Enum Constant

pub enum Constant {
    Null,
    String(LitStr),
    Integer(String),
    Float(String),
    Boolean(bool),
    Uuid(Uuid),
    Hex(Vec<u8>),
    Blob(Vec<u8>),
}

Variants

Null

String(LitStr)

Integer(String)

Float(String)

Boolean(bool)

Uuid(Uuid)

Hex(Vec<u8>)

Blob(Vec<u8>)

Implementations

impl Constant

pub fn string(s: &str) -> Self

pub fn integer(s: &str) -> Result<Self>

pub fn float(s: &str) -> Result<Self>

pub fn bool(b: bool) -> Self

pub fn uuid(u: Uuid) -> Self

pub fn hex(s: &str) -> Result<Self>

pub fn blob(b: Vec<u8>) -> Self

Trait Implementations

impl Clone for Constant

fn clone(&self) -> Constant

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> CustomToTokens<'a> for Constant

fn to_tokens(&'a self, tokens: &mut TokenStream)

impl Debug for Constant

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

Formats the value using the given formatter.

impl Display for Constant

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

Formats the value using the given formatter.

impl From<Constant> for StatementOptValue

fn from(original: Constant) -> StatementOptValue

Converts to this type from the input type.

impl From<Constant> for Term

fn from(original: Constant) -> Term

Converts to this type from the input type.

impl From<LitStr> for Constant

fn from(s: LitStr) -> Self

Converts to this type from the input type.

impl From<Uuid> for Constant

fn from(u: Uuid) -> Self

Converts to this type from the input type.

impl From<bool> for Constant

fn from(b: bool) -> Self

Converts to this type from the input type.

impl From<f32> for Constant

fn from(f: f32) -> Self

Converts to this type from the input type.

impl From<f64> for Constant

fn from(f: f64) -> Self

Converts to this type from the input type.

impl From<i32> for Constant

fn from(i: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Constant

fn from(i: i64) -> Self

Converts to this type from the input type.

impl FromStr for Constant

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self>

Parses a string s to return a value of this type.

impl Hash for Constant

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 Ord for Constant

fn cmp(&self, other: &Constant) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl Parse for Constant

type Output = Constant

fn parse(s: &mut StatementStream<'_>) -> Result<Self::Output>

impl PartialEq for Constant

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

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

const 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 PartialOrd for Constant

fn partial_cmp(&self, other: &Constant) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl ToTokens for Constant

fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

where Self: Sized,

Convert self directly into a TokenStream object.

impl TryInto<LitStr> for Constant

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<LitStr>

Performs the conversion.

impl TryInto<Uuid> for Constant

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Uuid>

Performs the conversion.

impl TryInto<bool> for Constant

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<bool>

Performs the conversion.

impl TryInto<f32> for Constant

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<f32>

Performs the conversion.

impl TryInto<f64> for Constant

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<f64>

Performs the conversion.

impl TryInto<i32> for Constant

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<i32>

Performs the conversion.

impl TryInto<i64> for Constant

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<i64>

Performs the conversion.

impl Eq for Constant

impl StructuralPartialEq for Constant