- // Setting RUSTC_WRAPPER causes Cargo to pass 'rustc' as the first argument.
- // We're invoking the compiler programmatically, so we ignore this/
- let mut orig_args: Vec<String> = env::args().collect();
- if orig_args.len() <= 1 {
- std::process::exit(1);
- }
- if orig_args[1] == "rustc" {
- // we still want to be able to invoke it normally though
- orig_args.remove(1);
- }
- // 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> = if orig_args.iter().any(|s| s == "--sysroot") {
- orig_args.clone()
- } else {
- orig_args
- .clone()
- .into_iter()
- .chain(Some("--sysroot".to_owned()))
- .chain(Some(sys_root))
- .collect()
- };
-
- // 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").ok().map_or(false, |val| val == "true")
- || orig_args.iter().any(|s| s == "--emit=dep-info,metadata");
-
- if clippy_enabled {
- args.extend_from_slice(&["--cfg".to_owned(), r#"feature="cargo-clippy""#.to_owned()]);
- if let Ok(extra_args) = env::var("CLIPPY_ARGS") {
- args.extend(
- extra_args
- .split("__CLIPPY_HACKERY__")
- .filter(|s| !s.is_empty())
- .map(str::to_owned),
- );
+ assert_eq!(arg_value(None, "--foobar", |_| true), None);
+ assert_eq!(arg_value(&args, "--bar", |_| false), None);
+ assert_eq!(arg_value(&args, "--bar", |_| true), Some("bar"));
+ assert_eq!(arg_value(&args, "--bar", |p| p == "bar"), Some("bar"));
+ assert_eq!(arg_value(&args, "--bar", |p| p == "foo"), None);
+ assert_eq!(arg_value(&args, "--foobar", |p| p == "foo"), None);
+ assert_eq!(arg_value(&args, "--foobar", |p| p == "123"), Some("123"));
+ assert_eq!(arg_value(&args, "--foo", |_| true), None);
+}
+
+#[allow(clippy::too_many_lines)]
+
+struct ClippyCallbacks;
+
+impl rustc_driver::Callbacks for ClippyCallbacks {
+ fn after_parsing(&mut self, compiler: &interface::Compiler) -> bool {
+ let sess = compiler.session();
+ let mut registry = rustc_plugin::registry::Registry::new(
+ sess,
+ compiler
+ .parse()
+ .expect(
+ "at this compilation stage \
+ the crate must be parsed",
+ )
+ .peek()
+ .span,
+ );
+ registry.args_hidden = Some(Vec::new());
+
+ let conf = clippy_lints::read_conf(®istry);
+ clippy_lints::register_plugins(&mut registry, &conf);
+
+ let rustc_plugin::registry::Registry {
+ early_lint_passes,
+ late_lint_passes,
+ lint_groups,
+ llvm_passes,
+ attributes,
+ ..
+ } = registry;
+ let mut ls = sess.lint_store.borrow_mut();
+ for pass in early_lint_passes {
+ ls.register_early_pass(Some(sess), true, false, pass);
+ }
+ for pass in late_lint_passes {
+ ls.register_late_pass(Some(sess), true, false, false, pass);