Enum PropValue 

pub enum PropValue {
    Null,
    Bool(bool),
    F64(f64),
    I64(i64),
    U64(u64),
    Str(String),
    Array(Vec<PropValue>),
    Object(PropMap),
}

A typed prop value. Covers all value types the widget system uses.

Mirrors JSON’s type system but without serde allocation overhead. Primitive values are stored inline (no boxing).

Wire-canonical equality across numeric variants

JSON does not distinguish integer from float; the wire collapses 42 and 42.0 to the same on-wire shape. To keep diff/apply self-consistent across the wire, equality on PropValue treats I64(42), U64(42), and F64(42.0) as equal. Without this, tree_diff produces a spurious update_props op whenever a value passes through a numeric round-trip (animations interpolate to F64 while authored props start as I64, etc.).

Variants

Null

Null.

Bool(bool)

Bool.

F64(f64)

F64.

I64(i64)

I64.

U64(u64)

U64.

Str(String)

Str.

Array(Vec<PropValue>)

Array.

Object(PropMap)

Object.

Implementations

impl PropValue

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

Borrow the value as a str.

pub fn as_f64(&self) -> Option<f64>

Return the value as an f64 when conversion is finite and exact.

pub fn as_bool(&self) -> Option<bool>

Borrow the value as a bool.

pub fn as_i64(&self) -> Option<i64>

Return the value as an i64 when conversion is integral and in range.

pub fn as_u64(&self) -> Option<u64>

Return the value as a u64 when conversion is integral and in range.

pub fn as_array(&self) -> Option<&[PropValue]>

Borrow the value as an array.

pub fn as_object(&self) -> Option<&PropMap>

Borrow the value as an object.

pub fn is_null(&self) -> bool

Returns true when the null condition holds.

Trait Implementations

impl Clone for PropValue

fn clone(&self) -> PropValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PropValue

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

Formats the value using the given formatter.

impl From<&str> for PropValue

fn from(v: &str) -> Self

Converts to this type from the input type.

impl From<PropValue> for Value

fn from(v: PropValue) -> Self

Converts to this type from the input type.

impl From<String> for PropValue

fn from(v: String) -> Self

Converts to this type from the input type.

impl From<Value> for PropValue

fn from(v: Value) -> Self

Converts to this type from the input type.

impl From<bool> for PropValue

fn from(v: bool) -> Self

Converts to this type from the input type.

impl From<f32> for PropValue

fn from(v: f32) -> Self

Converts to this type from the input type.

impl From<f64> for PropValue

fn from(v: f64) -> Self

Converts to this type from the input type.

impl From<i32> for PropValue

fn from(v: i32) -> Self

Converts to this type from the input type.

impl From<i64> for PropValue

fn from(v: i64) -> Self

Converts to this type from the input type.

impl From<u32> for PropValue

fn from(v: u32) -> Self

Converts to this type from the input type.

impl From<u64> for PropValue

fn from(v: u64) -> Self

Converts to this type from the input type.

impl PartialEq for PropValue

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.

impl PlushieType for PropValue

fn wire_decode(value: &Value) -> Option<Self>

Decode from a wire-format JSON value.

fn wire_encode(&self) -> PropValue

Encode to PropValue for wire transport / direct mode.

fn type_name() -> &'static str

Wire type name for diagnostics.

fn extract(props: &Props, key: &str) -> Option<Self>

Extract this type from a Props store by key.