- /* This is a lambda expression within a lexical environment;
- return an interpreted closure instead of a simple lambda. */
- return Fcons (Qclosure, Fcons (Vinternal_interpreter_environment,
- XCDR (quoted)));
+ { /* This is a lambda expression within a lexical environment;
+ return an interpreted closure instead of a simple lambda. */
+ Lisp_Object cdr = XCDR (quoted);
+ Lisp_Object tmp = cdr;
+ if (CONSP (tmp)
+ && (tmp = XCDR (tmp), CONSP (tmp))
+ && (tmp = XCAR (tmp), CONSP (tmp))
+ && (EQ (QCdocumentation, XCAR (tmp))))
+ { /* Handle the special (:documentation <form>) to build the docstring
+ dynamically. */
+ Lisp_Object docstring = eval_sub (Fcar (XCDR (tmp)));
+ CHECK_STRING (docstring);
+ cdr = Fcons (XCAR (cdr), Fcons (docstring, XCDR (XCDR (cdr))));
+ }
+ return Fcons (Qclosure, Fcons (Vinternal_interpreter_environment,
+ cdr));
+ }