* module/ice-9/r6rs-libraries.scm
(resolve-r6rs-interface <srfi-name?>: Relax symbol requirements.
Return a symbol.
<import-spec>: Add a new syntax matching clause to avoid stripping the
3rd identifier in a R7RS SRFI module name.
(library): Move R7RS specifics to...
* module/ice-9/r7rs-libraries.scm (define-library): ... here.
<r7rs-name->r6rs-name, r7rs-import->r6rs-import>: New nested procedures,
used to translate the library name and import sets.
* test-suite/tests/rnrs-libraries.test ("import features")
<"renaming works">: Extend test.
<"import works">: New test.Fixes: https://bugs.gnu.org/67412 --- Changes in v2: - Leave/improve some R7RS SRFI handling in r6rs-libraries, for 'import' - New 'import' test module/ice-9/r6rs-libraries.scm | 86 ++++++++-------------------- module/ice-9/r7rs-libraries.scm | 48 +++++++++++++++- test-suite/tests/rnrs-libraries.test | 12 +++- 3 files changed, 81 insertions(+), 65 deletions(-) diff --git a/module/ice-9/r6rs-libraries.scm b/module/ice-9/r6rs-libraries.scm index f27b07841..f02b13516 100644 --- a/module/ice-9/r6rs-libraries.scm +++ b/module/ice-9/r6rs-libraries.scm @@ -44,9 +44,9 @@ (define (srfi-name? stx) (syntax-case stx (srfi) ((srfi n rest ...) - (and (and-map sym? #'(rest ...)) - (or (n? #'n) - (colon-n? #'n)))) + (cond ((n? #'n) 'r7rs) + ((colon-n? #'n) 'r6rs) + (else #f))) (_ #f))) (define (module-name? stx) @@ -85,10 +85,19 @@ (module-and-uses mod))) (syntax-case import-spec (library only except prefix rename srfi) - ;; (srfi :n ...) -> (srfi srfi-n ...) + ;; XXX: This is R7RS-specific, but it's here since we want the + ;; `import' procedure below to accept (srfi 64) as well as + ;; (srfi :64). + ;; ;; (srfi n ...) -> (srfi srfi-n ...) ((library (srfi n rest ... (version ...))) - (srfi-name? #'(srfi n rest ...)) + (eq? 'r7rs (srfi-name? #'(srfi n rest ...))) + (let ((srfi-n (make-srfi-n #'srfi #'n))) + (resolve-r6rs-interface + #`(library (srfi #,srfi-n rest ... (version ...)))))) + ;; (srfi :n ...) -> (srfi srfi-n ...) + ((library (srfi n rest ... (version ...))) + (eq? 'r6rs (srfi-name? #'(srfi n rest ...))) (let ((srfi-n (make-srfi-n #'srfi #'n))) (resolve-r6rs-interface (syntax-case #'(rest ...) () @@ -98,7 +107,7 @@ ;; SRFI 97 says that the first identifier after the `n' ;; is used for the libraries name, so it must be ignored. #`(library (srfi #,srfi-n rest ... (version ...)))))))) - + ((library (name name* ... (version ...))) (and-map sym? #'(name name* ...)) (resolve-interface (syntax->datum #'(name name* ...)) @@ -107,7 +116,7 @@ ((library (name name* ...)) (and-map sym? #'(name name* ...)) (resolve-r6rs-interface #'(library (name name* ... ())))) - + ((only import-set identifier ...) (and-map sym? #'(identifier ...)) (let* ((mod (resolve-r6rs-interface #'import-set)) @@ -121,7 +130,7 @@ (hashq-set! (module-replacements iface) sym #t))) (syntax->datum #'(identifier ...))) iface)) - + ((except import-set identifier ...) (and-map sym? #'(identifier ...)) (let* ((mod (resolve-r6rs-interface #'import-set)) @@ -182,7 +191,7 @@ (module-remove! iface from) (hashq-remove! replacements from) (lp (cdr in) (cons (vector to replace? var) out)))))))) - + ((name name* ... (version ...)) (module-name? #'(name name* ...)) (resolve-r6rs-interface #'(library (name name* ... (version ...))))) @@ -196,45 +205,11 @@ (define (sym? stx) (symbol? (syntax->datum stx))) - (define (n? stx) - (let ((n (syntax->datum stx))) - (and (exact-integer? n) - (not (negative? n))))) - - (define (colon-n? x) - (let ((sym (syntax->datum x))) - (and (symbol? sym) - (let ((str (symbol->string sym))) - (and (string-prefix? ":" str) - (let ((num (string->number (substring str 1)))) - (and (exact-integer? num) - (not (negative? num))))))))) - - (define (srfi-name? stx) - (syntax-case stx (srfi) - ((srfi n rest ...) - (and (and-map sym? #'(rest ...)) - (or (n? #'n) - (colon-n? #'n)))) - (_ #f))) - (define (module-name? stx) - (or (srfi-name? stx) - (syntax-case stx () - ((name name* ...) - (and-map sym? #'(name name* ...))) - (_ #f)))) - - (define (make-srfi-n context n) - (datum->syntax - context - (string->symbol - (string-append - "srfi-" - (let ((n (syntax->datum n))) - (if (symbol? n) - (substring (symbol->string n) 1) - (number->string n))))))) + (syntax-case stx () + ((name name* ...) + (and-map sym? #'(name name* ...))) + (_ #f))) (define (compute-exports ifaces specs) (define (re-export? sym) @@ -282,17 +257,6 @@ (import ispec ...) body ...)) - ((_ (srfi n rest ... (version ...)) - (export espec ...) - (import ispec ...) - body ...) - (srfi-name? #'(srfi n rest ...)) - (let ((srfi-n (make-srfi-n #'srfi #'n))) - #`(library (srfi #,srfi-n rest ... (version ...)) - (export espec ...) - (import ispec ...) - body ...))) - ((_ (name name* ... (version ...)) (export espec ...) (import ispec ...) @@ -328,7 +292,7 @@ (export! x ...) (@@ @@ (name name* ...) body) ...)))))))) - + (define-syntax import (lambda (stx) (define (strip-for import-set) @@ -343,7 +307,7 @@ #'(eval-when (expand load eval) (let ((iface (resolve-r6rs-interface 'library-reference))) (call-with-deferred-observers - (lambda () - (module-use-interfaces! (current-module) (list iface))))) + (lambda () + (module-use-interfaces! (current-module) (list iface))))) ... (if #f #f))))))) diff --git a/module/ice-9/r7rs-libraries.scm b/module/ice-9/r7rs-libraries.scm index 429d82ad9..c6f70d73f 100644 --- a/module/ice-9/r7rs-libraries.scm +++ b/module/ice-9/r7rs-libraries.scm @@ -103,12 +103,56 @@ #'(rename (from-identifier to-identifier))) (identifier #'identifier))) + (define (r7rs-name->r6rs-name name) + ;; This is a hack to support (srfi N x ...) modules in R7RS. The + ;; longer term solution would be to add support at the level of + ;; resolve-interface (bug #40371). + (define (n? stx) + (let ((n (syntax->datum stx))) + (and (exact-integer? n) + (not (negative? n))))) + + (define (srfi-name? stx) + (syntax-case stx (srfi) + ((srfi n rest ...) + (n? #'n)) + (_ #f))) + + (define (make-srfi-n context n) + (datum->syntax + context + (string->symbol + (string-append + "srfi-" + (let ((n (syntax->datum n))) + (number->string n)))))) + + (syntax-case name (srfi) + ;; (srfi n ...) -> (srfi srfi-n ...) + ((srfi n rest ...) (srfi-name? #'(srfi n rest ...)) + #`(srfi #,(make-srfi-n #'srfi #'n) rest ...)) + (_ name))) + + (define (r7rs-import->r6rs-import import-set) + ;; Normalize SRFI names. + (syntax-case import-set (only except prefix rename) + ((only import-set identifier ...) + #`(only #,(r7rs-import->r6rs-import #'import-set) identifier ...)) + ((except import-set identifier ...) + #`(except #,(r7rs-import->r6rs-import #'import-set) identifier ...)) + ((prefix import-set identifier ...) + #`(prefix #,(r7rs-import->r6rs-import #'import-set) identifier ...)) + ((rename import-set (from-identifier to-identifier) ...) + #`(rename #,(r7rs-import->r6rs-import #'import-set) + (from-identifier to-identifier) ...)) + (_ (r7rs-name->r6rs-name import-set)))) + (syntax-case stx () ((_ name decl ...) (call-with-values (lambda () (partition-decls #'(decl ...) '() '() '())) (lambda (exports imports code) - #`(library name + #`(library #,(r7rs-name->r6rs-name #'name) (export . #,(map r7rs-export->r6rs-export exports)) - (import . #,imports) + (import . #,(map r7rs-import->r6rs-import imports)) . #,code))))))) diff --git a/test-suite/tests/rnrs-libraries.test b/test-suite/tests/rnrs-libraries.test index 86035e508..0fa7acb5c 100644 --- a/test-suite/tests/rnrs-libraries.test +++ b/test-suite/tests/rnrs-libraries.test @@ -205,9 +205,17 @@ (with-test-prefix "srfi" (pass-if "renaming works" (eq? (resolve-interface '(srfi srfi-1)) - (resolve-r6rs-interface '(srfi :1))) + (resolve-r6rs-interface '(srfi :1)) + (resolve-r6rs-interface '(srfi 1))) (eq? (resolve-interface '(srfi srfi-1)) - (resolve-r6rs-interface '(srfi :1 lists))))) + (resolve-r6rs-interface '(srfi :1 lists)) + (resolve-r6rs-interface '(srfi 1)))) + + (pass-if "import works" + (import (srfi srfi-1)) + (import (srfi :1)) + (import (srfi 1)) + #t)) (with-test-prefix "macro" (pass-if "multiple clauses" -- 2.41.0
