Trait dbgen::value::TryFromValue

pub trait TryFromValue<'s>: Sized {
    const NAME: &'static str;

    fn try_from_value(value: &'s Value) -> Option<Self>;
}

Types which can be extracted out of a Value.

Required Associated Constants

const NAME: &'static str

The name of the type, used when an error happens.

Required Methods

fn try_from_value(value: &'s Value) -> Option<Self>

Converts a Value into the required type.

Implementations on Foreign Types

impl<'s> TryFromValue<'s> for u8

const NAME: &'static str = "8-bit unsigned integer"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for u16

const NAME: &'static str = "16-bit unsigned integer"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for u32

const NAME: &'static str = "32-bit unsigned integer"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for u64

const NAME: &'static str = "64-bit unsigned integer"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for usize

const NAME: &'static str = "unsigned integer"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for i8

const NAME: &'static str = "8-bit signed integer"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for i16

const NAME: &'static str = "16-bit signed integer"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for i32

const NAME: &'static str = "32-bit signed integer"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for i64

const NAME: &'static str = "64-bit signed integer"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for isize

const NAME: &'static str = "signed integer"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for f32

const NAME: &'static str = "floating point number"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for f64

const NAME: &'static str = "floating point number"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for &'s str

const NAME: &'static str = "string"

fn try_from_value(value: &'s Value) -> Option<Self>

impl<'s> TryFromValue<'s> for Option<bool>

const NAME: &'static str = "nullable boolean"

fn try_from_value(value: &'s Value) -> Option<Self>

Implementors

impl<'s> TryFromValue<'s> for &'s Value

const NAME: &'static str = "value"

impl<'s> TryFromValue<'s> for Number

const NAME: &'static str = "number"