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fixed bugs in the racket/trace docs (added docs for two exported parameters and fixed a contract)

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This commit is contained in:
Robby Findler 2010-11-07 14:42:09 -06:00
parent a63bbf82ab
commit c192a1e1f8
1 changed files with 21 additions and 3 deletions
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24
collects/scribblings/reference/trace.scrbl
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@ -81,10 +81,11 @@ trace information during the call, as described above in the docs for
@defparam[current-trace-print-args trace-print-args
(-> symbol?
list?
(listof keyword?)
list?
list?
number?)]{
number?
void?)]{
The value of this parameter is invoked to print out the arguments of a
traced call. It receives the name of the function, the function's
@ -93,7 +94,7 @@ number indicating the depth of the call.
}
@defparam[current-trace-results trace-print-results
@defparam[current-trace-print-results trace-print-results
(-> symbol?
list?
number?
@ -104,3 +105,20 @@ traced call. It receives the name of the function, the function's
results, and a number indicating the depth of the call.
}
@defparam[current-prefix-out prefix string?]{
This string is used by the default value of @racket[current-trace-print-args]
indicating that the current line is showing the a call to a
traced function.
It defaults to @racket[">"].
}
@defparam[current-prefix-out prefix string?]{
This string is used by the default value of @racket[current-trace-print-results]
indicating that the current line is showing the result
of a traced call.
It defaults to @racket["<"].
}