Crate devicerail_protocol 

Modules

feature

fixtures

Canonical cross-language Golden Fixtures embedded for consistency suites.

schema

Deterministic JSON Schema documents for the public wire DTOs.

Structs

ActionCall

ActionDefinition

ActionResult

AssetRef

ClearElementArguments

DeviceDisconnectResult

Result returned by device.disconnect.

DeviceExecuteParams

Parameters for device.execute.

DeviceId

DeviceInfo

DeviceSelectParams

Parameters accepted by device.select.

DeviceSelectResult

Result returned by device.select.

DevicesListResult

Result returned by devices.list.

ElementActionOutput

ElementSelector

Cross-channel selector. Native contexts use accessibility fields; web contexts may additionally use CSS. Context selection never carries a stale document epoch; resolved node references always carry the full context.

ErrorInfo

EventId

EventSequence

A one-based sequence number within one session.

EventStreamCursor

A Session-scoped, daemon-epoch-scoped application acknowledgement.

EventStreamEndpoint

A short-lived bearer URL. Debug intentionally never exposes its contents.

EventStreamEpoch

Identifies one daemon process lifetime. A cursor from another epoch must never be accepted as a resumable position.

EventSubscriptionId

EventsClearResult

Result returned by events.clear.

EventsListParams

Optional parameters accepted by events.list.

EventsStreamEventNotification

EventsStreamEventParams

EventsStreamOpenParams

EventsStreamOpenResult

EventsStreamTerminalNotification

EventsStreamTerminalParams

EventsSubscribeParams

EventsSubscribeResult

FeatureNegotiationError

FeatureOffer

FeatureSelection

FindElementArguments

FindElementResult

HelloParams

HelloResult

ManualActionStep

ManualRecording

A bounded, Driver-neutral record of human-selected Actions.

MediaFrame

MediaStreamCaptureParams

Parameters accepted by media.stream.capture.

MediaStreamCaptureResult

Result returned by media.stream.capture.

MediaStreamEndParams

Parameters accepted by media.stream.end.

MediaStreamEndResult

Result returned by media.stream.end.

MediaStreamId

MediaStreamInfo

MediaStreamStartParams

Parameters accepted by media.stream.start.

MediaStreamStartResult

Result returned by media.stream.start.

Observation

PeerInfo

ProtocolOffer

An explicit set of supported ranges. Multiple entries avoid implying support for major versions that a peer intentionally skipped.

ProtocolRange

A contiguous minor-version range within one protocol major version.

ProtocolSelection

ProtocolVersion

RecordedActionCall

Durable representation of an Action invocation.

RequestCancelParams

RequestCancelResult

RequestTimeoutMs

A positive timeout in milliseconds that is safe to represent as a JSON number in every supported client language.

RpcError

RpcRequest

SessionCurrentResult

Result returned by session.current.

SessionEndParams

Optional parameters accepted by session.end.

SessionExport

SessionExportParams

Optional parameters accepted by session.export.

SessionExportResult

Result returned by session.export.

SessionId

SessionInfo

SessionTargetParams

Optional session selector accepted by events.clear.

SetElementValueArguments

SystemDescribeResult

Result returned by system.describe.

TapElementArguments

TestEvent

TextMatch

TransportInfo

UiContextRef

Full identity of one native accessibility or web-document context. documentEpoch is required for both channels and changes after reconnect, navigation, or any replacement that invalidates prior node references.

UiContextSelector

Selects a current context without pretending to own its document epoch.

UiNode

One node in the normalized preorder list. Unknown platform values remain null; Drivers must not manufacture optimistic enabled/hittable states.

UiNodeRef

Durable reference to one node in one observed UI Tree.

UiRect

UiSnapshot

Canonical UI Tree. nodes is preorder and every parent must precede its contiguous descendants. The serialized payload is bounded to 768 KiB.

UiSnapshotGetParams

Parameters accepted by ui.snapshot.get.

UiSnapshotRef

Small Observation-side reference to a UI Tree Evidence object.

Verdict

VerdictRecordParams

Parameters accepted by verdict.record.

VerdictRecordResult

Result returned by verdict.record after the durable event append.

Viewport

WaitForElementArguments

WaitForElementResult

Enums

ActionExecution

ActionOutcome

The terminal outcome for one action call.

ActionProtection

CoordinateFallbackReason

ElementTarget

EventStreamOriginPolicy

Browser Origin policy bound to a single-use stream capability.

EventsStreamEventMethod

EventsStreamTerminalMethod

EventsStreamTermination

The terminal reason is a closed tagged union so reason/error combinations cannot become ambiguous on the wire.

JsonRpcVersion

ManualActionArguments

MediaStreamKind

Platform

ProtocolIncompatibilityReason

ProtocolNegotiationError

RequestCancelStatus

RpcId

RpcParams

RpcResponse

RpcServerMessage

RpcServerNotification

ScreenshotOmissionReason

SessionOutcome

SessionState

TestEventPayload

TextMatchMode

UiContextKind

UiContractError

UiSnapshotOmissionReason

VerdictStatus

VerdictValidationError

WaitForElementCondition

Constants

CLEAR_ELEMENT_ACTION

FIND_ELEMENT_ACTION

MANUAL_RECORDING_VERSION

Version of the portable manual Action recording document.

MAX_EVENTS_LIST_PAGE_SIZE

Largest page accepted by the snapshot-style events.list RPC.

MAX_SAFE_INTEGER

Largest integer that round-trips through JavaScript and JSON number implementations without loss.

MAX_SAFE_INTEGER_ID

MAX_UI_IDENTIFIER_LENGTH

MAX_UI_ROLE_LENGTH

MAX_UI_SNAPSHOT_BYTES

Leaves headroom for the JSON-RPC response envelope under the 1 MiB frame cap.

MAX_UI_SNAPSHOT_NODES

Hard limits shared by schema validation, Evidence loading, and Drivers.

MAX_UI_TEXT_LENGTH

MAX_VERDICT_EVIDENCE_REFERENCES

Maximum typed Evidence references attached to one Verdict.

MAX_VERDICT_SUMMARY_LENGTH

Maximum Unicode code points in a persisted Verdict summary.

PROTOCOL_VERSION

Highest protocol version implemented by this crate.

SEMANTIC_ACTION_NAMES

SET_ELEMENT_VALUE_ACTION

TAP_ELEMENT_ACTION

UI_SNAPSHOT_FORMAT_VERSION

Current canonical UI Tree payload version.

UI_SNAPSHOT_MEDIA_TYPE

Media type used by Evidence objects containing a canonical UI Tree.

WAIT_FOR_ELEMENT_ACTION

Functions

is_semantic_action_name

json_integer_as_i32

Interprets a JSON number using JSON Schema’s mathematical integer semantics and converts it to i32 when it is finite and in range.

json_integer_as_u32

Interprets a JSON number using JSON Schema’s mathematical integer semantics and converts it to u32 when it is finite and in range.

negotiate_features

negotiate_protocol

Selects the lexicographically newest version present in both offers.

supported_protocol_offer

Type Aliases

ClearElementResult

DeviceCapabilitiesResult

Result returned by device.capabilities.

DeviceConnectResult

Result returned by device.connect.

DeviceExecuteResult

Result returned by device.execute.

DeviceObserveResult

Result returned by device.observe.

EventsListResult

Result returned by events.list.

SessionEndResult

Result returned by session.end.

SessionStartResult

Result returned by session.start.

SessionsListResult

Result returned by sessions.list.

SetElementValueResult

TapElementResult

UiSnapshotGetResult

Result returned by ui.snapshot.get.