Install panic handler automatically for all entry points

contracts/hackatom/src/contract.rs

@@ -21,8 +21,6 @@ pub fn instantiate(
     info: MessageInfo,
     msg: InstantiateMsg,
 ) -> Result<Response, HackError> {
-    install_panic_handler();
-
     // deps.api.debug("here we go 🚀");
 
     deps.storage.set(

packages/std/src/exports.rs

@@ -20,6 +20,7 @@ use crate::ibc::{
 };
 use crate::imports::{ExternalApi, ExternalQuerier, ExternalStorage};
 use crate::memory::{alloc, consume_region, release_buffer, Region};
+use crate::panic::install_panic_handler;
 use crate::query::CustomQuery;
 use crate::results::{ContractResult, QueryResponse, Reply, Response};
 use crate::serde::{from_slice, to_vec};
@@ -93,6 +94,7 @@ where
     C: CustomMsg,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_instantiate(
         instantiate_fn,
         env_ptr as *mut Region,
@@ -121,6 +123,7 @@ where
     C: CustomMsg,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_execute(
         execute_fn,
         env_ptr as *mut Region,
@@ -148,6 +151,7 @@ where
     C: CustomMsg,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_migrate(migrate_fn, env_ptr as *mut Region, msg_ptr as *mut Region);
     let v = to_vec(&res).unwrap();
     release_buffer(v) as u32
@@ -170,6 +174,7 @@ where
     C: CustomMsg,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_sudo(sudo_fn, env_ptr as *mut Region, msg_ptr as *mut Region);
     let v = to_vec(&res).unwrap();
     release_buffer(v) as u32
@@ -191,6 +196,7 @@ where
     C: CustomMsg,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_reply(reply_fn, env_ptr as *mut Region, msg_ptr as *mut Region);
     let v = to_vec(&res).unwrap();
     release_buffer(v) as u32
@@ -211,6 +217,7 @@ where
     M: DeserializeOwned,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_query(query_fn, env_ptr as *mut Region, msg_ptr as *mut Region);
     let v = to_vec(&res).unwrap();
     release_buffer(v) as u32
@@ -232,6 +239,7 @@ where
     Q: CustomQuery,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_ibc_channel_open(contract_fn, env_ptr as *mut Region, msg_ptr as *mut Region);
     let v = to_vec(&res).unwrap();
     release_buffer(v) as u32
@@ -255,6 +263,7 @@ where
     C: CustomMsg,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_ibc_channel_connect(contract_fn, env_ptr as *mut Region, msg_ptr as *mut Region);
     let v = to_vec(&res).unwrap();
     release_buffer(v) as u32
@@ -278,6 +287,7 @@ where
     C: CustomMsg,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_ibc_channel_close(contract_fn, env_ptr as *mut Region, msg_ptr as *mut Region);
     let v = to_vec(&res).unwrap();
     release_buffer(v) as u32
@@ -302,6 +312,7 @@ where
     C: CustomMsg,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_ibc_packet_receive(contract_fn, env_ptr as *mut Region, msg_ptr as *mut Region);
     let v = to_vec(&res).unwrap();
     release_buffer(v) as u32
@@ -326,6 +337,7 @@ where
     C: CustomMsg,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_ibc_packet_ack(contract_fn, env_ptr as *mut Region, msg_ptr as *mut Region);
     let v = to_vec(&res).unwrap();
     release_buffer(v) as u32
@@ -351,6 +363,7 @@ where
     C: CustomMsg,
     E: ToString,
 {
+    install_panic_handler();
     let res = _do_ibc_packet_timeout(contract_fn, env_ptr as *mut Region, msg_ptr as *mut Region);
     let v = to_vec(&res).unwrap();
     release_buffer(v) as u32

packages/std/src/panic.rs

@@ -1,6 +1,9 @@
 /// When compiled to Wasm, this installs a panic handler that aborts the
-/// contract in case of a panic.
+/// contract execution and sends the panic message and location to the host.
 /// For other targets, this is a noop.
+///
+/// This overrides any previous panic handler. See <https://doc.rust-lang.org/std/panic/fn.set_hook.html>
+/// for details.
 pub fn install_panic_handler() {
     #[cfg(target_arch = "wasm32")]
     {