Enum rustc_middle::mir::interpret::error::UnsupportedOpInfo[][src]

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

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

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

Formats the value using the given formatter. 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

Performs the conversion.

Performs the conversion.

Converts the given value to a String. Read more

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: 32 bytes

Size for each variant:

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