From 4bc41d1f78329ca7fbc76e11f9110668f3efeecd Mon Sep 17 00:00:00 2001
From: Softcloud <Softcloud1988@gmail.com>
Date: Sat, 3 Feb 2024 11:30:56 +0800
Subject: [PATCH] MOD: program get error hint.

---
 core/src/state/error.rs         | 2 +-
 core/src/state/state_storage.rs | 4 +++-
 zk-vm/src/lib.rs                | 5 ++++-
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/core/src/state/error.rs b/core/src/state/error.rs
index 5f349288..4cee03f0 100644
--- a/core/src/state/error.rs
+++ b/core/src/state/error.rs
@@ -16,7 +16,7 @@ pub enum StateError {
     #[error("VM json serde error")]
     JsonSerdeError(#[from] serde_json::Error),
 
-    #[error("Can not load the program")]
+    #[error("Can not load the program: {0}")]
     GetProgramError(String),
 
     #[error("Convert string error")]
diff --git a/core/src/state/state_storage.rs b/core/src/state/state_storage.rs
index 50835357..1b90f967 100644
--- a/core/src/state/state_storage.rs
+++ b/core/src/state/state_storage.rs
@@ -171,7 +171,9 @@ impl StateStorage {
             .map_err(StateError::GetProgramError)?;
         let res = self.db.get_cf(cf, addr_key);
         res.map_err(StateError::StorageIoError)?
-            .ok_or(StateError::ColumnFamilyEmpty)
+            .ok_or(StateError::GetProgramError(
+                "program hash get failed".to_string(),
+            ))
     }
 
     pub fn save_prophet(&mut self, code_hash: &TreeValue, prophet: &str) -> Result<(), StateError> {
diff --git a/zk-vm/src/lib.rs b/zk-vm/src/lib.rs
index d4b2526d..d304617a 100644
--- a/zk-vm/src/lib.rs
+++ b/zk-vm/src/lib.rs
@@ -211,7 +211,10 @@ impl OlaVM {
             let bin_program: BinaryProgram = match bincode::deserialize(&contract) {
                 Ok(data) => data,
                 Err(e) => {
-                    return Err(StateError::GetProgramError(format!("{:?}", e)));
+                    return Err(StateError::GetProgramError(format!(
+                        "deserialize program error, {:?}",
+                        e
+                    )));
                 }
             };