From c039d88f549e27a8f352dabbe5d02a52a67ec3da Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ale=C5=A1=20Bizjak?= <ab@concordium.com>
Date: Thu, 1 Feb 2024 08:42:03 +0100
Subject: [PATCH] Add helper.

---
 src/contract_client.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/contract_client.rs b/src/contract_client.rs
index ff3def33b..7bb66c4d2 100644
--- a/src/contract_client.rs
+++ b/src/contract_client.rs
@@ -496,6 +496,16 @@ pub enum DryRunModuleDeployError {
     },
 }
 
+impl DryRunModuleDeployError {
+    /// Check whether dry-run failed because the module already exists.
+    pub fn already_exists(&self) -> bool {
+        let Self::Failed(reason) = self else {
+            return false;
+        };
+        matches!(reason, RejectReason::ModuleHashAlreadyExists { .. })
+    }
+}
+
 impl From<RejectReason> for DryRunModuleDeployError {
     fn from(value: RejectReason) -> Self { Self::Failed(value) }
 }