by-reference upvars.
This partially implements RFC 38. A snapshot will be needed to turn this
on, because stage0 cannot yet parse the keyword.
Part of #12831.
r? @alexcrichton
by-reference upvars.
This partially implements RFC 38. A snapshot will be needed to turn this
on, because stage0 cannot yet parse the keyword.
Part of #12381.
We shouldn't be setting conceallevel in the syntax file. Besides not
being able to undo this if we switch to another syntax later, it also
interferes with embedding rust in other filetypes (such as markdown).
Instead, set it in the ftplugin, where it belongs.
Currently, the Timer methods take an integer number of ms. This is considered a bug because a) types, b) some timers have ns precision.
This plucks the `Duration` type from [rust-chrono](https://github.com/lifthrasiir/rust-chrono), plops it into `std::time`, and replaces the arguments to `sleep`, `oneshot`, and `periodic` timers with it. It leaves the old methods intact as `sleep_ms`, `oneshot_ms`, and `periodic_ms`, for convenience.
Closes https://github.com/rust-lang/rust/issues/11189.
cc @lifthrasiir @aturon @kballard @alexcrichton
Put `Duration` in `time::duration`, where the two constants can
be called just `MAX` and `MIN`. Reexport from `time`.
This provides more room for the time module to expand.
Rename io::timer::sleep, Timer::sleep, Timer::oneshot,
Timer::periodic, to sleep_ms, oneshot_ms, periodic_ms. These functions
all take an integer and interpret it as milliseconds.
Replacement functions will be added that take Duration.
[breaking-change]
These are like the existing bsearch methods but if the search fails,
it returns the next insertion point.
The new `binary_search` returns a `BinarySearchResult` that is either
`Found` or `NotFound`. For convenience, the `found` and `not_found`
methods convert to `Option`, ala `Result`.
Deprecate bsearch and bsearch_elem.
This required some contortions because importing both raw::Slice
and slice::Slice makes rustc crash.
Since `Slice` is in the prelude, this renaming is unlikely to
casue breakage.
[breaking-change]
ImmutableVector -> ImmutableSlice
ImmutableEqVector -> ImmutableEqSlice
ImmutableOrdVector -> ImmutableOrdSlice
MutableVector -> MutableSlice
MutableVectorAllocating -> MutableSliceAllocating
MutableCloneableVector -> MutableCloneableSlice
MutableOrdVector -> MutableOrdSlice
These are all in the prelude so most code will not break.
[breaking-change]
I chose to make two of them because I wanted something close to an
"end-to-end" test (*), but at the same time I wanted a test that
would run on Windows (**).
(*) The run-make test serves as the end-to-end: It constructs an input
that is trying to subvert the hack and we are going to check that it
fails in the attempt).
(**) The compile-fail-fulldeps test serves as a more narrow test that
will be tested on all platforms. It also attempts to subvert the
hack, testing that when you use `new_parser_from_tts`, the resulting
parser does not support reading embedded Idents.
This adds support to `quote_expr!` and friends for round-trip hygienic
preservation of Ident.
Here are the pieces of the puzzle:
* adding a method for encoding Ident for re-reading into token tree.
* Support for reading such encoded Idents in the lexer. Note that one
must peek ahead for MOD_SEP after scan_embedded_hygienic_ident.
* To ensure that encoded Idents are only read when we are in the midst
of expanding a `quote_expr` or similar, added a
`read_embedded_ident` flag on `StringReader`.
* pprust support for encoding Ident's as (uint,uint) pairs (for hygiene).
