def __init__(self, node_type, rhs):
'''Initializes the UnaryExpression with the specified arguments.
Arguments:
node_type - Specifies the type of operation that this UnaryExpression represents
rhs - Right-hand site of the operation. Since this is an unary operation, this is the only argument.
'''
Guard.against_empty(node_type, "The UnaryExpression node type is required")
if node_type == self.CollectionLength:
Guard.accepts(rhs, (ConstantExpression,), "The CollectionLength unary expression can only take ConstantExpressions that hold tuples or lists as parameters.")
if not isinstance(rhs.evaluate(), (list, tuple)):
raise ValueError("The CollectionLength unary expression can only take ConstantExpressions that hold tuples or lists as parameters.")
self.node_type = node_type
self.rhs = rhs
def __init__(self, node_type, lhs, rhs):
'''Initializes the BinaryExpression with the specified arguments.
Arguments:
node_type - Specifies the type of operation that this BinaryExpression represents
lhs - Left-hand side of the operation (as in the first argument)
rhs - Right-hand site of the operation (as in the second argument)
'''
Guard.against_empty(node_type, "The BinaryExpression node type is required")
Guard.accepts(lhs, (Expression,), "Lhs must be an expression (an instance of a class that inherits from pynq.Expression), but was %s" % lhs.__class__.__name__)
Guard.accepts(rhs, (Expression,), "Rhs must be an expression (an instance of a class that inherits from pynq.Expression) but was %s" % rhs.__class__.__name__)
self.node_type = node_type
self.lhs = lhs
self.rhs = rhs
def __init__(self, node_type, rhs):
'''Initializes the UnaryExpression with the specified arguments.
Arguments:
node_type - Specifies the type of operation that this UnaryExpression represents
rhs - Right-hand site of the operation. Since this is an unary operation, this is the only argument.
'''
Guard.against_empty(node_type,
"The UnaryExpression node type is required")
if node_type == self.CollectionLength:
Guard.accepts(
rhs, (ConstantExpression, ),
"The CollectionLength unary expression can only take ConstantExpressions that hold tuples or lists as parameters."
)
if not isinstance(rhs.evaluate(), (list, tuple)):
raise ValueError(
"The CollectionLength unary expression can only take ConstantExpressions that hold tuples or lists as parameters."
)
self.node_type = node_type
self.rhs = rhs
def __init__(self, node_type, lhs, rhs):
'''Initializes the BinaryExpression with the specified arguments.
Arguments:
node_type - Specifies the type of operation that this BinaryExpression represents
lhs - Left-hand side of the operation (as in the first argument)
rhs - Right-hand site of the operation (as in the second argument)
'''
Guard.against_empty(node_type,
"The BinaryExpression node type is required")
Guard.accepts(
lhs, (Expression, ),
"Lhs must be an expression (an instance of a class that inherits from pynq.Expression), but was %s"
% lhs.__class__.__name__)
Guard.accepts(
rhs, (Expression, ),
"Rhs must be an expression (an instance of a class that inherits from pynq.Expression) but was %s"
% rhs.__class__.__name__)
self.node_type = node_type
self.lhs = lhs
self.rhs = rhs
def do(self, a):
Guard.accepts(a, (int, float))
pass
def do(self, a):
Guard.accepts(a, (int, float), "Argument a must be an integer or a float")
pass
def do(self, a):
Guard.accepts(a, (int, float))
pass
def do(self, a):
Guard.accepts(a, (int, float),
"Argument a must be an integer or a float")
pass