the visitor the chance to track the stack of nested fields that we are descending through. Read more
Called when recursing into an enum variant. This gives the visitor the chance to track the stack of nested fields that we are descending through. Read more
Visits the given value as a union. No automatic recursion can happen here.
Visits the given value as the pointer of a Box. There is nothing to recurse into. The type of v will be a raw pointer, but this is a field of Box<T> and the pointee type is the actual T. Read more
Visits the given value, dispatching as appropriate to more specialized visitors.
Visits this value as an aggregate, you are getting an iterator yielding all the fields (still in an InterpResult, you have to do error handling yourself). Recurses into the fields. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.

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: 48 bytes