MOD: deserialize program.

zk-vm/Cargo.toml

@@ -6,14 +6,15 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-ola-core = { package = "core", path = "../core", version = "0.1.0"}
+ola-core = { package = "core", path = "../core", version = "0.1.0" }
 executor = { package = "executor", path = "../executor", version = "0.1.0", default-features = false }
 serde_json = "1"
-serde = {version = "1" }
-serde_derive = {version = "1"}
+serde = { version = "1" }
+serde_derive = { version = "1" }
 env_logger = "0.6"
 log = "0.4"
 thiserror = "1.0"
-tokio = { version = "1", features = ["full","test-util"] }
+tokio = { version = "1", features = ["full", "test-util"] }
 tempfile = "3"
-rand = "0.8.5"
+rand = "0.8.5"
+bincode = "1.3.3"

zk-vm/src/lib.rs

@@ -159,8 +159,12 @@ impl OlaVM {
 
         if get_code {
             let contract = self.get_program(&code_hash)?;
-            let bin_program: BinaryProgram =
-                serde_json::from_str(std::str::from_utf8(&contract.to_vec()).unwrap()).unwrap();
+            let bin_program: BinaryProgram = match bincode::deserialize(&contract) {
+                Ok(data) => data,
+                Err(e) => {
+                    return Err(StateError::GetProgramError(format!("{:?}", e)));
+                }
+            };
 
             let instructions = bin_program.bytecode.split("\n");
             let code: Vec<_> = instructions