R/compat_friendly_type.R

In ipumsr: An R Interface for Downloading, Reading, and Handling IPUMS Data

# copied directly from rlang file compat-friendly-type.R, commit 962eb3f, on the
# advice of Lionel Henry

friendly_type_of <- function(x, length = FALSE) {
  if (is.object(x)) {
    if (inherits(x, "quosure")) {
      type <- "quosure"
    } else {
      type <- paste(class(x), collapse = "/")
    }
    return(sprintf("a <%s> object", type))
  }

  friendly <- as_friendly_type(typeof(x))

  if (length && rlang::is_vector(x)) {
    friendly <- paste0(friendly, sprintf(" of length %s", length(x)))
  }

  friendly
}

as_friendly_type <- function(type) {
  switch(type,
    logical = "a logical vector",
    integer = "an integer vector",
    numeric = ,
    double = "a double vector",
    complex = "a complex vector",
    character = "a character vector",
    raw = "a raw vector",
    list = "a list",
    NULL = "NULL",
    environment = "an environment",
    externalptr = "a pointer",
    weakref = "a weak reference",
    S4 = "an S4 object",
    name = ,
    symbol = "a symbol",
    language = "a call",
    pairlist = "a pairlist node",
    expression = "an expression vector",
    char = "an internal string",
    promise = "an internal promise",
    ... = "an internal dots object",
    any = "an internal `any` object",
    bytecode = "an internal bytecode object",
    primitive = ,
    builtin = ,
    special = "a primitive function",
    closure = "a function",
    type
  )
}