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Tests should not try to manually enable incremental compilation with
`-Cincremental`, because that typically results in stray directories being
created in the repository root.
Instead, use the `//@ incremental` directive, which instructs compiletest to
handle the details of passing `-Cincremental` with a fresh directory.
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`tests/ui`: A New Order [15/N]
> [!NOTE]
>
> Intermediate commits are intended to help review, but will be squashed prior to merge.
Some `tests/ui/` housekeeping, to trim down number of tests directly under `tests/ui/`. Part of rust-lang/rust#133895.
r? `@jieyouxu`
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Prepare for rework done in the rest of [PR143118].
[PR143118]: https://www.github.com/rust-lang/rust/pull/143118
Co-authored-by: Kivooeo <Kivooeo123@gmail.com>
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and migrate most of remaining `error-pattern`s to it.
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Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
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Which enables ui tests to use auxiliary binaries. See the added
self-test for an example.
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To test behaviour that depends on the extern options of intermediate
crates, compiletest auxiliaries must have their own auxiliaries.
Auxiliary compilation previously did not trigger compilation of any
auxiliaries in the auxiliary's headers. In addition, those auxiliaries
would need to be in an `auxiliary/auxiliary` directory, which is
unnecessary and makes some crate graphs harder to write tests for,
such as when A depends on B and C, and B depends on C.
For a test `tests/ui/$path/root.rs`, with the following crate graph:
```
root
|-- grandparent
`-- parent
`-- grandparent
```
then the intermediate outputs from compiletest will be:
```
build/$target/test/ui/$path/
|-- auxiliary
| |-- libgrandparent.dylib
| |-- libparent.dylib
| |-- grandparent
| | |-- grandparent.err
| | `-- grandparent.out
| `-- parent
| |-- parent.err
| `-- parent.out
|-- libroot.rmeta
|-- root.err
`-- root.out
```
Signed-off-by: David Wood <david@davidtw.co>
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