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Allow args, includes, and splits in file_test includes (#5610)

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This builds a mechanism for the toolchain to construct more complex
min_prelude files, which in turn should allow the toolchain to stop
special-casing the min_prelude directory. For example, instead of:

```
      args.insert(args.end(), {"--custom-core",
                               "--exclude-dump-file-prefix=include_files/"});
```

This should allow (in a `min_prelude` file):

```
// EXTRA-ARGS: --custom-core --exclude-dump-file-prefix=include_files/
```

Then when that min_prelude is included, it'd be used.

But also, this should allow sharing between min_prelude files with use
of `INCLUDE-FILE`, which as we make progressively more complex
min_preludes might become useful.
This commit is contained in:
Jon Ross-Perkins
2025-06-05 16:23:15 +00:00
committed by GitHub
parent a508b00883
commit 51b4abec20
18 changed files with 396 additions and 152 deletions
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testing/file_test/run_test.cpp
+1 -1
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@@ -102,8 +102,8 @@ auto RunTestFile(const FileTestBase& test_base, bool dump_output,
// Process arguments.
if (test_file.test_args.empty()) {
test_file.test_args = test_base.GetDefaultArgs();
test_file.test_args.append(test_file.extra_args);
}
test_file.test_args.append(test_file.extra_args);
CARBON_RETURN_IF_ERROR(DoArgReplacements(
test_file.test_args, test_base.GetArgReplacements(), all_splits));