eb225e395d
Unify the format of rustc cli flags As mentioned in #140102, I unified the format of rustc CLI flags. I use the following rules: 1. `<param>`: Indicates a required parameter 2. `[param]`: Indicates an optional parameter 3. `|`: Indicates a mutually exclusive option 4. `*`: a list element with description Current output: ```bash Usage: rustc [OPTIONS] INPUT Options: -h, --help Display this message --cfg <SPEC> Configure the compilation environment. SPEC supports the syntax `<NAME>[="<VALUE>"]`. --check-cfg <SPEC> Provide list of expected cfgs for checking -L [<KIND>=]<PATH> Add a directory to the library search path. The optional KIND can be one of <dependency|crate|native|framework|all> (default: all). -l [<KIND>[:<MODIFIERS>]=]<NAME>[:<RENAME>] Link the generated crate(s) to the specified native library NAME. The optional KIND can be one of <static|framework|dylib> (default: dylib). Optional comma separated MODIFIERS <bundle|verbatim|whole-archive|as-needed> may be specified each with a prefix of either '+' to enable or '-' to disable. --crate-type <bin|lib|rlib|dylib|cdylib|staticlib|proc-macro> Comma separated list of types of crates for the compiler to emit --crate-name <NAME> Specify the name of the crate being built --edition <2015|2018|2021|2024|future> Specify which edition of the compiler to use when compiling code. The default is 2015 and the latest stable edition is 2024. --emit <TYPE>[=<FILE>] Comma separated list of types of output for the compiler to emit. Each TYPE has the default FILE name: * asm - CRATE_NAME.s * llvm-bc - CRATE_NAME.bc * dep-info - CRATE_NAME.d * link - (platform and crate-type dependent) * llvm-ir - CRATE_NAME.ll * metadata - libCRATE_NAME.rmeta * mir - CRATE_NAME.mir * obj - CRATE_NAME.o * thin-link-bitcode - CRATE_NAME.indexing.o --print <INFO>[=<FILE>] Compiler information to print on stdout (or to a file) INFO may be one of <all-target-specs-json|calling-conventions|cfg|check-cfg|code-models|crate-name|crate-root-lint-levels|deployment-target|file-names|host-tuple|link-args|native-static-libs|relocation-models|split-debuginfo|stack-protector-strategies|supported-crate-types|sysroot|target-cpus|target-features|target-libdir|target-list|target-spec-json|tls-models>. -g Equivalent to -C debuginfo=2 -O Equivalent to -C opt-level=3 -o <FILENAME> Write output to FILENAME --out-dir <DIR> Write output to compiler-chosen filename in DIR --explain <OPT> Provide a detailed explanation of an error message --test Build a test harness --target <TARGET> Target triple for which the code is compiled -A, --allow <LINT> Set lint allowed -W, --warn <LINT> Set lint warnings --force-warn <LINT> Set lint force-warn -D, --deny <LINT> Set lint denied -F, --forbid <LINT> Set lint forbidden --cap-lints <LEVEL> Set the most restrictive lint level. More restrictive lints are capped at this level -C, --codegen <OPT>[=<VALUE>] Set a codegen option -V, --version Print version info and exit -v, --verbose Use verbose output Additional help: -C help Print codegen options -W help Print 'lint' options and default settings -Z help Print unstable compiler options --help -v Print the full set of options rustc accepts ```
This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.
Why Rust?
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Performance: Fast and memory-efficient, suitable for critical services, embedded devices, and easily integrated with other languages.
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Reliability: Our rich type system and ownership model ensure memory and thread safety, reducing bugs at compile-time.
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Productivity: Comprehensive documentation, a compiler committed to providing great diagnostics, and advanced tooling including package manager and build tool (Cargo), auto-formatter (rustfmt), linter (Clippy) and editor support (rust-analyzer).
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