remove VecArg junk

x/programs/rust/examples/token/src/lib.rs

@@ -1,4 +1,4 @@
-use wasmlanche_sdk::{program::Program, public, state::from_raw_ptr, state_keys, types::{Address, VecArg}};
+use wasmlanche_sdk::{program::Program, public, state::from_raw_ptr, state_keys, types::Address};
 
 /// The program state keys.
 #[state_keys]
@@ -102,10 +102,10 @@ pub fn transfer(program: Program, sender: Address, recipient: Address, amount: i
 
 /// Mints tokens to multiple recipients.
 #[public]
-pub fn mint_to_many(program: Program, recipients: VecArg<Address>, amounts: VecArg<i32>) -> bool {
+pub fn mint_to_many(program: Program, recipients: Vec<Address>, amounts: Vec<i32>) -> bool {
     assert_eq!(recipients.len(), amounts.len(), "invalid input");
 
-    for (recipient, amount) in recipients.as_vec().iter().zip(amounts.as_vec().iter()) {
+    for (recipient, amount) in recipients.iter().zip(amounts.iter()) {
         mint_to(program, *recipient, *amount as i64);
     }
 

x/programs/rust/wasmlanche_sdk/src/types.rs

@@ -189,21 +189,7 @@ impl Argument for String {
 }
 
 // Represents a vector with types that implement the Argument trait.
-pub struct VecArg<T>(Vec<T>);
-
-impl<T> VecArg<T> {
-    pub fn new(vec: Vec<T>) -> Self {
-        Self(vec)
-    }
-    pub fn as_vec(&self) -> &Vec<T> {
-        &self.0
-    }
-    pub fn len(&self) -> usize {
-        self.0.len()
-    }
-}
-
-impl<T> Argument for VecArg<T>
+impl<T> Argument for Vec<T>
 where
     T: Argument,
 {
@@ -224,7 +210,7 @@ where
             result_vec.push(elem);
         }
 
-        Self(result_vec)
+        result_vec
     }
 
     fn as_bytes(&self) -> Cow<'_, [u8]> {
@@ -233,10 +219,10 @@ where
         }
 
         // avoid reallocation
-        let mut bytes = Vec::with_capacity(self.len() * self.0[0].len());
-        for elem in &self.0 {
+        let mut bytes = Vec::with_capacity(self.len() * self[0].len());
+        for elem in self {
             bytes.extend_from_slice(&elem.as_bytes());
         }
         Cow::Owned(bytes)
     }
-}
+}