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Update the man page with additional --print options
`\:` is a `groff` for `<wbr>` to get better line breaking.
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Implements RFC 1576.
See: https://github.com/rust-lang/rfcs/blob/master/text/1576-macros-literal-matcher.md
Changes are mostly in libsyntax, docs, and tests. Feature gate is
enabled for 1.27.0.
Many thanks to Vadim Petrochenkov for following through code reviews
and suggestions.
Example:
````rust
macro_rules! test_literal {
($l:literal) => {
println!("literal: {}", $l);
};
($e:expr) => {
println!("expr: {}", $e);
};
}
fn main() {
let a = 1;
test_literal!(a);
test_literal!(2);
test_literal!(-3);
}
```
Output:
```
expr: 1
literal: 2
literal: -3
```
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lint: deny incoherent_fundamental_impls by default
Warn the ecosystem of the pending intent-to-disallow in #49799.
There are 4 ICEs on my machine, look unrelated (having happened before in https://github.com/rust-lang/rust/issues/49146#issuecomment-384473523)
```rust
thread 'main' panicked at 'assertion failed: position <= slice.len()', libserialize/leb128.rs:97:1
```
```
[run-pass] run-pass/allocator/xcrate-use2.rs
[run-pass] run-pass/issue-12133-3.rs
[run-pass] run-pass/issue-32518.rs
[run-pass] run-pass/trait-default-method-xc-2.rs
```
r? @nikomatsakis
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stabilize `#[must_use]` for functions and must-use comparison operators (RFC 1940)
r? @nikomatsakis
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Bury Error::description()
Second attempt of #49536 https://github.com/rust-lang/rfcs/pull/2230
The exact wording of the default implementation is still up in the air, but I think it's a detail that can be amended later.
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This is in the matter of RFC 1940 and tracking issue #43302.
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Add "the Rustc book"
This PR introduces a new book into the documentation, "The rustc book". We already have books for Cargo, and for Rustdoc, rustc should have some too. This book is focused on *users* of rustc, and provides a nice place to write documentation for users.
I haven't put content here, but plan on scaffolding it out very soon, and wanted this PR open for a few discussions first. One of those is "what exactly should said TOC be?" I plan on having a proposed one up tomorrow, but figured I'd let people know to start thinking about it now.
The big one is that we also will want to put https://github.com/rust-lang-nursery/rustc-guide in-tree as well, and the naming is... tough. I'm proposing:
* doc.rust-lang.org/rustc is "The Rustc book", to mirror the other tools' books.
* doc.rust-lang.org/rustc-contribution is "The Rustc contribution guide", and contains that book
@nikomatsakis et al, any thoughts on this? I'm not attached to it in particular, but had to put something together to get this discussion going. I think mirroring the other tools is a good idea for this work, but am not sure where exactly that leaves yours.
Fixes https://github.com/rust-docs/team/issues/11
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Remove unnecessary indentation in rustdoc book codeblock.
None
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rustdoc: port the -C option from rustc
Blocked on https://github.com/rust-lang/rust/pull/49864. The included test won't work without those changes, so this PR includes those commits as well.
When documenting items that require certain target features, it helps to be able to force those target features into existence. Rather than include a flag just to parse those features, i instead decided to port the `-C` flag from rustc in its entirety. It takes the same parameters, because it runs through the same parsing function. This has the added benefit of being able to control the codegen of doctests as well.
One concern i have with the flag is that i set it to stable here. My rationale is that it is a direct port of functionality on rustc that is currently stable, used only in mechanisms that it is originally used for. If needed, i can set it back to be unstable.
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Fixes #49608
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Add ok-wrapping to catch blocks, per RFC
Updates the `catch{}` lowering to wrap the result in `Try::from_ok`.
r? @nikomatsakis
Fixes #41414
Fixes #43818
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Implementation of `#[repr(packed(n))]` RFC 1399.
Tracking issue https://github.com/rust-lang/rust/issues/33158.
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Re-write the documentation index
The docs team has decided that we're framing resources in three ways:
"learning Rust," "using Rust," "mastering Rust." This is a more useful
split than "beginner/intermediate/advanced." As we add more resources
in the future, we expect "using Rust" to grow. "the bookshelf" as a
concept is great, but isn't really organized along these lines. As such,
this reorganizes the docs along these lines.
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