Don't export method for internal class

Fixes r-lib#395

NAMESPACE

@@ -12,7 +12,6 @@ S3method(headers,response)
 S3method(http_error,character)
 S3method(http_error,integer)
 S3method(http_error,response)
-S3method(length,path)
 S3method(print,cache_info)
 S3method(print,handle)
 S3method(print,oauth_app)

NEWS.md

@@ -1,5 +1,7 @@
 # httr 1.2.1.9000
 
+* Don't export `length()` method for internal `path` class (#395)
+
 * New oauth cache files are always added to `.gitignore` and, if it exists, `.Rbuildignore`. Specifically, this now happens when option `httr_oauth_cache = TRUE` or user specifies cache file name explicitly. (@jennybc #436)
 
 * New functions `set_callback()` and `get_callback()` set and query

R/write-function.R

@@ -85,6 +85,5 @@ request_fetch.write_stream <- function(x, url, handle) {
 }
 
 path <- function(x) structure(x, class = "path")
-#' @export
 length.path <- function(x) file.info(x)$size
 is.path <- function(x) inherits(x, "path")