Struct gluon_vm::api::OpaqueValue

pub struct OpaqueValue<T, V>(_, _) where T: Deref<Target=Thread>;

Type which represents an array in gluon Type implementing both Pushable and Getable of values of V. The actual value, V is not accessible directly but is only intended to be transferred between two different threads.

Methods

impl<T, V> OpaqueValue<T, V> where T: Deref<Target=Thread>

unsafe fn get_value(&self) -> Value

Unsafe as Value are not rooted

fn get_ref(&self) -> ValueRef

Trait Implementations

impl<T, V> Debug for OpaqueValue<T, V> where T: Deref<Target=Thread>

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

Formats the value using the given formatter.

impl<T, V> Clone for OpaqueValue<T, V> where T: Deref<Target=Thread> + Clone

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T, V> VmType for OpaqueValue<T, V> where T: Deref<Target=Thread>,
        V: VmType,
        V::Type: Sized

type Type = V::Type

A version of Self which implements Any allowing a TypeId to be retrieved

fn make_type(vm: &Thread) -> ArcType

Creates an gluon type which maps to Self in rust

fn extra_args() -> VmIndex

How many extra arguments a function returning this type requires. Used for abstract types which when used in return position should act like they still need more arguments before they are called

impl<'vm, T, V> Pushable<'vm> for OpaqueValue<T, V> where T: Deref<Target=Thread>,
        V: VmType,
        V::Type: Sized

fn push(self, thread: &'vm Thread, context: &mut Context) -> Result<()>

Pushes self to stack. If the call is successful a single element should have been added to the stack and Ok(()) should be returned. If the call is unsuccessful Status:Error should be returned and the stack should be left intact

impl<'vm, V> Getable<'vm> for OpaqueValue<&'vm Thread, V>

fn from_value(vm: &'vm Thread,
              value: Variants)
              -> Option<OpaqueValue<&'vm Thread, V>>

unsafe fn from_value_unsafe(vm: &'vm Thread, value: Variants) -> Option<Self>

unsafe version of from_value which allows references to the internal of GcPtr's to be extracted if value is rooted

impl<'vm, V> Getable<'vm> for OpaqueValue<RootedThread, V>

fn from_value(vm: &'vm Thread,
              value: Variants)
              -> Option<OpaqueValue<RootedThread, V>>

unsafe fn from_value_unsafe(vm: &'vm Thread, value: Variants) -> Option<Self>

unsafe version of from_value which allows references to the internal of GcPtr's to be extracted if value is rooted