Enum Form 

pub enum Form {
    State,
    Slots,
    Items,
    Arguments,
    Argument,
}

How an object is created from the value it’s emitted as.

The deserializer attaches the form to the first event of an object together with its class (see take_form). The serializer creates objects in this form (see set_form) which makes them read back as they were. Without a form, objects that are maps are created from their state, lists from their items, tuples from their arguments and other values are the argument.

Variants

State

The value is the state: cls.__new__(cls) and __setstate__ (or the attributes for maps). This is how Python pickles instances of classes (including dataclasses).

Slots

The value is the state of an object with slots: cls.__new__(cls) and the entries of the map are set as attributes.

Items

The value is the items: cls.__new__(cls) and __setitem__ for maps, extend (or append) for sequences. This is how Python pickles subclasses of dict and list.

Arguments

The value is the arguments: cls(*value) for sequences and cls.__new__(cls, **value) for maps (which requires protocol 4).

Argument

The value is the only argument: cls(value).

Trait Implementations

impl Clone for Form

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Form

impl Debug for Form

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

Formats the value using the given formatter.

impl Eq for Form

impl Hash for Form

fn hash<__H: Hasher>(&self, state: &mut __H)

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 Ord for Form

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Form

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Form

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Form