@tevm/voltaire

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@tevm/voltaire / Storage

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Storage

Storage Layout Utilities

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See

• https://eips.ethereum.org/EIPS/eip-7201 - Namespaced Storage Layout
• https://eips.ethereum.org/EIPS/eip-8042 - Diamond Storage

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Type Aliases

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StorageSlotType

StorageSlotType = Uint8Array & object

Defined in: src/primitives/Storage/StorageType.ts:7 Storage slot type (32 bytes) Represents a storage location in Ethereum contract storage

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Type Declaration

[brand]

readonly [brand]: "StorageSlot"

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Functions

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calculateErc7201()

calculateErc7201(keccak256, id): Uint8Array<ArrayBufferLike>

Defined in: src/primitives/Storage/calculateErc7201.js:10 Calculate ERC-7201 namespaced storage slot Formula: keccak256(keccak256(id) - 1) & ~0xff The result has the last byte cleared (set to 0x00)

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Parameters

keccak256

(data) => Uint8Array Keccak256 hash function

id

string Namespace identifier string

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Returns

Uint8Array<ArrayBufferLike> 32-byte storage slot

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See

https://eips.ethereum.org/EIPS/eip-7201

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calculateErc8042()

calculateErc8042(keccak256, id): Uint8Array<ArrayBufferLike>

Defined in: src/primitives/Storage/calculateErc8042.js:10 Calculate ERC-8042 (Diamond Storage) storage slot Formula: keccak256(id) Simpler than ERC-7201, just the direct hash of the identifier

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Parameters

keccak256

(data) => Uint8Array Keccak256 hash function

id

string Storage namespace identifier string

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Returns

Uint8Array<ArrayBufferLike> 32-byte storage slot

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See

https://eips.ethereum.org/EIPS/eip-8042