fmesher (version 0.3.0)

call-stack: Call stack utility functions

Description

Helper functions for displaying call stack information

Usage

fm_caller_name(which = 0L, override = NULL)
fm_call_stack(start = 0L, end = 0L, with_numbers = TRUE, ...)
fm_try_callstack(expr)

Value

fm_caller_name returns a string with the the name of a calling function

fm_call_stack returns a character vector

fm_try_callstack If successful, returns (invisibly) the value from the evaluated expression, otherwise an error object with call stack information attached to the error message.

Arguments

which

The number of frames to go back from the caller

override

character; Overrides the automated function name logic

start

The stack starting point

end

The stack end point

with_numbers

INclude call stack location numbers

...

Currently unused

expr

An expression to evaluate

Functions

• fm_call_stack():

• fm_try_callstack(): Inspired by berryFunctions::tryStack

Examples

fun <- function() {
  print(fm_caller_name())
  nm <- fm_caller_name()
  print(nm)
}
fun()