that it drops from the expansion (like define/public) by
adding them to the origin syntax property (and sometimes
to disappeared-use; see the add-decl-props function
for details on those that aren't in the origin property)
this means that check syntax will now pick them up
so they'll show up in the blue boxes in drracket
Thanks Matthew, for some helpful advice and
comments on an initial version of the commit.
Generalize splitting of `(let-values ([(x ...) (values e ...)]) ....)'
to `(let ([x e] ...) ....)' for any `e', since it's always equivalent.
Right?
(The old requirements on the `e's seem to be needed only for
`letrec-values' splitting and maybe mutable variables.)
Treat unsafe functional operations (which never raise an
exception) as omitable, which means that simple `let-values'
combinations can be split into `let' bindings, etc.
Basically, Racklog (and all versions of schelog) implement ! by
causing the failure continuation of the entire relation being
returned. They did not also cause the unification caused by the
relation to be un-done.
However, it is not easy to separate un-doing the local changes because
the unification just returns a failure continuation too. I had to call
that fail continuation but use state to communicate to its target that
the next clause should not be visited.
I don't know if this is correct. My test suite contains a lot of cut
tests that still pass. Erik's test passes too. But I'm not confident
that this really works.
Internally, there's a `prop:method-arity-error' property that is
used for keyword-accepting methods. The same thing could be
accomplished with `procedure->method', but the new property avoids
a wrapper. It might be nice to expose the property from `racket/base',
but that creates trouble for generating arity errors for keyword-
requiring procedures (i.e., when such a procedure is wrapped), so
keep it provate for now.
Closes PR 12982
Split out base-abbrev.rkt so that subtype is not dependent on abbrev.rkt.
Remove unused code in numeric-tower.rkt so that it is now a dependent of
abbrev.rkt, which allows the body of convenience.rkt to be merged back in.
Remove special casing for union.rkt and extraneous subtyping checks.
Remove union-maker.
conventions in 9.2.1 of the reference (altho the messages do
not yet do the extra level of indenting when a field is too
long, nor are there any field names ending in ...)
Also, fix the docs for the #:stronger argument to
make-contract, make-chaperone-contract, and make-flat-contract
Specifically, it seems like about 20% of the time (in drdr),
running the program
(let l()(l))
in DrRacket and then clicking the break button results in a state
where DrRacket's focus is not in the definitions window. I can't seem
to make this happen on my own machine and I'm not sure if this a
race-condition in the test suite or a real bug in DrRacket but it
seems minor enough (given all of the other focus-based testing that is
happening in this (and related) test suites) that I'm just going to
give up on this particular test.
A progress evt from a close input port must be initially ready,
and the primitive `peek-bytes-avail!' checks a progress evt
before checking whether the port is closed.
These changes resolve a race in `read-bytes-evt' and related evt
constructors.
This is a follow-up to commit ec6f3fd610. We're still
seeing crashes while rendering the "plot" documentation, and this
change seems to make things work on my machine.
Fix tchecking for a rest argument to a function that
is lifted by closure conversion so that one of its
arguments is a mutable local variable's location.
Also reject bytecode that would pass too many arguments
to a lifted function, since that would trigger an arity
error that might try to use a location as a value.
Merge to v5.3
When a `port-commit-peeked' succeeds, position information should
(appear to) be updated. This patch synchronizes commits and
position information for primitive ports, but synchronizing
them for user ports remains a problem.
Convert
(hash-ref <hash> <key-expr> (lambda () <literal>))
to
(hash-ref <hash> <key-expr> <literal>)
which is useful for making the `case' expansion fit
Typed Racket.
appear in saved wxme format files
also, improve the testing support for testing snip loading
(before this, the testing infrastructure could let one test
"leak" into another one in a way that could mask failures)
please include in release branch
