Trait FromMetadataValue 

pub trait FromMetadataValue: Sized {
    // Required method
    fn from_metadata_value(value: &Value) -> ValueResult<Self>;
}

Converts metadata backing Value instances into supported Rust types.

This trait is implemented for the same concrete output types accepted by Value::to. It keeps metadata accessors generic without depending on qubit-value internal conversion traits.

Required Methods

fn from_metadata_value(value: &Value) -> ValueResult<Self>

Converts value into Self.

Errors

Returns a qubit_value::ValueError when the stored value is absent, unsupported, or cannot be converted to Self.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl FromMetadataValue for Value

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for bool

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for char

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for f32

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for f64

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for i8

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for i16

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for i32

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for i64

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for i128

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for isize

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for u8

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for u16

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for u32

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for u64

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for u128

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for usize

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for String

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for Duration

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for HashMap<String, String>

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for BigDecimal

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for DateTime<Utc>

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for NaiveDate

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for NaiveDateTime

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for NaiveTime

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for BigInt

fn from_metadata_value(value: &Value) -> ValueResult<Self>

impl FromMetadataValue for Url

fn from_metadata_value(value: &Value) -> ValueResult<Self>

Implementors