Storage

arb_storage

Struct Storage 

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pub struct Storage<D> {
    pub state: *mut State<D>,
    pub base_key: B256,
    pub account: Address,
}
Expand description

Hierarchical storage abstraction over EVM account state.

State lives in a specific account. Storage uses keccak256-based subspace derivation to create a hierarchical key space.

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§state: *mut State<D>§base_key: B256§account: Address

Implementations§

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impl<D: Database> Storage<D>

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pub fn new(state: *mut State<D>, base_key: B256) -> Self

Creates a new Storage backed by the ArbOS state account.

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pub fn new_with_account( state: *mut State<D>, base_key: B256, account: Address, ) -> Self

Creates a new Storage backed by a specific account.

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pub fn open_sub_storage(&self, sub_key: &[u8]) -> Storage<D>

Opens a child subspace by hashing the parent key with the child ID.

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pub fn get_by_uint64(&self, offset: u64) -> Result<B256, ()>

Reads a 32-byte value by uint64 offset.

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pub fn set_by_uint64(&self, offset: u64, value: B256) -> Result<(), ()>

Writes a 32-byte value by uint64 offset.

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pub fn get_uint64_by_uint64(&self, offset: u64) -> Result<u64, ()>

Reads a U256 by uint64 offset.

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pub fn set_uint64_by_uint64(&self, offset: u64, value: u64) -> Result<(), ()>

Writes a U256 by uint64 offset.

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pub fn get(&self, key: B256) -> Result<B256, ()>

Reads a 32-byte value by B256 key using mapAddress algorithm.

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pub fn set(&self, key: B256, value: B256) -> Result<(), ()>

Writes a 32-byte value by B256 key using mapAddress algorithm.

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pub fn new_slot(&self, offset: u64) -> U256

Creates a StorageSlot handle for a specific offset.

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pub fn state_ptr(&self) -> *mut State<D>

Returns the raw state pointer.

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pub fn base_key(&self) -> B256

Returns the base key for this storage subspace.

Trait Implementations§

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impl<D> Clone for Storage<D>

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<D: Send> Send for Storage<D>

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impl<D: Sync> Sync for Storage<D>

Auto Trait Implementations§

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impl<D> Freeze for Storage<D>

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impl<D> RefUnwindSafe for Storage<D>
where D: RefUnwindSafe,

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impl<D> Unpin for Storage<D>

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impl<D> UnwindSafe for Storage<D>
where D: RefUnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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Mutably borrows from an owned value. Read more
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where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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