version 1.74, 2012/07/23 22:12:35
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version 1.78, 2012/12/31 15:25:18
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\ libcc.fs foreign function interface implemented using a C compiler |
\ libcc.fs foreign function interface implemented using a C compiler |
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\ Copyright (C) 2006,2007,2008,2009,2010,2011 Free Software Foundation, Inc. |
\ Copyright (C) 2006,2007,2008,2009,2010,2011,2012 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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Line 320 drop
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Line 320 drop
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c, 0 c, ; |
c, 0 c, ; |
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: parse-variable-type ( -- addr ) |
: parse-variable-type ( -- addr ) |
c-var c, here |
c-var c, here |
s" a" libcc-type c, 0 c, ; |
s" a" libcc-type c, 0 c, ; |
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0 Value is-funptr? |
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: parse-funptr-types ( "{libcc-type}" "--" "libcc-type" -- addr ) |
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true to is-funptr? parse-function-types ; |
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: type-letter ( n -- c ) |
: type-letter ( n -- c ) |
chars s" nadrfv" drop + c@ ; |
chars s" nadrfv" drop + c@ ; |
Line 449 create gen-wrapped-types
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Line 453 create gen-wrapped-types
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: gen-wrapped-stmt ( pars c-name fp-change1 sp-change1 ret -- fp-change sp-change ) |
: gen-wrapped-stmt ( pars c-name fp-change1 sp-change1 ret -- fp-change sp-change ) |
cells gen-wrapped-types + @ execute ; |
cells gen-wrapped-types + @ execute ; |
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: sanitize ( addr u -- ) |
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bounds ?DO |
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I c@ |
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dup 'a' 'z' 1+ within |
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over 'A' 'Z' 1+ within or |
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over '0' '9' 1+ within or |
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swap '_' = or 0= IF '_' I c! THEN |
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LOOP ; |
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: wrapper-function-name ( addr -- c-addr u ) |
: wrapper-function-name ( addr -- c-addr u ) |
\ addr points to the return type index of a c-function descriptor |
\ addr points to the return type index of a c-function descriptor |
count { r-type } count { d: pars } |
count { r-type } count { d: pars } |
Line 462 create gen-wrapped-types
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Line 475 create gen-wrapped-types
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i c@ type-letter front-char |
i c@ type-letter front-char |
loop |
loop |
'_ front-char r-type type-letter front-char assert( dup 0= ) |
'_ front-char r-type type-letter front-char assert( dup 0= ) |
2drop c-addr u ; |
2drop c-addr u 2dup sanitize ; |
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: gen-wrapper-function ( addr -- ) |
: gen-wrapper-function ( addr -- ) |
\ addr points to the return type index of a c-function descriptor |
\ addr points to the return type index of a c-function descriptor |
Line 473 create gen-wrapped-types
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Line 486 create gen-wrapped-types
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descriptor wrapper-function-name 2dup type drop free throw |
descriptor wrapper-function-name 2dup type drop free throw |
.\" (GFORTH_ARGS)\n" |
.\" (GFORTH_ARGS)\n" |
.\" {\n Cell MAYBE_UNUSED *sp = gforth_SP;\n Float MAYBE_UNUSED *fp = gforth_FP;\n " |
.\" {\n Cell MAYBE_UNUSED *sp = gforth_SP;\n Float MAYBE_UNUSED *fp = gforth_FP;\n " |
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is-funptr? IF .\" Cell ptr = *sp++;\n " 0 to is-funptr? THEN |
pars c-name 2over count-stacks ret gen-wrapped-stmt .\" ;\n" |
pars c-name 2over count-stacks ret gen-wrapped-stmt .\" ;\n" |
?dup-if |
?dup-if |
." gforth_SP = sp+" .nb .\" ;\n" |
." gforth_SP = sp+" .nb .\" ;\n" |
Line 675 DEFER compile-wrapper-function ( -- )
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Line 689 DEFER compile-wrapper-function ( -- )
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\G address of @code{c-name}. |
\G address of @code{c-name}. |
['] parse-variable-type (c-function) ; |
['] parse-variable-type (c-function) ; |
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: c-funptr ( "forth-name" "c-typecast" "@{type@}" "---" "type" -- ) \ gforth |
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\G Define a Forth word @i{forth-name}. @i{Forth-name} has the |
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\G specified stack effect and calls the C function pointer |
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\G ptr using the typecast or struct access @code{c-typecast}. |
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['] parse-funptr-types (c-function) ; |
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: clear-libs ( -- ) \ gforth |
: clear-libs ( -- ) \ gforth |
\G Clear the list of libs |
\G Clear the list of libs |
c-source-file-id @ if |
c-source-file-id @ if |