Enum DartValue 

#[repr(C, u8)]
pub enum DartValue {
    None,
    Ptr(NonNull<c_void>),
    Handle(NonNull<Dart_Handle>),
    String(NonNull<c_char>, MemoryOwner),
    Int(i64),
    Float(f64),
    Bool(bool),
}

Type-erased value that can be transferred via FFI boundaries to/from Dart.

Variants

None

No value. It can mean (), void or Option::None basing on the contexts.

Ptr(NonNull<c_void>)

Pointer to a Boxed Rust object.

Handle(NonNull<Dart_Handle>)

Pointer to a Dart_Handle of some Dart object.

String(NonNull<c_char>, MemoryOwner)

Native string.

Int(i64)

Integer value.

This can also be used to transfer boolean values and C-like enums.

Float(f64)

Float value.

Bool(bool)

Boolean value.

Trait Implementations

impl Debug for DartValue

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

Formats the value using the given formatter.

impl Drop for DartValue

fn drop(&mut self)

Executes the destructor for this type.

impl From<()> for DartValue

fn from((): ()) -> Self

Converts to this type from the input type.

impl From<*mut _Dart_Handle> for DartValue

fn from(handle: Dart_Handle) -> Self

Converts to this type from the input type.

impl From<DartError> for DartValue

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<MediaDirection> for DartValue

fn from(val: MediaDirection) -> Self

Converts to this type from the input type.

impl From<NonNull<*mut _Dart_Handle>> for DartValue

fn from(handle: NonNull<*mut _Dart_Handle>) -> Self

Converts to this type from the input type.

impl From<Option<*mut _Dart_Handle>> for DartValue

fn from(val: Option<Dart_Handle>) -> Self

Converts to this type from the input type.

impl From<Option<DartError>> for DartValue

fn from(val: Option<Error>) -> Self

Converts to this type from the input type.

impl From<Option<NonNull<*mut _Dart_Handle>>> for DartValue

fn from(val: Option<NonNull<Dart_Handle>>) -> Self

Converts to this type from the input type.

impl From<Option<String>> for DartValue

fn from(val: Option<String>) -> Self

Converts to this type from the input type.

impl<T: ForeignClass> From<Option<T>> for DartValue

fn from(val: Option<T>) -> Self

Converts to this type from the input type.

impl From<Option<i64>> for DartValue

fn from(val: Option<i64>) -> Self

Converts to this type from the input type.

impl From<String> for DartValue

fn from(string: String) -> Self

Converts to this type from the input type.

impl<T: ForeignClass> From<T> for DartValue

fn from(val: T) -> Self

Converts to this type from the input type.

impl From<bool> for DartValue

fn from(val: bool) -> Self

Converts to this type from the input type.

impl From<f32> for DartValue

fn from(val: f32) -> Self

Converts to this type from the input type.

impl From<f64> for DartValue

fn from(val: f64) -> Self

Converts to this type from the input type.

impl From<i16> for DartValue

fn from(val: i16) -> Self

Converts to this type from the input type.

impl From<i32> for DartValue

fn from(val: i32) -> Self

Converts to this type from the input type.

impl From<i64> for DartValue

fn from(val: i64) -> Self

Converts to this type from the input type.

impl From<i8> for DartValue

fn from(val: i8) -> Self

Converts to this type from the input type.

impl From<u16> for DartValue

fn from(val: u16) -> Self

Converts to this type from the input type.

impl From<u32> for DartValue

fn from(val: u32) -> Self

Converts to this type from the input type.

impl From<u8> for DartValue

fn from(val: u8) -> Self

Converts to this type from the input type.