Identify in pd the id for the object given.
pd_identify(pd, object)# S3 method for default
pd_identify(pd, object)
# S3 method for NULL
pd_identify(pd, object)
# S3 method for srcref
pd_identify(pd, object)
the parse data.
an object that originated in pd, for which to obtain the ID.
default
: Default method identifies by base::srcref()
.
NULL
: Passing a NULL object will result in an error.
srcref
: Identify by explicit srcref
.