111 lines
3.6 KiB
Scheme
111 lines
3.6 KiB
Scheme
;;; Ikarus Scheme -- A compiler for R6RS Scheme.
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;;; Copyright (C) 2006,2007,2008 Abdulaziz Ghuloum
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;;;
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;;; This program is free software: you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License version 3 as
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;;; published by the Free Software Foundation.
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;;;
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;;; This program is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;; General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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(library (ikarus.code-objects)
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(export
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make-code code-reloc-vector code-freevars
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code-size code-ref code-set! set-code-reloc-vector!
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set-code-annotation! procedure-annotation
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make-annotation-indirect annotation-indirect?
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code->thunk)
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(import
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(ikarus system $fx)
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(ikarus system $codes)
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(except (ikarus) make-code code-reloc-vector code-freevars
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code-size code-ref code-set! set-code-reloc-vector!
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procedure-annotation
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set-code-annotation!))
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(define make-code
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(lambda (code-size freevars)
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(unless (and (fixnum? code-size) ($fx>= code-size 0))
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(die 'make-code "not a valid code size" code-size))
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(unless (and (fixnum? freevars) ($fx>= freevars 0))
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(die 'make-code "not a valid number of free vars" freevars))
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(foreign-call "ikrt_make_code" code-size freevars '#())))
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(define code-reloc-vector
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(lambda (x)
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(unless (code? x) (die 'code-reloc-vector "not a code" x))
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($code-reloc-vector x)))
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(define code-freevars
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(lambda (x)
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(unless (code? x) (die 'code-closure-size "not a code" x))
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($code-freevars x)))
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(define code-size
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(lambda (x)
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(unless (code? x) (die 'code-size "not a code" x))
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($code-size x)))
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(define code-set!
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(lambda (x i v)
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(unless (code? x) (die 'code-set! "not a code" x))
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(unless (and (fixnum? i)
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($fx>= i 0)
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($fx< i ($code-size x)))
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(die 'code-set! "not a valid index" i))
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(unless (and (fixnum? v)
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($fx>= v 0)
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($fx< v 256))
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(die 'code-set! "not a valid byte" v))
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($code-set! x i v)))
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(define code-ref
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(lambda (x i)
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(unless (code? x) (die 'code-ref "not a code" x))
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(unless (and (fixnum? i)
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($fx>= i 0)
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($fx< i ($code-size x)))
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(die 'code-ref "not a valid index" i))
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($code-ref x i)))
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(define set-code-reloc-vector!
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(lambda (x v)
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(unless (code? x)
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(die 'set-code-reloc-vector! "not a code" x))
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(unless (vector? v)
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(die 'set-code-reloc-vector! "not a vector" v))
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(foreign-call "ikrt_set_code_reloc_vector" x v)))
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(define set-code-annotation!
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(lambda (x v)
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(unless (code? x)
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(die 'set-code-annotation! "not a code" x))
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(foreign-call "ikrt_set_code_annotation" x v)))
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(define code->thunk
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(lambda (x)
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(unless (code? x)
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(die 'code->thunk "not a a code object" x))
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(unless ($fxzero? ($code-freevars x))
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(die 'code->thunk "has free variables" x))
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($code->closure x)))
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(define-struct annotation-indirect ())
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(define (procedure-annotation x)
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(if (procedure? x)
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(let ([ae ($code-annotation ($closure-code x))])
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(if (annotation-indirect? ae)
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($annotated-procedure-annotation x)
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ae))
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(die 'procedure-annotation "not a procedure" x)))
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)
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