What an action hands back when it hands back data rather than a file.
A marker interface, nothing more. Two things needed one:
Renderers were guessing: fw decided how to print a result by asking
value is Map || value is List, which is a test that says "this is a map"
rather than "this is a result". The moment a core returns a typed
object that test goes false and the output quietly degrades to
toString().
Cores were building maps by hand, nested three deep, which is where a
key spelled entires lives for months. A class with fields is checked by
the compiler, and — since the shape of an action's result is extracted
statically from that class — it is also what the capability document and an
agent get told.
jsonEncode calls toJson through its default toEncodable, so nothing
downstream needs to know about this type to encode one.
- Implementers
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toJson(
) → Map< String, Object?> - The wire form. Keys here are what every surface shows and what an agent parses, so they are part of the action's contract.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited