141 lines
4.1 KiB
Factor
141 lines
4.1 KiB
Factor
USING: accessors alien alien.c-types alien.syntax arrays ascii
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assocs combinators fry kernel macros math.parser sequences splitting ;
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IN: alien.fortran
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! XXX this currently only supports the gfortran/f2c abi.
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! XXX we should also support ifort at some point for commercial BLASes
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C-STRUCT: (fortran-complex)
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{ "float" "r" }
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{ "float" "i" } ;
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C-STRUCT: (fortran-double-complex)
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{ "double" "r" }
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{ "double" "i" } ;
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: fortran-c-abi ( -- abi ) "cdecl" ;
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: fortran-name>symbol-name ( fortran-name -- c-name )
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>lower CHAR: _ over member?
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[ "__" append ] [ "_" append ] if ;
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ERROR: invalid-fortran-type type ;
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<PRIVATE
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TUPLE: fortran-type dims size ;
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TUPLE: number-type < fortran-type ;
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TUPLE: integer-type < number-type ;
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TUPLE: logical-type < integer-type ;
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TUPLE: real-type < number-type ;
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TUPLE: double-precision-type < number-type ;
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TUPLE: character-type < fortran-type ;
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TUPLE: misc-type < fortran-type name ;
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TUPLE: complex-type < number-type ;
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TUPLE: real-complex-type < complex-type ;
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TUPLE: double-complex-type < complex-type ;
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CONSTANT: fortran>c-types H{
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{ "character" character-type }
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{ "integer" integer-type }
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{ "logical" logical-type }
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{ "real" real-type }
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{ "double precision" double-precision-type }
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{ "complex" real-complex-type }
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{ "double complex" double-complex-type }
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}
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: append-dimensions ( base-c-type type -- c-type )
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dims>>
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[ product number>string "[" "]" surround append ] when* ;
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MACRO: size-case-type ( cases -- )
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[ invalid-fortran-type ] suffix
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'[ [ size>> _ case ] [ append-dimensions ] bi ] ;
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: simple-type ( type base-c-type -- c-type )
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swap
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[ dup size>> [ invalid-fortran-type ] [ drop ] if ]
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[ append-dimensions ] bi ;
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: new-fortran-type ( dims size class -- type )
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new [ (>>size) ] [ (>>dims) ] [ ] tri ;
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GENERIC: (fortran-type>c-type) ( type -- c-type )
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M: integer-type (fortran-type>c-type)
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{
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{ f [ "int" ] }
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{ 2 [ "short" ] }
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{ 4 [ "int" ] }
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{ 8 [ "longlong" ] }
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} size-case-type ;
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M: real-type (fortran-type>c-type)
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{
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{ f [ "float" ] }
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{ 4 [ "float" ] }
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{ 8 [ "double" ] }
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} size-case-type ;
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M: complex-type (fortran-type>c-type)
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{
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{ f [ "(fortran-complex)" ] }
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{ 8 [ "(fortran-complex)" ] }
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{ 16 [ "(fortran-double-complex)" ] }
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} size-case-type ;
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M: double-precision-type (fortran-type>c-type)
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"double" simple-type ;
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M: double-complex-type (fortran-type>c-type)
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"(fortran-double-complex)" simple-type ;
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M: misc-type (fortran-type>c-type)
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dup name>> simple-type ;
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: fix-character-type ( character-type -- character-type' )
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clone dup size>>
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[ dup dims>> [ invalid-fortran-type ] [ dup size>> 1array >>dims f >>size ] if ]
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[ dup dims>> [ ] [ { 1 } >>dims ] if ] if ;
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M: character-type (fortran-type>c-type)
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fix-character-type "char" simple-type ;
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: dimension>number ( string -- number )
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dup "*" = [ drop 0 ] [ string>number ] if ;
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: parse-dims ( string -- string' dim )
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"(" split1 dup
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[ ")" ?tail drop "," split [ [ blank? ] trim dimension>number ] map ] when ;
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: parse-size ( string -- string' size )
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"*" split1 dup [ string>number ] when ;
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: parse-fortran-type ( fortran-type-string -- type )
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parse-dims swap parse-size swap
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dup >lower fortran>c-types at*
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[ nip new-fortran-type ] [ drop misc-type boa ] if ;
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: c-type>pointer ( c-type -- c-type* )
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"[" split1 drop "*" append ;
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GENERIC: added-c-args ( type -- args )
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M: fortran-type added-c-args drop { } ;
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M: character-type added-c-args drop { "long" } ;
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PRIVATE>
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: fortran-type>c-type ( fortran-type -- c-type )
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parse-fortran-type (fortran-type>c-type) ;
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: fortran-arg-type>c-type ( fortran-type -- c-type added-args ) { } ;
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: fortran-ret-type>c-type ( fortran-type -- c-type added-args ) { } ;
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: fortran-sig>c-sig ( fortran-return fortran-args -- c-return c-args ) ;
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! : F-RECORD: ... ; parsing
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! : F-ABI: ... ; parsing
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! : F-SUBROUTINE: ... ; parsing
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! : F-FUNCTION: ... ; parsing
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