--- /dev/null
+#| -*-Scheme-*-
+
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/compiler/etc/stackp.scm,v 1.1 1988/01/07 23:04:17 cph Exp $
+
+Copyright (c) 1987 Massachusetts Institute of Technology
+
+This material was developed by the Scheme project at the Massachusetts
+Institute of Technology, Department of Electrical Engineering and
+Computer Science. Permission to copy this software, to redistribute
+it, and to use it for any purpose is granted, subject to the following
+restrictions and understandings.
+
+1. Any copy made of this software must include this copyright notice
+in full.
+
+2. Users of this software agree to make their best efforts (a) to
+return to the MIT Scheme project any improvements or extensions that
+they make, so that these may be included in future releases; and (b)
+to inform MIT of noteworthy uses of this software.
+
+3. All materials developed as a consequence of the use of this
+software shall duly acknowledge such use, in accordance with the usual
+standards of acknowledging credit in academic research.
+
+4. MIT has made no warrantee or representation that the operation of
+this software will be error-free, and MIT is under no obligation to
+provide any services, by way of maintenance, update, or otherwise.
+
+5. In conjunction with products arising from the use of this material,
+there shall be no use of the name of the Massachusetts Institute of
+Technology nor of any adaptation thereof in any advertising,
+promotional, or sales literature without prior written consent from
+MIT in each case. |#
+
+;;;; Primitive Stack Parser
+
+(declare (usual-integrations))
+\f
+(define rcd)
+(define rcr)
+(define write-continuation)
+(define continuation-ref)
+(let ()
+
+(set! rcd
+ (named-lambda (rcd #!optional filename)
+ (if (unassigned? filename)
+ (write-continuation)
+ (with-output-to-file filename write-continuation))))
+
+(set! rcr
+ (named-lambda (rcr n)
+ (continuation-ref (rep-continuation) n)))
+
+(set! write-continuation
+ (named-lambda (write-continuation #!optional continuation)
+ (if (unassigned? continuation) (set! continuation (rep-continuation)))
+ (write-stack-stream (continuation->stream continuation) 0)))
+
+(define (write-stack-stream stream n)
+ (if (null? stream)
+ *the-non-printing-object*
+ (begin (if (return-address? (stack-stream-head stream))
+ (newline))
+ (newline)
+ (write n)
+ (write-string "\t")
+ (let ((string (write-to-string (stack-stream-head stream) 60)))
+ (write-string (cdr string))
+ (if (car string)
+ (write-string "...")))
+ (write-stack-stream (tail stream) (1+ n)))))
+
+(set! continuation-ref
+ (named-lambda (continuation-ref continuation n)
+ (stack-stream-ref (continuation->stream continuation) n)))
+
+(define (stack-stream-ref stream n)
+ (cond ((null? stream) (error "index too large" n))
+ ((positive? n) (stack-stream-ref (tail stream) (-1+ n)))
+ (else (stack-stream-head stream))))
+\f
+(define (continuation->stream continuation)
+ (control-point->stream (continuation->control-point continuation)))
+
+(define (continuation->control-point continuation)
+ (force (access promised-control-point (procedure-environment continuation))))
+
+(define (control-point->stream control-point)
+ (stack->stream
+ ((access control-point->stack continuation-package) control-point)))
+
+(define (stack->stream stack)
+ (if (null? stack)
+ '()
+ (let ((item (stack-stream-head stack))
+ (rest (tail stack)))
+ (cons-stream item
+ (if (and (return-address? item)
+ (= return-code:join-stacklets
+ (primitive-datum item)))
+ (cons-stream (head rest)
+ (control-point->stream (head rest)))
+ (stack->stream rest))))))
+
+(define (stack-stream-head stack)
+ (if (primitive-type? type-code:reference-trap (head stack))
+ (map-reference-trap (lambda () (head stack)))
+ (head stack)))
+
+(define return-code:join-stacklets
+ (microcode-return 'JOIN-STACKLETS))
+
+(define type-code:reference-trap
+ (microcode-type 'REFERENCE-TRAP))
+
+)
\ No newline at end of file
--- /dev/null
+#| -*-Scheme-*-
+
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v8/src/compiler/etc/stackp.scm,v 1.1 1988/01/07 23:04:17 cph Exp $
+
+Copyright (c) 1987 Massachusetts Institute of Technology
+
+This material was developed by the Scheme project at the Massachusetts
+Institute of Technology, Department of Electrical Engineering and
+Computer Science. Permission to copy this software, to redistribute
+it, and to use it for any purpose is granted, subject to the following
+restrictions and understandings.
+
+1. Any copy made of this software must include this copyright notice
+in full.
+
+2. Users of this software agree to make their best efforts (a) to
+return to the MIT Scheme project any improvements or extensions that
+they make, so that these may be included in future releases; and (b)
+to inform MIT of noteworthy uses of this software.
+
+3. All materials developed as a consequence of the use of this
+software shall duly acknowledge such use, in accordance with the usual
+standards of acknowledging credit in academic research.
+
+4. MIT has made no warrantee or representation that the operation of
+this software will be error-free, and MIT is under no obligation to
+provide any services, by way of maintenance, update, or otherwise.
+
+5. In conjunction with products arising from the use of this material,
+there shall be no use of the name of the Massachusetts Institute of
+Technology nor of any adaptation thereof in any advertising,
+promotional, or sales literature without prior written consent from
+MIT in each case. |#
+
+;;;; Primitive Stack Parser
+
+(declare (usual-integrations))
+\f
+(define rcd)
+(define rcr)
+(define write-continuation)
+(define continuation-ref)
+(let ()
+
+(set! rcd
+ (named-lambda (rcd #!optional filename)
+ (if (unassigned? filename)
+ (write-continuation)
+ (with-output-to-file filename write-continuation))))
+
+(set! rcr
+ (named-lambda (rcr n)
+ (continuation-ref (rep-continuation) n)))
+
+(set! write-continuation
+ (named-lambda (write-continuation #!optional continuation)
+ (if (unassigned? continuation) (set! continuation (rep-continuation)))
+ (write-stack-stream (continuation->stream continuation) 0)))
+
+(define (write-stack-stream stream n)
+ (if (null? stream)
+ *the-non-printing-object*
+ (begin (if (return-address? (stack-stream-head stream))
+ (newline))
+ (newline)
+ (write n)
+ (write-string "\t")
+ (let ((string (write-to-string (stack-stream-head stream) 60)))
+ (write-string (cdr string))
+ (if (car string)
+ (write-string "...")))
+ (write-stack-stream (tail stream) (1+ n)))))
+
+(set! continuation-ref
+ (named-lambda (continuation-ref continuation n)
+ (stack-stream-ref (continuation->stream continuation) n)))
+
+(define (stack-stream-ref stream n)
+ (cond ((null? stream) (error "index too large" n))
+ ((positive? n) (stack-stream-ref (tail stream) (-1+ n)))
+ (else (stack-stream-head stream))))
+\f
+(define (continuation->stream continuation)
+ (control-point->stream (continuation->control-point continuation)))
+
+(define (continuation->control-point continuation)
+ (force (access promised-control-point (procedure-environment continuation))))
+
+(define (control-point->stream control-point)
+ (stack->stream
+ ((access control-point->stack continuation-package) control-point)))
+
+(define (stack->stream stack)
+ (if (null? stack)
+ '()
+ (let ((item (stack-stream-head stack))
+ (rest (tail stack)))
+ (cons-stream item
+ (if (and (return-address? item)
+ (= return-code:join-stacklets
+ (primitive-datum item)))
+ (cons-stream (head rest)
+ (control-point->stream (head rest)))
+ (stack->stream rest))))))
+
+(define (stack-stream-head stack)
+ (if (primitive-type? type-code:reference-trap (head stack))
+ (map-reference-trap (lambda () (head stack)))
+ (head stack)))
+
+(define return-code:join-stacklets
+ (microcode-return 'JOIN-STACKLETS))
+
+(define type-code:reference-trap
+ (microcode-type 'REFERENCE-TRAP))
+
+)
\ No newline at end of file
projects / mit-scheme.git / commitdiff