b358fe6502
* module/language/ecmascript/base.scm: Implement some more robust property getters that convert strings to symbols. Implement has-property?. * module/language/ecmascript/compile-ghil.scm (comp): Implement lots more mathematical operators. We now do all expressions; on to statements. * module/language/ecmascript/impl.scm: Define some math helpers. They probably need to call ->number on some things. * module/language/ecmascript/parse.scm (parse-ecmascript): Fix a typo.
429 lines
18 KiB
Scheme
429 lines
18 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 (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 (env vars)
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(make-ghil-lambda env #f vars #f '() (comp exp 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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(define-macro (@implv e l sym)
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`(make-ghil-ref ,e ,l
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(ghil-var-at-module! ,e '(language ecmascript impl) ',sym #t)))
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(define-macro (@impl e l sym args)
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`(make-ghil-call ,e ,l
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(@implv ,e ,l ,sym)
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,args))
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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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(make-ghil-begin e l (list (make-ghil-set e l (car vars) 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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(make-ghil-begin e l (list (make-ghil-set e l (car vars) what)
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(proc (car vars))
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(make-ghil-ref e l (car vars)))))))
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(pmatch x
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(null
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;; FIXME, null doesn't have much relation to EOL...
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(make-ghil-quote e l '()))
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(true
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(make-ghil-quote e l #t))
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(false
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(make-ghil-quote e l #f))
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((number ,num)
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(make-ghil-quote e l num))
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((string ,str)
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(make-ghil-quote e l str))
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(this
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(@impl e l get-this '()))
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((+ ,a)
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(make-ghil-inline e l 'add (list (comp a e) (make-ghil-quote e l 0))))
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((- ,a)
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(make-ghil-inline e l 'sub (list (make-ghil-quote e l 0) (comp a e))))
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((~ ,a)
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(@impl e l bitwise-not (list (comp a e))))
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((! ,a)
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(@impl e l logical-not (list (comp a e))))
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((+ ,a ,b)
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(make-ghil-inline e l 'add (list (comp a e) (comp b e))))
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((- ,a ,b)
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(make-ghil-inline e l 'sub (list (comp a e) (comp b e))))
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((/ ,a ,b)
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(make-ghil-inline e l 'div (list (comp a e) (comp b e))))
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((* ,a ,b)
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(make-ghil-inline e l 'mul (list (comp a e) (comp b e))))
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((% ,a ,b)
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(@impl e l mod (list (comp a e) (comp b e))))
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((<< ,a ,b)
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(@impl e l shift (list (comp a e) (comp b e))))
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((>> ,a ,b)
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(@impl e l shift (list (comp a e) (comp `(- ,b) e))))
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((< ,a ,b)
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(make-ghil-inline e l 'lt? (list (comp a e) (comp b e))))
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((<= ,a ,b)
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(make-ghil-inline e l 'le? (list (comp a e) (comp b e))))
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((> ,a ,b)
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(make-ghil-inline e l 'gt? (list (comp a e) (comp b e))))
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((>= ,a ,b)
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(make-ghil-inline e l 'ge? (list (comp a e) (comp b e))))
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((in ,a ,b)
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(@impl e l has-property? (list (comp a e) (comp b e))))
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((== ,a ,b)
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(make-ghil-inline e l 'equal? (list (comp a e) (comp b e))))
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((!= ,a ,b)
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(make-ghil-inline e l 'not
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(list
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(make-ghil-inline e l 'equal?
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(list (comp a e) (comp b e))))))
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((=== ,a ,b)
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(make-ghil-inline e l 'eqv? (list (comp a e) (comp b e))))
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((!== ,a ,b)
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(make-ghil-inline e l 'not
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(list
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(make-ghil-inline e l 'eqv?
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(list (comp a e) (comp b e))))))
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((& ,a ,b)
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(@impl e l band (list (comp a e) (comp b e))))
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((^ ,a ,b)
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(@impl e l bxor (list (comp a e) (comp b e))))
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((bor ,a ,b)
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(@impl e l bior (list (comp a e) (comp b e))))
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((and ,a ,b)
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(make-ghil-and e l (list (comp a e) (comp b e))))
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((or ,a ,b)
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(make-ghil-or e l (list (comp a e) (comp b e))))
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((if ,test ,then ,else)
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(make-ghil-if e l (comp test e) (comp then e) (comp else e)))
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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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(make-ghil-set e l (ghil-var-for-set! e foo)
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(make-ghil-inline
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e l 'add (list (make-ghil-ref e l var)
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(make-ghil-quote e l 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 e l pget (list (make-ghil-ref e l objvar)
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(make-ghil-quote e l prop)))
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(lambda (tmpvar)
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(@impl e l pput
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(list (make-ghil-ref e l objvar)
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(make-ghil-quote e l prop)
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(make-ghil-inline
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e l 'add (list (make-ghil-ref e l tmpvar)
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(make-ghil-quote e l 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 e l pget (list (make-ghil-ref e l objvar)
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(make-ghil-ref e l propvar)))
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(lambda (tmpvar)
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(@impl e l pput
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(list (make-ghil-ref e l objvar)
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(make-ghil-ref e l propvar)
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(make-ghil-inline
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e l 'add (list (make-ghil-ref e l tmpvar)
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(make-ghil-quote e l 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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(make-ghil-set e l (ghil-var-for-set! e foo)
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(make-ghil-inline
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e l 'sub (list (make-ghil-ref e l var)
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(make-ghil-quote e l 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 e l pget (list (make-ghil-ref e l objvar)
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(make-ghil-quote e l prop)))
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(lambda (tmpvar)
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(@impl e l pput
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(list (make-ghil-ref e l objvar)
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(make-ghil-quote e l prop)
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(make-ghil-inline
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e l 'sub (list (make-ghil-ref e l tmpvar)
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(make-ghil-quote e l 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 e l pget (list (make-ghil-ref e l objvar)
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(make-ghil-ref e l propvar)))
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(lambda (tmpvar)
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(@impl e l pput
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(list (make-ghil-ref e l objvar)
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(make-ghil-ref e l propvar)
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(make-ghil-inline
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e l 'sub (list (make-ghil-ref e l tmpvar)
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(make-ghil-quote e l 1))))))))))))
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((preinc (ref ,foo))
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(let ((v (ghil-var-for-set! e foo)))
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(make-ghil-begin
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e l (list
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(make-ghil-set e l v (make-ghil-inline
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e l 'add (list (make-ghil-ref e l v)
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(make-ghil-quote e l 1))))
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(make-ghil-ref e l 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 (make-ghil-inline
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e l 'add (list (@impl e l pget (list (make-ghil-ref e l objvar)
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(make-ghil-quote e l prop)))
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(make-ghil-quote e l 1)))
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(lambda (tmpvar)
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(@impl e l pput (list (make-ghil-ref e l objvar)
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(make-ghil-quote e l prop)
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(make-ghil-ref e l 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 (make-ghil-inline
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e l 'add (list (@impl e l pget (list (make-ghil-ref e l objvar)
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(make-ghil-ref e l propvar)))
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(make-ghil-quote e l 1)))
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(lambda (tmpvar)
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(@impl e l pput (list (make-ghil-ref e l objvar)
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(make-ghil-ref e l propvar)
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(make-ghil-ref e l tmpvar))))))))))
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((predec (ref ,foo))
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(let ((v (ghil-var-for-set! e foo)))
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(make-ghil-begin
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e l (list
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(make-ghil-set e l v (make-ghil-inline
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e l 'sub (list (make-ghil-ref e l v)
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(make-ghil-quote e l 1))))
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(make-ghil-ref e l 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 (make-ghil-inline
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e l 'sub (list (@impl e l pget (list (make-ghil-ref e l objvar)
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(make-ghil-quote e l prop)))
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(make-ghil-quote e l 1)))
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(lambda (tmpvar)
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(@impl e l pput (list (make-ghil-ref e l objvar)
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(make-ghil-quote e l prop)
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(make-ghil-ref e l 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 (make-ghil-inline
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e l 'sub (list (@impl e l pget (list (make-ghil-ref e l objvar)
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(make-ghil-ref e l propvar)))
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(make-ghil-quote e l 1)))
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(lambda (tmpvar)
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(@impl e l pput (list (make-ghil-ref e l objvar)
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(make-ghil-ref e l propvar)
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(make-ghil-ref e l tmpvar))))))))))
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((ref ,id)
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(make-ghil-ref e l (ghil-var-for-ref! e id)))
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((var . ,forms)
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(make-ghil-begin e l
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(map (lambda (form)
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(pmatch form
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((,x ,y)
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(make-ghil-define e l
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(ghil-var-define!
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(ghil-env-parent e) x)
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(comp y e)))
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((,x)
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(make-ghil-define e l
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(ghil-var-define!
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(ghil-env-parent e) x)
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(@implv e l *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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(make-ghil-begin e l (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 (env vars)
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(make-ghil-lambda env l 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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;; FIXME: only evaluate "obj" once
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(@impl e l call/this*
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(list obj (make-ghil-lambda
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e l '() #f '()
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(make-ghil-call e l (@impl e l 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) ,(make-ghil-quote e l 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) ,(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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(make-ghil-call e l (comp proc e) (map (lambda (x) (comp x e)) args)))
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((return ,expr)
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(make-ghil-inline e l 'return (list (comp expr e))))
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((array . ,args)
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(@impl e l new-array (map (lambda (x) (comp x e)) args)))
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((object . ,args)
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(@impl e l 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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(make-ghil-inline e l 'cons
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(list (make-ghil-quote e l 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 e l pget (list (comp obj e) (make-ghil-quote e l prop))))
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((aref ,obj ,index)
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(@impl e l pget (list (comp obj e) (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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(make-ghil-begin e l
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(list (make-ghil-set e l v (comp val e))
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(make-ghil-ref e l v)))))
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((= (pref ,obj ,prop) ,val)
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(@impl e l pput (list (comp obj e) (make-ghil-quote e l prop) (comp val e))))
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((= (aref ,obj ,prop) ,val)
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(@impl e l pput (list (comp obj e) (comp prop e) (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 e l new (map (lambda (x) (comp x e)) (cons what args))))
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((delete (pref ,obj ,prop))
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(@impl e l pdel (list (comp obj e) (make-ghil-quote e l prop))))
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((delete (aref ,obj ,prop))
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(@impl e l pdel (list (comp obj e) (comp prop e))))
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((void ,expr)
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(make-ghil-begin e l (list (comp expr e) (@implv e l *undefined*))))
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((typeof ,expr)
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(@impl e l typeof (list (comp expr e))))
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(else
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(error "compilation not yet implemented:" x)))))
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(define (comp-body env loc body formals %args)
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(define (process)
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(let lp ((in body) (out '()) (rvars (reverse formals)))
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(pmatch in
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(((var (,x) . ,morevars) . ,rest)
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(lp `((var . ,morevars) . ,rest)
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out
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(if (memq x rvars) rvars (cons x rvars))))
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(((var (,x ,y) . ,morevars) . ,rest)
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(lp `((var . ,morevars) . ,rest)
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`((= (ref ,x) ,y) . ,out)
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(if (memq x rvars) rvars (cons x rvars))))
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(((var) . ,rest)
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(lp rest out rvars))
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((,x . ,rest) (guard (and (pair? x) (eq? (car x) 'lambda)))
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(lp rest
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(cons x out)
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rvars))
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((,x . ,rest) (guard (pair? x))
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(receive (sub-out rvars)
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(lp x '() rvars)
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(lp rest
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(cons sub-out out)
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rvars)))
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((,x . ,rest)
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(lp rest
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(cons x out)
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rvars))
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(()
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(values (reverse! out)
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rvars)))))
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(receive (out rvars)
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(process)
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(call-with-ghil-bindings env (reverse rvars)
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(lambda (vars)
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(let ((%argv (assq-ref (ghil-env-table env) %args)))
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(make-ghil-begin
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env loc
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`(,@(map (lambda (f)
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(make-ghil-if
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env loc
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(make-ghil-inline
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env loc 'null?
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(list (make-ghil-ref env loc %argv)))
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(make-ghil-begin env loc '())
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(make-ghil-begin
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env loc
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(list (make-ghil-set
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env loc
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(ghil-var-for-ref! env f)
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(make-ghil-inline
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env loc 'car
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(list (make-ghil-ref env loc %argv))))
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(make-ghil-set
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env loc %argv
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(make-ghil-inline
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env loc 'cdr
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(list (make-ghil-ref env loc %argv))))))))
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formals)
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;; fixme: here check for too many args
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,(comp out env))))))))
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