Struct deno_core::CoreIsolateState

pub struct CoreIsolateState {
    pub resource_table: Rc<RefCell<ResourceTable>>,
    pub global_context: Global<Context>,
    pub op_registry: OpRegistry,
    // some fields omitted
}

Internal state for CoreIsolate which is stored in one of v8::Isolate's embedder slots.

Fields

resource_table: Rc<RefCell<ResourceTable>>

global_context: Global<Context>

op_registry: OpRegistry

Implementations

impl CoreIsolateState

pub fn register_op<F>(&mut self, name: &str, op: F) -> OpId where
    F: Fn(&mut CoreIsolateState, &[u8], &mut [ZeroCopyBuf]) -> Op + 'static, 

Defines the how Deno.core.dispatch() acts. Called whenever Deno.core.dispatch() is called in JavaScript. zero_copy_buf corresponds to the second argument of Deno.core.dispatch().

Requires runtime to explicitly ask for op ids before using any of the ops.

pub fn set_js_error_create_fn(
    &mut self,
    f: impl Fn(JSError) -> ErrBox + 'static
)

Allows a callback to be set whenever a V8 exception is made. This allows the caller to wrap the JSError into an error. By default this callback is set to JSError::create.

pub fn dispatch_op<'s>(
    &mut self,
    scope: &mut impl ToLocal<'s>,
    op_id: OpId,
    control_buf: &[u8],
    zero_copy_bufs: &mut [ZeroCopyBuf]
) -> Option<(OpId, Box<[u8]>)>