Yet another attempt to make the prose on the std crate page
clearer and more informative.
This does a lot of things: tightens up the opening, adds useful links
(including a link to the search bar), offers guidance on how to use
the docs, and expands the prelude docs as a useful newbie entrypoint.
This PR will enable RUSTC to generate PDB debuginfo files when targeting the MSVC toolchain. Mind that these are not full featured PDB files -- they just contain line tables, so you can get proper backtraces and step through your code, but variable values can't be inspected. We are just levering (LLVM's current support)[http://clang.llvm.org/docs/MSVCCompatibility.html] for creating Windows debuginfo. When LLVM's support gets better, we should benefit from that too without much effort.
I also wanted to include some kind of auto test with this PR but I could not get the `rmake` tests to work properly when targeting MSVC.
EDIT:
Closes#19533
Currently errorck yields bogus `duplicate error code` messages when an error code occurs inside of a long diagnostic message (see https://github.com/rust-lang/rust/pull/26982), because errorck just goes line by line checking for error codes and recording them all.
A simplistic approach to fixing this is just to detect the beginning of a long diagnostic raw string literal (`r##"`) and skip lines until the end of the raw string literal is encountered. I'm not completely confident in this approach, but I think a more robust approach would be more complicated and I wanted to get feedback before pursuing that.
This commit expands the follow set of the `ty` and `path` macro fragments to
include the semicolon token as well. A semicolon is already allowed after these
tokens, so it's currently a little too restrictive to not have a semicolon
allowed. For example:
extern {
fn foo() -> i32; // semicolon after type
}
fn main() {
struct Foo;
Foo; // semicolon after path
}
If we match a whole struct or tuple, the "field" for the reassignment
checker will be "None" which means that mutating any field should count
as a reassignment.
Fixes#26996.
If we match a whole struct or tuple, the "field" for the reassignment
checker will be "None" which means that mutating any field should count
as a reassignment.
Fixes#26996.
This resolves#26845.
I'm not entirely satisfied with the placement of the rounding discussion in the docs for the `Div` and `Rem` traits, but I couldn't come up with anywhere better to put it. Suggestions are welcome.
I didn't add any discussion of rounding to the `checked_div` (or rem) or `wrapping_div` documentation because those seem to make it pretty clear that they do the same thing as `Div`.
Inspired by the now-mysteriously-closed https://github.com/rust-lang/rust/pull/26782.
This PR introduces better error messages when unicode escapes have invalid format (e.g. `\uFFFF`). It also makes rustc always tell the user that escape may not be used in byte-strings and bytes and fixes some spans to not include unecessary characters and include escape backslash in some others.
TLS tests have been deadlocking on the OSX bots for quite some time now and this
commit is the result of the investigation into what's going on. It turns out
that a value in TLS which is being destroyed (e.g. the destructor is run) can be
reset back to the initial state **while the destructor is running** if TLS is
re-accessed.
To fix this we stop calling drop_in_place on OSX and instead move the data to a
temporary location on the stack.
This commit expands the follow set of the `ty` and `path` macro fragments to
include the semicolon token as well. A semicolon is already allowed after these
tokens, so it's currently a little too restrictive to not have a semicolon
allowed. For example:
extern {
fn foo() -> i32; // semicolon after type
}
fn main() {
struct Foo;
Foo; // semicolon after path
}
TLS tests have been deadlocking on the OSX bots for quite some time now and this
commit is the result of the investigation into what's going on. It turns out
that a value in TLS which is being destroyed (e.g. the destructor is run) can be
reset back to the initial state **while the destructor is running** if TLS is
re-accessed.
To fix this we stop calling drop_in_place on OSX and instead move the data to a
temporary location on the stack.
This PR modernizes some names in the type checker. The only remaining snake_case name in ty.rs is `ctxt` which should be resolved by @eddyb's pending refactor. We can bike shed over the names, it would just be nice to bring the type checker inline with modern Rust.
r? @eddyb
cc @nikomatsakis
Use escaped byte string representation for CString Debug
Faithfully represent the contents of the CString and CStr in their Debug
impl, by treating them as byte strings with our default escaping to
ascii representation.
Add impl Debug for CStr.
Fixes#26964.
The very first code fragment off every struct and trait documentation page generates wrong playground code. This pull request adjusts ```playpen.js``` to only create a link for real examples.
Documentation:
```rust
pub struct String {
// some fields omitted
}
```
Playground:
```rust
Struct std::String
[−]
[src]
```
r? @steveklabnik
Avoids some code duplication and relies less on deprecated properties on `KeyboardEvent`. The code is still looking quite bad, but that’s primarily because interop in this area is a disaster zone.
Sharpens the help dialogues edges by removing border-padding, which
matches better with the rest of the document.
Also increases somewhat the rounded edges of the key symbols to
make it clear they are symbols.
Also introduces closing apostrophes and ellipsis for search field
placeholder.
Faithfully represent the contents of the CString and CStr in their Debug
impl, by treating them as byte strings with our default escaping to
ascii representation.
Add impl Debug for Cstr.
Fixes#26964.
I noticed in docs, specifically http://doc.rust-lang.org/std/primitive.u8.html#method.is_power_of_two, that it was like this, and it was apparently in multiple places too.
Didn't change any occurrences through the cross-depo things. There's a lot in /src/llvm/ for instance, but I'm not confident on how to go about sending fixes for those, so this is just what's in the base rust depo.
r? @steveklabnik
Brian Anderson
bors
Björn Steinbrink
Nick Hamann
William Throwe
Nick Cameron
Simonas Kazlauskas
Alex Crichton
Wei-Ming Yang
Michael Woerister
Pavel Pravosud
Manish Goregaokar
Jonathan Reem
Tshepang Lekhonkhobe
jethrogb
Ulrik Sverdrup