Struct qjs::Runtime

pub struct Runtime(_);

Runtime represents a Javascript runtime corresponding to an object heap.

Several runtimes can exist at the same time but they cannot exchange objects. Inside a given runtime, no multi-threading is supported.

Methods

impl Runtime

pub fn new_class_id() -> ClassId

New Class ID which are globally allocated (i.e. for all runtimes).

impl Runtime

pub fn new() -> Self

Construct a new Runtime.

pub fn with_malloc_funcs<T>(
    malloc_funcs: &MallocFunctions,
    opaque: Option<NonNull<T>>
) -> Self

Construct a new Runtime with custom memory allocation functions.

impl Runtime

pub fn userdata_class_id() -> ClassId

Methods from Deref<Target = RuntimeRef>

pub fn free_atom(&self, atom: JSAtom)

pub fn new_class(&self, class_id: ClassId, class_def: &ClassDef) -> bool

Register a new Javascript class.

pub fn is_registered_class(&self, class_id: ClassId) -> bool

Checks if a class ID has been registered.

pub fn is_job_pending(&self) -> bool

pub fn execute_pending_job(&self) -> Result<Option<&ContextRef>, Error>

pub fn set_module_loader<T>(
    &self,
    module_normalize: ModuleNormalizeFunc,
    module_loader: ModuleLoaderFunc,
    opaque: Option<NonNull<T>>
)

Set the module loader and normalizer functions.

pub fn set_memory_limit(&self, limit: Option<usize>) -> &Self

Set a global memory allocation limit to a given Runtime.

pub fn set_gc_threshold(&self, gc_threshold: usize) -> &Self

Set the GC threshold to a given Runtime.

pub fn run_gc(&self)

Force to run GC to a given Runtime.

pub fn is_live_object(&self, obj: &Value) -> bool

pub fn is_gc_swap(&self) -> bool

pub fn memory_usage(&self) -> MemoryUsage

Compute memory used by various object types.

pub fn set_interrupt_handler(&self, handler: InterruptHandler)

Set a callback which is regularly called by the engine when it is executing code.

This callback can be used to implement an execution timeout.

pub fn std_free_handlers(&self)

pub fn free_value(&self, v: Value)

Trait Implementations

impl Send for Runtime

impl Drop for Runtime

fn drop(&mut self)

Executes the destructor for this type.

impl AsMut<RuntimeRef> for Runtime

fn as_mut(&mut self) -> &mut RuntimeRef

Performs the conversion.

impl PartialEq<Runtime> for Runtime

fn eq(&self, other: &Runtime) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialEq<RuntimeRef> for Runtime

fn eq(&self, other: &RuntimeRef) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialEq<Runtime> for RuntimeRef

fn eq(&self, other: &Runtime) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Default for Runtime

fn default() -> Self

Returns the "default value" for a type.

impl AsRef<RuntimeRef> for Runtime

fn as_ref(&self) -> &RuntimeRef

Performs the conversion.

impl DerefMut for Runtime

fn deref_mut(&mut self) -> &mut RuntimeRef

Mutably dereferences the value.

impl Deref for Runtime

type Target = RuntimeRef

The resulting type after dereferencing.

fn deref(&self) -> &RuntimeRef

Dereferences the value.

impl Debug for Runtime

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

Formats the value using the given formatter.

impl Borrow<RuntimeRef> for Runtime

fn borrow(&self) -> &RuntimeRef

Immutably borrows from an owned value.

impl BorrowMut<RuntimeRef> for Runtime

fn borrow_mut(&mut self) -> &mut RuntimeRef

Mutably borrows from an owned value.

impl ForeignType for Runtime

type CType = JSRuntime

The raw C type.

type Ref = RuntimeRef

The type representing a reference to this type.

unsafe fn from_ptr(ptr: *mut JSRuntime) -> Runtime

Constructs an instance of this type from its raw type.

fn as_ptr(&self) -> *mut JSRuntime

Returns a raw pointer to the wrapped value.