[GitHub] [arrow-rs] viirya commented on a diff in pull request #3010: Fix some clippy errors after updating rust toolchain

[GitBox <gi...@apache.org>]

viirya commented on code in PR #3010:
URL: https://github.com/apache/arrow-rs/pull/3010#discussion_r1013283672


##########
arrow-schema/src/field.rs:
##########
@@ -200,12 +200,12 @@ impl Field {
     /// within `self` contained within this field (including `self`)
     pub(crate) fn fields(&self) -> Vec<&Field> {
         let mut collected_fields = vec![self];
-        collected_fields.append(&mut self._fields(&self.data_type));
+        collected_fields.append(&mut Field::_fields(&self.data_type));
 
         collected_fields
     }
 
-    fn _fields<'a>(&'a self, dt: &'a DataType) -> Vec<&Field> {
+    fn _fields(dt: &DataType) -> Vec<&Field> {

Review Comment:
   error: parameter is only used in recursion



##########
arrow/src/ipc/convert.rs:
##########
@@ -477,7 +477,6 @@ pub(crate) fn build_field<'a>(
 /// Get the IPC type of a data type
 pub(crate) fn get_fb_field_type<'a>(
     data_type: &DataType,
-    is_nullable: bool,

Review Comment:
   error: parameter is only used in recursion



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