Enum FromStringHint 

#[non_exhaustive]
pub enum FromStringHint {
    None,
    Number,
    Bool,
    Datetime,
}

Per-field opt-in for parsing JSON strings into non-string column types. Mirrors the value space of FIELD_META_FROM_STRING.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

Number

Bool

Datetime

Implementations

impl FromStringHint

pub fn from_metadata(value: &str) -> Self

Trait Implementations

impl Clone for FromStringHint

fn clone(&self) -> FromStringHint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FromStringHint

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

Formats the value using the given formatter.

impl Default for FromStringHint

fn default() -> FromStringHint

Returns the “default value” for a type.

impl PartialEq for FromStringHint

fn eq(&self, other: &FromStringHint) -> 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 Copy for FromStringHint

impl Eq for FromStringHint

impl StructuralPartialEq for FromStringHint