shape_utils.md
In tibblify: Rectangle Nested Lists

.abort_not_tibblifiable throws informative errors

Code
  (expect_pkg_error_classes(.abort_not_tibblifiable(letters), "tibblify",
  "untibblifiable_object"))
Output
  <error/tibblify-error-untibblifiable_object>
  Error:
  ! `letters` is neither an object nor a list of objects.
  An object
  x is a list,
  x is fully named,
  v and has unique names.
  A list of objects is
  x a data frame or
  x a list and
  x each element is `NULL` or an object.

Code
  (expect_pkg_error_classes(.abort_not_tibblifiable(list(1, 2, 3)), "tibblify",
  "untibblifiable_object"))
Output
  <error/tibblify-error-untibblifiable_object>
  Error:
  ! `list(1, 2, 3)` is neither an object nor a list of objects.
  An object
  v is a list,
  x is fully named,
  v and has unique names.
  A list of objects is
  x a data frame or
  v a list and
  x each element is `NULL` or an object.

Code
  (expect_pkg_error_classes(.abort_not_tibblifiable(list(a = 1, a = 2)),
  "tibblify", "untibblifiable_object"))
Output
  <error/tibblify-error-untibblifiable_object>
  Error:
  ! `list(a = 1, a = 2)` is neither an object nor a list of objects.
  An object
  v is a list,
  v is fully named,
  x and has unique names.
  A list of objects is
  x a data frame or
  v a list and
  x each element is `NULL` or an object.

Code
  (expect_pkg_error_classes(.abort_not_tibblifiable(list(list(a = 1), letters)),
  "tibblify", "untibblifiable_object"))
Output
  <error/tibblify-error-untibblifiable_object>
  Error:
  ! `list(list(a = 1), letters)` is neither an object nor a list of objects.
  An object
  v is a list,
  x is fully named,
  v and has unique names.
  A list of objects is
  x a data frame or
  v a list and
  x each element is `NULL` or an object.