Class Callback

constructor

• new Callback(fn: Function, returnType: AnyType, argTypes?: AnyType[]): Callback

  Parameters

  • fn: Function
  • returnType: AnyType
  • OptionalargTypes: AnyType[]

  Returns Callback

Readonlypointer

getPointer

• getPointer(): bigint

  Return the function pointer, throwing if the callback has been released.

  Returns bigint

release

• release(): void

  Release the callback and free native resources. Must be called when done.

  Returns void

setErrorHandler

• setErrorHandler(handler: (message: string) => void): void

  Handler called with the error message when the JS function throws. Without a handler the error is reported with process.emitWarning.

  Parameters

  • handler: (message: string) => void

  Returns void

getLastError

• getLastError(): string

  Message of the last exception thrown by the JS function, or null.

  Returns string