fixes for nightly clippy (#537)

Author: alex

asn1_derive/src/lib.rs

@@ -657,7 +657,7 @@ fn generate_read_element(
 ) -> syn::Result<proc_macro2::TokenStream> {
     let (read_type, default) = extract_field_properties(&f.attrs)?;
 
-    let error_location = format!("{}::{}", struct_name, f_name);
+    let error_location = format!("{struct_name}::{f_name}");
     let add_error_location = quote::quote! {
         .map_err(|e| e.add_location(asn1::ParseLocation::Field(#error_location)))
     };
@@ -767,7 +767,7 @@ fn generate_struct_read_block(
             let mut recurse = vec![];
 
             for (i, f) in fields.unnamed.iter().enumerate() {
-                let read_op = generate_read_element(struct_name, f, &format!("{}", i), false)?;
+                let read_op = generate_read_element(struct_name, f, &format!("{i}"), false)?;
 
                 recurse.push(quote::quote_spanned! {f.span() =>
                     #read_op,
@@ -820,7 +820,7 @@ fn generate_enum_read_block(
         let ty = &field.ty;
         let ident = &variant.ident;
 
-        let error_location = format!("{}::{}", name, ident);
+        let error_location = format!("{name}::{ident}");
         let add_error_location = quote::quote! {
             .map_err(|e| e.add_location(asn1::ParseLocation::Field(#error_location)))
         };
@@ -1107,7 +1107,7 @@ fn oid_expand(item: proc_macro::TokenStream) -> syn::Result<proc_macro2::TokenSt
         .map_err(|e| {
             syn::Error::new(
                 proc_macro2::Span::call_site(),
-                format!("Error parsing OID: {}", e),
+                format!("Error parsing OID: {e}"),
             )
         })?;
 
@@ -1145,7 +1145,7 @@ fn oid_expand(item: proc_macro::TokenStream) -> syn::Result<proc_macro2::TokenSt
     if der_len > 63 {
         return Err(syn::Error::new(
             proc_macro2::Span::call_site(),
-            format!("OID too long: {} bytes > 63 bytes", der_len),
+            format!("OID too long: {der_len} bytes > 63 bytes"),
         ));
     }
 

src/object_identifier.rs

@@ -193,7 +193,7 @@ mod tests {
     #[test]
     fn test_debug() {
         let oid = ObjectIdentifier::from_string("1.2.3.4").unwrap();
-        assert_eq!(format!("{:?}", oid), "ObjectIdentifier { oid: 1.2.3.4 }");
+        assert_eq!(format!("{oid:?}"), "ObjectIdentifier { oid: 1.2.3.4 }");
     }
 
     #[test]

src/parser.rs

@@ -140,19 +140,14 @@ impl fmt::Display for ParseError {
             ParseErrorKind::InvalidSize { min, max, actual } => {
                 write!(
                     f,
-                    "invalid container size (expected between {} and {}, got {})",
-                    min, max, actual
+                    "invalid container size (expected between {min} and {max}, got {actual})"
                 )
             }
             ParseErrorKind::UnexpectedTag { actual } => {
-                write!(f, "unexpected tag (got {:?})", actual)
+                write!(f, "unexpected tag (got {actual:?})")
             }
             ParseErrorKind::ShortData { needed } => {
-                write!(
-                    f,
-                    "short data (needed at least {} additional bytes)",
-                    needed
-                )
+                write!(f, "short data (needed at least {needed} additional bytes)")
             }
             ParseErrorKind::IntegerOverflow => write!(f, "integer overflow"),
             ParseErrorKind::ExtraData => write!(f, "extra data"),
@@ -438,7 +433,7 @@ mod tests {
                 "ParseError { kind: InvalidValue, location: [\"Abc::123\", 12] }",
             ),
         ] {
-            assert_eq!(&format!("{:?}", e), expected);
+            assert_eq!(&format!("{e:?}"), expected);
         }
     }
 
@@ -500,7 +495,7 @@ mod tests {
             ),
         ]
         {
-            assert_eq!(&format!("{}", e), expected);
+            assert_eq!(&format!("{e}"), expected);
         }
     }