;;; High-level compiler interface
-;; Copyright (C) 2001 Free Software Foundation, Inc.
+;; Copyright (C) 2001, 2009 Free Software Foundation, Inc.
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
#:export (syntax-error
*current-language*
compiled-file-name compile-file compile-and-load
- compile compile-time-environment
+ load-ensuring-compiled
+ compile
decompile)
#:export-syntax (call-with-compile-error-catch))
,thunk
(lambda (key loc msg exp)
(if (pair? loc)
- (format (current-error-port)
- "~A:~A: ~A: ~A~%" (car loc) (cdr loc) msg exp)
- (format (current-error-port)
- "unknown location: ~A: ~A~%" msg exp)))))
+ (let ((file (or (assq-ref loc 'filename) "unknown file"))
+ (line (assq-ref loc 'line))
+ (col (assq-ref loc 'column)))
+ (format (current-error-port)
+ "~A:~A:~A: ~A: ~A~%" file line col msg exp))
+ (format (current-error-port)
+ "unknown location: ~A: ~S~%" msg exp)))))
\f
;;;
(lambda ()
(with-throw-handler #t
(lambda ()
- (with-output-to-port tmp
- (lambda () (proc (current-output-port))))
+ (proc tmp)
+ (chmod tmp (logand #o0666 (lognot (umask))))
+ (close-port tmp)
(rename-file template filename))
(lambda args
(delete-file template)))))))
x
(lookup-language x)))
-(define* (compile-file file #:key (to 'objcode) (opts '()))
- (let ((comp (compiled-file-name file))
- (lang (ensure-language (current-language)))
- (to (ensure-language to)))
- (catch 'nothing-at-all
- (lambda ()
- (call-with-compile-error-catch
- (lambda ()
- (call-with-output-file/atomic comp
- (lambda (port)
- (let ((print (language-printer to)))
- (print (compile (read-file-in file lang)
- #:from lang #:to to #:opts opts)
- port))))
- (format #t "wrote `~A'\n" comp))))
- (lambda (key . args)
- (format #t "ERROR: during compilation of ~A:\n" file)
- (display "ERROR: ")
- (apply format #t (cadr args) (caddr args))
- (newline)
- (format #t "ERROR: ~A ~A ~A\n" key (car args) (cadddr args))
- (delete-file comp)))))
-
-(define* (compile-and-load file #:key (to 'value) (opts '()))
- (let ((lang (ensure-language (current-language))))
- (compile (read-file-in file lang) #:to 'value #:opts opts)))
-
-(define (compiled-file-name file)
+(define (ensure-directory dir)
+ (or (file-exists? dir)
+ (begin
+ (ensure-directory (dirname dir))
+ (mkdir dir))))
+
+(define* (compile-file file #:key
+ (output-file #f)
+ (env #f)
+ (from (current-language))
+ (to 'objcode)
+ (opts '()))
+ (let ((comp (or output-file (compiled-file-name file)))
+ (in (open-input-file file)))
+ (ensure-directory (dirname comp))
+ (call-with-output-file/atomic comp
+ (lambda (port)
+ ((language-printer (ensure-language to))
+ (read-and-compile in #:env env #:from from #:to to #:opts opts)
+ port)))
+ comp))
+
+(define* (compile-and-load file #:key (from 'scheme) (to 'value) (opts '()))
+ (read-and-compile (open-input-file file)
+ #:from from #:to to #:opts opts))
+
+(define* (load-ensuring-compiled source #:key (from 'scheme)
+ (to 'value) (opts '()))
+ (let ((compiled (compiled-file-name source #:readable #t)))
+ (load-compiled
+ (if (and compiled
+ (>= (stat:mtime (stat compiled)) (stat:mtime (stat source))))
+ compiled
+ (let ((to-compile (compiled-file-name source #:writable #t)))
+ (if compiled
+ (warn "source file" source "newer than" compiled))
+ (if (and compiled
+ (not (string-equal? compiled to-compile))
+ (file-exists? to-compile)
+ (>= (stat:mtime (stat to-compile))
+ (stat:mtime (stat compiled))))
+ (warn "using local compiled copy" to-compile)
+ (begin
+ (format (current-error-port) ";;; Compiling ~s\n" source)
+ (compile-file source #:output-file to-compile)
+ (format (current-error-port) ";;; Success: ~s\n" to-compile)))
+ to-compile)))))
+
+(define (ensure-fallback-path)
+ (let ((home (or (getenv "HOME")
+ (false-if-exception
+ (passwd:dir (getpwuid (getuid)))))))
+ (and home
+ (let ((cache (in-vicinity home ".guile-ccache")))
+ (cond
+ ((and (access? cache (logior W_OK X_OK))
+ (file-is-directory? cache))
+ cache)
+ ((not (file-exists? cache))
+ (and (false-if-exception (mkdir cache))
+ cache))
+ (else #f))))))
+
+(define load-compiled-path
+ (let ((fallback-path #f))
+ (lambda ()
+ (if (not fallback-path)
+ (let ((cache-path (ensure-fallback-path)))
+ (set! fallback-path
+ (if cache-path
+ (list cache-path)
+ '()))))
+ (append %load-path fallback-path))))
+
+(define* (compiled-file-name file #:key (writable #f) (readable #f))
(let ((base (basename file))
(cext (cond ((or (null? %load-compiled-extensions)
(string-null? (car %load-compiled-extensions)))
%load-compiled-extensions)
".go")
(else (car %load-compiled-extensions)))))
- (let lp ((exts %load-extensions))
- (cond ((null? exts) (string-append base cext))
- ((string-null? (car exts)) (lp (cdr exts)))
- ((string-suffix? (car exts) base)
- (string-append
- (substring base 0
- (- (string-length base) (string-length (car exts))))
- cext))
- (else (lp (cdr exts)))))))
+ (define (strip-source-extension base)
+ (let lp ((exts %load-extensions))
+ (cond ((null? exts) (string-append file cext))
+ ((string-null? (car exts)) (lp (cdr exts)))
+ ((string-suffix? (car exts) base)
+ (substring source 0
+ (- (string-length source)
+ (string-length (car exts)))))
+ (else (lp (cdr exts))))))
+ (define (strip-path file paths)
+ (let lp ((paths paths))
+ (cond ((null? paths) file)
+ ((string-prefix? (car paths) file)
+ (substring file (1+ (string-length (car paths)))))
+ (else (lp (cdr paths))))))
+ (let ((sibling (string-append (strip-source-extension file) cext)))
+ (cond
+ (writable
+ ;; either put it right beside the original file, or in our
+ ;; ccache. other things wind up not making sense.
+ (cond
+ ((or (not (file-exists? sibling)) (access? sibling W_OK))
+ sibling)
+ ((ensure-fallback-path)
+ => (lambda (p)
+ (string-append p "/" (strip-path sibling))))
+ (else #f)))
+ (readable
+ (if (access? sibling R_OK)
+ sibling
+ (search-path (load-compiled-path)
+ (strip-path (strip-source-extension file))
+ %load-compiled-extensions #t)))
+ (else
+ sibling)))))
+
\f
;;;
;;; Compiler interface
;;;
-(define (read-file-in file lang)
- (call-with-input-file file
- (or (language-read-file lang)
- (error "language has no #:read-file" lang))))
-
(define (compile-passes from to opts)
(map cdr
(or (lookup-compilation-order from to)
(error "no way to compile" from "to" to))))
(define (compile-fold passes exp env opts)
- (if (null? passes)
- exp
- (receive (exp env) ((car passes) exp env opts)
- (compile-fold (cdr passes) exp env opts))))
+ (let lp ((passes passes) (x exp) (e env) (cenv env) (first? #t))
+ (if (null? passes)
+ (values x e cenv)
+ (receive (x e new-cenv) ((car passes) x e opts)
+ (lp (cdr passes) x e (if first? new-cenv cenv) #f)))))
+
+(define (find-language-joint from to)
+ (let lp ((in (reverse (or (lookup-compilation-order from to)
+ (error "no way to compile" from "to" to))))
+ (lang to))
+ (cond ((null? in)
+ (error "don't know how to join expressions" from to))
+ ((language-joiner lang) lang)
+ (else
+ (lp (cdr in) (caar in))))))
-(define (compile-time-environment)
- "A special function known to the compiler that, when compiled, will
-return a representation of the lexical environment in place at compile
-time. Useful for supporting some forms of dynamic compilation. Returns
-#f if called from the interpreter."
- #f)
+(define* (read-and-compile port #:key
+ (env #f)
+ (from (current-language))
+ (to 'objcode)
+ (opts '()))
+ (let ((from (ensure-language from))
+ (to (ensure-language to)))
+ (let ((joint (find-language-joint from to)))
+ (with-fluids ((*current-language* from))
+ (let lp ((exps '()) (env #f) (cenv env))
+ (let ((x ((language-reader (current-language)) port)))
+ (cond
+ ((eof-object? x)
+ (compile ((language-joiner joint) (reverse exps) env)
+ #:from joint #:to to #:env env #:opts opts))
+ (else
+ ;; compile-fold instead of compile so we get the env too
+ (receive (jexp jenv jcenv)
+ (compile-fold (compile-passes (current-language) joint opts)
+ x cenv opts)
+ (lp (cons jexp exps) jenv jcenv))))))))))
(define* (compile x #:key
(env #f)
(from (current-language))
(to 'value)
(opts '()))
- (compile-fold (compile-passes from to opts)
- x
- env
- opts))
+ (receive (exp env cenv)
+ (compile-fold (compile-passes from to opts) x env opts)
+ exp))
\f
;;;
HCoop / bpt / guile.git / blobdiff