ensuring-compiled-body

Arguments: &body body

This macro is like progn, in that is executes the forms in body sequentially, but when a ensuring-compiled-body form is encountered in interpreted code, it wraps the code body in a lambda, processes it with compile-lambda-expr-in-env, and funcalls the result.

Here is this macro being used by the Allegro CL implementation of cl:time, as an example of its use:

(defmacro time (form)
  `(ensuring-compiled-body
    (excl::time-a-funcall #'excl::time-report *trace-output*
                    #'(lambda () ,form))))

See Compiling individual forms or groups of forms in compiling.htm.

Copyright (c) 1998-2016, Franz Inc. Oakland, CA., USA. All rights reserved.
This page is new in the 8.2 release.
Created 2016.6.21.