Enum ValueRef 

#[non_exhaustive]
pub enum ValueRef<'a> {
    Unset(DataType),
    Bool(bool),
    Char(char),
    Int8(i8),
    Int16(i16),
    Int32(i32),
    Int64(i64),
    Int128(i128),
    UInt8(u8),
    UInt16(u16),
    UInt32(u32),
    UInt64(u64),
    UInt128(u128),
    Float32(f32),
    Float64(f64),
    BigInteger(&'a BigInt),
    BigDecimal(&'a BigDecimal),
    String(&'a str),
    Date(&'a NaiveDate),
    Time(&'a NaiveTime),
    DateTime(&'a NaiveDateTime),
    Instant(&'a DateTime<Utc>),
    Duration(&'a Duration),
    Url(&'a Url),
    StringMap(&'a HashMap<String, String>),
    Json(&'a Value),
}

Borrowed semantic view preserving source types without owning payloads.

The lifetime is that of the source storage; copying this view does not clone strings, maps, JSON, or other rich payloads.

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.

Unset(DataType)

Unset storage retaining its declared type.

Tuple Fields

0: DataType

Declared source type.

Bool(bool)

Boolean value

Tuple Fields

0: bool

Borrowed or copied source payload.

Char(char)

Character value

Tuple Fields

0: char

Borrowed or copied source payload.

Int8(i8)

8-bit signed integer

Tuple Fields

0: i8

Borrowed or copied source payload.

Int16(i16)

16-bit signed integer

Tuple Fields

0: i16

Borrowed or copied source payload.

Int32(i32)

32-bit signed integer

Tuple Fields

0: i32

Borrowed or copied source payload.

Int64(i64)

64-bit signed integer

Tuple Fields

0: i64

Borrowed or copied source payload.

Int128(i128)

128-bit signed integer

Tuple Fields

0: i128

Borrowed or copied source payload.

UInt8(u8)

8-bit unsigned integer

Tuple Fields

0: u8

Borrowed or copied source payload.

UInt16(u16)

16-bit unsigned integer

Tuple Fields

0: u16

Borrowed or copied source payload.

UInt32(u32)

32-bit unsigned integer

Tuple Fields

0: u32

Borrowed or copied source payload.

UInt64(u64)

64-bit unsigned integer

Tuple Fields

0: u64

Borrowed or copied source payload.

UInt128(u128)

128-bit unsigned integer

Tuple Fields

0: u128

Borrowed or copied source payload.

Float32(f32)

32-bit floating-point number

Tuple Fields

0: f32

Borrowed or copied source payload.

Float64(f64)

64-bit floating-point number

Tuple Fields

0: f64

Borrowed or copied source payload.

BigInteger(&'a BigInt)

Arbitrary-precision integer

Tuple Fields

0: &'a BigInt

Borrowed or copied source payload.

BigDecimal(&'a BigDecimal)

Arbitrary-precision decimal

Tuple Fields

0: &'a BigDecimal

Borrowed or copied source payload.

String(&'a str)

String value

Tuple Fields

0: &'a str

Borrowed or copied source payload.

Date(&'a NaiveDate)

Calendar date

Tuple Fields

0: &'a NaiveDate

Borrowed or copied source payload.

Time(&'a NaiveTime)

Time of day

Tuple Fields

0: &'a NaiveTime

Borrowed or copied source payload.

DateTime(&'a NaiveDateTime)

Date and time

Tuple Fields

0: &'a NaiveDateTime

Borrowed or copied source payload.

Instant(&'a DateTime<Utc>)

UTC instant

Tuple Fields

0: &'a DateTime<Utc>

Borrowed or copied source payload.

Duration(&'a Duration)

Duration

Tuple Fields

0: &'a Duration

Borrowed or copied source payload.

Url(&'a Url)

URL

Tuple Fields

0: &'a Url

Borrowed or copied source payload.

StringMap(&'a HashMap<String, String>)

Map with string keys and values

Tuple Fields

0: &'a HashMap<String, String>

Borrowed or copied source payload.

Json(&'a Value)

JSON value

Tuple Fields

0: &'a Value

Borrowed or copied source payload.

Trait Implementations

impl<'a> Clone for ValueRef<'a>

fn clone(&self) -> ValueRef<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for ValueRef<'a>

impl<'a> Debug for ValueRef<'a>

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

Formats the value using the given formatter.

impl<'a> From<ValueRef<'a>> for DataConverter<'a>

fn from(value: ValueRef<'a>) -> Self

Borrows rich view payloads and copies primitive conversion sources.