Trait concordium_std::marker::StructuralPartialEq

source ·

pub trait StructuralPartialEq { }

🔬This is a nightly-only experimental API. (structural_match)

Expand description

Required trait for constants used in pattern matches.

Any type that derives PartialEq automatically implements this trait, regardless of whether its type-parameters implement PartialEq.

If a const item contains some type that does not implement this trait, then that type either (1.) does not implement PartialEq (which means the constant will not provide that comparison method, which code generation assumes is available), or (2.) it implements its own version of PartialEq (which we assume does not conform to a structural-equality comparison).

In either of the two scenarios above, we reject usage of such a constant in a pattern match.

See also the structural match RFC, and issue 63438 which motivated migrating from an attribute-based design to this trait.

Implementors§

1.0.0 · source§

Trait concordium_std::marker::StructuralPartialEq

Implementors§

impl StructuralPartialEq for concordium_std::cmp::Ordering

impl StructuralPartialEq for TryReserveErrorKind

impl StructuralPartialEq for AccountKind

impl StructuralPartialEq for AmountParseError

impl StructuralPartialEq for CheckAccountSignatureError

impl StructuralPartialEq for LogError

impl StructuralPartialEq for NewAttributeValueError

impl StructuralPartialEq for NewContractNameError

impl StructuralPartialEq for NewReceiveNameError

impl StructuralPartialEq for ParseDurationError

impl StructuralPartialEq for PublicKey

impl StructuralPartialEq for Signature

impl StructuralPartialEq for SignatureKind

impl StructuralPartialEq for TransferError

impl StructuralPartialEq for UpgradeError

impl StructuralPartialEq for WasmVersion

impl StructuralPartialEq for concordium_std::fmt::Alignment

impl StructuralPartialEq for PureHashMarker

impl StructuralPartialEq for FpCategory

impl StructuralPartialEq for IntErrorKind

impl StructuralPartialEq for Fields

impl StructuralPartialEq for FunctionV1

impl StructuralPartialEq for SizeLength

impl StructuralPartialEq for Type

impl StructuralPartialEq for TestStateError

impl StructuralPartialEq for AsciiChar

impl StructuralPartialEq for IpAddr

impl StructuralPartialEq for Ipv6MulticastScope

impl StructuralPartialEq for SocketAddr

impl StructuralPartialEq for SearchStep

impl StructuralPartialEq for core::sync::atomic::Ordering

impl StructuralPartialEq for BacktraceStatus

impl StructuralPartialEq for VarError

impl StructuralPartialEq for SeekFrom

impl StructuralPartialEq for ErrorKind

impl StructuralPartialEq for Shutdown

impl StructuralPartialEq for BacktraceStyle

impl StructuralPartialEq for RecvTimeoutError

impl StructuralPartialEq for TryRecvError

impl StructuralPartialEq for hashbrown::TryReserveError

impl StructuralPartialEq for bool

impl StructuralPartialEq for char

impl StructuralPartialEq for i8

impl StructuralPartialEq for i16

impl StructuralPartialEq for i32

impl StructuralPartialEq for i64

impl StructuralPartialEq for i128

impl StructuralPartialEq for isize

impl StructuralPartialEq for str

impl StructuralPartialEq for u8

impl StructuralPartialEq for u16

impl StructuralPartialEq for u32

impl StructuralPartialEq for u64

impl StructuralPartialEq for u128

impl StructuralPartialEq for ()

impl StructuralPartialEq for usize

impl StructuralPartialEq for UnorderedKeyError

impl StructuralPartialEq for concordium_std::collections::TryReserveError

impl StructuralPartialEq for Error

impl StructuralPartialEq for Assume

impl StructuralPartialEq for ParseFloatError

impl StructuralPartialEq for ParseIntError

impl StructuralPartialEq for TryFromIntError

impl StructuralPartialEq for RangeFull

impl StructuralPartialEq for ContractV0

impl StructuralPartialEq for ContractV1

impl StructuralPartialEq for ContractV2

impl StructuralPartialEq for ContractV3

impl StructuralPartialEq for FunctionV2

impl StructuralPartialEq for ModuleV0

impl StructuralPartialEq for ModuleV1

impl StructuralPartialEq for ModuleV2

impl StructuralPartialEq for ModuleV3

impl StructuralPartialEq for AccountAddress

impl StructuralPartialEq for AccountBalance

impl StructuralPartialEq for AccountPublicKeys

impl StructuralPartialEq for AccountSignatures

impl StructuralPartialEq for Amount