89 lines
2.5 KiB
Factor
89 lines
2.5 KiB
Factor
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! :folding=indent:collapseFolds=1:
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! $Id$
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!
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! Copyright (C) 2004 Slava Pestov.
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions are met:
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!
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! 1. Redistributions of source code must retain the above copyright notice,
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! this list of conditions and the following disclaimer.
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!
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! 2. Redistributions in binary form must reproduce the above copyright notice,
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! this list of conditions and the following disclaimer in the documentation
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! and/or other materials provided with the distribution.
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!
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! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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IN: compiler
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USE: math
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USE: stack
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USE: lists
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USE: combinators
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USE: words
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USE: namespaces
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USE: unparser
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USE: errors
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USE: strings
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USE: logic
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USE: kernel
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USE: vectors
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: compile-word ( word -- )
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#! Compile a JMP at the end (tail call optimization)
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word-xt "compile-last" get [ JMP ] [ CALL ] ifte ;
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: compile-literal ( obj -- )
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dup fixnum? [
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address-of LITERAL
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] [
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intern-literal [LITERAL]
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] ifte ;
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: commit-literals ( -- )
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"compile-datastack" get dup [ compile-literal ] vector-each
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0 swap set-vector-length ;
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: postpone ( obj -- )
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"compile-datastack" get vector-push ;
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: compile-atom ( obj -- )
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[
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[ word? ] [ commit-literals compile-word ]
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[ drop t ] [ postpone ]
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] cond ;
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: compile-loop ( quot -- )
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dup [
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unswons
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over not "compile-last" set
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compile-atom
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compile-loop
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] [
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commit-literals drop RET
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] ifte ;
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: compile-quot ( quot -- xt )
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[
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"compile-last" off
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10 <vector> "compile-datastack" set
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compiled-offset swap compile-loop
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] with-scope ;
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: compile ( word -- )
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intern dup word-parameter compile-quot swap set-word-xt ;
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: call-xt ( xt -- )
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#! For testing.
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0 f f <word> [ set-word-xt ] keep execute ;
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