API reference - Class DeviceExtractorMOS4Transistor

Notation used in Ruby API documentation

Module: db

Description: A device extractor for a four-terminal MOS transistor

Class hierarchy: DeviceExtractorMOS4Transistor » DeviceExtractorBase

This class supplies the generic extractor for a MOS device. It is based on the DeviceExtractorMOS3Transistor class with the extension of a bulk terminal and corresponding bulk terminal output (annotation) layer.

The parameters of a MOS4 device are the same than for MOS3 devices. For the device layers the bulk layer is added.

The bulk terminals are output on this layer:

The bulk terminal layer can be empty. In this case, it needs to be connected to a global net to establish the net connection.

The device class produced by this extractor is DeviceClassMOS4Transistor.

This class is a closed one and methods cannot be reimplemented. To reimplement specific methods, see DeviceExtractor.

This class has been introduced in version 0.26.

Public constructors

new DeviceExtractorMOS4Transistor ptrnew(string name,
bool strict = false,
DeviceClassFactory ptr factory = none)
Creates a new device extractor with the given name

Public methods

void_createEnsures the C++ object is created
void_destroyExplicitly destroys the object
[const]bool_destroyed?Returns a value indicating whether the object was already destroyed
[const]bool_is_const_object?Returns a value indicating whether the reference is a const reference
void_manageMarks the object as managed by the script side.
void_unmanageMarks the object as no longer owned by the script side.

Detailed description

_create

Signature: void _create

Description: Ensures the C++ object is created

Use this method to ensure the C++ object is created, for example to ensure that resources are allocated. Usually C++ objects are created on demand and not necessarily when the script object is created.

_destroy

Signature: void _destroy

Description: Explicitly destroys the object

Explicitly destroys the object on C++ side if it was owned by the script interpreter. Subsequent access to this object will throw an exception. If the object is not owned by the script, this method will do nothing.

_destroyed?

Signature: [const] bool _destroyed?

Description: Returns a value indicating whether the object was already destroyed

This method returns true, if the object was destroyed, either explicitly or by the C++ side. The latter may happen, if the object is owned by a C++ object which got destroyed itself.

_is_const_object?

Signature: [const] bool _is_const_object?

Description: Returns a value indicating whether the reference is a const reference

This method returns true, if self is a const reference. In that case, only const methods may be called on self.

_manage

Signature: void _manage

Description: Marks the object as managed by the script side.

After calling this method on an object, the script side will be responsible for the management of the object. This method may be called if an object is returned from a C++ function and the object is known not to be owned by any C++ instance. If necessary, the script side may delete the object if the script's reference is no longer required.

Usually it's not required to call this method. It has been introduced in version 0.24.

_unmanage

Signature: void _unmanage

Description: Marks the object as no longer owned by the script side.

Calling this method will make this object no longer owned by the script's memory management. Instead, the object must be managed in some other way. Usually this method may be called if it is known that some C++ object holds and manages this object. Technically speaking, this method will turn the script's reference into a weak reference. After the script engine decides to delete the reference, the object itself will still exist. If the object is not managed otherwise, memory leaks will occur.

Usually it's not required to call this method. It has been introduced in version 0.24.

new

Signature: [static] new DeviceExtractorMOS4Transistor ptr new (string name, bool strict = false, DeviceClassFactory ptr factory = none)

Description: Creates a new device extractor with the given name

For the 'factory' parameter see DeviceClassFactory. It has been added in version 0.27.3.

Python specific notes:
This method is the default initializer of the object