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""" Classes used to represent functions and methods. """
# Enthought library imports.
from enthought.traits.api import Any, HasTraits, Instance, Int, Str
# Local imports.
from namespace import Namespace
class Function(Namespace):
""" A function. """
#### 'Function' interface #################################################
# The namespace that the function is defined in.
namespace = Instance(Namespace)
# The line number in the module at which the function appears.
lineno = Int
# The name of the function.
name = Str
# The function's doc-string (None if there is no doc string, a string if
# there is).
doc = Any
###########################################################################
# 'object' interface.
###########################################################################
def __str__(self):
""" Returns an informal string representation of the object. """
return 'Function %s at %d' % (self.name, self.lineno)
class FunctionFactory(HasTraits):
""" A factory for classes. """
###########################################################################
# 'FunctionFactory' interface.
###########################################################################
def from_ast(self, namespace, node):
""" Creates a class from an AST node. """
# Create a new function.
function = Function(
namespace = namespace,
lineno = node.lineno,
name = node.name,
doc = node.doc
)
return function
#### EOF ######################################################################
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