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Since these functions are only used by the AST quoting syntax extensions, they should be there instead of in the parser.
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Just `sed s/_nopanic//g`. Hopefully makes libsyntax a bit more
readable.
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cc @nagisa
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This is my first code contribution to Rust, so I'm sure there are some issues with the changes I've made.
I've added the `quote_arg!`, `quote_block!`, `quote_path!`, and `quote_meta_item!` quasiquoting macros. From my experience trying to build AST in compiler plugins, I would like to be able to build any AST piece with a quasiquoting macro (e.g., `quote_struct_field!` or `quote_variant!`) and then use those AST pieces in other quasiquoting macros, but this pull request just adds some of the low-hanging fruit.
I'm not sure if these additions are desirable, and I'm sure these macros can be implemented in an external crate if not.
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Did this alphabetically, so I didn't see [how `std` was doing things](https://dxr.mozilla.org/rust/source/src/libstd/lib.rs#215) till I was nearly finished. If you prefer to add crate-level-whitelists like std instead of test-level, I can rebase with that strategy.
A number of these commits can probably be dropped as the crates don't have much to test, and are deprecated. Let me know which if any to drop! (can also squash after review if desired)
r? @steveklabnik
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Emits loc, and node count - before and after expansion.
E.g.,
```
rustc: x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore
Lines of code: 32060
Pre-expansion node count: 120205
Post-expansion node count: 482749
```
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This should help avoid triggering the unused_results lint which can frequently
be turned on.
Closes #29710
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Just `sed s/_nopanic//g`. Hopefully makes libsyntax a bit more
readable.
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This commit adds issue numbers to the vast majority of active feature
gates. The few that are left without issues are rustc/runtime-internal
features that are essentially private APIs.
Closes #28244
r? @huonw
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In particular, attributes are now parsed on fields of tuple variants
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* Delete `sys::unix::{c, sync}` as these are now all folded into libc itself
* Update all references to use `libc` as a result.
* Update all references to the new flat namespace.
* Moves all windows bindings into sys::c
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This should help avoid triggering the unused_results lint which can frequently
be turned on.
Closes #29710
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This commit adds issue numbers to the vast majority of active feature
gates. The few that are left without issues are rustc/runtime-internal
features that are essentially private APIs.
Closes #28244
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[breaking change]
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&format!("...") is the same as "" if we're not doing any interpolation,
and doesn't allocate an intermediate String.
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Closes #29540
r? @huonw
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&format!("...") is the same as "" if we're not doing any interpolation,
and doesn't allocate an intermediate String.
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If you try to put something that's bigger than a char into a char
literal, you get an error:
fn main() {
let c = 'ஶ்ரீ';
}
error: unterminated character constant:
This is a very compiler-centric message. Yes, it's technically
'unterminated', but that's not what you, the user did wrong.
Instead, this commit changes it to
error: character literal that's larger than a char:
As this actually tells you what went wrong.
Fixes #28851
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If you try to put something that's bigger than a char into a char
literal, you get an error:
fn main() {
let c = 'ஶ்ரீ';
}
error: unterminated character constant:
This is a very compiler-centric message. Yes, it's technically
'unterminated', but that's not what you, the user did wrong.
Instead, this commit changes it to
error: character literal may only contain one codepoint
As this actually tells you what went wrong.
Fixes #28851
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Closes #29540
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A set of commits which pushes some panics out of core parser methods, and into users of those parser methods.
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The public set is expanded with trait items, impls and their items, foreign items, exported macros, variant fields, i.e. all the missing parts. Now it's a subset of the exported set.
This is needed for https://github.com/rust-lang/rust/pull/29083 because stability annotation pass uses the public set and all things listed above need to be annotated.
Rustdoc can now be migrated to the public set as well, I guess.
Exported set is now slightly more correct with regard to exported items in blocks - 1) blocks in foreign items are considered and 2) publicity is not inherited from the block's parent - if a function is public it doesn't mean structures defined in its body are public.
r? @alexcrichton or maybe someone else
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None
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This helps for the case where a match, such as below:
```rust
let foo = match foo {
Some(x) => x,
None => 0
};
```
gets refactored to no longer need the match, but the match keyword has been left accidentally:
```rust
let foo = match foo.unwrap_or(0);
```
This can be hard to spot as the expression grows more complex.
r? @alexcrichton
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keyword
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Rename parse_* to parse_*_panic, and add parse_attribute_panic.
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Also add some (regression) tests for discovered parser oddities
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