StreamPart class sealed

A single chunk in the stream returned by stream_text. Mirrors StreamPart.ts (aimux-core/src/stream_part.rs).

StreamPart is an externally-tagged union: each part is a single-key map like {"TextDelta": {"id": "...", "delta": "..."}}. Modeled as a sealed class hierarchy so callers get compile-time types: every known variant is a typed subclass with named fields, and StreamPartUnknown is the fallback for tags added by newer core versions.

Known variants: StreamPartTextStart/StreamPartTextDelta/StreamPartTextEnd, StreamPartStreamStart, StreamPartFinish, StreamPartError, StreamPartToolInputStart/StreamPartToolInputDelta/StreamPartToolInputEnd, StreamPartToolCall, StreamPartToolResult, StreamPartFile, StreamPartReasoningStart/StreamPartReasoningDelta/StreamPartReasoningEnd, StreamPartResponseMetadata, StreamPartSource, StreamPartRaw. Narrow via switch/is/whereType to read variant-specific fields.

Implementers

Constructors

StreamPart.fromJson(Map<String, dynamic> json)
Decode an externally-tagged stream-part map. Unknown tags fall back to StreamPartUnknown instead of throwing.
factory

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
type → String
The variant tag — the single top-level key on the wire (e.g. 'TextDelta', 'ToolCall', 'ToolResult', 'File', 'Finish', 'Error'). Empty only for a malformed part.
no setter

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toJson() → Map<String, dynamic>
Re-encode to the externally-tagged wire shape ({tag: payload}).
toString() → String
A string representation of this object.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited