Enum TypeAnnotation 

pub enum TypeAnnotation<'src> {
    List(ListTypeAnnotation<'src>),
    Named(NamedTypeAnnotation<'src>),
}

A GraphQL type reference (type annotation).

Represents NamedType and ListType from the spec grammar. The spec’s NonNullType is not a separate variant here — instead, nullability is expressed via the Nullability field on each variant’s inner struct.

Variants

List(ListTypeAnnotation<'src>)

Named(NamedTypeAnnotation<'src>)

Implementations

impl<'src> TypeAnnotation<'src>

pub fn nullable(&self) -> bool

Returns true if this type annotation is nullable (i.e. does not have a trailing !).

impl TypeAnnotation<'_>

pub fn append_source(&self, sink: &mut String, source: Option<&str>)

See AstNode::append_source().

pub fn byte_span(&self) -> ByteSpan

Returns this type annotation’s byte-offset span within the source text.

The returned ByteSpan can be resolved to line/column positions via source_span() or ByteSpan::resolve().

pub fn source_span(&self, source_map: &SourceMap<'_>) -> Option<SourceSpan>

Resolves this type annotation’s position to line/column coordinates using the given SourceMap.

Returns None if the byte offsets cannot be resolved (e.g. the span was synthetically constructed without valid position data).

Trait Implementations

impl AstNode for TypeAnnotation<'_>

fn append_source(&self, sink: &mut String, source: Option<&str>)

See AstNode::append_source().

fn byte_span(&self) -> ByteSpan

Returns this type annotation’s byte-offset span within the source text.

The returned ByteSpan can be resolved to line/column positions via source_span() or ByteSpan::resolve().

fn source_span(&self, source_map: &SourceMap<'_>) -> Option<SourceSpan>

Resolves this type annotation’s position to line/column coordinates using the given SourceMap.

Returns None if the byte offsets cannot be resolved (e.g. the span was synthetically constructed without valid position data).

fn to_source(&self, source: Option<&str>) -> String

Return this node as a source string.

impl<'src> Clone for TypeAnnotation<'src>

fn clone(&self) -> TypeAnnotation<'src>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'src> Debug for TypeAnnotation<'src>

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

Formats the value using the given formatter.

impl<'src> PartialEq for TypeAnnotation<'src>

fn eq(&self, other: &TypeAnnotation<'src>) -> 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<'src> StructuralPartialEq for TypeAnnotation<'src>