module/system/base/compile.scm

   1 ;;; High-level compiler interface
   2
   3 ;; Copyright (C) 2001 Free Software Foundation, Inc.
   4
   5 ;; This program is free software; you can redistribute it and/or modify
   6 ;; it under the terms of the GNU General Public License as published by
   7 ;; the Free Software Foundation; either version 2, or (at your option)
   8 ;; any later version.
   9 ;;
  10 ;; This program is distributed in the hope that it will be useful,
  11 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 ;; GNU General Public License for more details.
  14 ;;
  15 ;; You should have received a copy of the GNU General Public License
  16 ;; along with this program; see the file COPYING.  If not, write to
  17 ;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18 ;; Boston, MA 02111-1307, USA.
  19
  20 ;;; Code:
  21
  22 (define-module (system base compile)
  23   :use-syntax (system base syntax)
  24   :use-module (system base language)
  25   :use-module (system il compile)
  26   :use-module (system il glil)
  27   :use-module ((system vm core)
  28                :select (the-vm vm-load objcode->u8vector load-objcode))
  29   :use-module (system vm assemble)
  30   :use-module (ice-9 regex)
  31   :export (syntax-error compile-file load-source-file load-file
  32            compiled-file-name
  33            scheme-eval read-file-in compile-in))
  34
  35 ;;;
  36 ;;; Compiler environment
  37 ;;;
  38
  39 (define (syntax-error loc msg exp)
  40   (throw 'syntax-error loc msg exp))
  41
  42 (define-macro (call-with-compile-error-catch thunk)
  43   `(catch 'syntax-error
  44          ,thunk
  45          (lambda (key loc msg exp)
  46            (if (pair? loc)
  47                (format #t "~A:~A: ~A: ~A~%" (car loc) (cdr loc) msg exp)
  48                (format #t "unknown location: ~A: ~A~%" msg exp)))))
  49
  50 (export-syntax  call-with-compile-error-catch)
  51
  52
  53 \f
  54 ;;;
  55 ;;; Compiler
  56 ;;;
  57
  58 (define (scheme) (lookup-language 'scheme))
  59
  60 (define (compile-file file . opts)
  61   (let ((comp (compiled-file-name file))
  62         (scheme (scheme)))
  63     (catch 'nothing-at-all
  64       (lambda ()
  65         (call-with-compile-error-catch
  66          (lambda ()
  67            (call-with-output-file comp
  68              (lambda (port)
  69                (let* ((source (read-file-in file scheme))
  70                       (objcode (apply compile-in source (current-module)
  71                                       scheme opts)))
  72                  (if (memq :c opts)
  73                    (pprint-glil objcode port)
  74                    (uniform-vector-write (objcode->u8vector objcode) port)))))
  75            (format #t "wrote `~A'\n" comp))))
  76       (lambda (key . args)
  77         (format #t "ERROR: during compilation of ~A:\n" file)
  78         (display "ERROR: ")
  79         (apply format #t (cadr args) (caddr args))
  80         (newline)
  81         (format #t "ERROR: ~A ~A ~A\n" key (car args) (cadddr args))
  82         (delete-file comp)))))
  83
  84 ; (let ((c-f compile-file))
  85 ;   ;; XXX:  Debugging output
  86 ;   (set! compile-file
  87 ;       (lambda (file . opts)
  88 ;         (format #t "compile-file: ~a ~a~%" file opts)
  89 ;         (let ((result (apply c-f (cons file opts))))
  90 ;           (format #t "compile-file: returned ~a~%" result)
  91 ;           result))))
  92
  93 (define (load-source-file file . opts)
  94   (let ((source (read-file-in file (scheme))))
  95     (apply compile-in source (current-module) (scheme) opts)))
  96
  97 (define (load-file file . opts)
  98   (let ((comp (compiled-file-name file)))
  99     (if (file-exists? comp)
 100         (load-objcode comp)
 101         (apply load-source-file file opts))))
 102
 103 (define (compiled-file-name file)
 104   (let ((m (string-match "\\.[^.]*$" file)))
 105     (string-append (if m (match:prefix m) file) ".go")))
 106
 107 (define (scheme-eval x e)
 108   (vm-load (the-vm) (compile-in x e (scheme))))
 109
 110 \f
 111 ;;;
 112 ;;; Scheme compiler interface
 113 ;;;
 114
 115 (define (read-file-in file lang)
 116   (call-with-input-file file (language-read-file lang)))
 117
 118 (define (compile-in x e lang . opts)
 119   (save-module-excursion
 120    (lambda ()
 121      (catch 'result
 122       (lambda ()
 123         ;; expand
 124         (set! x ((language-expander lang) x e))
 125         (if (memq :e opts) (throw 'result x))
 126         ;; translate
 127         (set! x ((language-translator lang) x e))
 128         (if (memq :t opts) (throw 'result x))
 129         ;; compile
 130         (set! x (apply compile x e opts))
 131         (if (memq :c opts) (throw 'result x))
 132         ;; assemble
 133         (apply assemble x e opts))
 134       (lambda (key val) val)))))
 135
 136 ;;;
 137 ;;;
 138 ;;;
 139
 140 (define (compile-and-load file . opts)
 141   (let ((comp (object-file-name file)))
 142     (if (or (not (file-exists? comp))
 143             (> (stat:mtime (stat file)) (stat:mtime (stat comp))))
 144         (compile-file file))
 145     (load-compiled-file comp)))
 146
 147 (define (load/compile file . opts)
 148   (let* ((file (file-full-name file))
 149          (compiled (object-file-name file)))
 150     (if (or (not (file-exists? compiled))
 151             (> (stat:mtime (stat file)) (stat:mtime (stat compiled))))
 152         (apply compile-file file #f opts))
 153     (if (memq #:b opts)
 154         (apply vm-trace (the-vm) (load-objcode compiled) opts)
 155         ((the-vm) (load-objcode compiled)))))
 156
 157 (define (file-full-name filename)
 158   (let* ((port (current-load-port))
 159          (oldname (and port (port-filename port))))
 160     (if (and oldname
 161              (> (string-length filename) 0)
 162              (not (char=? (string-ref filename 0) #\/))
 163              (not (string=? (dirname oldname) ".")))
 164         (string-append (dirname oldname) "/" filename)
 165         filename)))