add @compile-flags to test file;

turns out not linting in test mod is not a FN.
rust-lang · Mar 23, 2024 · e93658b · e93658b
1 parent 1c71163
commit e93658b
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Showing 4 changed files with 84 additions and 67 deletions.
diff --git a/clippy_lints/src/attrs/mixed_attributes_style.rs b/clippy_lints/src/attrs/mixed_attributes_style.rs
@@ -3,7 +3,8 @@ use clippy_utils::diagnostics::span_lint;
 use rustc_ast::{AttrKind, AttrStyle, Attribute};
 use rustc_data_structures::fx::FxHashSet;
 use rustc_lint::{LateContext, LintContext};
-use rustc_span::{Span, Symbol};
+use rustc_span::source_map::SourceMap;
+use rustc_span::{SourceFile, Span, Symbol};
 use std::sync::Arc;
 
 #[derive(Hash, PartialEq, Eq)]
@@ -35,8 +36,11 @@ pub(super) fn check(cx: &LateContext<'_>, item_span: Span, attrs: &[Attribute])
     let mut inner_attr_kind: FxHashSet<SimpleAttrKind> = FxHashSet::default();
     let mut outer_attr_kind: FxHashSet<SimpleAttrKind> = FxHashSet::default();
 
+    let source_map = cx.sess().source_map();
+    let item_src = source_map.lookup_source_file(item_span.lo());
+
     for attr in attrs {
-        if attr.span.from_expansion() || !attr_in_same_src_as_item(cx, attr.span, item_span) {
+        if attr.span.from_expansion() || !attr_in_same_src_as_item(source_map, &item_src, item_span) {
             continue;
         }
 
@@ -75,9 +79,7 @@ fn lint_mixed_attrs(cx: &LateContext<'_>, attrs: &[Attribute]) {
     );
 }
 
-fn attr_in_same_src_as_item(cx: &LateContext<'_>, attr_span: Span, item_span: Span) -> bool {
-    let source_map = cx.sess().source_map();
-    let item_src = source_map.lookup_source_file(item_span.lo());
+fn attr_in_same_src_as_item(source_map: &SourceMap, item_src: &Arc<SourceFile>, attr_span: Span) -> bool {
     let attr_src = source_map.lookup_source_file(attr_span.lo());
-    Arc::ptr_eq(&attr_src, &item_src)
+    Arc::ptr_eq(item_src, &attr_src)
 }
diff --git a/tests/ui/mixed_attributes_style.rs b/tests/ui/mixed_attributes_style.rs
@@ -1,9 +1,11 @@
 //@aux-build:proc_macro_attr.rs
+//@compile-flags: --test --cfg dummy_cfg
 #![feature(custom_inner_attributes)]
 #![warn(clippy::mixed_attributes_style)]
 #![allow(clippy::duplicated_attributes)]
 
-use proc_macro_attr::dummy;
+#[macro_use]
+extern crate proc_macro_attr;
 
 #[allow(unused)] //~ ERROR: item has both inner and outer attributes
 fn foo1() {
@@ -58,44 +60,41 @@ mod quz {
     #![allow(unused)]
 }
 
-// issue #12530, don't lint different attributes entirely
-#[cfg(test)]
-mod tests {
-    #![allow(clippy::unreadable_literal)]
-}
-#[cfg(unix)]
-mod another_mod {
-    #![allow(clippy::question_mark)]
-}
-/// Nested mod - Good
-mod nested_mod {
-    #[allow(dead_code)] //~ ERROR: item has both inner and outer attributes
-    mod inner_mod {
-        #![allow(dead_code)]
-    }
-}
-/// Nested mod - Good //~ ERROR: item has both inner and outer attributes
-#[allow(unused)]
-mod nest_mod_2 {
-    #![allow(unused)]
+mod issue_12530 {
+    // issue #12530, don't lint different attributes entirely
+    #[cfg(test)]
+    mod tests {
+        #![allow(clippy::unreadable_literal)]
 
-    #[allow(dead_code)] //~ ERROR: item has both inner and outer attributes
-    mod inner_mod {
-        #![allow(dead_code)]
+        #[allow(dead_code)] //~ ERROR: item has both inner and outer attributes
+        mod inner_mod {
+            #![allow(dead_code)]
+        }
     }
-}
-/// Nested mod - Possible FN
-#[cfg(test)]
-mod nested_mod_false_nagative {
-    #![allow(unused)]
+    #[cfg(dummy_cfg)]
+    mod another_mod {
+        #![allow(clippy::question_mark)]
+    }
+    /// Nested mod
+    mod nested_mod {
+        #[allow(dead_code)] //~ ERROR: item has both inner and outer attributes
+        mod inner_mod {
+            #![allow(dead_code)]
+        }
+    }
+    /// Nested mod //~ ERROR: item has both inner and outer attributes
+    #[allow(unused)]
+    mod nest_mod_2 {
+        #![allow(unused)]
 
-    #[allow(dead_code)] // This should lint but it does not, removing the `#[cfg(test)]` solves the problem.
-    mod inner_mod {
-        #![allow(dead_code)]
+        #[allow(dead_code)] //~ ERROR: item has both inner and outer attributes
+        mod inner_mod {
+            #![allow(dead_code)]
+        }
+    }
+    // Different path symbols - Known FN
+    #[dummy]
+    fn use_dummy() {
+        #![proc_macro_attr::dummy]
     }
-}
-// Different path symbols - Known FN
-#[dummy]
-fn use_dummy() {
-    #![proc_macro_attr::dummy]
 }
diff --git a/tests/ui/mixed_attributes_style.stderr b/tests/ui/mixed_attributes_style.stderr
@@ -1,5 +1,5 @@
 error: item has both inner and outer attributes
-  --> tests/ui/mixed_attributes_style.rs:8:1
+  --> tests/ui/mixed_attributes_style.rs:10:1
    |
 LL | / #[allow(unused)]
 LL | | fn foo1() {
@@ -10,7 +10,7 @@ LL | |     #![allow(unused)]
    = help: to override `-D warnings` add `#[allow(clippy::mixed_attributes_style)]`
 
 error: item has both inner and outer attributes
-  --> tests/ui/mixed_attributes_style.rs:22:1
+  --> tests/ui/mixed_attributes_style.rs:24:1
    |
 LL | / /// linux
 LL | |
@@ -19,37 +19,45 @@ LL | |     //! windows
    | |_______________^
 
 error: item has both inner and outer attributes
-  --> tests/ui/mixed_attributes_style.rs:37:1
+  --> tests/ui/mixed_attributes_style.rs:39:1
    |
 LL | / #[allow(unused)]
 LL | | mod bar {
 LL | |     #![allow(unused)]
    | |_____________________^
 
 error: item has both inner and outer attributes
-  --> tests/ui/mixed_attributes_style.rs:72:5
+  --> tests/ui/mixed_attributes_style.rs:69:9
    |
-LL | /     #[allow(dead_code)]
-LL | |     mod inner_mod {
-LL | |         #![allow(dead_code)]
-   | |____________________________^
+LL | /         #[allow(dead_code)]
+LL | |         mod inner_mod {
+LL | |             #![allow(dead_code)]
+   | |________________________________^
 
 error: item has both inner and outer attributes
-  --> tests/ui/mixed_attributes_style.rs:77:1
+  --> tests/ui/mixed_attributes_style.rs:80:9
    |
-LL | / /// Nested mod - Good
-LL | | #[allow(unused)]
-LL | | mod nest_mod_2 {
-LL | |     #![allow(unused)]
-   | |_____________________^
+LL | /         #[allow(dead_code)]
+LL | |         mod inner_mod {
+LL | |             #![allow(dead_code)]
+   | |________________________________^
+
+error: item has both inner and outer attributes
+  --> tests/ui/mixed_attributes_style.rs:85:5
+   |
+LL | /     /// Nested mod
+LL | |     #[allow(unused)]
+LL | |     mod nest_mod_2 {
+LL | |         #![allow(unused)]
+   | |_________________________^
 
 error: item has both inner and outer attributes
-  --> tests/ui/mixed_attributes_style.rs:82:5
+  --> tests/ui/mixed_attributes_style.rs:90:9
    |
-LL | /     #[allow(dead_code)]
-LL | |     mod inner_mod {
-LL | |         #![allow(dead_code)]
-   | |____________________________^
+LL | /         #[allow(dead_code)]
+LL | |         mod inner_mod {
+LL | |             #![allow(dead_code)]
+   | |________________________________^
 
-error: aborting due to 6 previous errors
+error: aborting due to 7 previous errors
 
diff --git a/tests/ui/mixed_attributes_style/mod_declaration.stderr b/tests/ui/mixed_attributes_style/mod_declaration.stderr
@@ -1,3 +1,14 @@
+error: item has both inner and outer attributes
+  --> tests/ui/mixed_attributes_style/mod_declaration.rs:1:1
+   |
+LL | / #[path = "auxiliary/submodule.rs"] // don't lint.
+LL | | /// This doc comment should not lint, it could be used to add context to the original module doc
+LL | | mod submodule;
+   | |____________________^
+   |
+   = note: `-D clippy::mixed-attributes-style` implied by `-D warnings`
+   = help: to override `-D warnings` add `#[allow(clippy::mixed_attributes_style)]`
+
 error: item has both inner and outer attributes
   --> tests/ui/mixed_attributes_style/auxiliary/submodule.rs:5:1
    |
@@ -6,9 +17,6 @@ LL | |
 LL | | mod foo {
 LL | |     #![allow(dead_code)]
    | |________________________^
-   |
-   = note: `-D clippy::mixed-attributes-style` implied by `-D warnings`
-   = help: to override `-D warnings` add `#[allow(clippy::mixed_attributes_style)]`
 
-error: aborting due to 1 previous error
+error: aborting due to 2 previous errors