| 1 | ;;; -*-lisp-*- |
| 2 | ;;; |
| 3 | ;;; Main tables for the translator |
| 4 | ;;; |
| 5 | ;;; (c) 2009 Straylight/Edgeware |
| 6 | ;;; |
| 7 | |
| 8 | ;;;----- Licensing notice --------------------------------------------------- |
| 9 | ;;; |
| 10 | ;;; This file is part of the Simple Object Definition system. |
| 11 | ;;; |
| 12 | ;;; SOD is free software; you can redistribute it and/or modify |
| 13 | ;;; it under the terms of the GNU General Public License as published by |
| 14 | ;;; the Free Software Foundation; either version 2 of the License, or |
| 15 | ;;; (at your option) any later version. |
| 16 | ;;; |
| 17 | ;;; SOD is distributed in the hope that it will be useful, |
| 18 | ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | ;;; GNU General Public License for more details. |
| 21 | ;;; |
| 22 | ;;; You should have received a copy of the GNU General Public License |
| 23 | ;;; along with SOD; if not, write to the Free Software Foundation, |
| 24 | ;;; Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 25 | |
| 26 | (cl:in-package #:sod) |
| 27 | |
| 28 | ;;;-------------------------------------------------------------------------- |
| 29 | ;;; Main tables. |
| 30 | |
| 31 | (defvar *module-map* (make-hash-table :test #'equal) |
| 32 | "A hash table mapping file truenames (pathnames) to modules. |
| 33 | |
| 34 | This is used to prevent multiple inclusion of a single module, which would |
| 35 | be bad. Usually it maps pathnames to MODULE objects. As a special case, |
| 36 | the truename a module which is being parsed maps to :IN-PROGRESS, which |
| 37 | can be used to detect dependency cycles.") |
| 38 | |
| 39 | (defvar *type-map* (make-hash-table :test #'equal) |
| 40 | "A hash table mapping type names to the C types they describe. |
| 41 | |
| 42 | Since a class is a C type, it gets its own entry in here as a C-CLASS-TYPE |
| 43 | object. This is how we find classes by name: the C-CLASS-TYPE object has |
| 44 | a reference to the underlying SOD-CLASS instance.") |
| 45 | |
| 46 | (defparameter *builtin-module* nil |
| 47 | "Built-in module; populated later.") |
| 48 | |
| 49 | ;;;-------------------------------------------------------------------------- |
| 50 | ;;; Utilities. |
| 51 | |
| 52 | (defparameter *clear-the-decks-functions* |
| 53 | '(reset-type-and-module-map |
| 54 | reset-builtin-module)) |
| 55 | |
| 56 | (defun reset-type-and-module-map () |
| 57 | "Reset the main hash tables, clearing the translator's state. |
| 58 | |
| 59 | One of the *CLEAR-THE-DECKS-FUNCTIONS*." |
| 60 | |
| 61 | (setf *module-map* (make-hash-table :test #'equal) |
| 62 | *type-map* (make-hash-table :test #'equal))) |
| 63 | |
| 64 | (defun populate-type-map () |
| 65 | "Store some important simple types in the type map." |
| 66 | (dolist (name '("va_list" "size_t" "ptrdiff_t")) |
| 67 | (setf (gethash name *type-map*) |
| 68 | (make-simple-type name)))) |
| 69 | |
| 70 | (defun clear-the-decks () |
| 71 | "Reinitialize the translator's state. |
| 72 | |
| 73 | This is mainly useful when testing the translator from a Lisp REPL." |
| 74 | (dolist (func *clear-the-decks-functions*) |
| 75 | (funcall func))) |
| 76 | |
| 77 | #+test |
| 78 | (clear-the-decks) |
| 79 | |
| 80 | ;;;----- That's all, folks -------------------------------------------------- |