These functions are automatically called when no vec_ptype2() or
vec_cast() method is implemented for a pair of types.
They apply special handling if one of the inputs is of type
AsIs or sfc.
They attempt a number of fallbacks in cases where it would be too inconvenient to be strict:
If the class and attributes are the same they are considered
compatible. vec_default_cast() returns x in this case.
In case of incompatible data frame classes, they fall back to
data.frame. If an incompatible subclass of tibble is
involved, they fall back to tbl_df.
Otherwise, an error is thrown with stop_incompatible_type() or
stop_incompatible_cast().
vec_default_cast(x, to, ..., x_arg = "", to_arg = "", call = caller_env())vec_default_ptype2(x, y, ..., x_arg = "", y_arg = "", call = caller_env())
Vectors to cast.
Type to cast to. If NULL, x will be returned as is.
For vec_cast_common(), vectors to cast. For
vec_cast(), vec_cast_default(), and vec_restore(), these
dots are only for future extensions and should be empty.
Argument names for x and to. These are used
in error messages to inform the user about the locations of
incompatible types (see stop_incompatible_type()).
Argument names for x and to. These are used
in error messages to inform the user about the locations of
incompatible types (see stop_incompatible_type()).
The execution environment of a currently
running function, e.g. caller_env(). The function will be
mentioned in error messages as the source of the error. See the
call argument of abort() for more information.