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# Run rustfmt with this config (it should be picked up automatically).
style_edition = "2024"
use_small_heuristics = "Max"
merge_derives = false
group_imports = "StdExternalCrate"
imports_granularity = "Module"
# Files to ignore. Each entry uses gitignore syntax, but `!` prefixes aren't allowed.
ignore = [
"/build/",
"/*-build/",
"/build-*/",
"/vendor/",
# Some tests are not formatted, for various reasons.
"/tests/codegen/simd-intrinsic/", # Many types like `u8x64` are better hand-formatted.
"/tests/crashes/", # Many of these tests contain syntax errors.
"/tests/debuginfo/", # These tests are somewhat sensitive to source code layout.
"/tests/incremental/", # These tests are somewhat sensitive to source code layout.
"/tests/pretty/", # These tests are very sensitive to source code layout.
"/tests/run-make/translation/test.rs", # This test contains syntax errors.
"/tests/rustdoc/", # Some have syntax errors, some are whitespace-sensitive.
"/tests/rustdoc-gui/", # Some tests are sensitive to source code layout.
"/tests/rustdoc-ui/", # Some have syntax errors, some are whitespace-sensitive.
"/tests/ui/", # Some have syntax errors, some are whitespace-sensitive.
"/tests/ui-fulldeps/", # Some are whitespace-sensitive (e.g. `// ~ERROR` comments).
# Do not format submodules.
# FIXME: sync submodule list with tidy/bootstrap/etc
# tidy/src/walk.rs:filter_dirs
"library/backtrace",
"library/portable-simd",
"library/stdarch",
"src/doc/book",
"src/doc/edition-guide",
"src/doc/embedded-book",
"src/doc/nomicon",
"src/doc/reference",
"src/doc/rust-by-example",
"src/doc/rustc-dev-guide",
"src/llvm-project",
"src/tools/cargo",
"src/tools/clippy",
"src/tools/miri",
"src/tools/rust-analyzer",
"src/tools/rustc-perf",
"src/tools/rustfmt",
"src/gcc",
# These are ignored by a standard cargo fmt run.
"compiler/rustc_codegen_cranelift/scripts",
"compiler/rustc_codegen_cranelift/example/gen_block_iterate.rs", # uses edition 2024
"compiler/rustc_codegen_gcc/tests",
# Code automatically generated and included.
"compiler/rustc_codegen_gcc/src/intrinsic/archs.rs",
"compiler/rustc_codegen_gcc/example",
]
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