Struct frame_support::storage::storage_noop_guard::StorageNoopGuard

pub struct StorageNoopGuard(_);

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() -> Self

Returns the “default value” for a type.

impl Drop for StorageNoopGuard

fn drop(&mut self)

Executes the destructor for this type.