65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
# -*- coding: utf-8 -*-
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from ..Node import Node
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class UniOpNode(Node):
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"""Generic node for performing any operation like Out = In.fn()"""
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def __init__(self, name, fn):
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self.fn = fn
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Node.__init__(self, name, terminals={
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'In': {'io': 'in'},
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'Out': {'io': 'out', 'bypass': 'In'}
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})
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def process(self, **args):
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return {'Out': getattr(args['In'], self.fn)()}
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class BinOpNode(Node):
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"""Generic node for performing any operation like A.fn(B)"""
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def __init__(self, name, fn):
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self.fn = fn
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Node.__init__(self, name, terminals={
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'A': {'io': 'in'},
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'B': {'io': 'in'},
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'Out': {'io': 'out', 'bypass': 'A'}
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})
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def process(self, **args):
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fn = getattr(args['A'], self.fn)
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out = fn(args['B'])
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if out is NotImplemented:
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raise Exception("Operation %s not implemented between %s and %s" % (fn, str(type(args['A'])), str(type(args['B']))))
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#print " ", fn, out
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return {'Out': out}
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class AbsNode(UniOpNode):
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"""Returns abs(Inp). Does not check input types."""
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nodeName = 'Abs'
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def __init__(self, name):
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UniOpNode.__init__(self, name, '__abs__')
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class AddNode(BinOpNode):
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"""Returns A + B. Does not check input types."""
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nodeName = 'Add'
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def __init__(self, name):
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BinOpNode.__init__(self, name, '__add__')
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class SubtractNode(BinOpNode):
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"""Returns A - B. Does not check input types."""
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nodeName = 'Subtract'
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def __init__(self, name):
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BinOpNode.__init__(self, name, '__sub__')
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class MultiplyNode(BinOpNode):
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"""Returns A * B. Does not check input types."""
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nodeName = 'Multiply'
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def __init__(self, name):
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BinOpNode.__init__(self, name, '__mul__')
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class DivideNode(BinOpNode):
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"""Returns A / B. Does not check input types."""
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nodeName = 'Divide'
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def __init__(self, name):
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BinOpNode.__init__(self, name, '__div__')
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