rust: remove Default implementation for enums

PR OpenAPITools#15856 removed the derived Default implementations for structs, but left
those for enums. Since enums do not have a sensible default (see OpenAPITools#10845),
these should not be derived either. This is technically a breaking change,
but it's also a bug fix since Default was intended to be removed in 7.0.0.

modules/openapi-generator/src/main/resources/rust/model.mustache

@@ -28,14 +28,6 @@ impl ToString for {{{classname}}} {
         }
     }
 }
-
-impl Default for {{{classname}}} {
-    fn default() -> {{{classname}}} {
-        {{#allowableValues}}
-        Self::{{ enumVars.0.name }}
-        {{/allowableValues}}
-    }
-}
 {{/isEnum}}
 
 {{!-- for schemas that have a discriminator --}}
@@ -103,14 +95,6 @@ pub enum {{{enumName}}} {
 {{/enumVars}}
 {{/allowableValues}}
 }
-
-impl Default for {{{enumName}}} {
-    fn default() -> {{{enumName}}} {
-        {{#allowableValues}}
-        Self::{{ enumVars.0.name }}
-        {{/allowableValues}}
-    }
-}
 {{/isEnum}}
 {{/vars}}
 

samples/client/petstore/rust/hyper/petstore/src/models/baz.rs

@@ -32,12 +32,6 @@ impl ToString for Baz {
     }
 }
 
-impl Default for Baz {
-    fn default() -> Baz {
-        Self::A
-    }
-}
-
 
 
 

samples/client/petstore/rust/hyper/petstore/src/models/enum_array_testing.rs

@@ -38,9 +38,3 @@ pub enum RequiredEnums {
     C,
 }
 
-impl Default for RequiredEnums {
-    fn default() -> RequiredEnums {
-        Self::A
-    }
-}
-

samples/client/petstore/rust/hyper/petstore/src/models/order.rs

@@ -54,9 +54,3 @@ pub enum Status {
     Delivered,
 }
 
-impl Default for Status {
-    fn default() -> Status {
-        Self::Placed
-    }
-}
-

samples/client/petstore/rust/hyper/petstore/src/models/pet.rs

@@ -54,9 +54,3 @@ pub enum Status {
     Sold,
 }
 
-impl Default for Status {
-    fn default() -> Status {
-        Self::Available
-    }
-}
-

samples/client/petstore/rust/hyper/petstore/src/models/unique_item_array_testing.rs

@@ -39,9 +39,3 @@ pub enum UniqueItemArray {
     Variant3,
 }
 
-impl Default for UniqueItemArray {
-    fn default() -> UniqueItemArray {
-        Self::Variant1
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-async-middleware/src/models/baz.rs

@@ -32,12 +32,6 @@ impl ToString for Baz {
     }
 }
 
-impl Default for Baz {
-    fn default() -> Baz {
-        Self::A
-    }
-}
-
 
 
 

samples/client/petstore/rust/reqwest/petstore-async-middleware/src/models/enum_array_testing.rs

@@ -38,9 +38,3 @@ pub enum RequiredEnums {
     C,
 }
 
-impl Default for RequiredEnums {
-    fn default() -> RequiredEnums {
-        Self::A
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-async-middleware/src/models/order.rs

@@ -54,9 +54,3 @@ pub enum Status {
     Delivered,
 }
 
-impl Default for Status {
-    fn default() -> Status {
-        Self::Placed
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-async-middleware/src/models/pet.rs

@@ -54,9 +54,3 @@ pub enum Status {
     Sold,
 }
 
-impl Default for Status {
-    fn default() -> Status {
-        Self::Available
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-async-middleware/src/models/unique_item_array_testing.rs

@@ -39,9 +39,3 @@ pub enum UniqueItemArray {
     Variant3,
 }
 
-impl Default for UniqueItemArray {
-    fn default() -> UniqueItemArray {
-        Self::Variant1
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-async/src/models/baz.rs

@@ -32,12 +32,6 @@ impl ToString for Baz {
     }
 }
 
-impl Default for Baz {
-    fn default() -> Baz {
-        Self::A
-    }
-}
-
 
 
 

samples/client/petstore/rust/reqwest/petstore-async/src/models/enum_array_testing.rs

@@ -38,9 +38,3 @@ pub enum RequiredEnums {
     C,
 }
 
-impl Default for RequiredEnums {
-    fn default() -> RequiredEnums {
-        Self::A
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-async/src/models/order.rs

@@ -54,9 +54,3 @@ pub enum Status {
     Delivered,
 }
 
-impl Default for Status {
-    fn default() -> Status {
-        Self::Placed
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-async/src/models/pet.rs

@@ -54,9 +54,3 @@ pub enum Status {
     Sold,
 }
 
-impl Default for Status {
-    fn default() -> Status {
-        Self::Available
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-async/src/models/unique_item_array_testing.rs

@@ -39,9 +39,3 @@ pub enum UniqueItemArray {
     Variant3,
 }
 
-impl Default for UniqueItemArray {
-    fn default() -> UniqueItemArray {
-        Self::Variant1
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-awsv4signature/src/models/baz.rs

@@ -32,12 +32,6 @@ impl ToString for Baz {
     }
 }
 
-impl Default for Baz {
-    fn default() -> Baz {
-        Self::A
-    }
-}
-
 
 
 

samples/client/petstore/rust/reqwest/petstore-awsv4signature/src/models/enum_array_testing.rs

@@ -38,9 +38,3 @@ pub enum RequiredEnums {
     C,
 }
 
-impl Default for RequiredEnums {
-    fn default() -> RequiredEnums {
-        Self::A
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-awsv4signature/src/models/order.rs

@@ -54,9 +54,3 @@ pub enum Status {
     Delivered,
 }
 
-impl Default for Status {
-    fn default() -> Status {
-        Self::Placed
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-awsv4signature/src/models/pet.rs

@@ -54,9 +54,3 @@ pub enum Status {
     Sold,
 }
 
-impl Default for Status {
-    fn default() -> Status {
-        Self::Available
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore-awsv4signature/src/models/unique_item_array_testing.rs

@@ -39,9 +39,3 @@ pub enum UniqueItemArray {
     Variant3,
 }
 
-impl Default for UniqueItemArray {
-    fn default() -> UniqueItemArray {
-        Self::Variant1
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore/src/models/baz.rs

@@ -32,12 +32,6 @@ impl ToString for Baz {
     }
 }
 
-impl Default for Baz {
-    fn default() -> Baz {
-        Self::A
-    }
-}
-
 
 
 

samples/client/petstore/rust/reqwest/petstore/src/models/enum_array_testing.rs

@@ -38,9 +38,3 @@ pub enum RequiredEnums {
     C,
 }
 
-impl Default for RequiredEnums {
-    fn default() -> RequiredEnums {
-        Self::A
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore/src/models/order.rs

@@ -54,9 +54,3 @@ pub enum Status {
     Delivered,
 }
 
-impl Default for Status {
-    fn default() -> Status {
-        Self::Placed
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore/src/models/pet.rs

@@ -54,9 +54,3 @@ pub enum Status {
     Sold,
 }
 
-impl Default for Status {
-    fn default() -> Status {
-        Self::Available
-    }
-}
-

samples/client/petstore/rust/reqwest/petstore/src/models/unique_item_array_testing.rs

@@ -39,9 +39,3 @@ pub enum UniqueItemArray {
     Variant3,
 }
 
-impl Default for UniqueItemArray {
-    fn default() -> UniqueItemArray {
-        Self::Variant1
-    }
-}
-