Enum ValueRef 

pub enum ValueRef<'a> {
    U64(u64),
    I64(i64),
    F64(f64),
    Bool(bool),
    Str(&'a str),
    Bytes(&'a [u8]),
    Json(&'a Value),
    None,
    Other(&'a Value),
}

A borrowed view of a Value (SRD 115 §6.1): what a compiled helper or closure sees for an argument it does not own. A scalar is carried by value, a string or byte string by reference into the arena or the interner, a JSON value by reference into the value table, and any other variant by reference to the Value itself. The P1 nodes build the same view from their Value inputs, so one body serves both tiers without copying a string argument to inspect it.

Variants

U64(u64)

An unsigned integer.

I64(i64)

A signed integer.

F64(f64)

A float.

Bool(bool)

A boolean.

Str(&'a str)

A string, borrowed from the arena or the interner.

Bytes(&'a [u8])

A byte string, borrowed.

Json(&'a Value)

A JSON value, by reference into the value table.

None

No value.

Other(&'a Value)

Any other variant, by reference to the value.

Implementations

impl<'a> ValueRef<'a>

pub fn port_type(&self) -> PortType

The port type of the value viewed.

pub fn display(&self) -> Cow<'a, str>

The display form, exactly as Value::to_display_string gives it; a string is borrowed rather than copied.

pub fn to_display_string(&self) -> String

The display form as an owned string.

pub fn to_json_value(&self) -> Value

The JSON projection, exactly as Value::to_json_value gives it.

Trait Implementations

impl<'a> Clone for ValueRef<'a>

fn clone(&self) -> ValueRef<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for ValueRef<'a>

impl<'a> Debug for ValueRef<'a>

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

Formats the value using the given formatter.

impl<'a> From<&'a Value> for ValueRef<'a>

fn from(v: &'a Value) -> Self

Converts to this type from the input type.