New library thunk.el

thunk.el is extracted from stream.el in ELPA, with additional tests.

* lisp/emacs-lisp/thunk.el: New file.
* test/automated/thunk-tests.el: New file.
* etc/NEWS: Add information about thunk.el

1 files changed, 5 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 6588aad5bfc..58ab6bec161 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -582,6 +582,11 @@ prefixed with `seq-' and work on lists, strings and vectors.
 The map library provides map-manipulation functions that work on alists,
 hash-table and arrays.  All functions are prefixed with "map-".
 
+** thunk
+*** New thunk library:
+Thunk provides functions and macros to control the evaluation of
+forms.
+
 ** Calendar and diary
 
 +++