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;;; evaluation.scm -- evaluation, compilation and macro-expansion
;; Copyright (C) 2009, 2010 Jose Antonio Ortega Ruiz
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the Modified BSD License. You should
;; have received a copy of the license along with this program. If
;; not, see <http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5>.
;; Start date: Mon Mar 02, 2009 02:46
(define-module (geiser evaluation)
#:export (compile/warns
compile/no-warns
ge:macroexpand
ge:compile-file
ge:load-file
ge:set-warnings)
#:use-module (geiser modules)
#:use-module (srfi srfi-1)
#:use-module (language tree-il)
#:use-module (system base compile)
#:use-module (system base message)
#:use-module (system base pmatch)
#:use-module (system vm program)
#:use-module (ice-9 pretty-print))
(define (handle-error stack . args)
(pmatch args
((,key ,subr ,msg ,args . ,rest)
(display "Backtrace:\n")
(if (stack? stack)
(display-backtrace stack (current-output-port)))
(newline)
(display-error stack (current-output-port) subr msg args rest))
(else (display (format "ERROR: ~a, args: ~a" (car args) (cdr args)))))
`(error (key . ,(car args))))
(define (write-result result output)
(write (list (cons 'result result) (cons 'output output)))
(newline))
(define compile-opts (make-fluid))
(define compile-file-opts (make-fluid))
(define default-warnings '(arity-mismatch unbound-variable))
(define verbose-warnings `(unused-variable ,@default-warnings))
(define (ge:set-warnings wl)
(let* ((warns (cond ((list? wl) wl)
((symbol? wl) (case wl
((none nil null) '())
((medium default) default-warnings)
((high verbose) verbose-warnings)))
(else '())))
(fwarns (if (memq 'unused-variable warns)
(cons 'unused-toplevel warns)
warns)))
(fluid-set! compile-opts (list #:warnings warns))
(fluid-set! compile-file-opts (list #:warnings fwarns))))
(ge:set-warnings 'none)
(define (call-with-result thunk)
(letrec* ((result #f)
(output
(with-output-to-string
(lambda ()
(with-fluids ((*current-warning-port* (current-output-port)))
(set! result (thunk)))))))
(write-result result output)))
(define (compile/no-warns form module)
(with-fluids ((compile-opts '()))
(compile/warns form module)))
(define (compile/warns form module-name)
(let* ((module (or (find-module module-name) (current-module)))
(ev (lambda ()
(call-with-values
(lambda ()
(let* ((o (compile form
#:to 'objcode
#:env module
#:opts (fluid-ref compile-opts)))
(thunk (make-program o)))
(start-stack 'geiser-evaluation-stack
(eval `(,thunk) module))))
(lambda vs (map object->string vs))))))
(call-with-result ev)))
(define (ge:compile-file path)
(call-with-result
(lambda ()
(let ((cr (compile-file path
#:canonicalization 'absolute
#:opts (fluid-ref compile-file-opts))))
(and cr
(list (object->string (save-module-excursion
(lambda () (load-compiled cr))))))))))
(define ge:load-file ge:compile-file)
(define (ge:macroexpand form . all)
(let ((all (and (not (null? all)) (car all))))
(with-output-to-string
(lambda ()
(pretty-print (tree-il->scheme (macroexpand form)))))))
;;; evaluation.scm ends here
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