gforth/libcc.fs - diff

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Diff for /gforth/libcc.fs between versions 1.74 and 1.78

version 1.74, 2012/07/23 22:12:35	version 1.78, 2012/12/31 15:25:18
Line 1	Line 1
\ libcc.fs foreign function interface implemented using a C compiler	\ libcc.fs foreign function interface implemented using a C compiler

\ 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.

\ This file is part of Gforth.	\ This file is part of Gforth.

Line 320 drop	Line 320 drop
c, 0 c, ;	c, 0 c, ;

: 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, ;

	0 Value is-funptr?
	: parse-funptr-types ( "{libcc-type}" "--" "libcc-type" -- addr )
	true to is-funptr? parse-function-types ;

: type-letter ( n -- c )	: type-letter ( n -- c )
chars s" nadrfv" drop + c@ ;	chars s" nadrfv" drop + c@ ;
Line 449 create gen-wrapped-types	Line 453 create gen-wrapped-types
: 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 ;

	: sanitize ( addr u -- )
	bounds ?DO
	I c@
	dup 'a' 'z' 1+ within
	over 'A' 'Z' 1+ within or
	over '0' '9' 1+ within or
	swap '_' = or 0= IF '_' I c! THEN
	LOOP ;

: 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	Line 475 create gen-wrapped-types
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 ;

: 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	Line 486 create gen-wrapped-types
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 "
	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 ( -- )	Line 689 DEFER compile-wrapper-function ( -- )
\G address of @code{c-name}.	\G address of @code{c-name}.
['] parse-variable-type (c-function) ;	['] parse-variable-type (c-function) ;

	: c-funptr ( "forth-name" "c-typecast" "@{type@}" "---" "type" -- ) \ gforth
	\G Define a Forth word @i{forth-name}. @i{Forth-name} has the
	\G specified stack effect and calls the C function pointer
	\G ptr using the typecast or struct access @code{c-typecast}.
	['] parse-funptr-types (c-function) ;

: 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

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Removed from v.1.74
changed lines
	Added in v.1.78