Fix path_qualified

As suggested by eddyb

Author: mati865

clippy_lints/src/utils/mod.rs

@@ -141,6 +141,12 @@ impl<'tcx> Printer<'tcx, 'tcx> for AbsolutePathPrinter<'_, 'tcx> {
         self_ty: Ty<'tcx>,
         trait_ref: Option<ty::TraitRef<'tcx>>,
     ) -> Result<Self::Path, Self::Error> {
+        if trait_ref.is_none() {
+            if let ty::Adt(def, substs) = self_ty.sty {
+                return self.print_def_path(def.did, substs);
+            }
+        }
+        
         // This shouldn't ever be needed, but just in case:
         Ok(vec![match trait_ref {
             Some(trait_ref) => Symbol::intern(&format!("{:?}", trait_ref)).as_str(),

clippy_lints/src/utils/paths.rs

@@ -17,7 +17,7 @@ pub const CLONE_TRAIT_METHOD: [&str; 4] = ["core", "clone", "Clone", "clone"];
 pub const CMP_MAX: [&str; 3] = ["core", "cmp", "max"];
 pub const CMP_MIN: [&str; 3] = ["core", "cmp", "min"];
 pub const COW: [&str; 3] = ["alloc", "borrow", "Cow"];
-pub const CSTRING_NEW: [&str; 2] = ["<std::ffi::CString>", "new"];
+pub const CSTRING_NEW: [&str; 5] = ["std", "ffi", "c_str", "CString", "new"];
 pub const DEFAULT_TRAIT: [&str; 3] = ["core", "default", "Default"];
 pub const DEFAULT_TRAIT_METHOD: [&str; 4] = ["core", "default", "Default", "default"];
 pub const DEREF_TRAIT_METHOD: [&str; 5] = ["core", "ops", "deref", "Deref", "deref"];
@@ -27,8 +27,8 @@ pub const DROP: [&str; 3] = ["core", "mem", "drop"];
 pub const DROP_TRAIT: [&str; 4] = ["core", "ops", "drop", "Drop"];
 pub const DURATION: [&str; 3] = ["core", "time", "Duration"];
 pub const EARLY_CONTEXT: [&str; 4] = ["rustc", "lint", "context", "EarlyContext"];
-pub const FMT_ARGUMENTS_NEWV1: [&str; 2] = ["<std::fmt::Arguments<'a>>", "new_v1"];
-pub const FMT_ARGUMENTS_NEWV1FORMATTED: [&str; 2] = ["<std::fmt::Arguments<'a>>", "new_v1_formatted"];
+pub const FMT_ARGUMENTS_NEWV1: [&str; 4] = ["core", "fmt", "Arguments", "new_v1"];
+pub const FMT_ARGUMENTS_NEWV1FORMATTED: [&str; 4] = ["core", "fmt", "Arguments", "new_v1_formatted"];
 pub const FROM_FROM: [&str; 4] = ["core", "convert", "From", "from"];
 pub const FROM_TRAIT: [&str; 3] = ["core", "convert", "From"];
 pub const HASH: [&str; 2] = ["hash", "Hash"];
@@ -60,11 +60,11 @@ pub const OPTION_NONE: [&str; 4] = ["core", "option", "Option", "None"];
 pub const OPTION_SOME: [&str; 4] = ["core", "option", "Option", "Some"];
 pub const ORD: [&str; 3] = ["core", "cmp", "Ord"];
 pub const OS_STRING: [&str; 4] = ["std", "ffi", "os_str", "OsString"];
-pub const OS_STR_TO_OS_STRING: [&str; 2] = ["<std::ffi::OsStr>", "to_os_string"];
+pub const OS_STR_TO_OS_STRING: [&str; 5] = ["std", "ffi", "os_str", "OsStr", "to_os_string"];
 pub const PARTIAL_ORD: [&str; 3] = ["core", "cmp", "PartialOrd"];
 pub const PATH: [&str; 3] = ["std", "path", "Path"];
 pub const PATH_BUF: [&str; 3] = ["std", "path", "PathBuf"];
-pub const PATH_TO_PATH_BUF: [&str; 2] = ["<std::path::Path>", "to_path_buf"];
+pub const PATH_TO_PATH_BUF: [&str; 4] = ["std", "path", "Path", "to_path_buf"];
 pub const PTR_NULL: [&str; 2] = ["ptr", "null"];
 pub const PTR_NULL_MUT: [&str; 2] = ["ptr", "null_mut"];
 pub const RANGE: [&str; 3] = ["core", "ops", "Range"];
@@ -83,12 +83,12 @@ pub const RANGE_TO_STD: [&str; 3] = ["std", "ops", "RangeTo"];
 pub const RC: [&str; 3] = ["alloc", "rc", "Rc"];
 pub const RECEIVER: [&str; 4] = ["std", "sync", "mpsc", "Receiver"];
 pub const REGEX: [&str; 3] = ["regex", "re_unicode", "Regex"];
-pub const REGEX_BUILDER_NEW: [&str; 2] = ["<regex::RegexBuilder>", "new"];
-pub const REGEX_BYTES_BUILDER_NEW: [&str; 2] = ["<regex::bytes::RegexBuilder>", "new"];
-pub const REGEX_BYTES_NEW: [&str; 2] = ["<regex::bytes::Regex>", "new"];
-pub const REGEX_BYTES_SET_NEW: [&str; 2] = ["<regex::bytes::RegexSet>", "new"];
-pub const REGEX_NEW: [&str; 2] = ["<regex::Regex>", "new"];
-pub const REGEX_SET_NEW: [&str; 2] = ["<regex::RegexSet>", "new"];
+pub const REGEX_BUILDER_NEW: [&str; 5] = ["regex", "re_builder", "unicode", "RegexBuilder", "new"];
+pub const REGEX_BYTES_BUILDER_NEW: [&str; 5] = ["regex", "re_builder", "bytes", "RegexBuilder", "new"];
+pub const REGEX_BYTES_NEW: [&str; 4] = ["regex", "re_bytes", "Regex", "new"];
+pub const REGEX_BYTES_SET_NEW: [&str; 5] = ["regex", "re_set", "bytes", "RegexSet", "new"];
+pub const REGEX_NEW: [&str; 4] = ["regex", "re_unicode", "Regex", "new"];
+pub const REGEX_SET_NEW: [&str; 5] = ["regex", "re_set", "unicode", "RegexSet", "new"];
 pub const REPEAT: [&str; 3] = ["core", "iter", "repeat"];
 pub const RESULT: [&str; 3] = ["core", "result", "Result"];
 pub const RESULT_ERR: [&str; 4] = ["core", "result", "Result", "Err"];