Enum ServerRole 

pub enum ServerRole {}

Marker for middleware handling messages sent by a PostgreSQL server.

Trait Implementations

impl Clone for ServerRole

fn clone(&self) -> ServerRole

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ServerRole

impl Debug for ServerRole

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ServerRole

impl PartialEq for ServerRole

fn eq(&self, other: &ServerRole) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for Ready

type ProtocolPhase = Ready

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ReadyExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for FunctionCalling

type ProtocolPhase = FunctionCalling

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<FunctionCallingExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for SimpleQuery

type ProtocolPhase = Simple

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for Building

type ProtocolPhase = Building

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<BuildingExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for BoundBuilding

type ProtocolPhase = BoundBuilding

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<BoundBuildingExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for AwaitingReady

type ProtocolPhase = AwaitingReady

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<AwaitingReadyExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for CopyIn

type ProtocolPhase = CopyIn

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<CopyInExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for CopyOut

type ProtocolPhase = CopyOut

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<CopyOutExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for CopyBoth

type ProtocolPhase = CopyBoth

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<CopyBothExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for CopyBothClientDone

type ProtocolPhase = CopyBothClientDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<CopyBothClientDoneExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for CopyBothServerDone

type ProtocolPhase = CopyBothServerDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<CopyBothServerDoneExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for Draining

type ProtocolPhase = Draining

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<DrainingExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for Resetting

type ProtocolPhase = Resetting

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ResettingExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for ResetComplete

type ProtocolPhase = ResetComplete

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ResetCompleteExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for Auth

type ProtocolPhase = Auth

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<AuthExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for TokenChallenge

type ProtocolPhase = TokenChallenge

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<TokenChallengeExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for Sasl

type ProtocolPhase = Sasl

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SaslExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for AwaitingAuthOk

type ProtocolPhase = AwaitingAuthOk

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<AwaitingAuthOkExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, BackendMessage> for AwaitingStartupReady

type ProtocolPhase = AwaitingStartupReady

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<AwaitingStartupReadyExternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, EncryptionReply> for AwaitingSslReply

type ProtocolPhase = AwaitingSslReply

Generated grammar phase corresponding to the connection typestate.

type Message = AwaitingSslReplyExternalMessage

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Inbound, ServerRole, EncryptionReply> for AwaitingGssReply

type ProtocolPhase = AwaitingGssReply

Generated grammar phase corresponding to the connection typestate.

type Message = AwaitingGssReplyExternalMessage

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerSimpleQuery

type ProtocolPhase = Simple

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerSimpleError

type ProtocolPhase = SimpleError

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleErrorInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerBuilding

type ProtocolPhase = Building

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<BuildingInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerParse

type ProtocolPhase = ParseResponse

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ParseResponseInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerBind

type ProtocolPhase = BindResponse

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<BindResponseInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerDescribe

type ProtocolPhase = DescribeResponse

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<DescribeResponseInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerExecute

type ProtocolPhase = ExecuteResponse

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExecuteResponseInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerClose

type ProtocolPhase = CloseResponse

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<CloseResponseInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerExtendedError

type ProtocolPhase = ExtendedError

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExtendedErrorInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerSync

type ProtocolPhase = SyncResponse

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SyncResponseInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerFunctionCall

type ProtocolPhase = FunctionResponse

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<FunctionResponseInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerFunctionCallDone

type ProtocolPhase = FunctionReady

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<FunctionReadyInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerFunctionCallError

type ProtocolPhase = FunctionReady

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<FunctionReadyInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyIn<CopySimple>

type ProtocolPhase = SimpleCopyIn

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleCopyInInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyInDone<CopySimple>

type ProtocolPhase = SimpleCopyInDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleCopyInDoneInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyInFailed<CopySimple>

type ProtocolPhase = SimpleCopyInFailed

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleCopyInFailedInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyOut<CopySimple>

type ProtocolPhase = SimpleCopyOut

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleCopyOutInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyOutDone<CopySimple>

type ProtocolPhase = SimpleCopyOutDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleCopyOutDoneInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyIn<CopyExtended>

type ProtocolPhase = ExtendedCopyIn

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExtendedCopyInInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyInDone<CopyExtended>

type ProtocolPhase = ExtendedCopyInDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExtendedCopyInDoneInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyInFailed<CopyExtended>

type ProtocolPhase = ExtendedCopyInFailed

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExtendedCopyInFailedInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyOut<CopyExtended>

type ProtocolPhase = ExtendedCopyOut

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExtendedCopyOutInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyOutDone<CopyExtended>

type ProtocolPhase = ExtendedCopyOutDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExtendedCopyOutDoneInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyBoth<CopySimple, BothOpen>

type ProtocolPhase = SimpleCopyBoth

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleCopyBothInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyBoth<CopySimple, BothClientDone>

type ProtocolPhase = SimpleCopyBothClientDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleCopyBothClientDoneInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyBoth<CopySimple, BothServerDone>

type ProtocolPhase = SimpleCopyBothServerDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleCopyBothServerDoneInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyBoth<CopySimple, BothDone>

type ProtocolPhase = SimpleCopyBothDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleCopyBothDoneInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyBothFailed<CopySimple>

type ProtocolPhase = SimpleCopyBothFailed

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SimpleCopyBothFailedInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyBoth<CopyExtended, BothOpen>

type ProtocolPhase = ExtendedCopyBoth

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExtendedCopyBothInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyBoth<CopyExtended, BothClientDone>

type ProtocolPhase = ExtendedCopyBothClientDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExtendedCopyBothClientDoneInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyBoth<CopyExtended, BothServerDone>

type ProtocolPhase = ExtendedCopyBothServerDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExtendedCopyBothServerDoneInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyBoth<CopyExtended, BothDone>

type ProtocolPhase = ExtendedCopyBothDone

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExtendedCopyBothDoneInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerCopyBothFailed<CopyExtended>

type ProtocolPhase = ExtendedCopyBothFailed

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<ExtendedCopyBothFailedInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerStartupRejected

type ProtocolPhase = Startup

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<StartupInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerAuth

type ProtocolPhase = Auth

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<AuthInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerPassword

type ProtocolPhase = PasswordResponse

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<PasswordResponseInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerSaslInitial

type ProtocolPhase = SaslInitial

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SaslInitialInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerSasl

type ProtocolPhase = Sasl

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SaslInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerSaslResponse

type ProtocolPhase = SaslResponse

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<SaslResponseInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerAuthResponse

type ProtocolPhase = TokenResponse

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<TokenResponseInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerAuthPolicy

type ProtocolPhase = TokenPolicy

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<TokenPolicyInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, BackendMessage> for ServerStartupReady

type ProtocolPhase = StartupReady

Generated grammar phase corresponding to the connection typestate.

type Message = TypedBackendMessage<StartupReadyInternalMessage>

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, EncryptionReply> for ServerSslDecision

type ProtocolPhase = SslDecision

Generated grammar phase corresponding to the connection typestate.

type Message = SslDecisionInternalMessage

Opaque set of messages legal for this direction, role, and phase.

impl PhaseAssociation<Outbound, ServerRole, EncryptionReply> for ServerGssDecision

type ProtocolPhase = GssDecision

Generated grammar phase corresponding to the connection typestate.

type Message = GssDecisionInternalMessage

Opaque set of messages legal for this direction, role, and phase.

impl StructuralPartialEq for ServerRole