4ee007190c
git-svn-id: http://llvm-py.googlecode.com/svn/trunk@32 8d1e9007-1d4e-0410-b67e-1979fd6579aa
50 lines
1.3 KiB
Python
50 lines
1.3 KiB
Python
"""Common classes related to LLVM.
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"""
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VERSION = '0.3'
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#===----------------------------------------------------------------------===
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# Exceptions
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#===----------------------------------------------------------------------===
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class LLVMException(Exception):
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"""Generic LLVM exception."""
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def __init__(self, msg=""):
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Exception.__init__(self, msg)
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#===----------------------------------------------------------------------===
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# Ownables
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#===----------------------------------------------------------------------===
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class Ownable(object):
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"""Objects that can be owned.
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Modules and Module Providers can be owned, i.e., the responsibility of
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destruction of ownable objects can be handed over to other objects. The
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llvm.Ownable class represents objects that can be so owned. This class
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is NOT intended for public use.
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"""
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def __init__(self, ptr, del_fn):
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self.ptr = ptr
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self.owner = None
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self.del_fn = del_fn
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def _own(self, owner):
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if self.owner:
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raise LLVMException, "object already owned"
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self.owner = owner
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def _disown(self):
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if not self.owner:
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raise LLVMException, "not owned"
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self.owner = None
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def __del__(self):
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if not self.owner:
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self.del_fn(self.ptr)
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