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Cairo Starknet Types

Explain Starknet-specific types like ContractAddress, StorageAddress, ClassHash, EthAddress, BlockInfo, and TxInfo; use when a request involves these core Starknet types in Cairo.

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Cairo Starknet Types

Overview

Explain the core Starknet types and when to use them instead of raw felt values.

Quick Use

  • Read references/starknet-types.md before answering.
  • Use explicit type conversions when needed (try_from, into, or constructors).
  • Mention range constraints for addresses and hashes.

Response Checklist

  • Use ContractAddress for any contract address parameter or storage.
  • Use StorageAddress and StorageBaseAddress for storage slot computations.
  • Use ClassHash for class identifiers and EthAddress for L1 addresses.
  • Use BlockInfo and TxInfo for environment context.

Example Requests

  • "How do I convert a felt into a ContractAddress?"
  • "What is ClassHash used for?"
  • "What is the difference between StorageAddress and StorageBaseAddress?"

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