Struct async_graphql::Lookahead[][src]

pub struct Lookahead<'a> { /* fields omitted */ }
Expand description

A selection performed by a query.

Implementations

Get the field of the selection set with the specified name. This will ignore aliases.

For example, calling .field("a") on { a { b } } will return a lookahead that represents { b }.

Returns true if field exists otherwise return false.

Trait Implementations

Performs the conversion.

Convert a slice of SelectionFields to a Lookahead. Assumes all SelectionFields are from the same query and thus have the same fragments.

Fails if either no SelectionFields were provided.

The type returned in the event of a conversion error.

Performs the conversion.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Attaches the provided Context to this type, returning a WithContext wrapper. Read more

Attaches the current Context to this type, returning a WithContext wrapper. Read more

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Performs the conversion.

Should always be Self

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more