Signature class final

The Signature object represents the call signature of a callable object and its return annotation. To retrieve a Signature object, use the inspect.signature function.

Reference: https://docs.python.org/3/library/inspect.html#inspect.Signature

Inheritance
  • Object
  • PythonObjectInterface<PythonFfiDelegate<Object?>, Object?>
  • PythonObject
  • PythonClass
  • Signature

Constructors

Signature.from(PythonClassInterface<PythonFfiDelegate<Object?>, Object?> classDelegate)
Wraps a Python object with the Signature class definition.

Properties

finalizer → Finalizer<(PythonFfiDelegate<Object?>, Object?)>
The finalizer for the python object. Gets invoked when the object is no longer accessible to the program.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
initializer → Initializer<PythonFfiDelegate<Object?>, Object?>
The initializer for the python object. Gets invoked at the start of the constructor.
finalinherited
parameters → UnmodifiableMapView<String, Parameter>
An ordered mapping of parameters’ names to the corresponding Parameter objects. Parameters appear in strict definition order, including keyword-only parameters.
no setter
platform → PythonFfiDelegate<Object?>
Gets the platform that this object is associated with.
no setterinherited
reference → Object?
Gets the reference to the python object.
no setterinherited
return_annotation → Object?
The “return” annotation for the callable. If the callable has no “return” annotation, this attribute is set to Signature.empty.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

debugDump({InspectionCache? cache}) → Map<String, Object?>
Dumps the python object to the console.
override
getAttribute<T extends Object?>(String attributeName) → T
Gets the attribute with the given name.
inherited
getAttributeOrNull<T extends Object?>(String attributeName) → T?
Gets the attribute with the given name or null if it does not exist.
inherited
getAttributeRaw<T extends PythonObjectInterface<PythonFfiDelegate<Object?>, Object?>>(String attributeName) → T
Gets the attribute with the given name.
inherited
getFunction(String name) → PythonFunctionInterface<PythonFfiDelegate<Object?>, Object?>
Gets the function with the given name.
inherited
getMethod(String functionName) → PythonFunctionInterface<PythonFfiDelegate<Object?>, Object?>
Gets a method from the class.
inherited
hasAttribute(String attributeName) → bool
Checks if the python object has the given attribute.
inherited
noSuchMethod(Invocation invocation) → Object?
Invoked when a nonexistent method or property is accessed.
inherited
setAttribute<T extends Object?>(String attributeName, T value) → void
Sets the attribute with the given name.
inherited
setAttributeRaw<T extends PythonObjectInterface<PythonFfiDelegate<Object?>, Object?>>(String attributeName, T value) → void
Sets the attribute with the given name.
inherited
toDartObject() → Object?
Converts the python object to a Dart object.
inherited
toString() → String
A string representation of this object.
inherited

Operators

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

Static Properties

empty → ReferenceEqualityWrapper
A special class-level marker to specify absence of a return annotation.
no setter