Struct FloatValue 

pub struct FloatValue<'src> {
    pub span: ByteSpan,
    pub syntax: Option<Box<FloatValueSyntax<'src>>>,
    pub value: f64,
}

A GraphQL float value.

Per the Float Value section of the spec, Float is a double-precision floating-point value (IEEE 754). On overflow the parser emits a diagnostic and stores f64::INFINITY / f64::NEG_INFINITY.

Fields

span: ByteSpan

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

value: f64

The parsed f64 value. On overflow the parser emits a diagnostic and stores f64::INFINITY / f64::NEG_INFINITY.

Implementations

impl FloatValue<'_>

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

See AstNode::append_source().

pub fn byte_span(&self) -> ByteSpan

Returns this float value’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 float value’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 FloatValue<'_>

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

See AstNode::append_source().

fn byte_span(&self) -> ByteSpan

Returns this float value’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 float value’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 FloatValue<'src>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'src> Debug for FloatValue<'src>

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

Formats the value using the given formatter.

impl PartialEq for FloatValue<'_>

fn eq(&self, other: &Self) -> 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.