fix some clippy warnings

gotham_restful/src/auth.rs

@@ -240,7 +240,7 @@ where
 		
 		// get the secret from the handler, possibly decoding claims ourselves
 		let secret = self.handler.jwt_secret(state, || {
-			let b64 = token.split(".").nth(1)?;
+			let b64 = token.split('.').nth(1)?;
 			let raw = base64::decode_config(b64, base64::URL_SAFE_NO_PAD).ok()?;
 			serde_json::from_slice(&raw).ok()?
 		});
@@ -261,7 +261,7 @@ where
 		};
 		
 		// we found a valid token
-		return AuthStatus::Authenticated(data);
+		AuthStatus::Authenticated(data)
 	}
 }
 

gotham_restful/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::tabs_in_doc_comments)]
 /*!
 This crate is an extension to the popular [gotham web framework][gotham] for Rust. The idea is to
 have several RESTful resources that can be added to the gotham router. This crate will take care

gotham_restful/src/openapi/router.rs

@@ -136,7 +136,7 @@ impl NewHandler for OpenapiHandler
 }
 
 #[cfg(feature = "auth")]
-const SECURITY_NAME : &'static str = "authToken";
+const SECURITY_NAME : &str = "authToken";
 
 #[cfg(feature = "auth")]
 fn get_security(state : &mut State) -> IndexMap<String, ReferenceOr<SecurityScheme>>
@@ -249,7 +249,7 @@ impl<'a> OperationParams<'a>
 		{
 			params.push(Item(Parameter::Path {
 				parameter_data: ParameterData {
-					name: param.to_string(),
+					name: (*param).to_string(),
 					description: None,
 					required: true,
 					deprecated: None,

gotham_restful/src/openapi/types.rs

@@ -9,7 +9,10 @@ use openapiv3::{
 };
 #[cfg(feature = "uuid")]
 use uuid::Uuid;
-use std::collections::{BTreeSet, HashSet};
+use std::{
+	collections::{BTreeSet, HashSet},
+	hash::BuildHasher
+};
 
 /**
 This struct needs to be available for every type that can be part of an OpenAPI Spec. It is
@@ -296,7 +299,7 @@ impl<T : OpenapiType> OpenapiType for BTreeSet<T>
 	}
 }
 
-impl<T : OpenapiType> OpenapiType for HashSet<T>
+impl<T : OpenapiType, S : BuildHasher> OpenapiType for HashSet<T, S>
 {
 	fn schema() -> OpenapiSchema
 	{

gotham_restful_derive/src/method.rs

@@ -120,6 +120,7 @@ impl Method
 	}
 }
 
+#[allow(clippy::large_enum_variant)]
 enum MethodArgumentType
 {
 	StateRef,
@@ -176,9 +177,8 @@ impl Spanned for MethodArgument
 
 fn interpret_arg_ty(index : usize, attrs : &[Attribute], name : &str, ty : Type) -> Result<MethodArgumentType, Error>
 {
-	let attr = attrs.into_iter()
-		.filter(|arg| arg.path.segments.iter().filter(|path| &path.ident.to_string() == "rest_arg").nth(0).is_some())
-		.nth(0)
+	let attr = attrs.iter()
+		.find(|arg| arg.path.segments.iter().any(|path| &path.ident.to_string() == "rest_arg"))
 		.map(|arg| arg.tokens.to_string());
 	
 	if cfg!(feature = "auth") && (attr.as_deref() == Some("auth") || (attr.is_none() && name == "auth"))
@@ -219,19 +219,17 @@ fn interpret_arg(index : usize, arg : &PatType) -> Result<MethodArgument, Error>
 }
 
 #[cfg(feature = "openapi")]
-fn expand_operation_id(attrs : &AttributeArgs) -> TokenStream2
+fn expand_operation_id(attrs : &[NestedMeta]) -> TokenStream2
 {
 	let mut operation_id : Option<&Lit> = None;
 	for meta in attrs
 	{
-		match meta {
-			NestedMeta::Meta(Meta::NameValue(kv)) => {
-				if kv.path.segments.last().map(|p| p.ident.to_string()) == Some("operation_id".to_owned())
-				{
-					operation_id = Some(&kv.lit)
-				}
-			},
-			_ => {}
+		if let NestedMeta::Meta(Meta::NameValue(kv)) = meta
+		{
+			if kv.path.segments.last().map(|p| p.ident.to_string()) == Some("operation_id".to_owned())
+			{
+				operation_id = Some(&kv.lit)
+			}
 		}
 	}
 	
@@ -247,25 +245,23 @@ fn expand_operation_id(attrs : &AttributeArgs) -> TokenStream2
 }
 
 #[cfg(not(feature = "openapi"))]
-fn expand_operation_id(_ : &AttributeArgs) -> TokenStream2
+fn expand_operation_id(_ : &[NestedMeta]) -> TokenStream2
 {
 	quote!()
 }
 
-fn expand_wants_auth(attrs : &AttributeArgs, default : bool) -> TokenStream2
+fn expand_wants_auth(attrs : &[NestedMeta], default : bool) -> TokenStream2
 {
 	let default_lit = Lit::Bool(LitBool { value: default, span: Span::call_site() });
 	let mut wants_auth = &default_lit;
 	for meta in attrs
 	{
-		match meta {
-			NestedMeta::Meta(Meta::NameValue(kv)) => {
-				if kv.path.segments.last().map(|p| p.ident.to_string()) == Some("wants_auth".to_owned())
-				{
-					wants_auth = &kv.lit
-				}
-			},
-			_ => {}
+		if let NestedMeta::Meta(Meta::NameValue(kv)) = meta
+		{
+			if kv.path.segments.last().map(|p| p.ident.to_string()) == Some("wants_auth".to_owned())
+			{
+				wants_auth = &kv.lit
+			}
 		}
 	}
 	
@@ -277,6 +273,7 @@ fn expand_wants_auth(attrs : &AttributeArgs, default : bool) -> TokenStream2
 	}
 }
 
+#[allow(clippy::comparison_chain)]
 fn expand(method : Method, attrs : TokenStream, item : TokenStream) -> Result<TokenStream2, Error>
 {
 	let krate = super::krate();
@@ -381,7 +378,7 @@ fn expand(method : Method, attrs : TokenStream, item : TokenStream) -> Result<To
 	{
 		block = quote!(#block; Default::default())
 	}
-	if let Some(arg) = args.iter().filter(|arg| (*arg).ty.is_database_conn()).nth(0)
+	if let Some(arg) = args.iter().find(|arg| (*arg).ty.is_database_conn())
 	{
 		if fun_is_async
 		{
@@ -403,7 +400,7 @@ fn expand(method : Method, attrs : TokenStream, item : TokenStream) -> Result<To
 			}
 		};
 	}
-	if let Some(arg) = args.iter().filter(|arg| (*arg).ty.is_auth_status()).nth(0)
+	if let Some(arg) = args.iter().find(|arg| (*arg).ty.is_auth_status())
 	{
 		let auth_ty = arg.ty.quote_ty();
 		state_block = quote! {

gotham_restful_derive/src/openapi_type.rs

@@ -44,22 +44,20 @@ fn expand_where(generics : &Generics) -> TokenStream2
 {
 	if generics.params.is_empty()
 	{
-		quote!()
+		return quote!();
 	}
-	else
-	{
-		let krate = super::krate();
-		let idents = generics.params.iter()
-			.map(|param| match param {
-				GenericParam::Type(ty) => Some(ty.ident.clone()),
-				_ => None
-			})
-			.filter(|param| param.is_some())
-			.map(|param| param.unwrap());
 	
-		quote! {
-			where #(#idents : #krate::OpenapiType),*
-		}
+	let krate = super::krate();
+	let idents = generics.params.iter()
+		.map(|param| match param {
+			GenericParam::Type(ty) => Some(ty.ident.clone()),
+			_ => None
+		})
+		.filter(|param| param.is_some())
+		.map(|param| param.unwrap());
+	
+	quote! {
+		where #(#idents : #krate::OpenapiType),*
 	}
 }
 
@@ -98,8 +96,7 @@ fn remove_parens(input : TokenStream2) -> TokenStream2
 		}
 		Box::new(iter::once(tt))
 	});
-	let output = TokenStream2::from_iter(iter);
-	output
+	TokenStream2::from_iter(iter)
 }
 
 fn parse_attributes(input : &[Attribute]) -> Result<Attrs, Error>

gotham_restful_derive/src/request_body.rs

@@ -67,7 +67,7 @@ fn expand(tokens : TokenStream) -> Result<TokenStream2, Error>
 		.filter(|attr| attr.path.segments.iter().last().map(|segment| segment.ident.to_string()) == Some("supported_types".to_string()))
 		.flat_map(|attr|
 			syn::parse2::<MimeList>(attr.tokens)
-				.map(|list| Box::new(list.0.into_iter().map(|mime| Ok(mime))) as Box<dyn Iterator<Item = Result<Path, Error>>>)
+				.map(|list| Box::new(list.0.into_iter().map(Ok)) as Box<dyn Iterator<Item = Result<Path, Error>>>)
 				.unwrap_or_else(|err| Box::new(iter::once(Err(err)))))
 		.collect_to_result()?;