address clippy warnings for azure_data_cosmos (#1399)

Author: demoray

sdk/data_cosmos/src/authorization_policy.rs

@@ -132,7 +132,7 @@ fn generate_resource_link(request: &Request) -> String {
         .map(|ending| &ending[1..]) // this is safe since every ENDING_STRING starts with a slash
         .any(|item| uri == item)
     {
-        "".to_string()
+        String::new()
     } else {
         uri.to_string()
     }

sdk/data_cosmos/src/clients/cosmos.rs

@@ -231,12 +231,12 @@ impl CloudLocation {
 
     fn auth_token(&self) -> AuthorizationToken {
         match self {
-            CloudLocation::Public { auth_token, .. } => auth_token.clone(),
-            CloudLocation::China { auth_token, .. } => auth_token.clone(),
+            CloudLocation::Public { auth_token, .. }
+            | CloudLocation::China { auth_token, .. }
+            | CloudLocation::Custom { auth_token, .. } => auth_token.clone(),
             CloudLocation::Emulator { .. } => {
                 AuthorizationToken::primary_from_base64(EMULATOR_ACCOUNT_KEY).unwrap()
             }
-            CloudLocation::Custom { auth_token, .. } => auth_token.clone(),
         }
     }
 }

sdk/data_cosmos/src/operations/create_or_replace_user_defined_function.rs

@@ -18,9 +18,10 @@ operation! {
 impl CreateOrReplaceUserDefinedFunctionBuilder {
     pub fn into_future(self) -> CreateOrReplaceUserDefinedFunction {
         Box::pin(async move {
-            let mut request = match self.is_create {
-                true => self.client.udfs_request(azure_core::Method::Post),
-                false => self.client.udf_request(azure_core::Method::Put),
+            let mut request = if self.is_create {
+                self.client.udfs_request(azure_core::Method::Post)
+            } else {
+                self.client.udf_request(azure_core::Method::Put)
             };
 
             if let Some(cl) = &self.consistency_level {

sdk/data_cosmos/src/resources/permission/permission.rs

@@ -81,8 +81,7 @@ impl PermissionMode {
     /// The full addressable path of the resource associated with the permission
     pub fn resource(&self) -> &str {
         match self {
-            Self::All(s) => s.as_ref(),
-            Self::Read(s) => s.as_ref(),
+            Self::All(s) | Self::Read(s) => s.as_ref(),
         }
     }
 }

sdk/data_cosmos/src/resources/permission/permission_token.rs

@@ -17,7 +17,7 @@ pub struct PermissionToken {
 
 impl PartialEq for PermissionToken {
     fn eq(&self, other: &Self) -> bool {
-        use AuthorizationToken::*;
+        use AuthorizationToken::{Primary, Resource};
         match (&self.token, &other.token) {
             (Primary(a), Primary(b)) => a == b,
             (Resource(a), Resource(b)) => a == b,