Struct tidb_query_datatype::codec::mysql::enums::EnumRef

pub struct EnumRef<'a> {
    name: &'a [u8],
    value: &'a u64,
}

Fields

name: &'a [u8]

value: &'a u64

Implementations

impl<'a> EnumRef<'a>

pub fn new(name: &'a [u8], value: &'a u64) -> Self

pub fn to_owned(self) -> Enum

pub fn is_empty(&self) -> bool

pub fn value(&self) -> u64

pub fn value_ref(&self) -> &'a u64

pub fn name(&self) -> &'a [u8]

pub fn as_str(&self) -> Result<&str>

pub fn len(&self) -> usize

Trait Implementations

impl<'a> AsMySQLBool for EnumRef<'a>

fn as_mysql_bool(&self, _context: &mut EvalContext) -> Result<bool>

Evaluates into a MySQL logic value.

impl<'a> ChunkRef<'a, EnumRef<'a>> for &'a ChunkedVecEnum

fn get_option_ref(self, idx: usize) -> Option<EnumRef<'a>>

fn get_bit_vec(self) -> &'a BitVec

fn phantom_data(self) -> Option<EnumRef<'a>>

impl<'a> Clone for EnumRef<'a>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> ConvertTo<Vec<u8, Global>> for EnumRef<'a>

fn convert(&self, _: &mut EvalContext) -> Result<Bytes>

Converts the given value to T value

impl<'a> Copy for EnumRef<'a>

impl<'a> Debug for EnumRef<'a>

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

Formats the value using the given formatter.

impl<'a> Display for EnumRef<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for EnumRef<'a>

impl<'a> EvaluableRef<'a> for EnumRef<'a>

const EVAL_TYPE: EvalType

type EvaluableType = Enum

type ChunkedType = &'a ChunkedVecEnum

fn borrow_scalar_value(v: &'a ScalarValue) -> Option<Self>

Borrows this concrete type from a ScalarValue in the same type; panics if the varient mismatches.

fn borrow_scalar_value_ref(v: ScalarValueRef<'a>) -> Option<Self>

Borrows this concrete type from a ScalarValueRef in the same type; panics if the varient mismatches.

fn borrow_vector_value(v: &VectorValue) -> &ChunkedVecEnum

Borrows a slice of this concrete type from a VectorValue in the same type; panics if the varient mismatches.

fn into_owned_value(self) -> Self::EvaluableType

Convert this reference to owned type

fn from_owned_value(value: &'a Self::EvaluableType) -> Self

impl<'a> Ord for EnumRef<'a>

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

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl<'a> PartialEq<EnumRef<'a>> for EnumRef<'a>

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'a> PartialOrd<EnumRef<'a>> for EnumRef<'a>

fn partial_cmp(&self, right: &Self) -> Option<Ordering>

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

#[must_use]pub fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]pub fn le(&self, other: &Rhs) -> bool

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

#[must_use]pub fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]pub fn ge(&self, other: &Rhs) -> bool

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

impl<'a> ToInt for EnumRef<'a>

fn to_int(&self, _ctx: &mut EvalContext, _tp: FieldTypeTp) -> Result<i64>

Converts the given value to an i64

fn to_uint(&self, _ctx: &mut EvalContext, _tp: FieldTypeTp) -> Result<u64>

Converts the given value to an u64

impl<'a> ToString for EnumRef<'a>

fn to_string(&self) -> String

Converts the given value to a String.

impl<'a> UnsafeRefInto<EnumRef<'static>> for EnumRef<'a>

unsafe fn unsafe_into(self) -> EnumRef<'static>

Safety