Package-level declarations

Primitive: Inform the VM of the A_Function to use to stringify values. Answer the A_Function that was previously in use.

Primitive: Get the function to invoke to raise a Java Throwable (wrapped in a pojo) as an Avail exception. That function is invoked whenever a Java Throwable is caught in a Pojo method or Callback invocation.

Primitive: Set the function to invoke as the base frame of every fiber. It takes a function and a tuple of arguments, and returns that function's result, if successful, out to the fiber result itself. Answer the previous value of this hook function.

Primitive: Set the function to invoke as the base frame of every fiber that would be captured by a debugger. It takes a function and a tuple of arguments, and returns that function's result, if successful, out to the fiber result itself. Answer the previous value of this hook function.

Primitive: Set the function to invoke whenever a variable with write reactors is written when write tracing is not enabled.

Primitive: Set the function to invoke whenever a whenever a method send fails for a definitional reason.

Primitive: Set the function to invoke to raise a Java Throwable (wrapped in a pojo) as an Avail exception. That function is invoked whenever a Java Throwable is caught in a Pojo method or Callback invocation.

Primitive: Set the function to invoke whenever the result produced by a method invocation disagrees with the type decreed by the applicable semantic restrictions at the call site.

Primitive: Set the function to invoke whenever the value produced by a method send disagrees with the type expected.