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Follow up https://github.com/rust-lang/rust/pull/127127
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and migrate most of remaining `error-pattern`s to it.
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rustdoc: Fix doctest heuristic for main fn wrapping
Fixes #140412 which regressed in #140220 that I reviewed. As mentioned in https://github.com/rust-lang/rust/pull/140220#issuecomment-2837061779, at the time I didn't have the time to re-review its latest changes and should've therefore invalided my previous "r=me" and blocked the PR on another review given the fragile nature of the doctest impl. This didn't happen which is my fault.
Contains some other small changes. Diff best reviewed modulo whitespace.
r? ``@GuillaumeGomez``
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Fix detection of main function if there are expressions around it
Fixes #140162.
Fixes #139651.
Once this is merged, we can backport and I'll send a follow-up to emit a warning in case a `main` function is about to be "wrapped" (and therefore not run).
r? `@fmease`
try-job: x86_64-mingw-1
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a function
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r=davidtwco,Urgau,traviscross
Stabilize `cfg_boolean_literals`
Closes #131204
`@rustbot` labels +T-lang +I-lang-nominated
This will end up conflicting with the test in #138293 so whichever doesn't land first will need updating
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# Stabilization Report
## General design
### What is the RFC for this feature and what changes have occurred to the user-facing design since the RFC was finalized?
[RFC 3695](https://github.com/rust-lang/rfcs/pull/3695), none.
### What behavior are we committing to that has been controversial? Summarize the major arguments pro/con.
None
### Are there extensions to this feature that remain unstable? How do we know that we are not accidentally committing to those?
None
## Has a call-for-testing period been conducted? If so, what feedback was received?
Yes; only positive feedback was received.
## Implementation quality
### Summarize the major parts of the implementation and provide links into the code (or to PRs)
Implemented in [#131034](https://github.com/rust-lang/rust/pull/131034).
### Summarize existing test coverage of this feature
- [Basic usage, including `#[cfg()]`, `cfg!()` and `#[cfg_attr()]`](https://github.com/rust-lang/rust/blob/6d71251cf9e40326461f90f8ff9a7024706aea87/tests/ui/cfg/true-false.rs)
- [`--cfg=true/false` on the command line being accessible via `r#true/r#false`](https://github.com/rust-lang/rust/blob/6d71251cf9e40326461f90f8ff9a7024706aea87/tests/ui/cfg/raw-true-false.rs)
- [Interaction with the unstable `#[doc(cfg(..))]` feature](https://github.com/rust-lang/rust/tree/6d71251/tests/rustdoc-ui/cfg-boolean-literal.rs)
- [Denying `--check-cfg=cfg(true/false)`](https://github.com/rust-lang/rust/tree/6d71251/tests/ui/check-cfg/invalid-arguments.rs)
- Ensuring `--cfg false` on the command line doesn't change the meaning of `cfg(false)`: `tests/ui/cfg/cmdline-false.rs`
- Ensuring both `cfg(true)` and `cfg(false)` on the same item result in it being disabled: `tests/ui/cfg/both-true-false.rs`
### What outstanding bugs in the issue tracker involve this feature? Are they stabilization-blocking?
The above mentioned issue; it should not block as it interacts with another unstable feature.
### What FIXMEs are still in the code for that feature and why is it ok to leave them there?
None
### Summarize contributors to the feature by name for recognition and assuredness that people involved in the feature agree with stabilization
- `@clubby789` (RFC)
- `@Urgau` (Implementation in rustc)
### Which tools need to be adjusted to support this feature. Has this work been done?
`rustdoc`'s unstable`#[doc(cfg(..)]` has been updated to respect it. `cargo` has been updated with a forward compatibility lint to enable supporting it in cargo once stabilized.
## Type system and execution rules
### What updates are needed to the reference/specification? (link to PRs when they exist)
A few lines to be added to the reference for configuration predicates, specified in the RFC.
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Report line number of test when should_panic test failed
Closes #137405
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try-job: x86_64-gnu-llvm-19-3
try-job: test-various
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Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
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when possible.
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Fix breakage when running compiletest with `--test-args=--edition=2015`
Compiletest has an `--edition` flag to change the default edition tests are run with. Unfortunately no test suite successfully executes when that flag is passed. If the edition is set to something greater than 2015 the breakage is expected, since the test suite currently supports only edition 2015 (Ferrous Systems will open an MCP about fixing that soonish). Surprisingly, the test suite is also broken if `--edition=2015` is passed to compiletest. This PR focuses on fixing the latter.
This PR fixes the two categories of failures happening when `--edition=2015` is passed:
* Some edition-specific tests set their edition through `//@ compile-flags` instead of `//@ edition`. Compiletest doesn't parse the compile flags, so it would see no `//@ edition` and add another `--edition` flag, leading to a rustc error.
* Compiletest would add the edition after `//@ compile-flags`, while some tests depend on flags passed to `//@ compile-flags` being the last flags in the rustc invocation.
Note that for the first category, I opted to manually go and replace all `//@ compile-flags` setting an edition with an explicit `//@ edition`. We could've changed compiletest to instead check whether an edition was set in `//@ compile-flags`, but I thought it was better to enforce a consistent way to set the edition in tests.
I also added the edition to the stamp, so that changing `--edition` results in tests being re-executed.
r? `@jieyouxu`
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We should enable these to avoid misinterpreting uses of the extended
syntax as code blocks. This happens in practice with multi-paragraph
footnotes, as discovered in #139064.
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Fix 2024 edition doctest panic output
Fixes #137970.
The problem was that the output was actually displayed by rustc itself because we're exiting with `Result<(), String>`, and the display is really not great. So instead, we get the output, we print it and then we return an `ExitCode`.
r? ````@aDotInTheVoid````
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Greatly simplify doctest parsing and information extraction
The original process was pretty terrible, as it tried to extract information such as attributes by performing matches over tokens like `#!`, which doesn't work very well considering you can have `# ! [`, which is valid.
Also, it now does it in one pass: if the parser is happy, then we try to extract information, otherwise we return early.
r? `@fmease`
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outside of wrapping function
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r=notriddle
Ignore doctests only in specified targets
Quick fix for #138863
FIxes #138863
cc `@yotamofek` `@notriddle`
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add necessary lines
fix ui test error
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rustdoc: Gate unstable `doc(cfg())` predicates
Fixes #138113
Since the extraction process treats `cfg(true)` as having no cfg attribute, we have to do the gating during parsing; so we remove the unused `features` arg from `Cfg::matches`
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This commit fixes an internal compiler error (ICE) that occurs when
rustdoc attempts to process macros with a remapped filename. The issue
arose during macro expansion when the `--remap-path-prefix` option was
used.
Instead of passing remapped filenames through, which would trigger the
"attempted to remap an already remapped filename" panic, we now
extract the original local path from remapped filenames before
processing them.
A test case has been added to verify this behavior.
Fixes #138520
Signed-off-by: Charalampos Mitrodimas <charmitro@posteo.net>
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For macros that are implemented on the compiler, we do *not* mention the `-Zmacro-backtrace` flag. This includes `derive`s and standard macros.
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This prevents the included test case from getting at nightly-only
features when run on stable. The harness builds with
RUSTC_BOOTSTRAP, but the bundle doesn't.
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rustdoc: when merging target features, keep the highest stability
This addresses https://github.com/rust-lang/rust/issues/137366. (Not closing since we might consider a backport.)
rustdoc wants to pretend that it runs for all targets at once and has all target features, so `tcx.rust_target_features()` will actually be all the target features. For target features that exist on multiple targets, the stability info for one of the targets will be picked (first or last in the list, I guess). All the code consuming that query has to be aware that the data is basically nonsense when running in rustdoc, but the logic checking for unstable or forbidden `#[target_feature]` attributes was not aware of that.
This PR makes the `tcx.rust_target_features()` info in rustdoc slightly less nonsensical (and decidedly less random) by having the "most stable" target feature take precedent. That deals with #137366 (a conflict between a stable and a "forbidden" target feature of the same name for different targets), and also deals with the situation (that we did not seem to have yet) of a conflict between a stable and an unstable target feature of the same name. Note that if there are two unstable target features of the same name, rustdoc might still require the "wrong" nightly feature to be enabled -- but this can only possibly affect unstable code so I guess we can wait until that actually happens, and then someone will have to rewrite this entire thing to be less hacky.
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Enable `relative-path-include-bytes-132203` rustdoc-ui test on Windows
The problem with the error message on Windows is:
- The path separators are different
- The OS error message string is different
Normalizing those two things makes the test pass on Windows.
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This commit takes advantage of a feature in pulldown-cmark that
makes the list of link definitions available to the consuming
application. It produces unresolved link warnings for refdefs
that aren't used, and can now produce exact spans for the dest
even when it has escapes.
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Correctly escape hashtags when running `invalid_rust_codeblocks` lint
Fixes #136899.
We forgot to use `map_line` when we wrote this lint.
r? ``@notriddle``
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```
error[E0610]: `{integer}` is a primitive type and therefore doesn't have fields
--> $DIR/attempted-access-non-fatal.rs:7:15
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LL | let _ = 2.l;
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help: if intended to be a floating point literal, consider adding a `0` after the period and a `f64` suffix
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LL - let _ = 2.l;
LL + let _ = 2.0f64;
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```
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