CellMLToNektar.utilities.Sentinel Class Reference

Inheritance diagram for CellMLToNektar.utilities.Sentinel:

Public Member Functions
def	__init__ (self, tf=False)
def	__nonzero__ (self)
def	set (self, tf=True)

Private Attributes
	_tf

Detailed Description

A simple true/false store that can be used as a default parameter value in recursive calls.

This provides a slightly nicer looking alternative to code such as:

def f(done=[False]):
   if not done[0]:
       # do some stuff
       if xyz: done[0] = True
       f(done)

The list can be replaced with a Sentinel instance.

Definition at line 142 of file utilities.py.

Constructor & Destructor Documentation

__init__()

def CellMLToNektar.utilities.Sentinel.__init__	(		self,
			tf = False
	)

Create a new, unset sentinel.

Definition at line 155 of file utilities.py.

    def __init__(self, tf=False):
        """Create a new, unset sentinel."""
        self._tf = tf
    

Member Function Documentation

__nonzero__()

def CellMLToNektar.utilities.Sentinel.__nonzero__

(

self

)

Test whether the sentinel has been set.

Definition at line 159 of file utilities.py.

    def __nonzero__(self):
        """Test whether the sentinel has been set."""
        return self._tf
    

References CellMLToNektar.utilities.Sentinel._tf.

set()

def CellMLToNektar.utilities.Sentinel.set	(		self,
			tf = True
	)

Set the sentinel.

Definition at line 163 of file utilities.py.

    def set(self, tf=True):
        """Set the sentinel."""
        self._tf = tf
 
 

References CellMLToNektar.utilities.Sentinel._tf.

Member Data Documentation

_tf

CellMLToNektar.utilities.Sentinel._tf

private

Definition at line 157 of file utilities.py.

Referenced by CellMLToNektar.utilities.Sentinel.__nonzero__(), and CellMLToNektar.utilities.Sentinel.set().