Add an attribute to an object indicating which named elements change

This is a generic definition that can be extended according to class.

.addChangedAttr(object, preDigest, origArguments, ...)

# S4 method for ANY
.addChangedAttr(object, preDigest, origArguments, ...)

Arguments

object

Any R object returned from a function

preDigest

The full, element by element hash of the input arguments to that same function, e.g., from .robustDigest

origArguments

These are the actual arguments (i.e., the values, not the names) that were the source for preDigest

...

Anything passed to methods.

Value

The object, modified

Author

Eliot McIntire

Examples

a <- 1
.addChangedAttr(a) # does nothing because default method is just a pass through
#> [1] 1