traceMethods: A function to turn on tracing for all methods of a S4 generic...

In RBioinf: RBioinf

Description

This function can turn on tracing for all methods (or a subset of the methods) of a generic function. It is useful when debugging, as it can help see how the methods are being traversed.

Usage

traceMethods(generic, traceStrings, tracer)
untraceMethods(generic, methodSigs)

Arguments

generic	The name of the generic function, quoted or not.
traceStrings	A string to print when each method is entered.
tracer	A function to insert as the tracer, if missing a function that prints the methods signature is used.
methodSigs	A set of method signatures, as a character vector, that tracing will be turned off for.

Details

traceMethods uses showMethods to figure out what methods exist, and what the signatures are. It then uses trace to set a trace on all methods.

untraceMethods uses the returned value of traceMethods, or any other similar construct to untrace methods for a generic.

Value

A vector of method signatures is returned. This could be then used to untrace the methods (something else to automate).

Author(s)

R. Gentleman

See Also

showMethods, trace

Examples

## Not run: 
   traceMethods{slice}
   untraceMethods{slice}

## End(Not run)

RBioinf documentation built on Nov. 8, 2020, 11:11 p.m.