JsonAccumulator class

Accumulates a JSON document that arrives in fragments and parses it tolerantly while still incomplete.

Tool-call arguments stream from the model as a sequence of partial JSON strings. A naive jsonDecode of the buffer throws until the very last fragment lands, which makes live rendering impossible. JsonAccumulator instead repairs the partial buffer — closing open strings and containers and dropping any trailing incomplete token — so callers can show a best-effort view at every step, then validate strictly once the document is complete.

The repair is conservative: it never throws and never invents data. When a trailing value cannot be completed safely it is dropped rather than guessed, so parsePartial only ever returns a prefix of the eventual document.

Constructors

JsonAccumulator()

Properties

hashCode → int
The hash code for this object.
no setterinherited
isEmpty → bool
Whether nothing has been accumulated yet.
no setter
raw → String
The raw accumulated text.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

add(String fragment) → void
Appends a fragment to the buffer.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
parsePartial() → Object?
Returns a best-effort decode of the (possibly partial) buffer.
reset() → void
Clears the buffer and cached partial result.
toString() → String
A string representation of this object.
inherited
tryParseComplete() → Object?
Strictly parses the buffer, returning null if it is not yet valid JSON.

Operators

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