fix: cli tool and some clippy warnings

Author: rich-ayr

bindgen/ir/dot.rs

@@ -41,7 +41,7 @@ where
             if is_allowlisted { "black" } else { "gray" }
         )?;
         item.dot_attributes(ctx, &mut dot_file)?;
-        writeln!(&mut dot_file, r#"</table> >];"#)?;
+        writeln!(&mut dot_file, r"</table> >];")?;
 
         item.trace(
             ctx,

bindgen/lib.rs

@@ -86,7 +86,7 @@ pub const DEFAULT_ANON_FIELDS_PREFIX: &str = "__bindgen_anon_";
 const DEFAULT_NON_EXTERN_FNS_SUFFIX: &str = "__extern";
 
 fn file_is_cpp(name_file: &str) -> bool {
-    Path::new(name_file).extension().map_or(false, |ext| {
+    Path::new(name_file).extension().is_some_and(|ext| {
         ext.eq_ignore_ascii_case("hpp") ||
             ext.eq_ignore_ascii_case("hxx") ||
             ext.eq_ignore_ascii_case("hh") ||

bindgen/options/cli.rs

@@ -7,6 +7,7 @@ use crate::{
         TypeKind,
     },
     features::{RustEdition, EARLIEST_STABLE_RUST},
+    ir::function::FunctionKind,
     regex_set::RegexSet,
     Abi, AliasVariation, Builder, CodegenConfig, EnumVariation,
     FieldVisibilityKind, Formatter, MacroTypeVariation, NonCopyUnionStyle,
@@ -767,7 +768,7 @@ where
                 Some(AttributeItemKind::Union) => {
                     "--with-attribute-custom-union"
                 }
-                Some(AttributeItemKind::Function) => {
+                Some(AttributeItemKind::Function(_)) => {
                     "--with-attribute-custom-function"
                 }
             };
@@ -1037,7 +1038,7 @@ where
         ),
         (
             with_attribute_custom_function,
-            Some(AttributeItemKind::Function),
+            Some(AttributeItemKind::Function(FunctionKind::Function)),
             "--with-attribute-custom-function",
         ),
     ] {