mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-30 20:00:19 +02:00
b41b92c9d1
* module/system/base/compile.scm: Expect compile passes to produce three values, not two. The third is the "continuation environment", the environment that can be used to compile a subsequent expression from the same source language. For example, expansion-time side effects can set the current module, which would be reflected appropriately in the continuation environment. * module/language/assembly/compile-bytecode.scm: * module/language/bytecode/spec.scm: * module/language/ecmascript/compile-ghil.scm: * module/language/ghil/compile-glil.scm: * module/language/glil/spec.scm: * module/language/objcode/spec.scm: * module/language/scheme/compile-ghil.scm: * module/system/base/compile.scm: Update compile passes to return a continuation environment.
573 lines
24 KiB
Scheme
573 lines
24 KiB
Scheme
;;; ECMAScript for Guile
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;; Copyright (C) 2009 Free Software Foundation, Inc.
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Code:
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(define-module (language ecmascript compile-ghil)
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#:use-module (language ghil)
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#:use-module (ice-9 receive)
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#:use-module (system base pmatch)
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#:export (compile-ghil))
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(define-macro (-> form)
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`(,(symbol-append 'make-ghil- (car form)) e l . ,(cdr form)))
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(define-macro (@implv sym)
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`(-> (ref (ghil-var-at-module! e '(language ecmascript impl) ',sym #t))))
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(define-macro (@impl sym args)
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`(-> (call (@implv ,sym) ,args)))
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(define (compile-ghil exp env opts)
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(values
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(call-with-ghil-environment (make-ghil-toplevel-env) '()
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(lambda (e vars)
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(let ((l #f))
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(-> (lambda vars #f '()
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(-> (begin (list (@impl js-init '())
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(comp exp e)))))))))
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env
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env))
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(define (location x)
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(and (pair? x)
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(let ((props (source-properties x)))
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(and (not (null? props))
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props))))
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;; The purpose, you ask? To avoid non-tail recursion when expanding a
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;; long pmatch sequence.
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(define-macro (ormatch x . clauses)
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(let ((X (gensym)))
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`(let ((,X ,x))
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(or ,@(map (lambda (c)
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(if (eq? (car c) 'else)
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`(begin . ,(cdr c))
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`(pmatch ,X ,c (else #f))))
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clauses)))))
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(define (comp x e)
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(let ((l (location x)))
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(define (let1 what proc)
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(call-with-ghil-bindings e '(%tmp)
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(lambda (vars)
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(-> (bind vars (list what)
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(proc (car vars)))))))
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(define (begin1 what proc)
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(call-with-ghil-bindings e '(%tmp)
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(lambda (vars)
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(-> (bind vars (list what)
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(-> (begin (list (proc (car vars))
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(-> (ref (car vars)))))))))))
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(ormatch x
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(null
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;; FIXME, null doesn't have much relation to EOL...
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(-> (quote '())))
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(true
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(-> (quote #t)))
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(false
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(-> (quote #f)))
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((number ,num)
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(-> (quote num)))
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((string ,str)
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(-> (quote str)))
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(this
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(@impl get-this '()))
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((+ ,a)
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(-> (inline 'add
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(list (@impl ->number (list (comp a e)))
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(-> (quote 0))))))
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((- ,a)
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(-> (inline 'sub (list (-> (quote 0)) (comp a e)))))
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((~ ,a)
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(@impl bitwise-not (list (comp a e))))
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((! ,a)
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(@impl logical-not (list (comp a e))))
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((+ ,a ,b)
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(-> (inline 'add (list (comp a e) (comp b e)))))
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((- ,a ,b)
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(-> (inline 'sub (list (comp a e) (comp b e)))))
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((/ ,a ,b)
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(-> (inline 'div (list (comp a e) (comp b e)))))
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((* ,a ,b)
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(-> (inline 'mul (list (comp a e) (comp b e)))))
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((% ,a ,b)
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(@impl mod (list (comp a e) (comp b e))))
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((<< ,a ,b)
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(@impl shift (list (comp a e) (comp b e))))
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((>> ,a ,b)
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(@impl shift (list (comp a e) (comp `(- ,b) e))))
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((< ,a ,b)
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(-> (inline 'lt? (list (comp a e) (comp b e)))))
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((<= ,a ,b)
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(-> (inline 'le? (list (comp a e) (comp b e)))))
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((> ,a ,b)
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(-> (inline 'gt? (list (comp a e) (comp b e)))))
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((>= ,a ,b)
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(-> (inline 'ge? (list (comp a e) (comp b e)))))
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((in ,a ,b)
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(@impl has-property? (list (comp a e) (comp b e))))
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((== ,a ,b)
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(-> (inline 'equal? (list (comp a e) (comp b e)))))
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((!= ,a ,b)
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(-> (inline 'not
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(list (-> (inline 'equal?
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(list (comp a e) (comp b e))))))))
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((=== ,a ,b)
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(-> (inline 'eqv? (list (comp a e) (comp b e)))))
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((!== ,a ,b)
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(-> (inline 'not
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(list (-> (inline 'eqv?
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(list (comp a e) (comp b e))))))))
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((& ,a ,b)
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(@impl band (list (comp a e) (comp b e))))
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((^ ,a ,b)
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(@impl bxor (list (comp a e) (comp b e))))
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((bor ,a ,b)
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(@impl bior (list (comp a e) (comp b e))))
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((and ,a ,b)
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(-> (and (list (comp a e) (comp b e)))))
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((or ,a ,b)
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(-> (or (list (comp a e) (comp b e)))))
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((if ,test ,then ,else)
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(-> (if (@impl ->boolean (list (comp test e)))
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(comp then e)
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(comp else e))))
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((if ,test ,then ,else)
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(-> (if (@impl ->boolean (list (comp test e)))
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(comp then e)
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(@implv *undefined*))))
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((postinc (ref ,foo))
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(begin1 (comp `(ref ,foo) e)
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(lambda (var)
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(-> (set (ghil-var-for-set! e foo)
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(-> (inline 'add
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(list (-> (ref var))
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(-> (quote 1))))))))))
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((postinc (pref ,obj ,prop))
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(let1 (comp obj e)
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(lambda (objvar)
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(begin1 (@impl pget
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(list (-> (ref objvar))
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(-> (quote prop))))
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(lambda (tmpvar)
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(@impl pput
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(list (-> (ref objvar))
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(-> (quote prop))
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(-> (inline 'add
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(list (-> (ref tmpvar))
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(-> (quote 1))))))))))))
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((postinc (aref ,obj ,prop))
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(let1 (comp obj e)
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(lambda (objvar)
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(let1 (comp prop e)
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(lambda (propvar)
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(begin1 (@impl pget
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(list (-> (ref objvar))
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(-> (ref propvar))))
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(lambda (tmpvar)
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(@impl pput
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(list (-> (ref objvar))
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(-> (ref propvar))
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(-> (inline 'add
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(list (-> (ref tmpvar))
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(-> (quote 1))))))))))))))
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((postdec (ref ,foo))
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(begin1 (comp `(ref ,foo) e)
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(lambda (var)
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(-> (set (ghil-var-for-set! e foo)
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(-> (inline 'sub
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(list (-> (ref var))
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(-> (quote 1))))))))))
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((postdec (pref ,obj ,prop))
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(let1 (comp obj e)
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(lambda (objvar)
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(begin1 (@impl pget
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(list (-> (ref objvar))
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(-> (quote prop))))
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(lambda (tmpvar)
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(@impl pput
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(list (-> (ref objvar))
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(-> (quote prop))
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(-> (inline 'sub
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(list (-> (ref tmpvar))
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(-> (quote 1))))))))))))
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((postdec (aref ,obj ,prop))
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(let1 (comp obj e)
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(lambda (objvar)
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(let1 (comp prop e)
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(lambda (propvar)
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(begin1 (@impl pget
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(list (-> (ref objvar))
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(-> (ref propvar))))
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(lambda (tmpvar)
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(@impl pput
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(list (-> (ref objvar))
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(-> (ref propvar))
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(-> (inline
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'sub (list (-> (ref tmpvar))
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(-> (quote 1))))))))))))))
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((preinc (ref ,foo))
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(let ((v (ghil-var-for-set! e foo)))
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(-> (begin
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(list
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(-> (set v
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(-> (inline 'add
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(list (-> (ref v))
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(-> (quote 1)))))))
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(-> (ref v)))))))
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((preinc (pref ,obj ,prop))
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(let1 (comp obj e)
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(lambda (objvar)
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(begin1 (-> (inline 'add
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(list (@impl pget
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(list (-> (ref objvar))
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(-> (quote prop))))
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(-> (quote 1)))))
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(lambda (tmpvar)
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(@impl pput (list (-> (ref objvar))
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(-> (quote prop))
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(-> (ref tmpvar)))))))))
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((preinc (aref ,obj ,prop))
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(let1 (comp obj e)
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(lambda (objvar)
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(let1 (comp prop e)
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(lambda (propvar)
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(begin1 (-> (inline 'add
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(list (@impl pget
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(list (-> (ref objvar))
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(-> (ref propvar))))
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(-> (quote 1)))))
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(lambda (tmpvar)
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(@impl pput
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(list (-> (ref objvar))
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(-> (ref propvar))
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(-> (ref tmpvar)))))))))))
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((predec (ref ,foo))
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(let ((v (ghil-var-for-set! e foo)))
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(-> (begin
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(list
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(-> (set v
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(-> (inline 'sub
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(list (-> (ref v))
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(-> (quote 1)))))))
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(-> (ref v)))))))
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((predec (pref ,obj ,prop))
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(let1 (comp obj e)
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(lambda (objvar)
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(begin1 (-> (inline 'sub
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(list (@impl pget
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(list (-> (ref objvar))
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(-> (quote prop))))
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(-> (quote 1)))))
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(lambda (tmpvar)
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(@impl pput
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(list (-> (ref objvar))
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(-> (quote prop))
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(-> (ref tmpvar)))))))))
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((predec (aref ,obj ,prop))
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(let1 (comp obj e)
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(lambda (objvar)
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(let1 (comp prop e)
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(lambda (propvar)
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(begin1 (-> (inline 'sub
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(list (@impl pget
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(list (-> (ref objvar))
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(-> (ref propvar))))
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(-> (quote 1)))))
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(lambda (tmpvar)
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(@impl pput
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(list (-> (ref objvar))
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(-> (ref propvar))
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(-> (ref tmpvar)))))))))))
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((ref ,id)
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(-> (ref (ghil-var-for-ref! e id))))
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((var . ,forms)
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(-> (begin
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(map (lambda (form)
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(pmatch form
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((,x ,y)
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(-> (define (ghil-var-define! (ghil-env-parent e) x)
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(comp y e))))
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((,x)
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(-> (define (ghil-var-define! (ghil-env-parent e) x)
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(@implv *undefined*))))
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(else (error "bad var form" form))))
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forms))))
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((begin . ,forms)
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(-> (begin
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(map (lambda (x) (comp x e)) forms))))
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((lambda ,formals ,body)
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(call-with-ghil-environment e '(%args)
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(lambda (e vars)
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(-> (lambda vars #t '()
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(comp-body env l body formals '%args))))))
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((call/this ,obj ,prop ,args)
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(@impl call/this*
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(list obj
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(-> (lambda '() #f '()
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(-> (call (@impl pget (list obj prop))
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args)))))))
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((call (pref ,obj ,prop) ,args)
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(comp `(call/this ,(comp obj e)
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,(-> (quote prop))
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,(map (lambda (x) (comp x e)) args))
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e))
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((call (aref ,obj ,prop) ,args)
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(comp `(call/this ,(comp obj e)
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,(comp prop e)
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,(map (lambda (x) (comp x e)) args))
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e))
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((call ,proc ,args)
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(-> (call (comp proc e)
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(map (lambda (x) (comp x e)) args))))
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((return ,expr)
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(-> (inline 'return
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(list (comp expr e)))))
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((array . ,args)
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(@impl new-array
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(map (lambda (x) (comp x e)) args)))
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((object . ,args)
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(@impl new-object
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(map (lambda (x)
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(pmatch x
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((,prop ,val)
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(-> (inline 'cons
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(list (-> (quote prop))
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(comp val e)))))
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(else
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(error "bad prop-val pair" x))))
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args)))
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((pref ,obj ,prop)
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(@impl pget
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(list (comp obj e)
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(-> (quote prop)))))
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((aref ,obj ,index)
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(@impl pget
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(list (comp obj e)
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(comp index e))))
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((= (ref ,name) ,val)
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(let ((v (ghil-var-for-set! e name)))
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(-> (begin
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(list (-> (set v (comp val e)))
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(-> (ref v)))))))
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((= (pref ,obj ,prop) ,val)
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(@impl pput
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(list (comp obj e)
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(-> (quote prop))
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(comp val e))))
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((= (aref ,obj ,prop) ,val)
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(@impl pput
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(list (comp obj e)
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(comp prop e)
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(comp val e))))
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((+= ,what ,val)
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(comp `(= ,what (+ ,what ,val)) e))
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((-= ,what ,val)
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(comp `(= ,what (- ,what ,val)) e))
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((/= ,what ,val)
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(comp `(= ,what (/ ,what ,val)) e))
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((*= ,what ,val)
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(comp `(= ,what (* ,what ,val)) e))
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((%= ,what ,val)
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(comp `(= ,what (% ,what ,val)) e))
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((>>= ,what ,val)
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(comp `(= ,what (>> ,what ,val)) e))
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((<<= ,what ,val)
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(comp `(= ,what (<< ,what ,val)) e))
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((>>>= ,what ,val)
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(comp `(= ,what (>>> ,what ,val)) e))
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((&= ,what ,val)
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(comp `(= ,what (& ,what ,val)) e))
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((bor= ,what ,val)
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(comp `(= ,what (bor ,what ,val)) e))
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((^= ,what ,val)
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(comp `(= ,what (^ ,what ,val)) e))
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((new ,what ,args)
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(@impl new
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(map (lambda (x) (comp x e))
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(cons what args))))
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((delete (pref ,obj ,prop))
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(@impl pdel
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(list (comp obj e)
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(-> (quote prop)))))
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((delete (aref ,obj ,prop))
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(@impl pdel
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(list (comp obj e)
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(comp prop e))))
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((void ,expr)
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(-> (begin
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(list (comp expr e)
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(@implv *undefined*)))))
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((typeof ,expr)
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(@impl typeof
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(list (comp expr e))))
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((do ,statement ,test)
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(call-with-ghil-bindings e '(%loop %continue)
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(lambda (vars)
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(-> (bind vars
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(list (call-with-ghil-environment e '()
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(lambda (e _)
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(-> (lambda '() #f '()
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(-> (begin
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(list (comp statement e)
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(-> (call
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(-> (ref (ghil-var-for-ref! e '%continue)))
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'())))))))))
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(call-with-ghil-environment e '()
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(lambda (e _)
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(-> (lambda '() #f '()
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(-> (if (@impl ->boolean (list (comp test e)))
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(-> (call
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(-> (ref (ghil-var-for-ref! e '%loop)))
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'()))
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(@implv *undefined*))))))))
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(-> (call (-> (ref (car vars))) '())))))))
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((while ,test ,statement)
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(call-with-ghil-bindings e '(%continue)
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(lambda (vars)
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(-> (begin
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(list
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(-> (set (car vars)
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(call-with-ghil-environment e '()
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(lambda (e _)
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(-> (lambda '() #f '()
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(-> (if (@impl ->boolean (list (comp test e)))
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(-> (begin
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(list (comp statement e)
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(-> (call
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(-> (ref (ghil-var-for-ref! e '%continue)))
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'())))))
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(@implv *undefined*)))))))))
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(-> (call (-> (ref (car vars))) '()))))))))
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((for ,init ,test ,inc ,statement)
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(call-with-ghil-bindings e '(%continue)
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(lambda (vars)
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(-> (begin
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(list
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(comp (or init '(begin)) e)
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(-> (set (car vars)
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(call-with-ghil-environment e '()
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(lambda (e _)
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(-> (lambda '() #f '()
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(-> (if (if test
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(@impl ->boolean (list (comp test e)))
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(comp 'true e))
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(-> (begin
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(list (comp statement e)
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(comp (or inc '(begin)) e)
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(-> (call
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(-> (ref (ghil-var-for-ref! e '%continue)))
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'())))))
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(@implv *undefined*)))))))))
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(-> (call (-> (ref (car vars))) '()))))))))
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((for-in ,var ,object ,statement)
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(call-with-ghil-bindings e '(%continue %enum)
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(lambda (vars)
|
|
(-> (begin
|
|
(list
|
|
(-> (set (car vars)
|
|
(call-with-ghil-environment e '()
|
|
(lambda (e _)
|
|
(-> (lambda '() #f '()
|
|
(-> (if (@impl ->boolean
|
|
(list (@impl pget
|
|
(list (-> (ref (ghil-var-for-ref! e '%enum)))
|
|
(-> (quote 'length))))))
|
|
(-> (begin
|
|
(list
|
|
(comp `(= ,var (call/this ,(-> (ref (ghil-var-for-ref! e '%enum)))
|
|
,(-> (quote 'pop))
|
|
()))
|
|
e)
|
|
(comp statement e)
|
|
(-> (call (-> (ref (ghil-var-for-ref! e '%continue)))
|
|
'())))))
|
|
(@implv *undefined*)))))))))
|
|
(-> (set (cadr vars)
|
|
(@impl make-enumerator (list (comp object e)))))
|
|
(-> (call (-> (ref (car vars))) '()))))))))
|
|
((break)
|
|
(let ((var (ghil-var-for-ref! e '%continue)))
|
|
(if (and (ghil-env? (ghil-var-env var))
|
|
(eq? (ghil-var-env var) (ghil-env-parent e)))
|
|
(-> (inline 'return (@implv *undefined*)))
|
|
(error "bad break, yo"))))
|
|
((continue)
|
|
(let ((var (ghil-var-for-ref! e '%continue)))
|
|
(if (and (ghil-env? (ghil-var-env var))
|
|
(eq? (ghil-var-env var) (ghil-env-parent e)))
|
|
(-> (inline 'goto/args (list (-> (ref var)))))
|
|
(error "bad continue, yo"))))
|
|
((block ,x)
|
|
(comp x e))
|
|
(else
|
|
(error "compilation not yet implemented:" x)))))
|
|
|
|
(define (comp-body e l body formals %args)
|
|
(define (process)
|
|
(let lp ((in body) (out '()) (rvars (reverse formals)))
|
|
(pmatch in
|
|
(((var (,x) . ,morevars) . ,rest)
|
|
(lp `((var . ,morevars) . ,rest)
|
|
out
|
|
(if (memq x rvars) rvars (cons x rvars))))
|
|
(((var (,x ,y) . ,morevars) . ,rest)
|
|
(lp `((var . ,morevars) . ,rest)
|
|
`((= (ref ,x) ,y) . ,out)
|
|
(if (memq x rvars) rvars (cons x rvars))))
|
|
(((var) . ,rest)
|
|
(lp rest out rvars))
|
|
((,x . ,rest) (guard (and (pair? x) (eq? (car x) 'lambda)))
|
|
(lp rest
|
|
(cons x out)
|
|
rvars))
|
|
((,x . ,rest) (guard (pair? x))
|
|
(receive (sub-out rvars)
|
|
(lp x '() rvars)
|
|
(lp rest
|
|
(cons sub-out out)
|
|
rvars)))
|
|
((,x . ,rest)
|
|
(lp rest
|
|
(cons x out)
|
|
rvars))
|
|
(()
|
|
(values (reverse! out)
|
|
rvars)))))
|
|
(receive (out rvars)
|
|
(process)
|
|
(call-with-ghil-bindings e (reverse rvars)
|
|
(lambda (vars)
|
|
(let ((%argv (assq-ref (ghil-env-table e) %args)))
|
|
(-> (begin
|
|
`(,@(map
|
|
(lambda (f)
|
|
(-> (if (-> (inline 'null?
|
|
(list (-> (ref %argv)))))
|
|
(-> (begin '()))
|
|
(-> (begin
|
|
(list (-> (set (ghil-var-for-ref! e f)
|
|
(-> (inline 'car
|
|
(list (-> (ref %argv)))))))
|
|
(-> (set %argv
|
|
(-> (inline 'cdr
|
|
(list (-> (ref %argv)))))))))))))
|
|
formals)
|
|
;; fixme: here check for too many args
|
|
,(comp out e)))))))))
|