Change go-gen type mapping

Author: chipshort

packages/go-gen/src/main.rs

@@ -198,7 +198,7 @@ pub fn build_enum_variant(
 #[cfg(test)]
 mod tests {
     use cosmwasm_schema::cw_serde;
-    use cosmwasm_std::{Binary, Empty, HexBinary, Uint128};
+    use cosmwasm_std::{Binary, Checksum, Empty, HexBinary, Uint128};
 
     use super::*;
 
@@ -241,6 +241,7 @@ mod tests {
             binary: Binary,
             nested_binary: Vec<Option<Binary>>,
             hex_binary: HexBinary,
+            checksum: Checksum,
             uint128: Uint128,
         }
 
@@ -252,7 +253,8 @@ mod tests {
             r#"
             type SpecialTypes struct {
                 Binary []byte `json:"binary"`
-                HexBinary Checksum `json:"hex_binary"`
+                Checksum Checksum `json:"checksum"`
+                HexBinary string `json:"hex_binary"`
                 NestedBinary []*[]byte `json:"nested_binary"`
                 Uint128 string `json:"uint128"`
             }"#,

packages/go-gen/src/schema.rs

@@ -261,7 +261,8 @@ pub fn custom_type_of(ty: &str) -> Option<&str> {
     match ty {
         "Uint128" => Some("string"),
         "Binary" => Some("[]byte"),
-        "HexBinary" => Some("Checksum"),
+        "HexBinary" => Some("string"),
+        "Checksum" => Some("Checksum"),
         "Addr" => Some("string"),
         "Decimal" => Some("string"),
         "Decimal256" => Some("string"),