Rust codegen improvements and lint fixes (#6046)

* Improve rust codegen

* one more unneeded lifetime

* Added a derive default

Co-authored-by: Casper Neo <cneo@google.com>

2 files changed, 8 insertions, 12 deletions

diff --git a/tests/include_test/include_test1_generated.rs b/tests/include_test/include_test1_generated.rs
index e6e7d490..3c549e01 100644
--- a/tests/include_test/include_test1_generated.rs
+++ b/tests/include_test/include_test1_generated.rs
@@ -20,9 +20,7 @@ impl<'a> flatbuffers::Follow<'a> for TableA<'a> {
     type Inner = TableA<'a>;
     #[inline]
     fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
-        Self {
-            _tab: flatbuffers::Table { buf: buf, loc: loc },
-        }
+        Self { _tab: flatbuffers::Table { buf, loc } }
     }
 }
 
@@ -51,7 +49,7 @@ impl<'a> TableA<'a> {
 }
 
 pub struct TableAArgs<'a> {
-    pub b: Option<flatbuffers::WIPOffset<my_game::other_name_space::TableB<'a >>>,
+    pub b: Option<flatbuffers::WIPOffset<my_game::other_name_space::TableB<'a>>>,
 }
 impl<'a> Default for TableAArgs<'a> {
     #[inline]
diff --git a/tests/include_test/sub/include_test2_generated.rs b/tests/include_test/sub/include_test2_generated.rs
index eee54a93..a3500c97 100644
--- a/tests/include_test/sub/include_test2_generated.rs
+++ b/tests/include_test/sub/include_test2_generated.rs
@@ -71,12 +71,12 @@ impl flatbuffers::Push for FromInclude {
 }
 
 #[allow(non_camel_case_types)]
-pub const ENUM_VALUES_FROM_INCLUDE:[FromInclude; 1] = [
+pub const ENUM_VALUES_FROM_INCLUDE: [FromInclude; 1] = [
   FromInclude::IncludeVal
 ];
 
 #[allow(non_camel_case_types)]
-pub const ENUM_NAMES_FROM_INCLUDE:[&'static str; 1] = [
+pub const ENUM_NAMES_FROM_INCLUDE: [&str; 1] = [
     "IncludeVal"
 ];
 
@@ -130,13 +130,13 @@ impl<'b> flatbuffers::Push for &'b Unused {
 
 
 impl Unused {
-  pub fn new<'a>(_a: i32) -> Self {
+  pub fn new(_a: i32) -> Self {
     Unused {
       a_: _a.to_little_endian(),
 
     }
   }
-  pub fn a<'a>(&'a self) -> i32 {
+  pub fn a(&self) -> i32 {
     self.a_.from_little_endian()
   }
 }
@@ -152,9 +152,7 @@ impl<'a> flatbuffers::Follow<'a> for TableB<'a> {
     type Inner = TableB<'a>;
     #[inline]
     fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
-        Self {
-            _tab: flatbuffers::Table { buf: buf, loc: loc },
-        }
+        Self { _tab: flatbuffers::Table { buf, loc } }
     }
 }
 
@@ -183,7 +181,7 @@ impl<'a> TableB<'a> {
 }
 
 pub struct TableBArgs<'a> {
-    pub a: Option<flatbuffers::WIPOffset<super::super::TableA<'a >>>,
+    pub a: Option<flatbuffers::WIPOffset<super::super::TableA<'a>>>,
 }
 impl<'a> Default for TableBArgs<'a> {
     #[inline]