Enum rustc_middle::mir::interpret::error::UnsupportedOpInfo

pub enum UnsupportedOpInfo {
    Unsupported(String),
    ReadPointerAsBytes,
    PartialPointerOverwrite(Pointer<AllocId>),
    ThreadLocalStatic(DefId),
    ReadExternStatic(DefId),
}

Error information for when the program did something that might (or might not) be correct to do according to the Rust spec, but due to limitations in the interpreter, the operation could not be carried out. These limitations can differ between CTFE and the Miri engine, e.g., CTFE does not support dereferencing pointers at integral addresses.

Variants

Unsupported(String)

Tuple Fields

0: String

Free-form case. Only for errors that are never caught!

ReadPointerAsBytes

Encountered a pointer where we needed raw bytes.

PartialPointerOverwrite(Pointer<AllocId>)

Tuple Fields

0: Pointer<AllocId>

Overwriting parts of a pointer; the resulting state cannot be represented in our Allocation data structure.

ThreadLocalStatic(DefId)

Tuple Fields

0: DefId

Accessing thread local statics

ReadExternStatic(DefId)

Tuple Fields

0: DefId

Accessing an unsupported extern static.

Trait Implementations

impl Display for UnsupportedOpInfo

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

Formats the value using the given formatter.

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: 32 bytes

Size for each variant:

• Unsupported: 28 bytes
• ReadPointerAsBytes: 0 bytes
• PartialPointerOverwrite: 20 bytes
• ThreadLocalStatic: 8 bytes
• ReadExternStatic: 8 bytes