Enum Selection 

pub enum Selection<'src> {
    Field(FieldSelection<'src>),
    FragmentSpread(FragmentSpread<'src>),
    InlineFragment(InlineFragment<'src>),
}

A single selection within a selection set.

See Selection Sets in the spec.

Variants

Field(FieldSelection<'src>)

FragmentSpread(FragmentSpread<'src>)

InlineFragment(InlineFragment<'src>)

Implementations

impl<'src> Selection<'src>

pub fn directive_annotations(&self) -> &[DirectiveAnnotation<'src>]

Returns the directive annotations applied to this selection.

pub fn name(&self) -> Option<&Name<'src>>

Returns the name of this selection, or None for inline fragments (which have no name).

pub fn name_value(&self) -> Option<&str>

Returns the name of this selection as a string slice, or None for inline fragments.

Convenience accessor for self.name().value.

impl Selection<'_>

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

See AstNode::append_source().

pub fn byte_span(&self) -> ByteSpan

Returns this selection’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 selection’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 Selection<'_>

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

See AstNode::append_source().

fn byte_span(&self) -> ByteSpan

Returns this selection’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 selection’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 Selection<'src>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'src> Debug for Selection<'src>

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

Formats the value using the given formatter.

impl<'src> PartialEq for Selection<'src>

fn eq(&self, other: &Selection<'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 Selection<'src>