[WIP] Register redundant_field_names and non_expressive_names as early passes

clippy_lints/src/lib.rs

@@ -346,13 +346,8 @@ mod reexport {
 /// level (i.e `#![cfg_attr(...)]`) will still be expanded even when using a pre-expansion pass.
 ///
 /// Used in `./src/driver.rs`.
-pub fn register_pre_expansion_lints(store: &mut rustc_lint::LintStore, conf: &Conf) {
+pub fn register_pre_expansion_lints(store: &mut rustc_lint::LintStore) {
     store.register_pre_expansion_pass(|| box write::Write::default());
-    store.register_pre_expansion_pass(|| box redundant_field_names::RedundantFieldNames);
-    let single_char_binding_names_threshold = conf.single_char_binding_names_threshold;
-    store.register_pre_expansion_pass(move || box non_expressive_names::NonExpressiveNames {
-        single_char_binding_names_threshold,
-    });
     store.register_pre_expansion_pass(|| box attrs::EarlyAttributes);
     store.register_pre_expansion_pass(|| box dbg_macro::DbgMacro);
 }
@@ -1071,6 +1066,11 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
     store.register_late_pass(|| box match_on_vec_items::MatchOnVecItems);
     store.register_early_pass(|| box manual_non_exhaustive::ManualNonExhaustive);
     store.register_late_pass(|| box manual_async_fn::ManualAsyncFn);
+    store.register_early_pass(|| box redundant_field_names::RedundantFieldNames);
+    let single_char_binding_names_threshold = conf.single_char_binding_names_threshold;
+    store.register_early_pass(move || box non_expressive_names::NonExpressiveNames {
+        single_char_binding_names_threshold,
+    });
 
     store.register_group(true, "clippy::restriction", Some("clippy_restriction"), vec![
         LintId::of(&arithmetic::FLOAT_ARITHMETIC),

clippy_lints/src/non_expressive_names.rs

@@ -5,6 +5,7 @@ use rustc_ast::ast::{
 use rustc_ast::attr;
 use rustc_ast::visit::{walk_block, walk_expr, walk_pat, Visitor};
 use rustc_lint::{EarlyContext, EarlyLintPass};
+use rustc_middle::lint::in_external_macro;
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::source_map::Span;
 use rustc_span::symbol::{Ident, SymbolStr};
@@ -354,12 +355,20 @@ impl<'a, 'tcx> Visitor<'tcx> for SimilarNamesLocalVisitor<'a, 'tcx> {
 
 impl EarlyLintPass for NonExpressiveNames {
     fn check_item(&mut self, cx: &EarlyContext<'_>, item: &Item) {
+        if in_external_macro(cx.sess, item.span) {
+            return;
+        }
+
         if let ItemKind::Fn(_, ref sig, _, Some(ref blk)) = item.kind {
             do_check(self, cx, &item.attrs, &sig.decl, blk);
         }
     }
 
     fn check_impl_item(&mut self, cx: &EarlyContext<'_>, item: &AssocItem) {
+        if in_external_macro(cx.sess, item.span) {
+            return;
+        }
+
         if let AssocItemKind::Fn(_, ref sig, _, Some(ref blk)) = item.kind {
             do_check(self, cx, &item.attrs, &sig.decl, blk);
         }

clippy_lints/src/redundant_field_names.rs

@@ -2,6 +2,7 @@ use crate::utils::span_lint_and_sugg;
 use rustc_ast::ast::{Expr, ExprKind};
 use rustc_errors::Applicability;
 use rustc_lint::{EarlyContext, EarlyLintPass};
+use rustc_middle::lint::in_external_macro;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 
 declare_clippy_lint! {
@@ -36,6 +37,9 @@ declare_lint_pass!(RedundantFieldNames => [REDUNDANT_FIELD_NAMES]);
 
 impl EarlyLintPass for RedundantFieldNames {
     fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) {
+        if in_external_macro(cx.sess, expr.span) {
+            return;
+        }
         if let ExprKind::Struct(_, ref fields, _) = expr.kind {
             for field in fields {
                 if field.is_shorthand {

src/driver.rs

@@ -79,7 +79,7 @@ impl rustc_driver::Callbacks for ClippyCallbacks {
 
             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);
         }));