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Working on evaluation of arguments in lisp

db4
James Cash 2008-06-11 01:33:04 -04:00
parent aec57446ab
commit f9676666bd
1 changed files with 27 additions and 24 deletions
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51
extra/lisp/lisp.factor
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@ -24,10 +24,10 @@ M: no-such-var summary drop "No such variable" ;
[ ] [ convert-form compose ] foldl ; inline [ ] [ convert-form compose ] foldl ; inline
: convert-begin ( cons -- quot ) : convert-begin ( cons -- quot )
cdr [ convert-form ] [ ] lmap-as '[ , [ funcall ] each ] ; cdr [ convert-form ] [ ] lmap-as '[ , [ call ] each ] ;
: convert-cond ( cons -- quot ) : convert-cond ( cons -- quot )
cdr [ 2car [ convert-form ] bi@ [ '[ @ funcall ] ] dip 2array ] cdr [ 2car [ convert-form ] bi@ [ '[ @ call ] ] dip 2array ]
{ } lmap-as '[ , cond ] ; { } lmap-as '[ , cond ] ;
: convert-general-form ( cons -- quot ) : convert-general-form ( cons -- quot )
@ -36,35 +36,33 @@ M: no-such-var summary drop "No such variable" ;
! words for convert-lambda ! words for convert-lambda
<PRIVATE <PRIVATE
: localize-body ( assoc body -- assoc newbody ) : localize-body ( assoc body -- assoc newbody )
[ lisp-symbol? ] pick '[ [ name>> , at ] [ ] bi or ] traverse ; {
{ [ dup list? ] [ [ lisp-symbol? ] pick '[ [ name>> , at ] [ ] bi or ] traverse ] }
{ [ dup lisp-symbol? ] [ name>> over at ] }
[ ]
} cond ;
: localize-lambda ( body vars -- newbody newvars ) : localize-lambda ( body vars -- newvars newbody )
tuck make-locals dup push-locals swap make-locals dup push-locals swap
[ swap localize-body swapd convert-form nip swap pop-locals ] dip swap ; [ swap localize-body convert-form swap pop-locals ] dip swap ;
: split-lambda ( cons -- body-cons vars-seq ) : split-lambda ( cons -- body-cons vars-seq )
3car -rot nip [ name>> ] lmap>array ; inline cdr uncons [ car ] [ [ name>> ] lmap>array ] bi* ; inline
: rest-lambda ( body vars -- quot ) : rest-lambda ( body vars -- quot )
"&rest" swap [ index ] [ remove ] 2bi "&rest" swap [ index ] [ remove ] 2bi
swapd localize-lambda <lambda> swapd localize-lambda <lambda>
'[ , cut '[ @ , ] , compose ] ; '[ , cut '[ @ , seq>list ] call , call ] ;
: normal-lambda ( body vars -- quot ) : normal-lambda ( body vars -- quot )
localize-lambda <lambda> '[ , compose ] ; localize-lambda <lambda> lambda-rewrite [ compose call ] compose 1quotation ;
PRIVATE> PRIVATE>
: convert-lambda ( cons -- quot ) : convert-lambda ( cons -- quot )
split-lambda "&rest" over member? [ rest-lambda ] [ normal-lambda ] if ; split-lambda "&rest" over member? [ rest-lambda ] [ normal-lambda ] if ;
: convert-quoted ( cons -- quot ) : convert-quoted ( cons -- quot )
cdr 1quotation ; cadr 1quotation ;
: convert-unquoted ( cons -- quot )
"unquote not valid outside of quasiquote!" throw ;
: convert-unquoted-splicing ( cons -- quot )
"unquote-splicing not valid outside of quasiquote!" throw ;
: convert-defmacro ( cons -- quot ) : convert-defmacro ( cons -- quot )
cdr [ car ] keep [ convert-lambda ] [ car name>> ] bi define-lisp-macro 1quotation ; cdr [ car ] keep [ convert-lambda ] [ car name>> ] bi define-lisp-macro 1quotation ;
@ -74,9 +72,6 @@ PRIVATE>
{ { "lambda" [ convert-lambda ] } { { "lambda" [ convert-lambda ] }
{ "defmacro" [ convert-defmacro ] } { "defmacro" [ convert-defmacro ] }
{ "quote" [ convert-quoted ] } { "quote" [ convert-quoted ] }
{ "unquote" [ convert-unquoted ] }
{ "unquote-splicing" [ convert-unquoted-splicing ] }
{ "quasiquote" [ convert-quasiquoted ] }
{ "begin" [ convert-begin ] } { "begin" [ convert-begin ] }
{ "cond" [ convert-cond ] } { "cond" [ convert-cond ] }
[ drop convert-general-form ] [ drop convert-general-form ]
@ -92,6 +87,7 @@ PRIVATE>
: convert-form ( lisp-form -- quot ) : convert-form ( lisp-form -- quot )
{ {
{ [ dup cons? ] [ convert-list-form ] } { [ dup cons? ] [ convert-list-form ] }
{ [ dup lisp-var? ] [ lookup-var 1quotation ] }
{ [ dup lisp-symbol? ] [ '[ , lookup-var ] ] } { [ dup lisp-symbol? ] [ '[ , lookup-var ] ] }
[ 1quotation ] [ 1quotation ]
} cond ; } cond ;
@ -120,20 +116,27 @@ SYMBOL: macro-env
: lisp-define ( quot name -- ) : lisp-define ( quot name -- )
lisp-env get set-at ; lisp-env get set-at ;
: defun ( name quot -- name )
over name>> lisp-define ;
: lisp-get ( name -- word ) : lisp-get ( name -- word )
dup lisp-env get at [ ] [ no-such-var ] ?if ; dup lisp-env get at [ ] [ no-such-var ] ?if ;
: lookup-var ( lisp-symbol -- quot ) : lookup-var ( lisp-symbol -- quot )
name>> lisp-get ; name>> lisp-get ;
: lisp-var? ( lisp-symbol -- ? ) : lisp-var? ( lisp-symbol -- ? )
name>> lisp-env get key? ; dup lisp-symbol? [ name>> lisp-env get key? ] [ drop f ] if ;
: funcall-arg-list ( args -- newargs )
[ ] [ dup \ funcall = [ drop 2 cut* [ funcall ] compose call ] when suffix ] reduce ;
: funcall ( quot sym -- * ) : funcall ( quot sym -- * )
dup lisp-symbol? [ lookup-var ] when call ; inline [ funcall-arg-list ] dip
dup lisp-symbol? [ lookup-var ] when curry call ; inline
: define-primitive ( name vocab word -- ) : define-primitive ( name vocab word -- )
swap lookup 1quotation '[ , compose call ] swap lisp-define ; swap lookup 1quotation '[ , compose call ] swap lisp-define ; ! '[ , compose call ] swap lisp-define ;
: lookup-macro ( lisp-symbol -- lambda ) : lookup-macro ( lisp-symbol -- lambda )
name>> macro-env get at ; name>> macro-env get at ;