Struct FieldModifiers 

#[non_exhaustive]
pub struct FieldModifiers {}

Additional optional information about a field.

This data structure may grow to accommodate future Rust language changes, including the following in-progress RFCs:

• RFC 3323 “Restrictions”, such as mut(crate)
• RFC 3458 “Unsafe fields”

Implementations

impl FieldModifiers

pub fn require_empty(&self) -> Result<()>

Trait Implementations

impl Clone for FieldModifiers

Available on crate features derive or full only.

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FieldModifiers

Available on crate features derive or full only.

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

Formats the value using the given formatter.

impl Default for FieldModifiers

fn default() -> Self

Returns the “default value” for a type.

impl Eq for FieldModifiers

Available on crate features derive or full only.

impl Hash for FieldModifiers

Available on crate features derive or full only.

fn hash<H>(&self, _state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FieldModifiers

Available on crate features derive or full only.

fn eq(&self, _other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.