Crate casper_types

Types used to allow creation of Wasm contracts and tests for use on the Casper Platform.

Re-exports

• pub use crypto::*;

Modules

• account
  Contains types and constants associated with user accounts.
• api_error
  Contains ApiError and associated helper functions.
• bytesrepr
  Contains serialization and deserialization code for types used throughout the system.
• checksummed_hex
  Checksummed hex encoding following an EIP-55-like scheme.
• contracts
  Data types for supporting contract headers feature.
• crypto
  Cryptographic types and operations on them
• runtime_args
  Home of RuntimeArgs for calling contracts
• system
  System modules, formerly known as “system contracts”

Macros

• runtime_args
  Macro that makes it easier to construct named arguments.

Structs

• AccessRights
  A struct which behaves like a set of bitflags to define access rights associated with a URef.
• BlockTime
  A newtype wrapping a u64 which represents the block time.
• CLTypeMismatch
  Error while converting a CLValue into a given type.
• CLValue
  A Casper value, i.e. a value which can be stored and manipulated by smart contracts.
• ContextAccessRights
  Access rights for a given runtime context.
• Contract
  Methods and type signatures supported by a contract.
• ContractHash
  A newtype wrapping a HashAddr which references a Contract in the global state.
• ContractPackage
  Contract definition, metadata, and security container.
• ContractPackageHash
  A newtype wrapping a HashAddr which references a ContractPackage in the global state.
• ContractVersionKey
  Major element of ProtocolVersion combined with ContractVersion.
• ContractWasm
  A container for contract’s WASM bytes.
• ContractWasmHash
  A newtype wrapping a HashAddr which is the raw bytes of the ContractWasmHash
• DeployHash
  A newtype wrapping a [u8; DEPLOY_HASH_LENGTH] which is the raw bytes of the deploy hash.
• DeployInfo
  Information relating to the given Deploy.
• EntryPoint
  Type signature of a method. Order of arguments matter since can be referenced by index as well as name.
• EntryPoints
  Collection of named entry points
• EraId
  Era ID newtype.
• ExecutionEffect
  The journal of execution transforms from a single deploy.
• Gas
  The Gas struct represents a U512 amount of gas.
• Group
  A (labelled) “user group”. Each method of a versioned contract may be associated with one or more user groups which are allowed to call it.
• Motes
  A struct representing a number of Motes.
• NamedArg
  Named arguments to a contract.
• NamedKey
  A named key.
• Operation
  An operation performed while executing a deploy.
• Parameter
  Parameter to a method
• ProtocolVersion
  A newtype wrapping a SemVer which represents a Casper Platform protocol version.
• RuntimeArgs
  Represents a collection of arguments passed to a smart contract.
• SemVer
  A struct for semantic versioning.
• StoredValueTypeMismatch
  An error struct representing a type mismatch in StoredValue operations.
• TimeDiff
  A time difference between two timestamps.
• Timestamp
  A timestamp type, representing a concrete moment in time.
• Transfer
  Represents a transfer from one purse to another
• TransferAddr
  A newtype wrapping a [u8; TRANSFER_ADDR_LENGTH] which is the raw bytes of the transfer address.
• TransformEntry
  A transformation performed while executing a deploy.
• U128
  Little-endian large integer type
• U256
  Little-endian large integer type
• U512
  Little-endian large integer type
• URef
  Represents an unforgeable reference, containing an address in the network’s global storage and the AccessRights of the reference.

Enums

• ApiError
  Errors which can be encountered while running a smart contract.
• CLType
  Casper types, i.e. types which can be stored and manipulated by smart contracts.
• CLValueError
  Error relating to CLValue operations.
• EntryPointAccess
  Enum describing the possible access control options for a contract entry point (method).
• EntryPointType
  Context of method execution
• ExecutionResult
  The result of executing a single deploy.
• GrantedAccess
  Used to indicate if a granted URef was already held by the context.
• Key
  The type under which data (e.g. CLValues, smart contracts, user accounts) are indexed on the network.
• KeyFromStrError
  Errors produced when converting a String into a Key.
• KeyTag
• OpKind
  The type of operation performed while executing a deploy.
• ParseSemVerError
  Parsing error when creating a SemVer.
• Phase
  The phase in which a given contract is executing.
• StoredValue
  StoredValue represents all possible variants of values stored in Global State.
• TransferFromStrError
  Error returned when decoding a TransferAddr from a formatted string.
• TransferredTo
  The result of a successful transfer between purses.
• Transform
  The actual transformation performed while executing a deploy.
• UIntParseError
  Error type for parsing U128, U256, U512 from a string.
• URefFromStrError
  Error while parsing a URef from a formatted string.
• VersionCheckResult
  The result of ProtocolVersion::check_next_version.

Constants

• ACCESS_RIGHTS_SERIALIZED_LENGTH
  The number of bytes in a serialized AccessRights.
• BLAKE2B_DIGEST_LENGTH
  The number of bytes in a Blake2b hash
• BLOCKTIME_SERIALIZED_LENGTH
  The number of bytes in a serialized BlockTime.
• DEPLOY_HASH_LENGTH
  The length of a deploy hash.
• DICTIONARY_ITEM_KEY_MAX_LENGTH
  The maximum length for a dictionary_item_key.
• KEY_DICTIONARY_LENGTH
  The number of bytes in a Key::Dictionary.
• KEY_HASH_LENGTH
  The number of bytes in a Key::Hash.
• PHASE_SERIALIZED_LENGTH
  The number of bytes in a serialized Phase.
• SEM_VER_SERIALIZED_LENGTH
  Length of SemVer when serialized
• TRANSFER_ADDR_LENGTH
  The length of a transfer address.
• UREF_ADDR_LENGTH
  The number of bytes in a URef address.
• UREF_SERIALIZED_LENGTH
  The number of bytes in a serialized URef where the AccessRights are not None.

Traits

• CLTyped
  A type which can be described as a CLType.
• Tagged
  The quality of having a tag

Functions

• json_pretty_print
  Serializes the given data structure as a pretty-printed String of JSON using serde_json::to_string_pretty(), but after first reducing any large hex-string values.
• named_key_type
  Returns the CLType describing a “named key” on the system, i.e. a (String, Key).

Type Aliases

• ContractVersion
  Automatically incremented value for a contract version within a major ProtocolVersion.
• DictionaryAddr
  An alias for Keys dictionary variant.
• HashAddr
  An alias for Keys hash variant.
• TransferResult
  The result of an attempt to transfer between purses.
• URefAddr
  The address of a URef (unforgeable reference) on the network.