A visual debugger session.



capabilities: Capabilities

Returns the initialize response.

connection: ISessionConnection

The API session connection to connect to a debugger.

currentExceptionFilters: string[]

Get current exception filter.

disposed: ISignal<ISession, void>

A signal emitted when the object is disposed.

eventMessage: ISignal<ISession, Event>

Signal emitted for debug event messages.

exceptionBreakpointFilters: ExceptionBreakpointsFilter[]

Get exception filters and default values.

exceptionPaths: string[]

Whether the debug session is pausing on exceptions.

isDisposed: boolean

Test whether the object has been disposed.


This property is always safe to access.

isStarted: boolean

Whether the debug session is started.


  • Dispose of the resources held by the object.


    If the object's dispose method is called more than once, all calls made after the first will be a no-op.

    Undefined Behavior

    It is undefined behavior to use any functionality of the object after it has been disposed unless otherwise explicitly noted.

    Returns void

  • Whether the debugger is pausing on exception.


    • Optional filter: string

      Specify a filter

    Returns boolean

  • Start a new debug session.

    Returns Promise<void>

  • Stop a running debug session.

    Returns Promise<void>

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