Cuts about 1/3 of the time for a string-hashing microbenchmark
provided by Pedro Ramos:
#lang racket
(define alphabet "abcdefghijklmnopqrstuvwxyz")
(define (random-word n)
(build-string n (lambda (x) (string-ref alphabet (random 26)))))
(define words (for/list ([k 1000000])
(random-word 3)))
(define d (make-hash))
(time (for ([w (in-list words)])
(if (hash-has-key? d w)
(hash-set! d w (add1 (hash-ref d w)))
(hash-set! d w 1))))
When `x` and `x`-with-a-mark are both defined, then the order of
definitions affected the binding that `(provide x)` would export
in a submodule that uses `#f` as its language. The problem was
in the implementation of the implicit `require`, which needs to
look up a variable's symbolic name in two different environments
to set up the right mapping.
Add synchronization so that the enumerated interleavings cover
all of the ones that should be possible.
Using `(sync (system-idle-evt))` as a barrier works as long as
the implementation of the library being tested doesn't itself
use `(sync (system-idle-evt))`. That seems like a safe-enough
assumption for a test.
Fix use of wrong array element during sort, where using the wrong element
caused "Windows source" to be sorted before "Windows (x86, 32-bit)".
(The wrong-element bug was introduced with changed to support the button
that downloads directly from the default mirror.)
Closes PR 14655 and PR 14656
These links reflect soft links that are in place at
"mirror.racket-lang.org", but they're needed as links/rewrite on the
main site for some purposes, such as references from the tech-report
pages.
- make a logger for drracket-related #lang problems
- change read-language's docs to indicate that it can return #f
- adjust a bunch of calls to read-language for the case that it returns #f
with the goal of making that be the same as a get-info function that
always returns the given default
- mention `read-language` in the guide section entitled
"Source-Handling Configuration"
I'm not sure why it was doing this before, but in addition to fixing PR
14644, this should also make the font size slider a lot more responsive.
also, redraw the editor after changing the font size to make sure
the blue arrows get redrawn properly.
closes PR 14644
