racket/collects/drracket/private/eval-helpers.rkt
2013-05-26 22:36:41 -05:00

146 lines
5.9 KiB
Racket

#lang racket/base
(require racket/class
racket/draw
racket/list
racket/set
compiler/cm
setup/dirs
planet/config
pkg/lib
(prefix-in *** '#%foreign) ;; just to make sure it is here
)
(provide set-basic-parameters/no-gui
set-module-language-parameters
(struct-out prefab-module-settings)
transform-module
get-init-dir)
;; get-init-dir : (or/c path? #f) -> path?
;; returns the initial directory for a program
;; that is saved in 'path/f' (with #f indicating
;; an unsaved file)
(define (get-init-dir path/f)
(cond
[path/f
(let-values ([(base name dir?) (split-path path/f)])
base)]
[else
(find-system-path 'home-dir)]))
(struct prefab-module-settings
(command-line-args
collection-paths
compilation-on?
full-trace?
annotations
enforce-module-constants)
#:prefab)
(define orig-namespace (current-namespace))
(define (set-basic-parameters/no-gui)
(let ([cust (current-custodian)])
(define (drracket-plain-exit-handler arg)
(custodian-shutdown-all cust))
(exit-handler drracket-plain-exit-handler))
(current-thread-group (make-thread-group))
(current-command-line-arguments #())
(current-pseudo-random-generator (make-pseudo-random-generator))
(current-evt-pseudo-random-generator (make-pseudo-random-generator))
(read-curly-brace-as-paren #t)
(read-square-bracket-as-paren #t)
(error-print-width 250)
(current-ps-setup (make-object ps-setup%))
(current-namespace (make-base-empty-namespace))
;; is this wise?
#;(namespace-attach-module orig-namespace ''#%foreign))
(define (set-module-language-parameters settings
module-language-parallel-lock-client
currently-open-files
#:use-use-current-security-guard? [use-current-security-guard? #f])
(current-command-line-arguments (prefab-module-settings-command-line-args settings))
(let* ([default (current-library-collection-paths)]
[cpaths (append-map (λ (x) (if (symbol? x) default (list x)))
(prefab-module-settings-collection-paths settings))])
(when (null? cpaths)
(eprintf "WARNING: your collection paths are empty!\n"))
(current-library-collection-paths cpaths))
(compile-context-preservation-enabled (prefab-module-settings-full-trace? settings))
(compile-enforce-module-constants (prefab-module-settings-enforce-module-constants settings))
(when (prefab-module-settings-compilation-on? settings)
(define open-pkgs
(for/fold ([s (set)]) ([path (in-list currently-open-files)])
(define pkg (path->pkg path))
(if (and pkg
(memq 'write
(file-or-directory-permissions (pkg-directory pkg))))
(set-add s pkg)
s)))
(for ([pkg (in-set open-pkgs)])
(log-info "DrRacket: enabling bytecode-file compilation for package ~s" pkg))
(define skip-path?
(let* ([cd (find-collects-dir)]
[no-dirs (if cd
(list (CACHE-DIR) cd)
(list (CACHE-DIR)))])
(λ (p) (or (file-stamp-in-paths p no-dirs)
(let ([pkg (path->pkg p)])
(and pkg
(not (set-member? open-pkgs pkg))
(file-stamp-in-paths p (list (pkg-directory pkg)))))))))
(define extra-compiled-file-path
(case (prefab-module-settings-annotations settings)
[(none) (build-path "compiled" "drracket")]
[(debug) (build-path "compiled" "drracket" "errortrace")]
[else #f]))
(when extra-compiled-file-path
;; Add extra compiled-file path:
(use-compiled-file-paths
(cons extra-compiled-file-path
(use-compiled-file-paths)))
;; If we ever skip a file, then don't use the extra compiled-file
;; path for the skipped file's dependencies (because modules
;; compiled against the non-DrRacket-generated bytecode might not
;; work with any DrRacket-generated bytecode that is sitting around):
(current-load/use-compiled
(let ([orig (current-load/use-compiled)])
(lambda (path mod-name)
(if (and (member extra-compiled-file-path (use-compiled-file-paths))
(skip-path? path))
(parameterize ([use-compiled-file-paths
(remove extra-compiled-file-path
(use-compiled-file-paths))])
(orig path mod-name))
(orig path mod-name))))))
;; Install the compilation manager:
(parallel-lock-client module-language-parallel-lock-client)
(current-load/use-compiled (make-compilation-manager-load/use-compiled-handler
#t
#:security-guard (and use-current-security-guard?
(current-security-guard))))
(manager-skip-file-handler skip-path?)))
(define (transform-module filename stx raise-hopeless-syntax-error)
(define-values (mod name lang body)
(syntax-case stx ()
[(module name lang . body)
(eq? 'module (syntax-e #'module))
(values #'module #'name #'lang #'body)]
[_ (raise-hopeless-syntax-error
(string-append "only a module expression is allowed, either\n"
" #lang <language-name>\n or\n"
" (module <name> <language> ...)\n")
stx)]))
(define name* (syntax-e name))
(unless (symbol? name*)
(raise-hopeless-syntax-error "bad syntax in name position of module"
stx name))
(let* (;; rewrite the module to use the racket/base version of `module'
[mod (datum->syntax #'here 'module mod)]
[expr (datum->syntax stx `(,mod ,name ,lang . ,body) stx stx)])
(values name lang expr)))