-#![cfg_attr(feature = "deny-warnings", deny(warnings))]
#![feature(rustc_private)]
-#![feature(str_strip)]
+#![cfg_attr(feature = "deny-warnings", deny(warnings))]
+// warn on lints, that are included in `rust-lang/rust`s bootstrap
+#![warn(rust_2018_idioms, unused_lifetimes)]
+// warn on rustc internal lints
+#![deny(rustc::internal)]
// FIXME: switch to something more ergonomic here, once available.
// (Currently there is no way to opt into sysroot crates without `extern crate`.)
-#[allow(unused_extern_crates)]
+extern crate rustc_data_structures;
extern crate rustc_driver;
-#[allow(unused_extern_crates)]
extern crate rustc_errors;
-#[allow(unused_extern_crates)]
extern crate rustc_interface;
-#[allow(unused_extern_crates)]
extern crate rustc_middle;
use rustc_interface::interface;
let conf = clippy_lints::read_conf(&[], &sess);
clippy_lints::register_plugins(&mut lint_store, &sess, &conf);
- clippy_lints::register_pre_expansion_lints(&mut lint_store, &conf);
+ clippy_lints::register_pre_expansion_lints(&mut lint_store);
clippy_lints::register_renamed(&mut lint_store);
}));
#[allow(clippy::find_map, clippy::filter_map)]
fn describe_lints() {
use lintlist::{Level, Lint, ALL_LINTS, LINT_LEVELS};
- use std::collections::HashSet;
+ use rustc_data_structures::fx::FxHashSet;
println!(
"
let scoped = |x: &str| format!("clippy::{}", x);
- let lint_groups: HashSet<_> = lints.iter().map(|lint| lint.group).collect();
+ let lint_groups: FxHashSet<_> = lints.iter().map(|lint| lint.group).collect();
println!("Lint checks provided by clippy:\n");
println!(" {} {:7.7} meaning", padded("name"), "default");
Common options:
-h, --help Print this message
+ --rustc Pass all args to rustc
-V, --version Print version info and exit
Other options are the same as `cargo check`.
pub fn main() {
rustc_driver::init_rustc_env_logger();
lazy_static::initialize(&ICE_HOOK);
- exit(
- rustc_driver::catch_fatal_errors(move || {
- let mut orig_args: Vec<String> = env::args().collect();
-
- if orig_args.iter().any(|a| a == "--version" || a == "-V") {
- let version_info = rustc_tools_util::get_version_info!();
- println!("{}", version_info);
- exit(0);
- }
-
- // Get the sysroot, looking from most specific to this invocation to the least:
- // - command line
- // - runtime environment
- // - SYSROOT
- // - RUSTUP_HOME, MULTIRUST_HOME, RUSTUP_TOOLCHAIN, MULTIRUST_TOOLCHAIN
- // - sysroot from rustc in the path
- // - compile-time environment
- // - SYSROOT
- // - RUSTUP_HOME, MULTIRUST_HOME, RUSTUP_TOOLCHAIN, MULTIRUST_TOOLCHAIN
- let sys_root_arg = arg_value(&orig_args, "--sysroot", |_| true);
- let have_sys_root_arg = sys_root_arg.is_some();
- let sys_root = sys_root_arg
- .map(PathBuf::from)
- .or_else(|| std::env::var("SYSROOT").ok().map(PathBuf::from))
- .or_else(|| {
- let home = std::env::var("RUSTUP_HOME")
- .or_else(|_| std::env::var("MULTIRUST_HOME"))
- .ok();
- let toolchain = std::env::var("RUSTUP_TOOLCHAIN")
- .or_else(|_| std::env::var("MULTIRUST_TOOLCHAIN"))
- .ok();
- toolchain_path(home, toolchain)
- })
- .or_else(|| {
- Command::new("rustc")
- .arg("--print")
- .arg("sysroot")
- .output()
- .ok()
- .and_then(|out| String::from_utf8(out.stdout).ok())
- .map(|s| PathBuf::from(s.trim()))
- })
- .or_else(|| option_env!("SYSROOT").map(PathBuf::from))
- .or_else(|| {
- let home = option_env!("RUSTUP_HOME")
- .or(option_env!("MULTIRUST_HOME"))
- .map(ToString::to_string);
- let toolchain = option_env!("RUSTUP_TOOLCHAIN")
- .or(option_env!("MULTIRUST_TOOLCHAIN"))
- .map(ToString::to_string);
- toolchain_path(home, toolchain)
- })
- .map(|pb| pb.to_string_lossy().to_string())
- .expect("need to specify SYSROOT env var during clippy compilation, or use rustup or multirust");
-
- // Setting RUSTC_WRAPPER causes Cargo to pass 'rustc' as the first argument.
- // We're invoking the compiler programmatically, so we ignore this/
- let wrapper_mode = orig_args.get(1).map(Path::new).and_then(Path::file_stem) == Some("rustc".as_ref());
-
- if wrapper_mode {
- // we still want to be able to invoke it normally though
- orig_args.remove(1);
- }
-
- if !wrapper_mode && (orig_args.iter().any(|a| a == "--help" || a == "-h") || orig_args.len() == 1) {
- display_help();
- exit(0);
- }
-
- let should_describe_lints = || {
- let args: Vec<_> = env::args().collect();
- args.windows(2).any(|args| {
- args[1] == "help"
- && match args[0].as_str() {
- "-W" | "-A" | "-D" | "-F" => true,
- _ => false,
- }
- })
- };
+ exit(rustc_driver::catch_with_exit_code(move || {
+ let mut orig_args: Vec<String> = env::args().collect();
+
+ // Get the sysroot, looking from most specific to this invocation to the least:
+ // - command line
+ // - runtime environment
+ // - SYSROOT
+ // - RUSTUP_HOME, MULTIRUST_HOME, RUSTUP_TOOLCHAIN, MULTIRUST_TOOLCHAIN
+ // - sysroot from rustc in the path
+ // - compile-time environment
+ // - SYSROOT
+ // - RUSTUP_HOME, MULTIRUST_HOME, RUSTUP_TOOLCHAIN, MULTIRUST_TOOLCHAIN
+ let sys_root_arg = arg_value(&orig_args, "--sysroot", |_| true);
+ let have_sys_root_arg = sys_root_arg.is_some();
+ let sys_root = sys_root_arg
+ .map(PathBuf::from)
+ .or_else(|| std::env::var("SYSROOT").ok().map(PathBuf::from))
+ .or_else(|| {
+ let home = std::env::var("RUSTUP_HOME")
+ .or_else(|_| std::env::var("MULTIRUST_HOME"))
+ .ok();
+ let toolchain = std::env::var("RUSTUP_TOOLCHAIN")
+ .or_else(|_| std::env::var("MULTIRUST_TOOLCHAIN"))
+ .ok();
+ toolchain_path(home, toolchain)
+ })
+ .or_else(|| {
+ Command::new("rustc")
+ .arg("--print")
+ .arg("sysroot")
+ .output()
+ .ok()
+ .and_then(|out| String::from_utf8(out.stdout).ok())
+ .map(|s| PathBuf::from(s.trim()))
+ })
+ .or_else(|| option_env!("SYSROOT").map(PathBuf::from))
+ .or_else(|| {
+ let home = option_env!("RUSTUP_HOME")
+ .or(option_env!("MULTIRUST_HOME"))
+ .map(ToString::to_string);
+ let toolchain = option_env!("RUSTUP_TOOLCHAIN")
+ .or(option_env!("MULTIRUST_TOOLCHAIN"))
+ .map(ToString::to_string);
+ toolchain_path(home, toolchain)
+ })
+ .map(|pb| pb.to_string_lossy().to_string())
+ .expect("need to specify SYSROOT env var during clippy compilation, or use rustup or multirust");
- if !wrapper_mode && should_describe_lints() {
- describe_lints();
- exit(0);
- }
+ // make "clippy-driver --rustc" work like a subcommand that passes further args to "rustc"
+ // for example `clippy-driver --rustc --version` will print the rustc version that clippy-driver
+ // uses
+ if let Some(pos) = orig_args.iter().position(|arg| arg == "--rustc") {
+ orig_args.remove(pos);
+ orig_args[0] = "rustc".to_string();
- // this conditional check for the --sysroot flag is there so users can call
- // `clippy_driver` directly
- // without having to pass --sysroot or anything
+ // if we call "rustc", we need to pass --sysroot here as well
let mut args: Vec<String> = orig_args.clone();
if !have_sys_root_arg {
args.extend(vec!["--sysroot".into(), sys_root]);
};
- // this check ensures that dependencies are built but not linted and the final
- // crate is linted but not built
- let clippy_enabled = env::var("CLIPPY_TESTS").map_or(false, |val| val == "true")
- || arg_value(&orig_args, "--cap-lints", |val| val == "allow").is_none();
-
- if clippy_enabled {
- args.extend(vec!["--cfg".into(), r#"feature="cargo-clippy""#.into()]);
- if let Ok(extra_args) = env::var("CLIPPY_ARGS") {
- args.extend(extra_args.split("__CLIPPY_HACKERY__").filter_map(|s| {
- if s.is_empty() {
- None
- } else {
- Some(s.to_string())
- }
- }));
- }
+ return rustc_driver::run_compiler(&args, &mut DefaultCallbacks, None, None);
+ }
+
+ if orig_args.iter().any(|a| a == "--version" || a == "-V") {
+ let version_info = rustc_tools_util::get_version_info!();
+ println!("{}", version_info);
+ exit(0);
+ }
+
+ // Setting RUSTC_WRAPPER causes Cargo to pass 'rustc' as the first argument.
+ // We're invoking the compiler programmatically, so we ignore this/
+ let wrapper_mode = orig_args.get(1).map(Path::new).and_then(Path::file_stem) == Some("rustc".as_ref());
+
+ if wrapper_mode {
+ // we still want to be able to invoke it normally though
+ orig_args.remove(1);
+ }
+
+ if !wrapper_mode && (orig_args.iter().any(|a| a == "--help" || a == "-h") || orig_args.len() == 1) {
+ display_help();
+ exit(0);
+ }
+
+ let should_describe_lints = || {
+ let args: Vec<_> = env::args().collect();
+ args.windows(2)
+ .any(|args| args[1] == "help" && matches!(args[0].as_str(), "-W" | "-A" | "-D" | "-F"))
+ };
+
+ if !wrapper_mode && should_describe_lints() {
+ describe_lints();
+ exit(0);
+ }
+
+ // this conditional check for the --sysroot flag is there so users can call
+ // `clippy_driver` directly
+ // without having to pass --sysroot or anything
+ let mut args: Vec<String> = orig_args.clone();
+ if !have_sys_root_arg {
+ args.extend(vec!["--sysroot".into(), sys_root]);
+ };
+
+ // this check ensures that dependencies are built but not linted and the final
+ // crate is linted but not built
+ let clippy_enabled = env::var("CLIPPY_TESTS").map_or(false, |val| val == "true")
+ || arg_value(&orig_args, "--cap-lints", |val| val == "allow").is_none();
+
+ if clippy_enabled {
+ args.extend(vec!["--cfg".into(), r#"feature="cargo-clippy""#.into()]);
+ if let Ok(extra_args) = env::var("CLIPPY_ARGS") {
+ args.extend(extra_args.split("__CLIPPY_HACKERY__").filter_map(|s| {
+ if s.is_empty() {
+ None
+ } else {
+ Some(s.to_string())
+ }
+ }));
}
- let mut clippy = ClippyCallbacks;
- let mut default = DefaultCallbacks;
- let callbacks: &mut (dyn rustc_driver::Callbacks + Send) =
- if clippy_enabled { &mut clippy } else { &mut default };
- rustc_driver::run_compiler(&args, callbacks, None, None)
- })
- .and_then(|result| result)
- .is_err() as i32,
- )
+ }
+ let mut clippy = ClippyCallbacks;
+ let mut default = DefaultCallbacks;
+ let callbacks: &mut (dyn rustc_driver::Callbacks + Send) =
+ if clippy_enabled { &mut clippy } else { &mut default };
+ rustc_driver::run_compiler(&args, callbacks, None, None)
+ }))
}
projects / rust.git / blobdiff