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sequences: update each-index and map-index to not depend on integers-as-sequences

db4
Slava Pestov 2009-06-14 18:10:24 -05:00
parent a5cd2202ff
commit dd61b59937
1 changed files with 9 additions and 6 deletions
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15
core/sequences/sequences.factor
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@ -358,8 +358,14 @@ PRIVATE>
<PRIVATE
: ((each)) ( seq -- n quot )
[ length ] keep [ nth-unsafe ] curry ; inline
: (each) ( seq quot -- n quot' )
[ [ length ] keep [ nth-unsafe ] curry ] dip compose ; inline
[ ((each)) ] dip compose ; inline
: (each-index) ( seq quot -- n quot' )
[ ((each)) [ keep ] curry ] dip compose ; inline
: (collect) ( quot into -- quot' )
[ [ keep ] dip set-nth-unsafe ] 2curry ; inline
@ -498,11 +504,8 @@ PRIVATE>
: follow ( obj quot -- seq )
[ dup ] swap [ keep ] curry produce nip ; inline
: prepare-index ( seq quot -- seq n quot )
[ dup length ] dip ; inline
: each-index ( seq quot -- )
prepare-index 2each ; inline
(each-index) each-integer ; inline
: interleave ( seq between quot -- )
swap [ drop ] [ [ 2dip call ] 2curry ] 2bi
@ -510,7 +513,7 @@ PRIVATE>
each-index ; inline
: map-index ( seq quot -- newseq )
prepare-index 2map ; inline
[ dup length iota ] dip 2map ; inline
: reduce-index ( seq identity quot -- )
swapd each-index ; inline