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cleanup, tentatively annotating all top-level-vars

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This commit is contained in:
John Clements 2011-06-29 12:44:35 -07:00
parent e88ec555bb
commit d81a95ef26
2 changed files with 25 additions and 12 deletions
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3
collects/stepper/internal-docs.txt
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@ -170,6 +170,9 @@ stepper-binding-type :
[ 'macro-bound ] : this variable's binding was inserted by a macro
[ 'let-bound ] : this variable's binding was in a let/*/rec
[ 'lambda-bound ] : this variable's binding was in a lambda
[ 'non-lexical ] : this variable's identifier-binding is not
'lexical (i.e., unbound, top-level, or a module binding
stepper-no-lifting-info :
this label is applied to a let-bound-variable whose binding is not

34
collects/stepper/private/annotate.rkt
View File

@ -105,7 +105,8 @@
; label-var-types returns a syntax object which is identical to the
; original except that the variable references are labeled with the
; stepper-syntax-property 'stepper-binding-type, which is set to either
; let-bound, lambda-bound, or non-lexical.
; let-bound, lambda-bound, or non-lexical. (It can also be 'macro-bound, set
; earlier during macro expansion.)
(define (top-level-rewrite stx)
(let loop ([stx stx]
@ -811,21 +812,25 @@
[varref-no-break-wrap
(lambda ()
(outer-wcm-wrap (make-debug-info-normal free-varrefs) var))]
;; JBC: shouldn't this be the namespace of the user's code... ?
[base-namespace-symbols (namespace-mapped-symbols (make-base-namespace))]
[top-level-varref-break-wrap
[module-bound-varref-break-wrap
(lambda ()
(if (or (memq (syntax-e var) beginner-defined:must-reduce)
(varref-break-wrap)
#;(if (or (memq (syntax-e var) beginner-defined:must-reduce)
(and (stepper-syntax-property var 'lazy-op)
(not (memq (syntax->datum var) base-namespace-symbols))))
(varref-break-wrap)
(varref-no-break-wrap)))])
(vector
(case (stepper-syntax-property var 'stepper-binding-type)
((lambda-bound macro-bound) (varref-no-break-wrap))
((let-bound) (varref-break-wrap))
((non-lexical) ;; is it from this module or not?
(match (identifier-binding var)
(#f (top-level-varref-break-wrap))
(match (stepper-syntax-property var 'stepper-binding-type)
[(or 'lambda-bound 'macro-bound) (varref-no-break-wrap)]
['let-bound (varref-break-wrap)]
['non-lexical ;; is it from this module or not?
(match (identifier-binding var)
;; this can only come up when stepping through non-module code...
;; perhaps we should just signal an error here.
(#f (varref-break-wrap))
['lexical
;; my reading of the docs suggest that this should not occur in v4...
(error 'varref-abstraction
@ -833,14 +838,19 @@
[(list-rest (? module-path-index? path-index) dontcare)
(let-values ([(module-path dc5)
(module-path-index-split path-index)])
(if module-path
(if module-path
;; not a module-local variable:
(top-level-varref-break-wrap)
(module-bound-varref-break-wrap)
;; a module-local-variable:
(varref-break-wrap)))]
[other (error
'annotate
"unexpected value for identifier-binding: ~v" other)])))
"unexpected value for identifier-binding: ~v" other)])]
[other
(error 'annotate
"unexpected value for stepper-binding-type on variable ~e: ~e"
(syntax->datum var)
other)])
free-varrefs)))
(define (recertifier vals)