diff --git a/build/StarcoinFramework/BuildInfo.yaml b/build/StarcoinFramework/BuildInfo.yaml
index 89da9a27..7dfd564e 100644
--- a/build/StarcoinFramework/BuildInfo.yaml
+++ b/build/StarcoinFramework/BuildInfo.yaml
@@ -84,6 +84,9 @@ compiled_package_info:
? address: "0x00000000000000000000000000000001"
name: Event
: StarcoinFramework
+ ? address: "0x00000000000000000000000000000001"
+ name: EventUtil
+ : StarcoinFramework
? address: "0x00000000000000000000000000000001"
name: FixedPoint32
: StarcoinFramework
@@ -264,7 +267,7 @@ compiled_package_info:
? address: "0x00000000000000000000000000000001"
name: YieldFarmingV2
: StarcoinFramework
- source_digest: 2317458930368CCF368CBFCFD2A2D84B74B03521306A30839C2CFFA9D0DCF89E
+ source_digest: 292D789D77E5CCC4DC7A710845C6751F5308EBD27AECB68680A2DF92F7A057F6
build_flags:
dev_mode: false
test_mode: false
diff --git a/build/StarcoinFramework/bytecode_modules/EventUtil.mv b/build/StarcoinFramework/bytecode_modules/EventUtil.mv
new file mode 100644
index 00000000..bcf5fb84
Binary files /dev/null and b/build/StarcoinFramework/bytecode_modules/EventUtil.mv differ
diff --git a/build/StarcoinFramework/docs/EventUtil.md b/build/StarcoinFramework/docs/EventUtil.md
new file mode 100644
index 00000000..420e3c6f
--- /dev/null
+++ b/build/StarcoinFramework/docs/EventUtil.md
@@ -0,0 +1,175 @@
+
+
+
+# Module `0x1::EventUtil`
+
+
+
+- [Resource `EventHandleWrapper`](#0x1_EventUtil_EventHandleWrapper)
+- [Constants](#@Constants_0)
+- [Function `init_event`](#0x1_EventUtil_init_event)
+- [Function `uninit_event`](#0x1_EventUtil_uninit_event)
+- [Function `emit_event`](#0x1_EventUtil_emit_event)
+- [Function `exist_event`](#0x1_EventUtil_exist_event)
+
+
+use 0x1::Errors;
+use 0x1::Event;
+use 0x1::Signer;
+
+
+
+
+
+
+## Resource `EventHandleWrapper`
+
+
+
+struct EventHandleWrapper<EventT: drop, store> has key
+
+
+
+
+
+Fields
+
+
+
+-
+
handle: Event::EventHandle<EventT>
+
+-
+
+
+
+
+
+
+
+
+
+## Constants
+
+
+
+
+
+
+const ERR_INIT_REPEATE: u64 = 101;
+
+
+
+
+
+
+
+
+const ERR_RESOURCE_NOT_EXISTS: u64 = 102;
+
+
+
+
+
+
+## Function `init_event`
+
+
+
+public fun init_event<EventT: drop, store>(sender: &signer)
+
+
+
+
+
+Implementation
+
+
+public fun init_event<EventT: store + drop>(sender: &signer) {
+ let broker = Signer::address_of(sender);
+ assert!(!exists<EventHandleWrapper<EventT>>(broker), Errors::invalid_state(ERR_INIT_REPEATE));
+ move_to(sender, EventHandleWrapper<EventT> {
+ handle: Event::new_event_handle<EventT>(sender)
+ });
+}
+
+
+
+
+
+
+
+
+## Function `uninit_event`
+
+
+
+public fun uninit_event<EventT: drop, store>(sender: &signer)
+
+
+
+
+
+Implementation
+
+
+public fun uninit_event<EventT: store + drop>(sender: &signer) acquires EventHandleWrapper {
+ let broker = Signer::address_of(sender);
+ assert!(exists<EventHandleWrapper<EventT>>(broker), Errors::invalid_state(ERR_RESOURCE_NOT_EXISTS));
+ let EventHandleWrapper<EventT> { handle } = move_from<EventHandleWrapper<EventT>>(broker);
+ Event::destroy_handle<EventT>(handle);
+}
+
+
+
+
+
+
+
+
+## Function `emit_event`
+
+
+
+public fun emit_event<EventT: drop, store>(broker: address, event: EventT)
+
+
+
+
+
+Implementation
+
+
+public fun emit_event<EventT: store + drop>(broker: address, event: EventT) acquires EventHandleWrapper {
+ let event_handle = borrow_global_mut<EventHandleWrapper<EventT>>(broker);
+ Event::emit_event(&mut event_handle.handle, event);
+}
+
+
+
+
+
+
+
+
+## Function `exist_event`
+
+
+
+public fun exist_event<EventT: drop, store>(broker: address): bool
+
+
+
+
+
+Implementation
+
+
+public fun exist_event<EventT: store + drop>(broker: address): bool {
+ exists<EventHandleWrapper<EventT>>(broker)
+}
+
+
+
+
+
diff --git a/build/StarcoinFramework/docs/README.md b/build/StarcoinFramework/docs/README.md
index 524f358e..dfddb1cc 100644
--- a/build/StarcoinFramework/docs/README.md
+++ b/build/StarcoinFramework/docs/README.md
@@ -38,6 +38,7 @@ This is the root document for the Move StarcoinFramework module documentation. T
- [`0x1::Epoch`](Epoch.md#0x1_Epoch)
- [`0x1::Errors`](Errors.md#0x1_Errors)
- [`0x1::Event`](Event.md#0x1_Event)
+- [`0x1::EventUtil`](EventUtil.md#0x1_EventUtil)
- [`0x1::FixedPoint32`](FixedPoint32.md#0x1_FixedPoint32)
- [`0x1::Genesis`](Genesis.md#0x1_Genesis)
- [`0x1::GenesisNFT`](GenesisNFT.md#0x1_GenesisNFT)
diff --git a/build/StarcoinFramework/source_maps/EventUtil.mvsm b/build/StarcoinFramework/source_maps/EventUtil.mvsm
new file mode 100644
index 00000000..91ef2539
Binary files /dev/null and b/build/StarcoinFramework/source_maps/EventUtil.mvsm differ
diff --git a/sources/EventUtil.move b/sources/EventUtil.move
new file mode 100644
index 00000000..1ecfceb5
--- /dev/null
+++ b/sources/EventUtil.move
@@ -0,0 +1,36 @@
+module StarcoinFramework::EventUtil {
+ use StarcoinFramework::Event;
+ use StarcoinFramework::Signer;
+ use StarcoinFramework::Errors;
+
+ const ERR_INIT_REPEATE: u64 = 101;
+ const ERR_RESOURCE_NOT_EXISTS: u64 = 102;
+
+ struct EventHandleWrapper has key {
+ handle: Event::EventHandle,
+ }
+
+ public fun init_event(sender: &signer) {
+ let broker = Signer::address_of(sender);
+ assert!(!exists>(broker), Errors::invalid_state(ERR_INIT_REPEATE));
+ move_to(sender, EventHandleWrapper {
+ handle: Event::new_event_handle(sender)
+ });
+ }
+
+ public fun uninit_event(sender: &signer) acquires EventHandleWrapper {
+ let broker = Signer::address_of(sender);
+ assert!(exists>(broker), Errors::invalid_state(ERR_RESOURCE_NOT_EXISTS));
+ let EventHandleWrapper { handle } = move_from>(broker);
+ Event::destroy_handle(handle);
+ }
+
+ public fun emit_event(broker: address, event: EventT) acquires EventHandleWrapper {
+ let event_handle = borrow_global_mut>(broker);
+ Event::emit_event(&mut event_handle.handle, event);
+ }
+
+ public fun exist_event(broker: address): bool {
+ exists>(broker)
+ }
+}