pub struct StorageNoopGuard(_);Expand description
Asserts that no storage changes took place between con- and destruction of Self.
This is easier than wrapping the whole code-block inside a assert_storage_noop!.
Example
ⓘ
use frame_support::{StorageNoopGuard, storage::unhashed::put};
sp_io::TestExternalities::default().execute_with(|| {
let _guard = frame_support::StorageNoopGuard::default();
put(b"key", b"value");
// Panics since there are storage changes.
});Trait Implementations§
§impl Default for StorageNoopGuard
impl Default for StorageNoopGuard
§fn default() -> StorageNoopGuard
fn default() -> StorageNoopGuard
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl RefUnwindSafe for StorageNoopGuard
impl Send for StorageNoopGuard
impl Sync for StorageNoopGuard
impl Unpin for StorageNoopGuard
impl UnwindSafe for StorageNoopGuard
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