version 1.9, 1997/03/31 22:14:39
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version 1.10, 1997/07/02 20:30:06
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Line 126 Objects definitions
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Line 126 Objects definitions
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: defer? ( addr -- flag ) |
: defer? ( addr -- flag ) |
>body cell+ @ #defer = ; |
>body cell+ @ #defer = ; |
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false Value oset? |
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: o+, ( addr offset -- ) |
: o+, ( addr offset -- ) |
postpone Literal postpone ^ postpone + |
postpone Literal postpone ^ postpone + |
postpone >o drop ; |
oset? IF postpone op! ELSE postpone >o THEN drop ; |
: o*, ( addr offset -- ) |
: o*, ( addr offset -- ) |
postpone Literal postpone * postpone Literal postpone + |
postpone Literal postpone * postpone Literal postpone + |
postpone >o ; |
oset? IF postpone op! ELSE postpone >o THEN ; |
: ^+@ ( offset -- addr ) ^ + @ ; |
: ^+@ ( offset -- addr ) ^ + @ ; |
: o+@, ( addr offset -- ) |
: o+@, ( addr offset -- ) |
postpone Literal postpone ^+@ postpone >o drop ; |
postpone Literal postpone ^+@ oset? IF postpone op! ELSE postpone >o THEN drop ; |
: ^*@ ( offset -- addr ) ^ + @ tuck @ :var# + @ 8aligned * + ; |
: ^*@ ( offset -- addr ) ^ + @ tuck @ :var# + @ 8aligned * + ; |
: o+@*, ( addr offset -- ) |
: o+@*, ( addr offset -- ) |
postpone Literal postpone ^*@ postpone >o drop ; |
postpone Literal postpone ^*@ oset? IF postpone op! ELSE postpone >o THEN drop ; |
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\ variables / memory allocation 30oct94py |
\ variables / memory allocation 30oct94py |
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Line 216 Objects definitions
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Line 218 Objects definitions
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r> drop-order ; |
r> drop-order ; |
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false Value method? |
false Value method? |
false Value oset? |
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: method, ( object early? -- ) true to method? |
: method, ( object early? -- ) true to method? |
swap >o >r bl word findo 0< state @ and |
swap >o >r bl word findo 0< state @ and |
IF r> o, ELSE r> drop execute THEN o> false to method? ; |
IF r> o, ELSE r> drop execute THEN o> false to method? ; |
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: cmethod, ( object early? -- ) |
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state @ >r state on method, r> state ! ; |
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: early, ( object -- ) true to oset? true method, |
: early, ( object -- ) true to oset? true method, |
state @ IF postpone o> THEN false to oset? ; |
state @ oset? and IF postpone o> THEN false to oset? ; |
: late, ( object -- ) true to oset? false method, |
: late, ( object -- ) true to oset? false method, |
state @ IF postpone o> THEN false to oset? ; |
state @ oset? and IF postpone o> THEN false to oset? ; |
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\ new, 29oct94py |
\ new, 29oct94py |
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Line 306 Objects definitions
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Line 310 Objects definitions
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\ instance creation 29mar94py |
\ instance creation 29mar94py |
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: instance, ( o -- ) alloc @ >r static new, r> alloc ! drop |
: instance, ( o -- ) alloc @ >r static new, r> alloc ! drop |
DOES> state @ IF dup postpone Literal postpone >o THEN early, ; |
DOES> state @ IF dup postpone Literal oset? IF postpone op! ELSE postpone >o THEN THEN early, ; |
: ptr, ( o -- ) 0 , , |
: ptr, ( o -- ) 0 , , |
DOES> state @ |
DOES> state @ |
IF dup postpone Literal postpone @ postpone >o cell+ |
IF dup postpone Literal postpone @ oset? IF postpone op! ELSE postpone >o THEN cell+ |
ELSE @ THEN late, ; |
ELSE @ THEN late, ; |
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: array, ( n o -- ) alloc @ >r static new[], r> alloc ! drop |
: array, ( n o -- ) alloc @ >r static new[], r> alloc ! drop |
Line 440 types definitions
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Line 444 types definitions
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: asptr ( addr -- ) cell+ @ Create immediate |
: asptr ( addr -- ) cell+ @ Create immediate |
lastob @ here lastob ! , , instptr> ; |
lastob @ here lastob ! , , instptr> ; |
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: Fpostpone postpone postpone ; immediate |
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: : ( <methodname> -- ) decl @ abort" HOW: missing! " |
: : ( <methodname> -- ) decl @ abort" HOW: missing! " |
bl word findo 0= abort" not found" |
bl word findo 0= abort" not found" |
dup exec? over early? or over >body cell+ @ 0< or |
dup exec? over early? or over >body cell+ @ 0< or |
Line 490 Create object immediate 0 (class \ do
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Line 496 Create object immediate 0 (class \ do
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early send immediate |
early send immediate |
early with immediate |
early with immediate |
early endwith immediate |
early endwith immediate |
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early postpone immediate |
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\ base object class implementation part 23mar95py |
\ base object class implementation part 23mar95py |
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Line 507 how: 0 parento !
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Line 514 how: 0 parento !
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: [] ( n -- ) Create immediate o@ |
: [] ( n -- ) Create immediate o@ |
decl @ IF instarray, ELSE array, THEN ; |
decl @ IF instarray, ELSE array, THEN ; |
: new ( -- o ) o@ state @ |
: new ( -- o ) o@ state @ |
IF postpone Literal postpone new, ELSE new, THEN ; |
IF Fpostpone Literal Fpostpone new, ELSE new, THEN ; |
: new[] ( n -- o ) o@ state @ |
: new[] ( n -- o ) o@ state @ |
IF postpone Literal postpone new[], ELSE new[], THEN ; |
IF Fpostpone Literal Fpostpone new[], ELSE new[], THEN ; |
: dispose ( -- ) ^ size @ dispose, ; |
: dispose ( -- ) ^ size @ dispose, ; |
: bind ( addr -- ) (bind ; |
: bind ( addr -- ) (bind ; |
: bound ( o1 o2 addr2 -- ) (bound ; |
: bound ( o1 o2 addr2 -- ) (bound ; |
Line 523 how: 0 parento !
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Line 530 how: 0 parento !
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: init ( -- ) ; |
: init ( -- ) ; |
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: ' ( -- xt ) bl word findo 0= abort" not found!" |
: ' ( -- xt ) bl word findo 0= abort" not found!" |
state @ IF postpone Literal THEN ; |
state @ IF Fpostpone Literal THEN ; |
: send ( xt -- ) execute ; |
: send ( xt -- ) execute ; |
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: postpone ( -- ) o@ add-order Fpostpone Fpostpone drop-order ; |
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: with ( -- ) |
: with ( -- ) |
state @ oset? 0= and IF postpone >o THEN |
state @ oset? 0= and IF Fpostpone >o THEN |
o@ add-order voc# ! false to oset? |
o@ add-order voc# ! false to oset? ; |
r> drop state @ |
: endwith Fpostpone o> |
IF o> |
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ELSE oset? IF ^ THEN o> postpone >o |
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THEN |
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r> drop r> drop ; |
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: endwith postpone o> |
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voc# @ drop-order ; |
voc# @ drop-order ; |
class; \ object |
class; \ object |
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Line 596 Forth definitions
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Line 599 Forth definitions
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previous previous |
previous previous |
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\ The program uses the following words |
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\ from CORE : |
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\ decimal : bl word 0= ; cells Constant POSTPONE IF EXIT THEN immediate |
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\ Create , DOES> @ >r r> swap + and Variable ! allot ELSE +! dup * >body |
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\ cell+ = Literal drop align here aligned execute ['] 2@ recurse 1+ over |
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\ LOOP ?dup 0< rot r@ - i negate +LOOP 2drop BEGIN WHILE 2dup REPEAT 1- |
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\ rshift > / ' move UNTIL or count |
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\ from CORE-EXT : |
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\ nip tuck true ?DO compile, false Value erase pick :noname 0<> |
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\ from BLOCK-EXT : |
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\ \ |
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\ from EXCEPTION : |
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\ throw |
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\ from EXCEPTION-EXT : |
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\ abort" |
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\ from FILE : |
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\ ( S" |
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\ from FLOAT : |
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\ faligned |
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\ from LOCAL : |
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\ TO |
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\ from MEMORY : |
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\ allocate free |
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\ from SEARCH : |
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\ find wordlist get-order set-order definitions get-current set-current search-wordlist |
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\ from SEARCH-EXT : |
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\ also Forth previous |
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\ from STRING : |
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\ /string compare |
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\ from TOOLS-EXT : |
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\ state [IF] [THEN] |
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