mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-01 00:49:30 +00:00
545 lines
20 KiB
Rust
545 lines
20 KiB
Rust
#![feature(type_macros)]
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#![feature(plugin_registrar, box_syntax)]
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#![feature(rustc_private, collections)]
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#![feature(iter_arith)]
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#![feature(custom_attribute)]
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#![feature(slice_patterns)]
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#![feature(question_mark)]
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#![feature(stmt_expr_attributes)]
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#![allow(indexing_slicing, shadow_reuse, unknown_lints)]
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extern crate rustc_driver;
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extern crate getopts;
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use rustc_driver::{driver, CompilerCalls, RustcDefaultCalls, Compilation};
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use rustc::session::{config, Session};
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use rustc::session::config::{Input, ErrorOutputType};
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use syntax::diagnostics;
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use std::path::PathBuf;
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struct ClippyCompilerCalls(RustcDefaultCalls);
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impl std::default::Default for ClippyCompilerCalls {
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fn default() -> Self {
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Self::new()
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}
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}
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impl ClippyCompilerCalls {
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fn new() -> Self {
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ClippyCompilerCalls(RustcDefaultCalls)
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}
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}
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impl<'a> CompilerCalls<'a> for ClippyCompilerCalls {
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fn early_callback(&mut self,
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matches: &getopts::Matches,
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sopts: &config::Options,
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descriptions: &diagnostics::registry::Registry,
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output: ErrorOutputType)
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-> Compilation {
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self.0.early_callback(matches, sopts, descriptions, output)
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}
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fn no_input(&mut self,
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matches: &getopts::Matches,
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sopts: &config::Options,
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odir: &Option<PathBuf>,
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ofile: &Option<PathBuf>,
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descriptions: &diagnostics::registry::Registry)
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-> Option<(Input, Option<PathBuf>)> {
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self.0.no_input(matches, sopts, odir, ofile, descriptions)
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}
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fn late_callback(&mut self,
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matches: &getopts::Matches,
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sess: &Session,
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input: &Input,
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odir: &Option<PathBuf>,
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ofile: &Option<PathBuf>)
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-> Compilation {
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self.0.late_callback(matches, sess, input, odir, ofile)
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}
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fn build_controller(&mut self, sess: &Session, matches: &getopts::Matches) -> driver::CompileController<'a> {
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let mut control = self.0.build_controller(sess, matches);
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let old = std::mem::replace(&mut control.after_parse.callback, box |_| {});
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control.after_parse.callback = Box::new(move |state| {
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{
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let mut registry = rustc_plugin::registry::Registry::new(state.session, state.krate.as_ref().expect("at this compilation stage the krate must be parsed"));
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registry.args_hidden = Some(Vec::new());
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plugin_registrar(&mut registry);
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let rustc_plugin::registry::Registry { early_lint_passes, late_lint_passes, lint_groups, llvm_passes, attributes, mir_passes, .. } = registry;
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let sess = &state.session;
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let mut ls = sess.lint_store.borrow_mut();
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for pass in early_lint_passes {
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ls.register_early_pass(Some(sess), true, pass);
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}
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for pass in late_lint_passes {
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ls.register_late_pass(Some(sess), true, pass);
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}
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for (name, to) in lint_groups {
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ls.register_group(Some(sess), true, name, to);
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}
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sess.plugin_llvm_passes.borrow_mut().extend(llvm_passes);
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sess.mir_passes.borrow_mut().extend(mir_passes);
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sess.plugin_attributes.borrow_mut().extend(attributes);
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}
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old(state);
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});
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control
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}
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}
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use std::path::Path;
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pub fn main() {
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use std::env;
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if env::var("CLIPPY_DOGFOOD").map(|_| true).unwrap_or(false) {
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return;
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}
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let dep_path = env::current_dir().expect("current dir is not readable").join("target").join("debug").join("deps");
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let sys_root = match (option_env!("MULTIRUST_HOME"), option_env!("MULTIRUST_TOOLCHAIN")) {
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(Some(home), Some(toolchain)) => format!("{}/toolchains/{}", home, toolchain),
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_ => option_env!("SYSROOT").expect("need to specify SYSROOT env var during clippy compilation or use multirust").to_owned(),
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};
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if let Some("clippy") = std::env::args().nth(1).as_ref().map(AsRef::as_ref) {
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let args = wrap_args(std::env::args().skip(2), dep_path, sys_root);
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let path = std::env::current_exe().expect("current executable path invalid");
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let run = std::process::Command::new("cargo")
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.args(&args)
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.env("RUSTC", path)
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.spawn().expect("could not run cargo")
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.wait().expect("failed to wait for cargo?")
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.success();
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assert!(run, "cargo rustc failed");
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} else {
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let args: Vec<String> = if env::args().any(|s| s == "--sysroot") {
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env::args().collect()
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} else {
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env::args().chain(Some("--sysroot".to_owned())).chain(Some(sys_root)).collect()
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};
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rustc_driver::run_compiler(&args, &mut ClippyCompilerCalls::new());
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}
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}
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fn wrap_args<P, I>(old_args: I, dep_path: P, sysroot: String) -> Vec<String>
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where P: AsRef<Path>, I: Iterator<Item=String> {
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let mut args = vec!["rustc".to_owned()];
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let mut found_dashes = false;
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for arg in old_args {
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found_dashes |= arg == "--";
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args.push(arg);
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}
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if !found_dashes {
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args.push("--".to_owned());
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}
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args.push("-L".to_owned());
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args.push(dep_path.as_ref().to_string_lossy().into_owned());
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args.push(String::from("--sysroot"));
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args.push(sysroot);
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args.push("-Zno-trans".to_owned());
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args
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}
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#[macro_use]
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extern crate syntax;
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#[macro_use]
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extern crate rustc;
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extern crate toml;
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// Only for the compile time checking of paths
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extern crate core;
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extern crate collections;
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// for unicode nfc normalization
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extern crate unicode_normalization;
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// for semver check in attrs.rs
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extern crate semver;
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// for regex checking
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extern crate regex_syntax;
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// for finding minimal boolean expressions
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extern crate quine_mc_cluskey;
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extern crate rustc_plugin;
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extern crate rustc_const_eval;
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extern crate rustc_const_math;
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use rustc_plugin::Registry;
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macro_rules! declare_restriction_lint {
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{ pub $name:tt, $description:tt } => {
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declare_lint! { pub $name, Allow, $description }
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};
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}
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pub mod consts;
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#[macro_use]
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pub mod utils;
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// begin lints modules, do not remove this comment, it’s used in `update_lints`
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pub mod approx_const;
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pub mod arithmetic;
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pub mod array_indexing;
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pub mod assign_ops;
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pub mod attrs;
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pub mod bit_mask;
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pub mod blacklisted_name;
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pub mod block_in_if_condition;
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pub mod booleans;
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pub mod collapsible_if;
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pub mod copies;
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pub mod cyclomatic_complexity;
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pub mod derive;
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pub mod doc;
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pub mod drop_ref;
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pub mod entry;
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pub mod enum_clike;
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pub mod enum_glob_use;
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pub mod enum_variants;
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pub mod eq_op;
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pub mod escape;
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pub mod eta_reduction;
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pub mod format;
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pub mod formatting;
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pub mod functions;
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pub mod identity_op;
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pub mod if_not_else;
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pub mod items_after_statements;
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pub mod len_zero;
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pub mod lifetimes;
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pub mod loops;
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pub mod map_clone;
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pub mod matches;
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pub mod mem_forget;
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pub mod methods;
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pub mod minmax;
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pub mod misc;
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pub mod misc_early;
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pub mod mut_mut;
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pub mod mut_reference;
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pub mod mutex_atomic;
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pub mod needless_bool;
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pub mod needless_borrow;
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pub mod needless_update;
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pub mod neg_multiply;
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pub mod new_without_default;
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pub mod no_effect;
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pub mod non_expressive_names;
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pub mod open_options;
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pub mod overflow_check_conditional;
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pub mod panic;
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pub mod precedence;
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pub mod print;
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pub mod ptr_arg;
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pub mod ranges;
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pub mod regex;
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pub mod returns;
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pub mod shadow;
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pub mod strings;
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pub mod swap;
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pub mod temporary_assignment;
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pub mod transmute;
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pub mod types;
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pub mod unicode;
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pub mod unsafe_removed_from_name;
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pub mod unused_label;
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pub mod vec;
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pub mod zero_div_zero;
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// end lints modules, do not remove this comment, it’s used in `update_lints`
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mod reexport {
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pub use syntax::ast::{Name, NodeId};
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}
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#[plugin_registrar]
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#[cfg_attr(rustfmt, rustfmt_skip)]
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pub fn plugin_registrar(reg: &mut Registry) {
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let conf = match utils::conf::conf_file(reg.args()) {
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Ok(file_name) => {
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// if the user specified a file, it must exist, otherwise default to `clippy.toml` but
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// do not require the file to exist
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let (ref file_name, must_exist) = if let Some(ref file_name) = file_name {
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(&**file_name, true)
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} else {
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("clippy.toml", false)
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};
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let (conf, errors) = utils::conf::read_conf(file_name, must_exist);
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// all conf errors are non-fatal, we just use the default conf in case of error
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for error in errors {
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reg.sess.struct_err(&format!("error reading Clippy's configuration file: {}", error)).emit();
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}
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conf
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}
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Err((err, span)) => {
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reg.sess.struct_span_err(span, err)
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.span_note(span, "Clippy will use default configuration")
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.emit();
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utils::conf::Conf::default()
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}
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};
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let mut store = reg.sess.lint_store.borrow_mut();
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store.register_removed("unstable_as_slice", "`Vec::as_slice` has been stabilized in 1.7");
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store.register_removed("unstable_as_mut_slice", "`Vec::as_mut_slice` has been stabilized in 1.7");
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store.register_removed("str_to_string", "using `str::to_string` is common even today and specialization will likely happen soon");
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store.register_removed("string_to_string", "using `string::to_string` is common even today and specialization will likely happen soon");
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// end deprecated lints, do not remove this comment, it’s used in `update_lints`
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reg.register_late_lint_pass(box types::TypePass);
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reg.register_late_lint_pass(box booleans::NonminimalBool);
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reg.register_late_lint_pass(box misc::TopLevelRefPass);
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reg.register_late_lint_pass(box misc::CmpNan);
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reg.register_late_lint_pass(box eq_op::EqOp);
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reg.register_early_lint_pass(box enum_variants::EnumVariantNames);
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reg.register_late_lint_pass(box enum_glob_use::EnumGlobUse);
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reg.register_late_lint_pass(box enum_clike::EnumClikeUnportableVariant);
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reg.register_late_lint_pass(box bit_mask::BitMask);
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reg.register_late_lint_pass(box ptr_arg::PtrArg);
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reg.register_late_lint_pass(box needless_bool::NeedlessBool);
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reg.register_late_lint_pass(box needless_bool::BoolComparison);
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reg.register_late_lint_pass(box approx_const::ApproxConstant);
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reg.register_late_lint_pass(box misc::FloatCmp);
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reg.register_early_lint_pass(box precedence::Precedence);
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reg.register_late_lint_pass(box eta_reduction::EtaPass);
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reg.register_late_lint_pass(box identity_op::IdentityOp);
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reg.register_early_lint_pass(box items_after_statements::ItemsAfterStatements);
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reg.register_late_lint_pass(box mut_mut::MutMut);
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reg.register_late_lint_pass(box mut_reference::UnnecessaryMutPassed);
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reg.register_late_lint_pass(box len_zero::LenZero);
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reg.register_late_lint_pass(box misc::CmpOwned);
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reg.register_late_lint_pass(box attrs::AttrPass);
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reg.register_late_lint_pass(box collapsible_if::CollapsibleIf);
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reg.register_late_lint_pass(box block_in_if_condition::BlockInIfCondition);
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reg.register_late_lint_pass(box misc::ModuloOne);
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reg.register_late_lint_pass(box unicode::Unicode);
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reg.register_late_lint_pass(box strings::StringAdd);
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reg.register_early_lint_pass(box returns::ReturnPass);
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reg.register_late_lint_pass(box methods::MethodsPass);
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reg.register_late_lint_pass(box shadow::ShadowPass);
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reg.register_late_lint_pass(box types::LetPass);
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reg.register_late_lint_pass(box types::UnitCmp);
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reg.register_late_lint_pass(box loops::LoopsPass);
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reg.register_late_lint_pass(box lifetimes::LifetimePass);
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reg.register_late_lint_pass(box entry::HashMapLint);
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reg.register_late_lint_pass(box ranges::StepByZero);
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reg.register_late_lint_pass(box types::CastPass);
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reg.register_late_lint_pass(box types::TypeComplexityPass::new(conf.type_complexity_threshold));
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reg.register_late_lint_pass(box matches::MatchPass);
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reg.register_late_lint_pass(box misc::PatternPass);
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reg.register_late_lint_pass(box minmax::MinMaxPass);
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reg.register_late_lint_pass(box open_options::NonSensicalOpenOptions);
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reg.register_late_lint_pass(box zero_div_zero::ZeroDivZeroPass);
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reg.register_late_lint_pass(box mutex_atomic::MutexAtomic);
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reg.register_late_lint_pass(box needless_update::NeedlessUpdatePass);
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reg.register_late_lint_pass(box needless_borrow::NeedlessBorrow);
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reg.register_late_lint_pass(box no_effect::NoEffectPass);
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reg.register_late_lint_pass(box map_clone::MapClonePass);
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reg.register_late_lint_pass(box temporary_assignment::TemporaryAssignmentPass);
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reg.register_late_lint_pass(box transmute::Transmute);
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reg.register_late_lint_pass(box cyclomatic_complexity::CyclomaticComplexity::new(conf.cyclomatic_complexity_threshold));
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reg.register_late_lint_pass(box escape::EscapePass);
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reg.register_early_lint_pass(box misc_early::MiscEarly);
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reg.register_late_lint_pass(box misc::UsedUnderscoreBinding);
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reg.register_late_lint_pass(box array_indexing::ArrayIndexing);
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reg.register_late_lint_pass(box panic::PanicPass);
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reg.register_late_lint_pass(box strings::StringLitAsBytes);
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reg.register_late_lint_pass(box derive::Derive);
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reg.register_late_lint_pass(box types::CharLitAsU8);
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reg.register_late_lint_pass(box print::PrintLint);
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reg.register_late_lint_pass(box vec::UselessVec);
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reg.register_early_lint_pass(box non_expressive_names::NonExpressiveNames {
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max_single_char_names: conf.max_single_char_names,
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});
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reg.register_late_lint_pass(box drop_ref::DropRefPass);
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reg.register_late_lint_pass(box types::AbsurdExtremeComparisons);
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reg.register_late_lint_pass(box types::InvalidUpcastComparisons);
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reg.register_late_lint_pass(box regex::RegexPass::default());
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reg.register_late_lint_pass(box copies::CopyAndPaste);
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reg.register_late_lint_pass(box format::FormatMacLint);
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reg.register_early_lint_pass(box formatting::Formatting);
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reg.register_late_lint_pass(box swap::Swap);
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reg.register_early_lint_pass(box if_not_else::IfNotElse);
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reg.register_late_lint_pass(box overflow_check_conditional::OverflowCheckConditional);
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reg.register_late_lint_pass(box unused_label::UnusedLabel);
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reg.register_late_lint_pass(box new_without_default::NewWithoutDefault);
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reg.register_late_lint_pass(box blacklisted_name::BlackListedName::new(conf.blacklisted_names));
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reg.register_late_lint_pass(box functions::Functions::new(conf.too_many_arguments_threshold));
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reg.register_early_lint_pass(box doc::Doc::new(conf.doc_valid_idents));
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reg.register_late_lint_pass(box neg_multiply::NegMultiply);
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reg.register_late_lint_pass(box unsafe_removed_from_name::UnsafeNameRemoval);
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reg.register_late_lint_pass(box mem_forget::MemForget);
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reg.register_late_lint_pass(box arithmetic::Arithmetic::default());
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reg.register_late_lint_pass(box assign_ops::AssignOps);
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reg.register_lint_group("clippy_restrictions", vec![
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arithmetic::FLOAT_ARITHMETIC,
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arithmetic::INTEGER_ARITHMETIC,
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assign_ops::ASSIGN_OPS,
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]);
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reg.register_lint_group("clippy_pedantic", vec![
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array_indexing::INDEXING_SLICING,
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booleans::NONMINIMAL_BOOL,
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enum_glob_use::ENUM_GLOB_USE,
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if_not_else::IF_NOT_ELSE,
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items_after_statements::ITEMS_AFTER_STATEMENTS,
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matches::SINGLE_MATCH_ELSE,
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mem_forget::MEM_FORGET,
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methods::OPTION_UNWRAP_USED,
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methods::RESULT_UNWRAP_USED,
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methods::WRONG_PUB_SELF_CONVENTION,
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mut_mut::MUT_MUT,
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mutex_atomic::MUTEX_INTEGER,
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non_expressive_names::SIMILAR_NAMES,
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print::PRINT_STDOUT,
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print::USE_DEBUG,
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shadow::SHADOW_REUSE,
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shadow::SHADOW_SAME,
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shadow::SHADOW_UNRELATED,
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strings::STRING_ADD,
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strings::STRING_ADD_ASSIGN,
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types::CAST_POSSIBLE_TRUNCATION,
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types::CAST_POSSIBLE_WRAP,
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types::CAST_PRECISION_LOSS,
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types::CAST_SIGN_LOSS,
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unicode::NON_ASCII_LITERAL,
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unicode::UNICODE_NOT_NFC,
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]);
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reg.register_lint_group("clippy", vec![
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approx_const::APPROX_CONSTANT,
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array_indexing::OUT_OF_BOUNDS_INDEXING,
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assign_ops::ASSIGN_OP_PATTERN,
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attrs::DEPRECATED_SEMVER,
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attrs::INLINE_ALWAYS,
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bit_mask::BAD_BIT_MASK,
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bit_mask::INEFFECTIVE_BIT_MASK,
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blacklisted_name::BLACKLISTED_NAME,
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block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
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block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
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booleans::LOGIC_BUG,
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collapsible_if::COLLAPSIBLE_IF,
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copies::IF_SAME_THEN_ELSE,
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copies::IFS_SAME_COND,
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copies::MATCH_SAME_ARMS,
|
||
cyclomatic_complexity::CYCLOMATIC_COMPLEXITY,
|
||
derive::DERIVE_HASH_XOR_EQ,
|
||
derive::EXPL_IMPL_CLONE_ON_COPY,
|
||
doc::DOC_MARKDOWN,
|
||
drop_ref::DROP_REF,
|
||
entry::MAP_ENTRY,
|
||
enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
|
||
enum_variants::ENUM_VARIANT_NAMES,
|
||
eq_op::EQ_OP,
|
||
escape::BOXED_LOCAL,
|
||
eta_reduction::REDUNDANT_CLOSURE,
|
||
format::USELESS_FORMAT,
|
||
formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
|
||
formatting::SUSPICIOUS_ELSE_FORMATTING,
|
||
functions::TOO_MANY_ARGUMENTS,
|
||
identity_op::IDENTITY_OP,
|
||
len_zero::LEN_WITHOUT_IS_EMPTY,
|
||
len_zero::LEN_ZERO,
|
||
lifetimes::NEEDLESS_LIFETIMES,
|
||
lifetimes::UNUSED_LIFETIMES,
|
||
loops::EMPTY_LOOP,
|
||
loops::EXPLICIT_COUNTER_LOOP,
|
||
loops::EXPLICIT_ITER_LOOP,
|
||
loops::FOR_KV_MAP,
|
||
loops::FOR_LOOP_OVER_OPTION,
|
||
loops::FOR_LOOP_OVER_RESULT,
|
||
loops::ITER_NEXT_LOOP,
|
||
loops::NEEDLESS_RANGE_LOOP,
|
||
loops::REVERSE_RANGE_LOOP,
|
||
loops::UNUSED_COLLECT,
|
||
loops::WHILE_LET_LOOP,
|
||
loops::WHILE_LET_ON_ITERATOR,
|
||
map_clone::MAP_CLONE,
|
||
matches::MATCH_BOOL,
|
||
matches::MATCH_OVERLAPPING_ARM,
|
||
matches::MATCH_REF_PATS,
|
||
matches::SINGLE_MATCH,
|
||
methods::CHARS_NEXT_CMP,
|
||
methods::CLONE_DOUBLE_REF,
|
||
methods::CLONE_ON_COPY,
|
||
methods::EXTEND_FROM_SLICE,
|
||
methods::FILTER_NEXT,
|
||
methods::NEW_RET_NO_SELF,
|
||
methods::OK_EXPECT,
|
||
methods::OPTION_MAP_UNWRAP_OR,
|
||
methods::OPTION_MAP_UNWRAP_OR_ELSE,
|
||
methods::OR_FUN_CALL,
|
||
methods::SEARCH_IS_SOME,
|
||
methods::SHOULD_IMPLEMENT_TRAIT,
|
||
methods::SINGLE_CHAR_PATTERN,
|
||
methods::TEMPORARY_CSTRING_AS_PTR,
|
||
methods::WRONG_SELF_CONVENTION,
|
||
minmax::MIN_MAX,
|
||
misc::CMP_NAN,
|
||
misc::CMP_OWNED,
|
||
misc::FLOAT_CMP,
|
||
misc::MODULO_ONE,
|
||
misc::REDUNDANT_PATTERN,
|
||
misc::TOPLEVEL_REF_ARG,
|
||
misc::USED_UNDERSCORE_BINDING,
|
||
misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
|
||
misc_early::REDUNDANT_CLOSURE_CALL,
|
||
misc_early::UNNEEDED_FIELD_PATTERN,
|
||
mut_reference::UNNECESSARY_MUT_PASSED,
|
||
mutex_atomic::MUTEX_ATOMIC,
|
||
needless_bool::BOOL_COMPARISON,
|
||
needless_bool::NEEDLESS_BOOL,
|
||
needless_borrow::NEEDLESS_BORROW,
|
||
needless_update::NEEDLESS_UPDATE,
|
||
neg_multiply::NEG_MULTIPLY,
|
||
new_without_default::NEW_WITHOUT_DEFAULT,
|
||
no_effect::NO_EFFECT,
|
||
non_expressive_names::MANY_SINGLE_CHAR_NAMES,
|
||
open_options::NONSENSICAL_OPEN_OPTIONS,
|
||
overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
|
||
panic::PANIC_PARAMS,
|
||
precedence::PRECEDENCE,
|
||
ptr_arg::PTR_ARG,
|
||
ranges::RANGE_STEP_BY_ZERO,
|
||
ranges::RANGE_ZIP_WITH_LEN,
|
||
regex::INVALID_REGEX,
|
||
regex::REGEX_MACRO,
|
||
regex::TRIVIAL_REGEX,
|
||
returns::LET_AND_RETURN,
|
||
returns::NEEDLESS_RETURN,
|
||
strings::STRING_LIT_AS_BYTES,
|
||
swap::ALMOST_SWAPPED,
|
||
swap::MANUAL_SWAP,
|
||
temporary_assignment::TEMPORARY_ASSIGNMENT,
|
||
transmute::CROSSPOINTER_TRANSMUTE,
|
||
transmute::TRANSMUTE_PTR_TO_REF,
|
||
transmute::USELESS_TRANSMUTE,
|
||
types::ABSURD_EXTREME_COMPARISONS,
|
||
types::BOX_VEC,
|
||
types::CHAR_LIT_AS_U8,
|
||
types::INVALID_UPCAST_COMPARISONS,
|
||
types::LET_UNIT_VALUE,
|
||
types::LINKEDLIST,
|
||
types::TYPE_COMPLEXITY,
|
||
types::UNIT_CMP,
|
||
unicode::ZERO_WIDTH_SPACE,
|
||
unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
|
||
unused_label::UNUSED_LABEL,
|
||
vec::USELESS_VEC,
|
||
zero_div_zero::ZERO_DIVIDED_BY_ZERO,
|
||
]);
|
||
}
|