Derive Macro bytemuck::CheckedBitPattern

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Available on crate feature derive only.
Expand description

Derive the CheckedBitPattern trait for a struct or enum.

The macro ensures that the type follows all the the safety requirements for the CheckedBitPattern trait and derives the required Bits type definition and is_valid_bit_pattern method for the type automatically.

The following constraints need to be satisfied for the macro to succeed:

If applied to a struct:

  • All fields must implement CheckedBitPattern
  • The struct must be #[repr(C)] or #[repr(transparent)]
  • The struct must contain no generic parameters

If applied to an enum:

  • The enum must be explicit #[repr(Int)]
  • All fields in variants must implement CheckedBitPattern
  • The enum must contain no generic parameters