Struct Ref

pub struct Ref(/* private fields */);

A reference to a DynamoDB value stored in expression attribute values. Automatically prefixed with :.

use dynamodb_expression::value::Ref;

let value = Ref::new("expression_value");
assert_eq!(":expression_value", value.to_string())

Implementations

impl Ref

pub fn new<T>(value_ref: T) -> Self

where T: Into<String>,

Trait Implementations

impl Clone for Ref

fn clone(&self) -> Ref

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Ref

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

Formats the value using the given formatter.

impl Display for Ref

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

Formats the value using the given formatter.

impl From<&&str> for Ref

fn from(value: &&str) -> Self

Converts to this type from the input type.

impl From<&String> for Ref

fn from(value: &String) -> Self

Converts to this type from the input type.

impl From<&str> for Ref

fn from(value: &str) -> Self

Converts to this type from the input type.

impl From<Ref> for AddValue

fn from(value: Ref) -> Self

Converts to this type from the input type.

impl From<Ref> for String

fn from(value: Ref) -> Self

Converts to this type from the input type.

impl From<Ref> for StringOrRef

fn from(value: Ref) -> Self

Converts to this type from the input type.

impl From<String> for Ref

fn from(value: String) -> Self

Converts to this type from the input type.

impl Hash for Ref

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 PartialEq for Ref

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

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

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 Eq for Ref

impl StructuralPartialEq for Ref