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cleanup
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And remove the relevant getters on `Compiler` and `Queries`.
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By storing the unparsed values in `Config` and then parsing them within
`run_compiler`, the parsing functions can use the main symbol interner,
and not create their own short-lived interners.
This change also eliminates the need for one `EarlyErrorHandler` in
rustdoc, because parsing errors can be reported by another, slightly
later `EarlyErrorHandler`.
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`parse_cfgspecs` and `parse_check_cfg` run very early, before the main
interner is running. They each use a short-lived interner and convert
all interned symbols to strings in their output data structures. Once
the main interner starts up, these data structures get converted into
new data structures that are identical except with the strings converted
to symbols.
All is not obvious from the current code, which is a mess, particularly
with inconsistent naming that obscures the parallel string/symbol data
structures. This commit clean things up a lot.
- The existing `CheckCfg` type is generic, allowing both
`CheckCfg<String>` and `CheckCfg<Symbol>` forms. This is really
useful, but it defaults to `String`. The commit removes the default so
we have to use `CheckCfg<String>` and `CheckCfg<Symbol>` explicitly,
which makes things clearer.
- Introduces `Cfg`, which is generic over `String` and `Symbol`, similar
to `CheckCfg`.
- Renames some things.
- `parse_cfgspecs` -> `parse_cfg`
- `CfgSpecs` -> `Cfg<String>`, plus it's used in more places, rather
than the underlying `FxHashSet` type.
- `CrateConfig` -> `Cfg<Symbol>`.
- `CrateCheckConfig` -> `CheckCfg<Symbol>`
- Adds some comments explaining the string-to-symbol conversions.
- `to_crate_check_config`, which converts `CheckCfg<String>` to
`CheckCfg<Symbol>`, is inlined and removed and combined with the
overly-general `CheckCfg::map_data` to produce
`CheckCfg::<String>::intern`.
- `build_configuration` now does the `Cfg<String>`-to-`Cfg<Symbol>`
conversion, so callers don't need to, which removes the need for
`to_crate_config`.
The diff for two of the fields in `Config` is a good example of the
improved clarity:
```
- pub crate_cfg: FxHashSet<(String, Option<String>)>,
- pub crate_check_cfg: CheckCfg,
+ pub crate_cfg: Cfg<String>,
+ pub crate_check_cfg: CheckCfg<String>,
```
Compare that with the diff for the corresponding fields in `ParseSess`,
and the relationship to `Config` is much clearer than before:
```
- pub config: CrateConfig,
- pub check_config: CrateCheckConfig,
+ pub config: Cfg<Symbol>,
+ pub check_config: CheckCfg<Symbol>,
```
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Stop telling people to submit bugs for internal feature ICEs
This keeps track of usage of internal features, and changes the message to instead tell them that using internal features is not supported.
I thought about several ways to do this but now used the explicit threading of an `Arc<AtomicBool>` through `Session`. This is not exactly incremental-safe, but this is fine, as this is set during macro expansion, which is pre-incremental, and also only affects the output of ICEs, at which point incremental correctness doesn't matter much anyways.
See [MCP 620.](https://github.com/rust-lang/compiler-team/issues/596)
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This keeps track of usage of internal features, and changes the message
to instead tell them that using internal features is not supported.
See MCP 620.
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when its syntax is used.
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Set Arg0 and CommandLineArgs in MCTargetoptions so LLVM outputs correct CL and CMD in LF_DEBUGINFO instead of empty/invalid values.
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rustdoc: Fixes with --test-run-directory and relative paths.
Fixes #112191
Fixes #112210
This fixes some issues with `--test-run-directory` and its interaction with `--runtool` and `--persist-doctests`. Relative directories don't work with `Command::current_dir` very well because it has platform-specific behavior with relative paths. This fixes it by avoiding the use of relative paths.
This is needed because cargo is switching to use `--test-run-directory`, and it uses relative paths when interacting with rustdoc/rustc.
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colored and uncolored printing
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Implement rust-lang/compiler-team#578.
When an ICE is encountered on nightly releases, the new rustc panic
handler will also write the contents of the backtrace to disk. If any
`delay_span_bug`s are encountered, their backtrace is also added to the
file. The platform and rustc version will also be collected.
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Signed-off-by: ozkanonur <work@onurozkan.dev>
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Before, rustdoc was missing `-C passes=list` and the "Available options"
header.
Making these match allows testing that they match exactly.
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Extend `CodegenBackend` trait with a function returning the translation
resources from the codegen backend, which can be added to the complete
list of resources provided to the emitter.
Signed-off-by: David Wood <david.wood@huawei.com>
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Instead of loading the Fluent resources for every crate in
`rustc_error_messages`, each crate generates typed identifiers for its
own diagnostics and creates a static which are pulled together in the
`rustc_driver` crate and provided to the diagnostic emitter.
Signed-off-by: David Wood <david.wood@huawei.com>
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Terminals supporting the OSC8 Hyperlink Extension can support inline
anchors where the text is user defineable but clicking on it opens a
browser to a specified URLs, just like `<a href="URL">` does in HTML.
https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda
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Use `LocalDefId`s instead
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This will use rust_out.exe for doctests on Windows,
rust_out.wasm for doctests in the wasm case, and
also handles cross-compiling or user-provided targets.
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Track where diagnostics were created.
This implements the `-Ztrack-diagnostics` flag, which uses `#[track_caller]` to track where diagnostics are created. It is meant as a debugging tool much like `-Ztreat-err-as-bug`.
For example, the following code...
```rust
struct A;
struct B;
fn main(){
let _: A = B;
}
```
...now emits the following error message:
```
error[E0308]: mismatched types
--> src\main.rs:5:16
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5 | let _: A = B;
| - ^ expected struct `A`, found struct `B`
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| expected due to this
-Ztrack-diagnostics: created at compiler\rustc_infer\src\infer\error_reporting\mod.rs:2275:31
```
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Sort tests at compile time, not at startup
Recently, another Miri user was trying to run `cargo miri test` on the crate `iced-x86` with `--features=code_asm,mvex`. This configuration has a startup time of ~18 minutes. That's ~18 minutes before any tests even start to run. The fact that this crate has over 26,000 tests and Miri is slow makes a lot of code which is otherwise a bit sloppy but fine into a huge runtime issue.
Sorting the tests when the test harness is created instead of at startup time knocks just under 4 minutes out of those ~18 minutes. I have ways to remove most of the rest of the startup time, but this change requires coordinating changes of both the compiler and libtest, so I'm sending it separately.
(except for doctests, because there is no compile-time harness)
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By moving `RenderOptions` out of `Option`, because the two structs' uses
are almost entirely separate.
The only complication is that `unstable_features` is needed in both
structs, but it's a tiny `Copy` type so its duplication seems fine.
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rustc's startup has several layers, including:
- `interface::run_compiler` passes a closure, `f`, to
`run_in_thread_pool_with_globals`, which creates a thread pool, sets
up session globals, and passes `f` to `create_compiler_and_run`.
- `create_compiler_and_run` creates a `Session`, a `Compiler`, sets the
source map, and calls `f`.
rustdoc is a bit different.
- `main_args` calls `main_options` via
`run_in_thread_pool_with_globals`, which (again) creates a thread pool
(hardcoded to a single thread!) and sets up session globals.
- `main_options` has four different paths.
- The second one calls `interface::run_compiler`, which redoes the
`run_in_thread_pool_with_globals`! This is bad.
- The fourth one calls `interface::create_compiler_and_run`, which is
reasonable.
- The first and third ones don't do anything of note involving the
above functions, except for some symbol interning which requires
session globals.
In other words, rustdoc calls into `rustc_interface` at three different
levels. It's a bit confused, and feels like code where functionality has
been added by different people at different times without fully
understanding how the globally accessible stuff is set up.
This commit tidies things up. It removes the
`run_in_thread_pool_with_globals` call in `main_args`, and adjust the
four paths in `main_options` as follows.
- `markdown::test` calls `test::test_main`, which provides its own
parallelism and so doesn't need a thread pool. It had one small use of
symbol interning, which required session globals, but the commit
removes this.
- `doctest::run` already calls `interface::run_compiler`, so it doesn't
need further adjustment.
- `markdown::render` is simple but needs session globals for interning
(which can't easily be removed), so it's now wrapped in
`create_session_globals_then`.
- The fourth path now uses `interface::run_compiler`, which is
equivalent to the old `run_in_thread_pool_with_globals` +
`create_compiler_and_run` pairing.
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It's no longer used.
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