Struct Variables 

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

Represents a set of variables that can be used in a query.

Implementations

impl Variables

pub fn new() -> Variables

Create a new empty variables map.

pub fn is_empty(&self) -> bool

Check if the variables map is empty.

pub fn len(&self) -> usize

Get the number of variables in the map.

pub fn iter(&self) -> Iter<'_, String, Value>

Get an iterator over the variables in the map.

pub fn get(&self, key: &str) -> Option<&Value>

Get a variable from the map.

pub fn insert(&mut self, key: impl Into<String>, value: impl SurrealValue)

Insert a new variable into the map.

pub fn remove(&mut self, key: &str)

Remove a variable from the map.

pub fn extend(&mut self, other: Variables)

Extend the variables map with another variables map.

Trait Implementations

impl Clone for Variables

fn clone(&self) -> Variables

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Variables

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

Formats the value using the given formatter.

impl Default for Variables

fn default() -> Variables

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Variables

fn deserialize<__D>( __deserializer: __D, ) -> Result<Variables, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<BTreeMap<String, String>> for Variables

fn from(map: BTreeMap<String, String>) -> Variables

Converts to this type from the input type.

impl From<BTreeMap<String, Value>> for Variables

fn from(map: BTreeMap<String, Value>) -> Variables

Converts to this type from the input type.

impl From<HashMap<String, String>> for Variables

fn from(map: HashMap<String, String>) -> Variables

Converts to this type from the input type.

impl From<Object> for Variables

fn from(obj: Object) -> Variables

Converts to this type from the input type.

impl From<Variables> for Object

fn from(vars: Variables) -> Object

Converts to this type from the input type.

impl FromIterator<(String, Value)> for Variables

fn from_iter<T>(iter: T) -> Variables

where T: IntoIterator<Item = (String, Value)>,

Creates a value from an iterator.

impl IntoIterator for Variables

type Item = (String, Value)

The type of the elements being iterated over.

type IntoIter = IntoIter<String, Value>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <Variables as IntoIterator>::IntoIter

Creates an iterator from a value.

impl PartialEq for Variables

fn eq(&self, other: &Variables) -> 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 Serialize for Variables

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl SurrealValue for Variables

fn into_value(self) -> Value

Converts this type into a SurrealDB value

fn from_value(value: Value) -> Result<Variables, Error>

Attempts to convert a SurrealDB value into this type

fn is_value(value: &Value) -> bool

Checks if the given value can be converted to this type

fn kind_of() -> Kind

Returns the kind that represents this type

impl Eq for Variables

impl StructuralPartialEq for Variables