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class Glomp(): |
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@classmethod |
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def metaize(self, op=None, *arguments): |
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if op is None: |
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raise TypeError |
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fixed_arguments = [g(quantity) for quantity in arguments] |
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return MetaGlomp(op, *fixed_arguments) |
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def __add__(self, other): return Glomp.metaize("__add__", self, other) |
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def __sub__(self, other): return Glomp.metaize("__sub__", self, other) |
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def __mul__(self, other): return Glomp.metaize("__mul__", self, other) |
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def __div__(self, other): return Glomp.metaize("__div__", self, other) |
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def __floordiv__(self, other): return Glomp.metaize("__floordiv__", self, other) |
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def __mod__(self, other): return Glomp.metaize("__mod__", self, other) |
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def __divmod__(self, other): return Glomp.metaize("__divmod__", self, other) |
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def __pow__(self, other): return Glomp.metaize("__pow__", self, other) |
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def __lshift__(self, other): return Glomp.metaize("__lshift__", self, other) |
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def __rshift__(self, other): return Glomp.metaize("__rshift__", self, other) |
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def __and__(self, other): return Glomp.metaize("__and__", self, other) |
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def __xor__(self, other): return Glomp.metaize("__xor__", self, other) |
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def __or__(self, other): return Glomp.metaize("__or__", self, other) |
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def v(g): |
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"""Get the value of a glomp or variable.""" |
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if isinstance(g, Glomp): |
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return g.value |
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else: |
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return g |
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def g(v): |
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"""Get a glomp of a variable. If the argument is already a glomp, this returns it.""" |
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if isinstance(v, Glomp): |
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return v |
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else: |
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return BasicGlomp(v) |
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class BasicGlomp(Glomp): |
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def __init__(self, value): |
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self.value = value |
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def __str__(self): |
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return "g(" + str(self.value) + ")" |
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class MetaGlomp(Glomp): |
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def __init__(self, operation_name=None, *arguments): |
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self.targets = arguments |
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self.operation_name = operation_name |
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@property |
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def value(self): |
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return getattr(v(self.targets[0]), self.operation_name)(*[v(i) for i in self.targets[1:]]) |
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@value.setter |
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def value(self, new_metaglomp): |
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self.operation_name = new_metaglomp.operation_name |
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self.targets = new_metaglomp.targets |
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def __str__(self): |
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return str(self.operation_name) + ":[" + ",".join(map(str,self.targets)) + "]" |
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if __name__ == "__main__": |
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foo, bar, baz = g(1), g(2), g(3) |
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print("foo, bar, and baz are set as glomps of 1, 2, and 3.") |
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boop = foo + bar*baz |
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print("boop is set to foo + bar*baz: %s" % (boop, )) |
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print("And we can fetch the value of that computation easily as boop.value: %s" % (boop.value, )) |
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print |
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print("We can change the value of foo:") |
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print(">>> foo.value = 5") |
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foo.value = 5 |
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print("And now, when we fetch the value of boop, it is adjusted accordingly:") |
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print(">>> boop.value => %s" % (boop.value,)) |
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print |
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print("There is also a shorthand for evaluating a glomp: v(boop) => %s" % (v(boop), )) |
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