Make (let ((:key 'foo)) :key) signal an error in lexical elisp, too

* src/lread.c (intern_sym): Mark keywords as special (bug#38872).
2020-09-20 21:30:54 +02:00
parent 300a5a5757
commit dc2168ebf2
1 changed files with 3 additions and 0 deletions
--- a/src/lread.c
+++ b/src/lread.c
@@ -4104,6 +4104,9 @@ intern_sym (Lisp_Object sym, Lisp_Object obarray, Lisp_Object index)
    {
      make_symbol_constant (sym);
      XSYMBOL (sym)->u.s.redirect = SYMBOL_PLAINVAL;
+      /* Mark keywords as special.  This makes (let ((:key 'foo)) ...)
+	 in lexically bound elisp signal an error, as documented.  */
+      XSYMBOL (sym)->u.s.declared_special = true;
      SET_SYMBOL_VAL (XSYMBOL (sym), sym);
    }