Report incorrect case for inner items within all bodies

crates/hir-ty/src/diagnostics/decl_check.rs

@@ -18,8 +18,8 @@ use hir_def::{
     data::adt::VariantData,
     hir::{Pat, PatId},
     src::HasSource,
-    AdtId, AttrDefId, ConstId, DefWithBodyId, EnumId, FunctionId, ItemContainerId, Lookup,
-    ModuleDefId, StaticId, StructId,
+    AdtId, AttrDefId, ConstId, DefWithBodyId, EnumId, EnumVariantId, FunctionId, ItemContainerId,
+    Lookup, ModuleDefId, StaticId, StructId,
 };
 use hir_expand::{
     name::{AsName, Name},
@@ -189,8 +189,7 @@ impl<'a> DeclValidator<'a> {
                 AttrDefId::TypeAliasId(_) => None,
                 AttrDefId::GenericParamId(_) => None,
             }
-            .map(|mid| self.allowed(mid, allow_name, true))
-            .unwrap_or(false)
+            .is_some_and(|mid| self.allowed(mid, allow_name, true))
     }
 
     fn validate_func(&mut self, func: FunctionId) {
@@ -482,6 +481,11 @@ impl<'a> DeclValidator<'a> {
     fn validate_enum(&mut self, enum_id: EnumId) {
         let data = self.db.enum_data(enum_id);
 
+        for (local_id, _) in data.variants.iter() {
+            let variant_id = EnumVariantId { parent: enum_id, local_id };
+            self.validate_body_inner_items(variant_id.into());
+        }
+
         // Check whether non-camel case names are allowed for this enum.
         if self.allowed(enum_id.into(), allow::NON_CAMEL_CASE_TYPES, false) {
             return;
@@ -498,13 +502,11 @@ impl<'a> DeclValidator<'a> {
         // Check the field names.
         let enum_fields_replacements = data
             .variants
-            .iter()
-            .filter_map(|(_, variant)| {
+            .values()
+            .filter_map(|variant| {
                 Some(Replacement {
                     current_name: variant.name.clone(),
-                    suggested_text: to_camel_case(
-                        &variant.name.display(self.db.upcast()).to_string(),
-                    )?,
+                    suggested_text: to_camel_case(&variant.name.to_smol_str())?,
                     expected_case: CaseType::UpperCamelCase,
                 })
             })
@@ -608,6 +610,8 @@ impl<'a> DeclValidator<'a> {
     fn validate_const(&mut self, const_id: ConstId) {
         let data = self.db.const_data(const_id);
 
+        self.validate_body_inner_items(const_id.into());
+
         if self.allowed(const_id.into(), allow::NON_UPPER_CASE_GLOBAL, false) {
             return;
         }
@@ -617,7 +621,7 @@ impl<'a> DeclValidator<'a> {
             None => return,
         };
 
-        let const_name = name.display(self.db.upcast()).to_string();
+        let const_name = name.to_smol_str();
         let replacement = if let Some(new_name) = to_upper_snake_case(&const_name) {
             Replacement {
                 current_name: name.clone(),
@@ -656,13 +660,15 @@ impl<'a> DeclValidator<'a> {
             return;
         }
 
+        self.validate_body_inner_items(static_id.into());
+
         if self.allowed(static_id.into(), allow::NON_UPPER_CASE_GLOBAL, false) {
             return;
         }
 
         let name = &data.name;
 
-        let static_name = name.display(self.db.upcast()).to_string();
+        let static_name = name.to_smol_str();
         let replacement = if let Some(new_name) = to_upper_snake_case(&static_name) {
             Replacement {
                 current_name: name.clone(),
@@ -694,6 +700,7 @@ impl<'a> DeclValidator<'a> {
         self.sink.push(diagnostic);
     }
 
+    // FIXME: We don't currently validate names within `DefWithBodyId::InTypeConstId`.
     /// Recursively validates inner scope items, such as static variables and constants.
     fn validate_body_inner_items(&mut self, body_id: DefWithBodyId) {
         let body = self.db.body(body_id);

crates/ide-diagnostics/src/handlers/incorrect_case.rs

@@ -571,6 +571,73 @@ fn main() {
           //^^^^^^^^^^^ 💡 warn: Variable `INNER_LOCAL` should have snake_case name, e.g. `inner_local`
     }
 }
+"#,
+        );
+    }
+
+    #[test]
+    fn const_body_inner_items() {
+        check_diagnostics(
+            r#"
+const _: () = {
+    static bar: bool = true;
+         //^^^ 💡 warn: Static variable `bar` should have UPPER_SNAKE_CASE name, e.g. `BAR`
+    fn BAZ() {}
+     //^^^ 💡 warn: Function `BAZ` should have snake_case name, e.g. `baz`
+
+    const foo: () = {
+        //^^^ 💡 warn: Constant `foo` should have UPPER_SNAKE_CASE name, e.g. `FOO`
+        const foo: bool = true;
+            //^^^ 💡 warn: Constant `foo` should have UPPER_SNAKE_CASE name, e.g. `FOO`
+        static bar: bool = true;
+             //^^^ 💡 warn: Static variable `bar` should have UPPER_SNAKE_CASE name, e.g. `BAR`
+        fn BAZ() {}
+         //^^^ 💡 warn: Function `BAZ` should have snake_case name, e.g. `baz`
+    };
+};
+"#,
+        );
+    }
+
+    #[test]
+    fn static_body_inner_items() {
+        check_diagnostics(
+            r#"
+static FOO: () = {
+    const foo: bool = true;
+        //^^^ 💡 warn: Constant `foo` should have UPPER_SNAKE_CASE name, e.g. `FOO`
+    fn BAZ() {}
+     //^^^ 💡 warn: Function `BAZ` should have snake_case name, e.g. `baz`
+
+    static bar: () = {
+         //^^^ 💡 warn: Static variable `bar` should have UPPER_SNAKE_CASE name, e.g. `BAR`
+        const foo: bool = true;
+            //^^^ 💡 warn: Constant `foo` should have UPPER_SNAKE_CASE name, e.g. `FOO`
+        static bar: bool = true;
+             //^^^ 💡 warn: Static variable `bar` should have UPPER_SNAKE_CASE name, e.g. `BAR`
+        fn BAZ() {}
+         //^^^ 💡 warn: Function `BAZ` should have snake_case name, e.g. `baz`
+    };
+};
+"#,
+        );
+    }
+
+    #[test]
+    fn enum_variant_body_inner_item() {
+        check_diagnostics(
+            r#"
+enum E {
+    A = {
+        const foo: bool = true;
+            //^^^ 💡 warn: Constant `foo` should have UPPER_SNAKE_CASE name, e.g. `FOO`
+        static bar: bool = true;
+             //^^^ 💡 warn: Static variable `bar` should have UPPER_SNAKE_CASE name, e.g. `BAR`
+        fn BAZ() {}
+         //^^^ 💡 warn: Function `BAZ` should have snake_case name, e.g. `baz`
+        42
+    },
+}
 "#,
         );
     }