add comp.el

lisp/emacs-lisp/comp.el

@@ -0,0 +1,50 @@
+;;; comp.el --- compilation of Lisp code into native code -*- lexical-binding: t -*-
+
+;; Copyright (C) 2019 Free Software Foundation, Inc.
+
+;; Keywords: lisp
+;; Package: emacs
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Code:
+
+(require 'disass)
+(eval-when-compile (require 'cl-lib))
+
+(defgroup comp nil
+  "Emacs Lisp native compiler."
+  :group 'lisp)
+
+(defun comp-recuparate-lap (fun)
+  "Compile FUN if necessary and recuparate its LAP rapresentation."
+  (byte-compile-close-variables
+   (byte-compile-top-level (byte-compile-preprocess fun))
+   byte-compile-lap-output))
+
+(defun comp-compute-blocks (obj)
+  "Split OBJ in basic blocks."
+  obj)
+
+(defun native-compile (fun)
+  "FUN is the function definition to be compiled to native code."
+  (if-let ((f (symbol-function fun)))
+      (comp-recuparate-lap f)
+    (error "Trying to native compile not a function")))
+
+(provide 'comp)
+
+;;; comp.el ends here