Switch from vector to slice to allow adding traits to multiple structs

Author: Guillermo Bescos

program/rust/build.rs

@@ -1,16 +1,15 @@
 mod build_utils;
 use bindgen::Builder;
 use std::collections::HashMap;
-use std::vec::Vec;
 
 
 fn main() {
     println!("cargo:rustc-link-search=../c/target");
 
-    let borsh_derives: Vec<String> = vec!["BorshSerialize".to_string(), "BorshDeserialize".to_string()];
+    let borsh_derives: &[&str] = &["BorshSerialize", "BorshDeserialize"];
 
     let parser = build_utils::DeriveAdderParserCallback{types_to_traits: HashMap::from([
-        ("cmd_hdr", borsh_derives)
+        ("cmd_hdr", borsh_derives), ("cmd_upd_price", borsh_derives)
         //map more struct names to traits here, be sure that the definitions of your traites
         //are included in c_oracle_header.rs
     ])};

program/rust/build_utils.rs

@@ -8,7 +8,7 @@ use std::collections::HashMap;
 ///is provided as a ParseCallback for bindgen
 #[derive(Debug)]
 pub struct DeriveAdderParserCallback<'a>{
-    pub types_to_traits: HashMap<&'a str, Vec<String>> ,
+    pub types_to_traits: HashMap<&'a str, &'a[&'a str]> ,
 }
 
 //this is required to implement the callback trait
@@ -18,7 +18,7 @@ impl ParseCallbacks for DeriveAdderParserCallback<'_>{
     fn add_derives(&self, _name: &str) -> Vec<String>{
         let traits = self.types_to_traits.get(_name);
         match traits{
-            Some(trait_names)=>trait_names.to_vec(),
+            Some(trait_names)=>trait_names.to_vec().iter().map(|s| s.to_string()).collect(),
             None => vec![],
         }
     }