Trait Initialize

pub trait Initialize: Sized {
    // Required method
    unsafe fn initial() -> Option<Self>;
}

Trait that provides a GC-safe default value for the given type, if one exists.

Required Methods

unsafe fn initial() -> Option<Self>

Create a default value. If there is no meaningful default possible, returns None. SAFETY: The default must not be a value that can be meaningfully garbage collected.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Initialize for *mut BigInt

unsafe fn initial() -> Option<*mut BigInt>

impl Initialize for *mut JSFunction

unsafe fn initial() -> Option<*mut JSFunction>

impl Initialize for *mut JSObject

unsafe fn initial() -> Option<*mut JSObject>

impl Initialize for *mut JSScript

unsafe fn initial() -> Option<*mut JSScript>

impl Initialize for *mut JSString

unsafe fn initial() -> Option<*mut JSString>

impl Initialize for *mut Symbol

unsafe fn initial() -> Option<*mut Symbol>

impl<T> Initialize for Option<T>

unsafe fn initial() -> Option<Option<T>>

Implementors

impl Initialize for PropertyDescriptor

impl Initialize for PropertyKey

impl Initialize for Value

impl<const N: usize> Initialize for ValueArray<N>

impl Initialize for Slottable