in certain situations
Specifically, don't compute the identifiers-hash before opening the
menu but, when it does need to be computed, avoid consider the same
arrows over and over. This makes an especially big difference when a
region of text is selected that contains lots of arrow heads that all
point to a place that has lots of arrows.
Specifically, the time to compute the identifers hash for the example in
the PR is now about 200x faster (altho this still takes 200 msec, which
is why it isn't computed at all in that sequence of steps any more).
closes PR 14586
This checks that the given lambda has the right keywords
wrt to the expected type. Doing this should avoid the bad
arity errors that result from the kw protocol encoding.
Closes PR 13898
The optimizer was willing to convert `(pair? (cons w (random)))` to
`(begin (random) #t)`, but not `(car (cons w (random)))` to
`(begin (random) w)` because the `(car (cons ....))` transformation
required simple ignored arguments. Put the treatment of ignored,
non-omittable arguments of a dropped operation in one place. Also,
recognize expressions within `begin` whose results will be ignored.
Windows parses relative-path links with yet another set of rules ---
slightly different from the many other existing rules for parsing
paths. Unfortunately, a few OS calls don't provide an option for
having the OS follow links, so we have to re-implement (our best guess
at) the OS's parsing of links.
This changes Filters to have a Path as a subcomponent instead of having
the list of Path-Elems and name-ref/c separately. This is part of the
rework to have better object support.
While something like `(if 7 e1 e2)` was already reduced to `e1`,
this improvement makes `(if (let ([x (random)]) 7) e1 e2)`
reduce to `(if (let ([x (random)]) #t) e1 e2)`.
A `--drdr` run shouldn't stop because a discoevered file
disappears (such as one generated temporarily by a test).
Also, use new style for some errors.
original commit: 034acfa514
A `--drdr` run shouldn't stop because a discoevered file
disappears (such as one generated temporarily by a test).
Also, use new style for some errors.
This removes the need for the cache of type variables for instantiating
dotted variables, because we instantiate the uses at once.
Closes PR 14576.
Closes PR 14577.
Closes PR 14579.
Closes PR 14580.
