scsh-make/macros.scm

158 lines
4.8 KiB
Scheme

;;; MAKEFILE:
;;; =========
;;; (define-syntax makefile
;;; (syntax-rules ()
;;; ((makefile ?rule0 ...)
;;; (let ((rule-candidates '()))
;;; (let* ((rule-candidates (?rule0 rule-candidates))
;;; ...)
;;; rule-candidates)))))
;;;
;;; <makefile> ::= '(' + "makefile" + <makerule-clause>* + ')'
;;; <makerule-clause> ::= <rule-clause>
;;; | <md5-clause>
;;; | <always-clause>
;;; | <once-clause>
;;;
;;;
(define-syntax makefile
(syntax-rules ()
((makefile) (list))
((makefile ?rule0 ?rule1 ...) (?rule0 (makefile ?rule1 ...)))))
;;;
;;; <rule-clause>
;;;
;;; to achieve consistency only rule will use the rule-tmpvars
;;; macro directly and all other macros use this clause
;;;
(define-syntax makefile-rule
(syntax-rules ()
((makefile-rule ?target ?prereqs ?thunk) (rule ?target ?prereqs ?thunk))))
(define-syntax is-out-of-date?
(syntax-rules ()
((is-out-of-date? ?target ?prereqs ?thunk) (rule ?target ?prereqs ?thunk))))
(define-syntax rule
(syntax-rules ()
((rule ?target (?prereq0 ...) ?thunk)
(rule-tmpvars () ?target (?prereq0 ...) ?thunk))))
(define-syntax rule-tmpvars
(syntax-rules ()
((rule-tmpvars (tmp1 ...) ?target () ?thunk)
(let ((target ?target)
(prereqs (list tmp1 ...)))
(lambda (rule-candidates)
(cons (list target
prereqs
(make-is-out-of-date? target tmp1 ...)
(make-rule-build-func target prereqs ?thunk))
rule-candidates))))
((rule-tmpvars (tmp1 ...) ?target (?prereq0 ?prereq1 ...) ?thunk)
(let ((tmp2 ?prereq0))
(rule-tmpvars (tmp1 ... tmp2) ?target (?prereq1 ...) ?thunk)))))
;;;
;;; <md5-clause>
;;;
;;; to achieve consistency only rule-md5 will use the rule-md5-tmpvars
;;; macro directly and all other macros use this clause
;;;
(define-syntax md5
(syntax-rules ()
((md5 ?target ?prereqs ?thunk) (rule-md5 ?target ?prereqs ?thunk))))
(define-syntax rule-md5
(syntax-rules ()
((rule-md5 ?target (?prereq0 ...) ?thunk)
(rule-md5-tmpvars () ?target (?prereq0 ...) ?thunk))))
(define-syntax rule-md5-tmpvars
(syntax-rules ()
((rule-md5-tmpvars (tmp1 ...) ?target () ?thunk)
(let ((target ?target)
(prereqs (list tmp1 ...)))
(lambda (rule-candidates)
(cons (list target
prereqs
(make-md5-sum-changed? target tmp1 ...)
(make-md5-build-func target prereqs ?thunk))
rule-candidates))))
((rule-md5-tmpvars (tmp1 ...) ?target (?prereq0 ?prereq1 ...) ?thunk)
(let ((tmp2 ?prereq0))
(rule-md5-tmpvars (tmp1 ... tmp2) ?target (?prereq1 ...) ?thunk)))))
;;;
;;; <always-clause>
;;;
;;; to achieve consistency only rule-always will use the rule-always-tmpvars
;;; macro directly and all other macros use this clause
;;;
(define-syntax phony
(syntax-rules ()
((phony ?target ?prereqs ?thunk) (rule-always ?target ?prereqs ?thunk))))
(define-syntax always
(syntax-rules ()
((always ?target ?prereqs ?thunk) (rule-always ?target ?prereqs ?thunk))))
(define-syntax is-out-of-date!
(syntax-rules ()
((is-out-of-date! ?target ?prereqs ?thunk)
(rule-always ?target ?prereqs ?thunk))))
(define-syntax rule-always
(syntax-rules ()
((rule-always ?target (?prereq0 ...) ?thunk)
(rule-always-tmpvars () ?target (?prereq0 ...) ?thunk))))
(define-syntax rule-always-tmpvars
(syntax-rules ()
((rule-always-tmpvars (tmp1 ...) ?target () ?thunk)
(let ((target ?target)
(prereqs (list tmp1 ...)))
(lambda (rule-candidates)
(cons (list target
prereqs
(make-is-out-of-date! target tmp1 ...)
(make-always-build-func target prereqs ?thunk))
rule-candidates))))
((rule-always-tmpvars (tmp1 ...) ?target (?prereq0 ?prereq1 ...) ?thunk)
(let ((tmp2 ?prereq0))
(rule-always-tmpvars (tmp1 ... tmp2) ?target (?prereq1 ...) ?thunk)))))
;;;
;;; <once-clause>
;;;
;;; to achieve consistency only rule-once will use the rule-once-tmpvars
;;; macro directly and all other macros use this clause
;;;
(define-syntax once
(syntax-rules ()
((once ?target ?prereqs ?thunk)
(rule-once ?target ?prereqs ?thunk))))
(define-syntax rule-once
(syntax-rules ()
((rule-once ?target (?prereq0 ...) ?thunk)
(rule-once-tmpvars () ?target (?prereq0 ...) ?thunk))))
(define-syntax rule-once-tmpvars
(syntax-rules ()
((rule-once-tmpvars (tmp1 ...) ?target () ?thunk)
(let ((target ?target)
(prereqs (list tmp1 ...)))
(lambda (rule-candidates)
(cons (list target
prereqs
(make-once target tmp1 ...)
(make-once-build-func target prereqs ?thunk))
rule-candidates))))
((rule-once-tmpvars (tmp1 ...) ?target (?prereq0 ?prereq1 ...) ?thunk)
(let ((tmp2 ?prereq0))
(rule-once-tmpvars (tmp1 ... tmp2) ?target (?prereq1 ...) ?thunk)))))