[rust] Extend oneOf array enum names with inner type

[rgroothuijsen]

When oneOf is specified with multiple types of array, Rust will not compile the resulting code because each enum option is named Array. This change extends the name of each type with its container type and inner data type, creating names such as ArrayVeci32 and ArrayVecString unless the user explicitly specifies another name using the title field.

Fixes #18527

@jacob-pro

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[wing328]

thanks for the pr

cc @frol (2017/07) @farcaller (2017/08) @richardwhiuk (2019/07) @paladinzh (2020/05) @jacob-pro (2022/10)

[wing328]

tested locally to confirm the fix

--- a/src/models/option1_or_option2_options.rs
+++ b/src/models/option1_or_option2_options.rs
@@ -14,13 +14,13 @@ use serde::{Deserialize, Serialize};
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 #[serde(untagged)]
 pub enum Option1OrOption2Options {
-    Array(Vec<String>),
-    Array(Vec<i32>),
+    ArrayVecString(Vec<String>),
+    ArrayVeci32(Vec<i32>),
 }

 impl Default for Option1OrOption2Options {
     fn default() -> Self {
-        Self::Array(Default::default())
+        Self::ArrayVecString(Default::default())
     }
 }

let's give it (bug fix) a try

if someone needs the old way to name the enum option, we can add an option to do so for fallback