Struct pallet_asset_management::storage::storage_noop_guard::StorageNoopGuard

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

fn default() -> StorageNoopGuard

Returns the “default value” for a type. Read more

impl Drop for StorageNoopGuard

fn drop(&mut self)

Executes the destructor for this 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

Blanket Implementations§

impl<T> Any for Twhere
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