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io.streams.sequence: cleanup by moving type checks.

db4
John Benediktsson 2014-02-25 09:32:47 -08:00
parent 1170df3e71
commit bf1f4e9aa2
3 changed files with 28 additions and 15 deletions
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5
basis/io/streams/string/string.factor
View File

@ -10,10 +10,7 @@ INSTANCE: string-reader input-stream
M: string-reader stream-element-type drop +character+ ; inline
M: string-reader stream-read-unsafe
[ integer>fixnum ]
[ dup string? [ "not a string" throw ] unless ]
[ sequence-read-unsafe ] tri* ;
M: string-reader stream-read-unsafe sequence-read-unsafe ;
M: string-reader stream-read1 sequence-read1 ;
M: string-reader stream-read-until sequence-read-until ;
M: string-reader stream-readln

5
core/io/streams/byte-array/byte-array.factor
View File

@ -20,10 +20,7 @@ INSTANCE: byte-reader input-stream
M: byte-reader stream-element-type drop +byte+ ; inline
M: byte-reader stream-read-unsafe
[ integer>fixnum ]
[ dup byte-array? [ "not a byte array" throw ] unless ]
[ sequence-read-unsafe ] tri* ;
M: byte-reader stream-read-unsafe sequence-read-unsafe ;
M: byte-reader stream-read1 sequence-read1 ;
M: byte-reader stream-read-until sequence-read-until ;
M: byte-reader dispose drop ;

33
core/io/streams/sequence/sequence.factor
View File

@ -1,8 +1,8 @@
! Copyright (C) 2009 Daniel Ehrenberg
! See http://factorcode.org/license.txt for BSD license.
USING: accessors combinators destructors growable io io.private
io.streams.plain kernel math math.order sequences
sequences.private ;
USING: accessors byte-arrays combinators destructors growable
io io.private io.streams.plain kernel math math.order sequences
sequences.private strings ;
IN: io.streams.sequence
! Readers
@ -15,31 +15,50 @@ SLOT: i
: sequence-read1 ( stream -- elt/f )
dup >sequence-stream< dupd ?nth [ 1 + swap i<< ] dip ; inline
<PRIVATE
: (sequence-read-length) ( n buf stream -- buf count )
[ underlying>> length ] [ i>> ] bi - rot min ; inline
: <sequence-copy> ( dst n i src -- n copy )
[ 0 ] 3curry dip <copy> ; inline
: (sequence-read-unsafe) ( n buf stream -- count )
: ((sequence-read-unsafe)) ( n buf stream -- count )
[ (sequence-read-length) ]
[ [ dup pick + ] change-i underlying>> ] bi
[ <sequence-copy> (copy) drop ] 2curry keep ; inline
: check-byte-array ( buf -- buf )
dup byte-array? [ "not a byte array" throw ] unless ; inline
: check-string ( buf -- buf )
dup string? [ "not a string" throw ] unless ; inline
: (sequence-read-unsafe) ( n buf stream -- count )
[ integer>fixnum ] 2dip dup stream-element-type +byte+ eq?
[ [ check-byte-array ] dip ((sequence-read-unsafe)) ]
[ [ check-string ] dip ((sequence-read-unsafe)) ] if ; inline
PRIVATE>
: sequence-read-unsafe ( n buf stream -- count )
dup >sequence-stream< bounds-check?
[ (sequence-read-unsafe) ] [ 3drop 0 ] if ; inline
<PRIVATE
: find-separator ( seps stream -- sep/f n )
swap [ >sequence-stream< ] dip
[ member-eq? ] curry [ find-from swap ] curry 2keep
pick [ drop - ] [ length swap - nip ] if ; inline
>sequence-stream< rot [ member-eq? ] curry
[ find-from swap ] curry 2keep pick
[ drop - ] [ length swap - nip ] if ; inline
: (sequence-read-until) ( seps stream -- seq sep/f )
[ find-separator ] keep
[ [ (sequence-read-unsafe) ] (read-into-new) ]
[ [ 1 + ] change-i drop ] bi swap ; inline
PRIVATE>
: sequence-read-until ( seps stream -- seq sep/f )
dup >sequence-stream< bounds-check?
[ (sequence-read-until) ] [ 2drop f f ] if ; inline