scsh-0.6/ps-compiler/front/top.scm

92 lines
2.3 KiB
Scheme

; Copyright (c) 1993-1999 by Richard Kelsey. See file COPYING.
; Debugging aids
(define *bad-ids* '())
(define *all-procs?* #f)
(define *checkpoints* '())
(define all-checkpoints
'(node-made
simplify1
protocols
simplify2
node->vector
pre-simplify-proc
envs-added
))
(define (debug-breakpoint loc id data)
(if (and (memq? loc *checkpoints*)
(or (not id)
*all-procs?*
(memq? id *bad-ids*)))
(breakpoint "~S at ~S is ~S" id loc data)))
(define (add-checks . locs)
(receive (okay wrong)
(partition-list (lambda (l) (memq? l all-checkpoints))
locs)
(set! *checkpoints* (union okay *checkpoints*))
(for-each (lambda (l)
(format #t '"~&~S is not a checkpoint~%" l))
wrong)
*checkpoints*))
(define (clear-checks . locs)
(set! *checkpoints*
(if (null? locs)
'()
(set-difference *checkpoints* locs))))
(define (add-procs . locs)
(if (null? locs)
(set! *all-procs?* #t)
(set! *bad-ids* (union locs *bad-ids*))))
(define (clear-procs . locs)
(cond ((null? locs)
(set! *all-procs?* #f)
(set! *bad-ids* '()))
(else
(set! *bad-ids*
(if (null? locs)
'()
(set-difference *bad-ids* locs))))))
(define add-check add-checks)
(define clear-check clear-checks)
(define add-proc add-procs)
(define clear-proc clear-procs)
;------------------------------------------------------------------------------
(define *remove-cells?* #f)
(define *flow-values?* #f)
(define (simplify-all node id)
(debug-breakpoint 'node-made id node)
(simplify-node node)
(debug-breakpoint 'simplify1 id node)
(determine-protocols)
(debug-breakpoint 'protocols id node)
(if (integrate-jump-procs!)
(simplify-node node))
(cond (*remove-cells?*
(remove-cells-from-tree node (make-lambda-list))
(simplify-node node)))
(cond (*flow-values?*
(flow-values node (make-lambda-list))
(simplify-node node)))
(debug-breakpoint 'simplify2 id node)
(values))
(define (determine-protocols)
(walk-lambdas (lambda (l)
(cond ((and (eq? 'proc (lambda-type l))
(node? (node-parent l))
(find-calls l))
=> (lambda (calls)
(determine-lambda-protocol l calls)))))))