Trait cynic::QueryFragment

pub trait QueryFragment: Sized {
    type SchemaType;
    type VariablesFields: QueryVariablesFields;

    const TYPE: Option<&'static str> = None;

    // Required method
    fn query(
        builder: SelectionBuilder<'_, Self::SchemaType, Self::VariablesFields>
    );

    // Provided method
    fn name() -> Option<Cow<'static, str>> { ... }
}

A trait that marks a type as part of a GraphQL query.

This will usually be derived, but can be manually implemented if required.

Required Associated Types

type SchemaType

The type in a schema that this QueryFragment represents

type VariablesFields: QueryVariablesFields

The variables that are required to execute this QueryFragment

Provided Associated Constants

const TYPE: Option<&'static str> = None

The name of the type in the GraphQL schema

Required Methods

fn query(builder: SelectionBuilder<'_, Self::SchemaType, Self::VariablesFields>)

Adds this fragment to the query being built by builder

Provided Methods

fn name() -> Option<Cow<'static, str>>

The name of this fragment, useful for operations, maybe fragments if we ever support them…

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl QueryFragment for bool

type SchemaType = bool

type VariablesFields = ()

fn query( _builder: SelectionBuilder<'_, Self::SchemaType, Self::VariablesFields> )

impl QueryFragment for String

type SchemaType = String

type VariablesFields = ()

fn query( _builder: SelectionBuilder<'_, Self::SchemaType, Self::VariablesFields> )

impl<T> QueryFragment for Option<T>

where T: QueryFragment,

type SchemaType = Option<<T as QueryFragment>::SchemaType>

type VariablesFields = <T as QueryFragment>::VariablesFields

fn query(builder: SelectionBuilder<'_, Self::SchemaType, Self::VariablesFields>)

impl<T> QueryFragment for Box<T>

where T: QueryFragment,

type SchemaType = <T as QueryFragment>::SchemaType

type VariablesFields = <T as QueryFragment>::VariablesFields

const TYPE: Option<&'static str> = T::TYPE

fn query(builder: SelectionBuilder<'_, Self::SchemaType, Self::VariablesFields>)

impl<T> QueryFragment for Rc<T>

where T: QueryFragment,

type SchemaType = <T as QueryFragment>::SchemaType

type VariablesFields = <T as QueryFragment>::VariablesFields

const TYPE: Option<&'static str> = T::TYPE

fn query(builder: SelectionBuilder<'_, Self::SchemaType, Self::VariablesFields>)

impl<T> QueryFragment for Arc<T>

where T: QueryFragment,

type SchemaType = <T as QueryFragment>::SchemaType

type VariablesFields = <T as QueryFragment>::VariablesFields

const TYPE: Option<&'static str> = T::TYPE

fn query(builder: SelectionBuilder<'_, Self::SchemaType, Self::VariablesFields>)

impl<T> QueryFragment for Vec<T>

where T: QueryFragment,

type SchemaType = Vec<<T as QueryFragment>::SchemaType>

type VariablesFields = <T as QueryFragment>::VariablesFields

fn query(builder: SelectionBuilder<'_, Self::SchemaType, Self::VariablesFields>)

Implementors