Struct deno_core::JsRuntimeInspector

pub struct JsRuntimeInspector { /* private fields */ }

This structure is used responsible for providing inspector interface to the JsRuntime.

It stores an instance of v8::inspector::V8Inspector and additionally implements v8::inspector::V8InspectorClientImpl.

After creating this structure it’s possible to connect multiple sessions to the inspector, in case of Deno it’s either: a “websocket session” that provides integration with Chrome Devtools, or an “in-memory session” that is used for REPL or converage collection.

Implementations

impl JsRuntimeInspector

pub fn new(
    isolate: &mut OwnedIsolate,
    context: Global<Context>,
    is_main: bool
) -> Rc<RefCell<Self>>

pub fn context_destroyed(
    &mut self,
    scope: &mut HandleScope<'_>,
    context: Global<Context>
)

pub fn has_active_sessions(&self) -> bool

pub fn has_blocking_sessions(&self) -> bool

pub fn wait_for_session(&mut self)

This function blocks the thread until at least one inspector client has established a websocket connection.

pub fn wait_for_session_and_break_on_next_statement(&mut self)

This function blocks the thread until at least one inspector client has established a websocket connection.

After that, it instructs V8 to pause at the next statement. Frontend must send “Runtime.runIfWaitingForDebugger” message to resume execution.

pub fn get_session_sender(&self) -> UnboundedSender<InspectorSessionProxy>

Obtain a sender for proxy channels.

pub fn add_deregister_handler(&mut self) -> Receiver<()>

Create a channel that notifies the frontend when inspector is dropped.

NOTE: Only a single handler is currently available.

pub fn create_local_session(&self) -> LocalInspectorSession

Create a local inspector session that can be used on the same thread as the isolate.

Trait Implementations

impl Drop for JsRuntimeInspector

fn drop(&mut self)

Executes the destructor for this type.

impl Future for JsRuntimeInspector

Polling JsRuntimeInspector allows inspector to accept new incoming connections and “pump” messages in different sessions.

It should be polled on tick of event loop, ie. in JsRuntime::poll_event_loop function.

type Output = ()

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<()>

Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.

impl V8InspectorClientImpl for JsRuntimeInspector

fn base(&self) -> &V8InspectorClientBase

fn base_mut(&mut self) -> &mut V8InspectorClientBase

fn run_message_loop_on_pause(&mut self, context_group_id: i32)

fn quit_message_loop_on_pause(&mut self)

fn run_if_waiting_for_debugger(&mut self, context_group_id: i32)

fn generate_unique_id(&mut self) -> i64

fn console_api_message(
    &mut self,
    context_group_id: i32,
    level: i32,
    message: &StringView<'_>,
    url: &StringView<'_>,
    line_number: u32,
    column_number: u32,
    stack_trace: &mut V8StackTrace
)