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[factor-unmaintained.git] / models / combinators / templates / templates.factor

diff --git a/models/combinators/templates/templates.factor b/models/combinators/templates/templates.factor
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+++ b/models/combinators/templates/templates.factor
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+USING: kernel sequences functors fry macros generalizations ;
+IN: models.combinators.templates
+FROM: models.combinators => <collection> #1 ;
+FUNCTOR: fmaps ( W -- )
+W        IS ${W}
+w-n      DEFINES ${W}-n
+w-2      DEFINES 2${W}
+w-3      DEFINES 3${W}
+w-4      DEFINES 4${W}
+w-n*     DEFINES ${W}-n*
+w-2*     DEFINES 2${W}*
+w-3*     DEFINES 3${W}*
+w-4*     DEFINES 4${W}*
+WHERE
+MACRO: w-n ( int -- quot ) dup '[ [ _ narray <collection> ] dip [ _ firstn ] prepend W ] ;
+: w-2 ( a b quot -- mapped ) 2 w-n ; inline
+: w-3 ( a b c quot -- mapped ) 3 w-n ; inline
+: w-4 ( a b c d quot -- mapped ) 4 w-n ; inline
+MACRO: w-n* ( int -- quot ) dup '[ [ _ narray <collection> #1 ] dip [ _ firstn ] prepend W ] ;
+: w-2* ( a b quot -- mapped ) 2 w-n* ; inline
+: w-3* ( a b c quot -- mapped ) 3 w-n* ; inline
+: w-4* ( a b c d quot -- mapped ) 4 w-n* ; inline
+;FUNCTOR