lifecycle-deprecated.md
In tidyselect: Select from a Set of Strings

vars_select() type-checks inputs

Code
  vars_select(letters, TRUE)
Condition
  Error:
  ! Can't select columns with `TRUE`.
  x `TRUE` must be numeric or character, not `TRUE`.
Code
  vars_select(letters, 2.5)
Condition
  Error:
  ! Can't select columns with `2.5`.
  x Can't convert from `2.5` <double> to <integer> due to loss of precision.
Code
  vars_select(letters, structure(1:3, class = "tidysel_foobar"))
Condition
  Error:
  ! Can't select columns with `structure(1:3, class = "tidysel_foobar")`.
  x `structure(1:3, class = "tidysel_foobar")` must be numeric or character, not a <tidysel_foobar> object.

vars_select() has consistent location errors

Code
  # Bare names
  vars_select(letters, foo)
Condition
  Error:
  ! Can't select columns that don't exist.
  x Column `foo` doesn't exist.
Code
  vars_select(letters, -foo)
Condition
  Error:
  ! Can't select columns that don't exist.
  x Column `foo` doesn't exist.
Code
  # Names
  vars_select(letters, "foo")
Condition
  Error:
  ! Can't select columns that don't exist.
  x Column `foo` doesn't exist.
Code
  vars_select(letters, a:"foo")
Condition
  Error:
  ! Can't select columns that don't exist.
  x Column `foo` doesn't exist.
Code
  # Locations
  vars_select(letters, 30, 50, 100)
Condition
  Error:
  ! Can't select columns past the end.
  i Locations 30, 50, and 100 don't exist.
  i There are only 26 columns.
Code
  vars_select(letters, -100)
Condition
  Error:
  ! Can't select columns past the end.
  i Location 100 doesn't exist.
  i There are only 26 columns.
Code
  vars_select(letters, !100)
Condition
  Error:
  ! Can't select columns past the end.
  i Location 100 doesn't exist.
  i There are only 26 columns.

when .strict = FALSE, vars_rename always succeeds

Code
  vars_rename(c("a", "b"), d = e, .strict = TRUE)
Condition
  Error:
  ! Can't rename columns that don't exist.
  x Column `e` doesn't exist.
Code
  vars_rename(c("a", "b"), d = e, f = g, .strict = TRUE)
Condition
  Error:
  ! Can't rename columns that don't exist.
  x Column `e` doesn't exist.
Code
  vars_rename(c("a", "b"), d = "e", f = "g", .strict = TRUE)
Condition
  Error:
  ! Can't rename columns that don't exist.
  x Column `e` doesn't exist.

vars_rename() disallows renaming to same column

Code
  # New column
  vars_rename(c("a", "b", "c"), foo = a, foo = b)
Condition
  Error:
  ! Names must be unique.
  x These names are duplicated:
    * "foo" at locations 1 and 2.
Code
  # Existing column
  vars_rename(c("a", "b", "c"), c = a, c = b)
Condition
  Error:
  ! Names must be unique.
  x These names are duplicated:
    * "c" at locations 1, 2, and 3.

vars_rename() disallows renaming to existing columns (#70)

Code
  # One column
  vars_rename(c("a", "b", "c"), b = a)
Condition
  Error:
  ! Names must be unique.
  x These names are duplicated:
    * "b" at locations 1 and 2.
Code
  # Multiple columns
  vars_rename(c("a", "b", "c", "d"), c = a, d = b)
Condition
  Error:
  ! Names must be unique.
  x These names are duplicated:
    * "c" at locations 1 and 3.
    * "d" at locations 2 and 4.
Code
  # Overlapping rename with one duplicate column
  vars_rename(c("a", "b", "c"), b = a, c = b)
Condition
  Error:
  ! Names must be unique.
  x These names are duplicated:
    * "c" at locations 2 and 3.

vars_rename() type-checks arguments

Code
  vars_rename(letters, A = TRUE)
Condition
  Error:
  ! Can't rename columns with `TRUE`.
  x `TRUE` must be numeric or character, not `TRUE`.
Code
  vars_rename(letters, A = 1.5)
Condition
  Error:
  ! Can't rename columns with `1.5`.
  x Can't convert from `1.5` <double> to <integer> due to loss of precision.
Code
  vars_rename(letters, A = list())
Condition
  Error:
  ! Can't rename columns with `list()`.
  x `list()` must be numeric or character, not an empty list.