Struct VariableReference 

pub struct VariableReference<'src> {
    pub name: Name<'src>,
    pub span: ByteSpan,
    pub syntax: Option<Box<VariableReferenceSyntax<'src>>>,
}

A variable reference in a GraphQL value position (e.g., $id).

See the Variables section of the spec.

Fields

name: Name<'src>

span: ByteSpan

syntax: Option<Box<VariableReferenceSyntax<'src>>>

Implementations

impl<'src> VariableReference<'src>

pub fn name_value(&self) -> &str

Returns the name of this variable reference as a string slice.

Convenience accessor for self.name.value.

impl VariableReference<'_>

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

See AstNode::append_source().

pub fn byte_span(&self) -> ByteSpan

Returns this variable reference’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 variable reference’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 VariableReference<'_>

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

See AstNode::append_source().

fn byte_span(&self) -> ByteSpan

Returns this variable reference’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 variable reference’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 VariableReference<'src>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'src> Debug for VariableReference<'src>

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

Formats the value using the given formatter.

impl<'src> PartialEq for VariableReference<'src>

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