Struct Scalar 

pub struct Scalar { /* private fields */ }

One of the seven predefined value types, optionally nullable.

Implementations

impl Scalar

pub const fn new(kind: ScalarKind, nullable: bool) -> Self

Construct a new Scalar with the given ScalarKind and nullability flag (spec §2.2, §3).

pub fn named(name: &str, nullable: bool) -> Result<Self, SchemaError>

Construct from a scalar kind’s name (as it appears in schema text), mirroring the Python constructor’s runtime name check.

pub fn kind(&self) -> ScalarKind

The value kind of this scalar.

pub fn is_nullable(&self) -> bool

Whether this scalar accepts null values (the ? suffix in OSD syntax).

Trait Implementations

impl Clone for Scalar

fn clone(&self) -> Scalar

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Scalar

impl Debug for Scalar

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

Formats the value using the given formatter.

impl Display for Scalar

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

Formats the value using the given formatter.

impl Eq for Scalar

impl From<Scalar> for FieldType

fn from(s: Scalar) -> Self

Converts to this type from the input type.

impl Hash for Scalar

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 PartialEq for Scalar

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Scalar