Enum async_graphql_parser::types::ConstValue

pub enum ConstValue {
    Null,
    Number(Number),
    String(String),
    Boolean(bool),
    Enum(Name),
    List(Vec<ConstValue>),
    Object(BTreeMap<Name, ConstValue>),
}

A resolved GraphQL value, for example 1 or "Hello World!".

It can be serialized and deserialized. Enums will be converted to strings. Attempting to serialize Upload will fail, and Enum and Upload cannot be deserialized.

Reference.

Variants

Null

null.

Number(Number)

A number.

String(String)

A string.

Boolean(bool)

A boolean.

Enum(Name)

An enum. These are typically in SCREAMING_SNAKE_CASE.

List(Vec<ConstValue>)

A list of values.

Object(BTreeMap<Name, ConstValue>)

An object. This is a map of keys to values.

Implementations

impl ConstValue

#[must_use]pub fn into_value(self) -> Value

Convert this ConstValue into a Value.

pub fn into_json(self) -> Result<Value>

Attempt to convert the value into JSON. This is equivalent to the TryFrom implementation.

Errors

Fails if serialization fails (see enum docs for more info).

pub fn from_json(json: Value) -> Result<Self>

Attempt to convert JSON into a value. This is equivalent to the TryFrom implementation.

Errors

Fails if deserialization fails (see enum docs for more info).

Trait Implementations

impl Clone for ConstValue

fn clone(&self) -> ConstValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ConstValue

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

Formats the value using the given formatter.

impl Default for ConstValue

fn default() -> Self

Returns the "default value" for a type.

impl<'de> Deserialize<'de> for ConstValue

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

Deserialize this value from the given Serde deserializer.

impl Display for ConstValue

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

Formats the value using the given formatter.

impl Eq for ConstValue

impl<'a, T: Clone + Into<ConstValue>> From<&'a [T]> for ConstValue

fn from(f: &'a [T]) -> Self

Performs the conversion.

impl<'a> From<&'a str> for ConstValue

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

Performs the conversion.

impl From<()> for ConstValue

fn from((): ()) -> Self

Performs the conversion.

impl From<BTreeMap<Name, ConstValue>> for ConstValue

fn from(f: BTreeMap<Name, ConstValue>) -> Self

Performs the conversion.

impl From<ConstValue> for Value

fn from(value: ConstValue) -> Self

Performs the conversion.

impl<'a> From<Cow<'a, str>> for ConstValue

fn from(f: Cow<'a, str>) -> Self

Performs the conversion.

impl From<String> for ConstValue

fn from(value: String) -> Self

Performs the conversion.

impl<T: Into<ConstValue>> From<Vec<T>> for ConstValue

fn from(f: Vec<T>) -> Self

Performs the conversion.

impl From<bool> for ConstValue

fn from(value: bool) -> Self

Performs the conversion.

impl From<f32> for ConstValue

fn from(f: f32) -> Self

Performs the conversion.

impl From<f64> for ConstValue

fn from(f: f64) -> Self

Performs the conversion.

impl From<i16> for ConstValue

fn from(n: i16) -> Self

Performs the conversion.

impl From<i32> for ConstValue

fn from(n: i32) -> Self

Performs the conversion.

impl From<i64> for ConstValue

fn from(n: i64) -> Self

Performs the conversion.

impl From<i8> for ConstValue

fn from(n: i8) -> Self

Performs the conversion.

impl From<isize> for ConstValue

fn from(n: isize) -> Self

Performs the conversion.

impl From<u16> for ConstValue

fn from(n: u16) -> Self

Performs the conversion.

impl From<u32> for ConstValue

fn from(n: u32) -> Self

Performs the conversion.

impl From<u64> for ConstValue

fn from(n: u64) -> Self

Performs the conversion.

impl From<u8> for ConstValue

fn from(n: u8) -> Self

Performs the conversion.

impl From<usize> for ConstValue

fn from(n: usize) -> Self

Performs the conversion.

impl<T: Into<ConstValue>> FromIterator<T> for ConstValue

fn from_iter<I: IntoIterator<Item = T>>(iter: I) -> Self

Creates a value from an iterator.

impl PartialEq<ConstValue> for ConstValue

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

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

fn ne(&self, other: &ConstValue) -> bool

This method tests for !=.

impl PartialEq<ConstValue> for Value

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

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

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

This method tests for !=.

impl PartialEq<Value> for ConstValue

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

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

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

This method tests for !=.

impl Serialize for ConstValue

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

Serialize this value into the given Serde serializer.

impl StructuralEq for ConstValue

impl StructuralPartialEq for ConstValue

impl TryFrom<ConstValue> for Value

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: ConstValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for ConstValue

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Value) -> Result<Self, Self::Error>

Performs the conversion.