1 ! :folding=none:collapseFolds=1:
5 ! Copyright (C) 2004 Slava Pestov.
7 ! Redistribution and use in source and binary forms, with or without
8 ! modification, are permitted provided that the following conditions are met:
10 ! 1. Redistributions of source code must retain the above copyright notice,
11 ! this list of conditions and the following disclaimer.
13 ! 2. Redistributions in binary form must reproduce the above copyright notice,
14 ! this list of conditions and the following disclaimer in the documentation
15 ! and/or other materials provided with the distribution.
17 ! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
18 ! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
19 ! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
20 ! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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22 ! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 ! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 ! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
25 ! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
26 ! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 DEFER: init-namespaces
43 : hashcode ( obj -- hash )
44 #! If two objects are =, they must have equal hashcodes.
46 [ cons? ] [ 4 cons-hashcode ]
47 [ string? ] [ str-hashcode ]
48 [ fixnum? ] [ ( return the object ) ]
53 #! Push t if a is isomorphic to b.
60 [ drop t ] [ 2drop f ]
64 : clone ( obj -- obj )
66 [ cons? ] [ clone-list ]
67 [ vector? ] [ clone-vector ]
68 [ drop t ] [ ( return the object ) ]
71 : class-of ( obj -- name )
73 [ fixnum? ] [ drop "fixnum" ]
74 [ cons? ] [ drop "cons" ]
75 [ word? ] [ drop "word" ]
78 [ vector? ] [ drop "vector" ]
79 [ string? ] [ drop "string" ]
80 [ sbuf? ] [ drop "sbuf" ]
81 [ handle? ] [ drop "handle" ]
82 [ drop t ] [ drop "unknown" ]
88 0 <vector> set-datastack
89 0 <vector> set-callstack ;