Crate ink_macro

Macros

• blake2x256
  Computes and expands into the BLAKE2b 256-bit hash of the string input.
• selector_bytes
  Computes the ink! selector of the string and expands into its byte representation.
• selector_id
  Computes the ink! selector of the string and expands into its u32 representation.

Attribute Macros

• chain_extension
  Defines the interface for a chain extension.
• contract
  Entry point for writing ink! smart contracts.
• event
  Implements the necessary traits for a struct to be emitted as an event from a contract.
• scale_derive
  Derive the re-exported traits ink::scale::Encode, ink::scale::Decode and ink::scale_info::TypeInfo. It enables using the built in derive macros for these traits without depending directly on the parity-scale-codec and scale-info crates.
• storage_item
  Prepares the type to be fully compatible and usable with the storage. It implements all necessary traits and calculates the storage key for types. Packed types don’t have a storage key, but non-packed types (like Mapping, Lazy etc.) require calculating the storage key during compilation.
• test
  Defines a unit test that makes use of ink!’s off-chain testing capabilities.
• trait_definition
  Marks trait definitions to ink! as special ink! trait definitions.

Derive Macros

• Event
  Derives an implementation of the [ink::Event] trait for the given struct.
• EventMetadata
  Derives the [ink::EventMetadata] trait for the given struct, which provides metadata about the event definition.
• Storable
  Derives ink::storage’s Storable trait for the given struct, enum or union.
• StorableHint
  Derives ink::storage’s StorableHint trait for the given struct or enum.
• StorageKey
  Derives ink::storage’s StorageKey trait for the given struct or enum.
• StorageLayout
  Derives ink::storage’s StorageLayout trait for the given struct or enum.