Fixes#23968.
Since the values are stored in a u64 internally, we need to be mask away the
high bits after applying the ! operator. Otherwise, these bits will be set to
one, causing overflow.
A built-in feature enabling the dereferencing of newtype structs was removed
in PR https://github.com/rust-lang/rust/pull/11188, and this error (E0068) was added at the same time to warn of
its removal. It seems to make sense to remove the error now, given that
the obsolete feature it is warning about was removed nearly a year and a
half ago.
Constants with values that depend on generic parameters or `Self` cause
ICEs in `check_const`, and are not yet accepted via RFC, so we need to
throw a proper error in these cases.
This reverts commit 9c7d5ae57c.
This was wrong... the `continue` was to ignore the latter half of the
tokens file. Another mechanism will have to be used to keep the model
grammar's tokens in sync with the actual grammar's tokens :-/
Since the values are stored in a u64 internally, we need to be mask away the
high bits after applying the ! operator. Otherwise, these bits will be set to
one, causing overflow.
The current version of the example won't compile due to unstable features.
This is an attempt to fix that, at the cost of slightly more verbose code.
Using rust 1.0.0 (a59de37e9).
It might be obvious, but I'm not well versed with rust, so feedback is very welcome.
This PR fixes two little typos in the Dining Philosophers example.
Also, there are two style points that may have been oversights but may have been deliberate, so I'll just bring them up here:
1) In the last paragraph, you say
> You’ll notice we can introduce a new binding to `table` here, and it will shadow the old one. This is often used so that you don’t need to come up with two unique names.
You already said something similar to this in the Guessing Game, but maybe you intended for this example to be independent of that one.
2) In "Rust Inside Other Languages," you introduce the idea of the "global interpreter lock" and then refer to it as the GIL a few paragraphs later without explicitly stating that GIL == global interpreter lock. It's reasonable to expect readers to make the connection, but maybe that's not what you intended.
Excellent work on the examples! Congrats on 1.0!
r? @steveklabnik
A built-in feature enabling the dereferencing of newtype structs was removed
in PR #11188, and this error (E0068) was added at the same time to warn of
its removal. It seems to make sense to remove the error now, given that
the obsolete feature it is warning about was removed nearly a year and a
half ago.
This allows compiling entire crates from memory or preprocessing source files before they are tokenized.
Minor API refactoring included, which is a [breaking-change] for libsyntax users:
* `ParseSess::{next_node_id, reserve_node_ids}` moved to rustc's `Session`
* `new_parse_sess` -> `ParseSess::new`
* `new_parse_sess_special_handler` -> `ParseSess::with_span_handler`
* `mk_span_handler` -> `SpanHandler::new`
* `default_handler` -> `Handler::new`
* `mk_handler` -> `Handler::with_emitter`
* `string_to_filemap(sess source, path)` -> `sess.codemap().new_filemap(path, source)`
